HomeMy WebLinkAboutLUA05-004Attn: Rick Stracke
Renton School DIstrict
1220 N 4th Street
Renton, WA 98055
tel: 425-204-4403
(owner / applic~nt)
updale: 01/14/05
PARTIES OF RECORD
KENNYDALE ELEM RECON
LUA05-004, CU-H, SA-H
Calvin Gasaway
Greene-Gasaway Architects, PLLC
PO Box 4158
Federal Way, \'VA 98063-4158
tel: 253-941-4937
eml: calvin@ggarchitects,com
(contact)
•
IPage 1 of l:
Kennycl.Je Elementary Sehoul Recon'tructiun
Ndghbomood Detail Map
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Rezl<rn Address:
City Clcrk', Office
City ofRenlon
1055 South Grady Way
Renton, WA 98055
Gronmr(s):
IIll
I, Renton School DIStnct No_ 403
"
PORTION OF CD
IN SECTION 32,
WASHINGTON.
'. "
lUACS-CU-\
it] reference number, aro on page __
Grantee(_):
I. City of Remon, a MUnlclpal Corporation
'"' aeross and uPO" tI II property (the
, I~II""",
SU: EXTIIIJIT "B" FOR (lRAPIIIC "MAP" ItEI'KI';SENT AnON
PWE00J9doe\ P'Y'I
Ii . installing. "-l"lfing. repladng. enlarging, <>per.ting and
llit; Ii L Ii to I the right of in g"", and egress !herd" wllnout
(I it I incurring any legal "hlig.11Onor liability therefor.
Ii 1 ilil; may from lime W lime constrnct '''''h additional
fadli!i •• as it may require. Thi, ea."'mem is granted .ubject to tho foliGwing (em, and condition,
I. The Gran'ee sllall, "pon cOmple<LflO of any work ","hin 'he P"'I"'''Y c~veml by the "'-",",ent. rcotore the ,ulf"". of
the '""'''' .. "[, aJld :my pr;v ... impm>o"",n" di"uroco ()' destroyed Juring execolion uf tho work, " nOll,ly as
pfllCticahle to (~. <ondltlon 'Oey ~re in ,mmediately before romn>e'1Cemcnt of the "uri; or entry by the Gr.,u"".
2. Grantor ,hail rel"m the right to use the .",face of the casemenl as long .. SIlch use d"", not interf .... with lhe casement
rights granted 10 the Grantee.
Granlor ,hali not, how",.r, ".,," the right 10:
"-Emot or maintain any buildlfl!'.' or Slructure' w"ilin Ute cll>Cmen" or
b Planllr""" ,hruh< or vegetation having de"" ",ot palte"" which may <au.'" d.unagc to or i""rfer<" with the
utilitio, to be pl"«i within the e"""'",nt loy the G.-..u«; or
c. Dcvelo~. 1 .. ,d",al'C, 0' bcamify tb, ' .... mont area ;n any way wIlieh would unrcason""!) ioc"," .. tbe cO.Il' to
the Gro"lee of '''''toring the <"""mOllt are. and an)' priv,te ,mpromnonts therein,
d, Dig. tunnel or perrorm other forms of <o"~tu,~io" artivrti", on lile prupcny whkh ""uld disturh the
compaction or ""earth Grnllt<e', 1",Il"e. on the righr-of_way. or '''dang" the I.te,," '"pport facilitie,.
e. HIa.<1 "'Ihin frfteen 115) fffi of the right_of_way,
Thi, easement ,h.1l run with the land de'cribod herein. and .,h.1I be binding upon the parlie." thelf heir,.
,uee,",,,,,rs in interesl and assigns. Grant"" covenanl th.t they are the lawful owner, of the .bo," propertie, and
that they have a g""d and lawful right 10 .. «ute thi, .greement.
Jly lhis convey.noe. Grantor will w.rram and detood the sale hereby made unlo!he Grantee again" all .nd every
person Or pe!>ons. whom.""<lver, lawfully olaiming or 10 claim the same. Tbi, conveyance 'hall bind the heir.',
e>oeulOrs. :<lmin"tmat"" and assign, fmever.
IN WITNESS WIffiREOF. said Grantor has cau<e<t I,"" ,""ruru'"""" .. "oo ",', ,Be ~~~~~~~~~J
,
Norory Seal mU'( he wilhm 00, ST 1\ TB OF W ASHlNOlUI, ) SS
PWEOOO9,docl
COUNTY OF KING )
I cenLfy that I kllo", ur ha,'e ""istaClory evidence that
signed ,ni, imlrumem and
""knowlodged it '0 bo hi"'h"'lt"o" f"", .nd vo]u"lary .ct for the u,,,. and purpose,
men,ioned in 'ho in"rum",,'
,
Notary (Prinl)
\
,
NUI",,-Seal must be within no<
NOlary Seal rnu>! be within bo,
Nul.ry Seal mu" be "ithi" on,
\\\\\111111111
"" V.FO(J,\/II~ ~ ":-;;i';;;'"·t;.:.,~ .:;: .'~ 4;,"~:::' ".,'0 ...... :;, :(j1;'l.OIA/(y '. :: ::: -;:: E-u,i PUBL\C ~iiE "' . . ... ~~~~ ~.'" $ ~ •.••. 16, ••. ~<;)~ ~ pj; ..... 'iI~ 1\. ... "Ill WAS \\'1: 1111/11111\\'1:
IM)!'-"'I 'AI, f'OIl,'I/ (W.1CKM>I</JiJ)G.W:,\"f
STATE OF WASHII\'(]TON ) 5S
COUNTY OF K!~G )
I C€rtify tha, I know lor hove ;al;,I'K tory e,idonee that
sigl\ed 'hi< i"","mem and
,el;""wkJged Ll to be hislhrrl'heirf"", and ,'ohm'"!), 01'1 lur Ih< ""." "oJ porpu>'"
mentioned in lile in",u"",,,'
Nola,y Public m and [or the Slate of Wa"hington
Notary (Prim)
My appointment c~pirc"
Dated:
HI,PNI, 'h HUIlT FORM OF -,(KMmLM)(;M~,,\T
STATE OF WASHI:-i(';1ll'. ) SS
COUNTY OF KING )
I oe"if)' thai I 'n~w or havc ,ati,factor), e,ide1ICe U,,. _________ _
~~~~~~~~--~---~~7--'igned thi, i,,"rum,nt. on ootll
<101,,<1 In" hdshd'hcy waslw,,~ ,uthn",..o 10 ",ow« 'ho ,""rumen' ,no
ackno~'l.dge~ lias the .. ,d ----77---
of (0 he the free and volu"",)' act of ,"ch
party/partic, for the U<e, dnd PUCPU"" mcnllonro in the instrumont.
Notary Public in and for the Slale of Washington
N"t'try (Pnnt)
My appointment expire"
Dated:
('VRPOHHE FORM OF A(ksfJll! HJf','1FNT
STATE OF W ASIIIN~TON ) SS
COUNTY OF KING )
On 'h" _1.3 d.)' 01 ..::G ~ . 20Q:5.. before me l"'""naJly appeared
~~r~s f: ~S """"."'.," be ~q.ll""l ~ of the corporation that
<",,"IN.! the ",it in ;""rume"" and "ckJJo"lcd~c the >-aid instrument to be th, free
""" ,o]""iar}' act and deed of <aid CGq",raiwll, lUI the "'"" and purposc, therein
m""~' "," "" ",," "~'",, "~:;:, "" ",",,"," ,,, ''',,'' ,,,' """,,m ',no that the sc .r!!x,," " '"e cc, orale "".1 <>f ""J corp"'''''''' ~ -i"J ~..2
No~' i:rbhC m and for Ihe Stale ofWashlllgton .
No ry tnt) S<'-!::1 G, ~ (l h,eHl MIYl 0,
M intffil)nt e~p:re" I'" /J/;/#
Dated, 7
FORM 01 OOOSibhl
RENTON SCHOOL DISTRICT
JOB NO. 246-011.{l04
June 28, 2005
Page 1 012
II I
EXHIBIT "A"
LEGAL DESCRIPTION FOR
WATER UNE EASEMENT
Those portions of Tracts 47, 48, 49 and 50, CD. Hillmans Lake Washington Garden 01 Eden
Mdttlon to seattle No.1 as recorded In Volume 11 of Plats, page 63, Records of King County
Washington, AND that portion of abandoned Pacific Coast Railroad right olway adjacent
thereto, contained within a 15 foot wide strip,lylrlg 7.5leet on each side althe followli)g
described cente~lne:
COMMENCING at the South quarter comer of section a/Section 32, Township 24 North, Range
5 East; W.M. being B copper tack In a concrete monument salin a casing at the intersection of
NE 28"' Street and Jones Menua NE;
THENCE along the south line oltha southwest quarter of said subdivision,
North 89'03'54" west; 157.12 feet;
THENCE North 00"56'06" East, 25.00 feet to the northerly margin of said NE 28" Street and the
1RUE POINT OF BEGINNING of this cente~lne descrip~on:
THENCE North 00"00'00' west 1 :3]5 feet:
THENCE North 26'0000' West, 287.10 feet to a point hereinafter described as Point "A":
THENCE continuing North 26'00'00' West, 14.00 feet:
THENCE North 00'00'00" Eas~ 11 ,00 feet;
THENCE North 45"0000' Eas~ 72.98 feet
THENCE North 90'()()'()()' East, 205.08 feet to a point hereinafter described as Point "B";
THENCE continuing North 00'00'00· East, 4921 leet:
THENCE North 63'40'53· East, ]2.41 feet to the southwesterly margin of Kennewick Place NE
AND the teJ1Tlinus of said easement cente~ine.
'" " ... "." ",," '" "'" '" "" F, d.", w.,. W' ... " ", '"'' '" ,,.,
www" .. ",,,.,, ..
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e" ",m ['''I '" ""
"_I' ,",Ionel" L"d " ... 1., 'co,,,, "'".,.'" .. , MLI, W"" " .• " .. "I"
,
June 28, 2005
Page 2 of2
TOGETHER WITH that portion ofTracl 47, of said Cn. Hillmans Lake Washington Garden of
Eden Addnion, contained within a 15 foot wide strip, lying 7.5 feet on each side of the following
described centerline,
COMMENCING at Point "A",
TliENCE South 64"00'00' West, 7,50 feet to the TRUE POINT OF BEGINNING of this centerline
description;
THENCE South 64'00'00" Wes~ 16.00 feet to to the terminus of said easement centerline,
TOGETHER WITH that portion of Tract 49, 01 said cn. Hillmans Lake Washington Garden of
Eden Addition, contained wnhin a 15 fool wide strip, lying 7,5 feet on each side 01 the following
described centerline:
COMMENCING at Point "B",
TliENCE South 00·01'31' East, 7.50 feet to the TRUE POINT OF BEGINNING of this centerline
description;
THENCE South 00"01 '31" Eas~ 73,95 feet to the terminus of said easement cente~ine,
TOGETHER WITH that portion of Tract SO, of said Go. Hilimans Lake Washington Garden of
Eden Addition, contained within a 15 foot wide striP, lying 7,5 feet on each side of the following
deSCribed centerline:
COMMENCING at the said SoLrth quarter corner of section of Section 32, Township 24 North,
Range 5 East, W.M.;
THENCE along the south line olthe southeast quarter of said subdMsion,
South 89"14'40" Eas~ 120.15 feet;
THENCE North 00'45'20" East, 25,00 feel to the norlherly margin of said NE 28th Street and the
TRUE POINT OF BEGINNING of this centerline description;
THENCE Norlh 00°00'00" East, 12,42 feet to the terminus of said easement centerline,
SEE ATTACHED EXHIBIT "B",
WAITfEN BY: DWA
CHECKED BY, MRB
I1E"m8IEng~ESM-JOBSI2451111G4\DocumentlQl10G4 WATER EASEMENT,Doc
EXHIBIT ""B"
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.,.. CONSULTING ENGINEERS LL"
700 9. "'4B", S...., I Ii I • I 'til F_ Way. WA 1>11""'"
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JOB NO.
DRAWING NAME :
DATE :
DRAWN:
SHEET 1 OF I
n
'"=100'
(
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246-0\2-004
SR-02
6/28/05
O.WA
• "
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AFHDAVIT OF SF:RV[CF: BY I\1AILI~G
,;'),\lE OF WASHll\GroN )
) ,",
CO\lnty of Kjn~ )
Kaney Thompson being fir~t July S'\o(ll-Il. lIpon oalh. d~poses and states:
'I hm 011 the 22"" day OI'MMCh 2005. allialll J~po"led via the United Stmes Mail a ,~al~d
~l1vdop~{ s) conlaining [I decision or recolllillendation "ilh poslage prepaid. addressed to
the pJrtic, of r~Cllrd in the bdow enliticd applicatlOn or pdilion_
SignJtllrc:
SUI3SCIUm~D A;\iD S\VORN to bcl'>re L1l~ Ihi, ~nJ day or Il2lU(,h .200S. ._--
~.AJ~
:\ ola!) Public i~l1d f~r I!'; SIalC nl-Wa,hinglon
Residing. at ~_ . lh~roin.
Kennydale Llcmeillary School R~wnstruction
hie :--.Jo.: LlJA 05-004. SA-H. CU-ll
The Dc";" ion", Recomm<'mia/ iOll coil/aim a ('(JJJJple/e li.l'/ (Ii Ihe PUri irs of Record
Minutes
APPLICANT:
CONIACT'
LOCATION,
SU).,lM,\RY OF IU\)UES I,
SUl\IC;1ARY or-At-liON
PIJIII Ie: I-HoARI,,(j:
OfFICE OF THE HEARmG EXAMINER
r:ITY OF' Rj;;NTO:-;
Remon School lli,lriol
1220 N0r11i 4'" Sfreet
Remoll, \VA n055
Calvin Ca<oway
(il eene-Gnsa,,,"y AL ell Ltc~l,
1'0 Hox 4158
!'cdc,.,1 \\iay, W A nOfil.4158
Kel1nydale FleHlcnt"y ~wlwol R~co1lSlr"ctiQIl
I ileNo' LUA 05-004_ SA-II. CU-II
1700 NE 28'" Slleet
Mnrdl 22, 2005
Cl,"dilion"Il!,~ ,mu Sile ria" appmVJl10 construct a two-story
S1fuclLLre Rppro"imOlely M,OOO square feel 10 r~place [h~
".~i'ling clcm~nl<"y ,choul bui Id ing,
D"v.Jopmellt Sc,,'i"~, Recomm~ndalioll, Approve ,,, ith I wo
c~nditlullS
Tile J)cI'clol" nent ~CI' ICC' R~I'''r' "'" rccoi, "d by the
"'a",iner un J\.1ar~h 8, 2()()~.
Alkr ru",e\\l!lg Ih~ Dewluplll"ni S.", ices R.port. e~amlmng
avaibble in/()fInation on lile with the application.lield
checking tlw pmper1y ami ,urrollnding are~; the ['~am Lner
e(HL<lucteJ a PLJhli" hoarillg on tile slLbj~ct as foil",,,
MINUTES
Til" i"I/",,-i"K ",hlli/e,,' ate a ,,",,,,,,,wry flf file .. Ward, 1.5. 21111.5 hearing,
Tile legal rec'(",i;, rl'l'(ml,,(/ "I! C1).
The hearing l'pcLLe" (In TLlC<LL1Y. Moreh 15,2005, at ~:OO ",m. in Ihc C"ullcil Chamkrs "" th~ 'cv"nth floor of
the Renton City lialL PaLtle, "'L<hitLg to testify were "ffirll1~J by the Examiner.
Exhibit No. J: Ydlo\\ jik "'"ll"i"ing Ih~ original
arp iLeal in", proof "I r~,TI"g, pm"l of puhl icalLon a"d
other docume"t",i"" pcnincill to this '-~g"~'l.
hhibit No, 3: Site Piall
~;xhi bit .'10. 1: :-<eighborhood Mar
E,hibit NLl. 4: llemolilloLlI'Io"
Kennyd,,'e [;Ielllen,ary ~chool ."~()nstr,,ctiol1
File No_: LlJA_Oo_OO_!. SA.]], CU_H
March 22. 20(l5
Page 2
""hibl' !,<", 5: GmdiLl' and Dminn c PI,,"
Exhibit No, 1\: L""d,en Ie Plan
E.hihi! No, 13: /onHlg ~1",
F.xhihil 80. 6: Waler and Se",er Plan
"xllihil No.8: Overall Sc'Cond Floor PI,,"
!':.ltilli! No, 10: Tree ClIll;n and Land Clearin Plnn
bhibit No. 12: Llndsca~ Pia"
lC~hibit No 14, ~Ii(i .Iion Mea.,urcs
-J he hearing opened ""th n pre<elllatjo" 01'1110 staffrepo'1 by Nnncy W.ii, Senior Phmner, Devel(lpm~nt
Services, City oj R C 1I1un, 1055 S Grady Way. Rent-)Il, Washington ~&055. The school curr"ntly is located al the
inlc,",c~1 ion [)f N En'" StreeT, Kenne" LCK Place N E and NE 30'" Street and abut, Interstate 405, The proposal is
to repince the ex ;,, ill); school with a two-Ilary sln,olllce, approximately 66,000 squar~ fccl on Ihe t. 7J-acre sLte_
The reason for Ihe COll(lilional Use Permit is the toct thallho proposed SlrUClllrC;S guing 10 be greaterlhan a
10% IlICrc",e illihe !;"''' fl~or area, The Prol'''''!)-i, 7{)"od Kcsidential-8, which lS a ,ingle-f;un;ly w]ling,
ho"evcr schools al~' pelillitled ill Ihe R-8 zonll'g_ The ,ilc ha, gone through a ~oning amendment 10 include il
as public land "'II>e I'uhlic I,nnd Overlay lJi,lrict (1').
The area i, ,"rrollnded by rcsidenlial me, Ihore is some eo''''nercial to Ihe north and Int."tule 405 is to the west.
The Env'"onmell1,1 Rev'le" w"' ,lone by Ihe Renlon Scho~1 Di,tricl I boy i;slled a Delennjna!ion of Non-
Significance _ M ill!;[(I.d "itll foto" 111 itigation mea,urc,_ N" appeal., hnve heen Ii led,
Fire and T, aftie \t i I igal io" Fc", "CTC impo,ed hy the F r)vil onmontJI J{C\ icw Committec.
Contl;li,,",,1 C,,"
Tili, si1e is C()I1',-<1em" Ilh Ih~ Compreilensin Pial), it i, ,Ic,igllated as Rcsidenti"1 Single Family. Iho prop"scd
Cr"'\"lIWlioll or the use i, e"ns;,lo,,1 with! he cri leTi". Zoning and Dc\,elopmcnl standards arc i" compl iance
wilh the 1<_8 zon,,_
The Kennydale ~chool '·lLrrenll)-exists allhis ,itc, the propos"l ;5 for a new two-stor)" stmcturc and will be
'lightly lurg.r an,l "ill eo,,-,olida(e all the Sln,otur.s illl(} one I>uilding. The propo""l will be an increase trom a
clIrrent 11 R% 'n (4,('% lot coverage, The ,ite '-, ndcgllale to c()lllinue this t~rc uf ",e duc to Ihe SifC nfthe site,
which i, more IIlon six acre, and (he pe""il1c,1 ",e is Jllo"ed_
Tile pmp",nl l·~CCCJ, the requirements f"r )-ard reqlll rements, W It I> the publ ic ,,,flix that docs allo" for public
buildings to e,ccod lile height lilllit or30 fee!. this ,Iructurc docs Ila,e various heights, the maximum rrop,,_'cd
i. 43 fecI 2 i""h~,,
A tol,,1 of 97 parking spaces would be pro' id¢d for ,1aff and v;sitors. This parking will be consolidated towards
Ihe ,oHlh end 01 the $IIC in two parking area,. O"C for ,lafTalld one f," visit"rs, "hich "ill include accc,s for in
and Ollt ,Iropping off of SllJrlelll \, The lcaflie "i II remain the same hut "i II ho gremly improved, I'edcstnun
access Ucm" 2~" \I ill havo" new cro"wJlk, IllleJ iOl' crnss"'~I~, will have dllTerem pave,,;n order to be mOre
~i"ble and ekorly IlHlrh,1 for bolh ped",lri~l\s and moloriMs,
There ,hould be nn illlp"ol ,h," to noise and glare "'th the proposed lL,e. No ncees",ry uses arc proposed.
•
KerlllyJalc EI~Jllellla,-}' ~LIll)ol "ceo" 'trLLdion
rllc No.: U 1,"-(15-001, S.l.,-II, ClJ-J I
~larch n. 2005
p"~~ l
SUe I'I"n:
The propo'"d " i'L c,""pl,onee ",th the Co"'prch"",ivc l'llm "nd is "elllLnder the allowed lot coverage. Th~
b'I<b""p'"g pi"" dLK' II.,t 11,ldl'"" the ]Wr1I',fJl ~nd of Ih~ sile hec~ltse Ihc alhleTic lid,1 i, clITremly localed thel'e
and il ", III nn{ he itllp'Cled b} {h" prnpo,cd rew",1 "Id ion of I ho l,,,ilding. rhere i.' cxi'tmg I"mbe"ping lhal
[,,110'" al''''g Ih~ "ll,1h,,,,, ,,,,,I "rlh" silo ,",o,,"d Ihe mlll"ric liehJ {h,\! will 1101 he "ffooled, J Ile Lle\" pion
propo,c, I""d.'c" ped <I, 'I" "'ilhm the porkl ng are",_ I hoy"", ahn m" i 1l1"ining the larger exi,{illf,ll r~e, when
p""ihk 1'"<;,,,1" hrld""'l'"lg" "I", beillg pkm"ed around the building.
ThlT" "r~ {",l drai ""~~ I"ci I i I ie, plannc'd rnr III is site", one oll'ng Kl'LlllCV. iel ,md I h. oliler i, 10cmeJ al""g J.405.
Tb"se 'Will k ,,'pi '" glc~n 'pace> '" "ell.
Bui Iding he i.~llt m,'c!s lhe ?Oll i ".~ requi, ements ilec""sc the sil" v. ill be eonsol idoted intn "ne new 'truchJrc, n
lwo-swry bu i 1<1 i ng, il is Iwl allli~ipale{1 Ihe nev, 'lluctllre will cause "ny ,oJdilional impucls 10 the ,urroundillg
prope,l ie, '" The Ilci~hhmh""d.
Demnl i, '0" "I' Il,e n ,-,I i"g ,1",Clure IS J"[)I",,~d I u hcgin June 2(1, 2005 and the CUTTlpicl ion of thc entire sile is
pT"P",~<I Ii" .-\ ug"" I 4, 2(HI6. Sh{lr1-I~rm ,wise and t, oitic impacts dUrlllg lh, con,lrudion period ha\ e been
Malt with ill thc mi{,got,,,,, mea.'lll'CS ""po,ed o"lhi.' l'",j~cl,
OW~llJ).~.llnis.(lIl. AIILlI. 316 Occi,l~nlol A,enlle Smith, Suite 320. ~ealllc, WA 98104 staled that he was the
pc"ni11 ing alld ~rl' A (:"11,,, II alll I" 111" R,nlon So'l",ol Dislr;cl for III is projeCl. The RellTon School Di;tricl i,
prop,,,i,,!,; 10 r~pl"lT Ih,' ni'lilll; KC"nydak Elementar) Sch(}ol con'trLlcl",1 in "houl 1'170 to p,ovide an
'"1P"" ~,1. 11 ""lUll 1''''11 il c h 1 II reef T he cLlTT~nl c(i,,~m"'nal prog.r .L1"ming ,,~ed, "t" Lhc [)i,lr;ct ,md lhe
C')II""l",;t)'. Tn () ,eho<11 l'lll, iL" n,," I. lhc ad,"," i,11 al;on '1fea providing ,"'pcrv "cu ~"lry for Lhc lohb) alld I he
~'" ,mJ parelll I'Jrkillg 101'.
I he arcilitec1LIlal de,i~n olThe buildillf\ will create all ""ct IiJr Ih" com"","ily wilh an open enll'} and lobby
'pacc. ~ri("k "~teri"r "",I pre,cll"e 011 Ihe ,I ,-~eL Ille clJ.'" _'om w,ng i, :JrticIlI""rJ 10 gi' e idelllity to individual
clasSJ(}oms ~nd tn b,e.LI. i{ ",to ,m,llcr pOl11On, 1,)[' Il,c Im'l1a" "'"Ie. Sil~ imp,o\'cment' include ",el'",.,i[]g tlw
p",l.in~ ""I'de ,I y, Ih~ IlLL' ""d I'"TCHI drop "ff ","pacily ,md pro, idiLlg a separatioll nf hu, ""d ,lall'ln, ffLc from
parenl !raftk I;-,)Jn peM,[J iall. New play ore as " ill includc rlLbbcr mal., ""dcc pby "qllipmelll slrllcture, and a
""" ~ll\'"r"d pl"y mca. B"c,,,,,~ Ihi,;, all eknwnlary ,cho~l, lbe ,idewalk< were inte"ti,,"all~ pulled b"d, ,"
mder tn a ""iel II LC C,)1( Il'~1 beT","cll pedest".Il" "lid \ ~Ioides, I he ~xislillg crosswalk enlcl's the <Ltc from thc
sidewalk 0" the "'L1lh .,i<le of N E 2S,,,-"hat h" been pmpo,cd " In rcnl<lW lhlll em,," [Ilk, provide a "",,"walk
ca<,l,'",,, "Ic'"g.t [)Il"' ,\ 'TIlIl" ",](ll'r'" ide" Ill'" ,i,kw"l~ f"llo" illg Ihe south side ()f i\E ~8'" 10 a P()lnt past lhe
in'c"ceti(ln '" 'hal ~,,"flielS will he "voided willl \'chlCles Thc Sidewalk aero.", NE 2R'h will b" Ill~"ted \w,lllf
the ex il 1l1,i,,, ["r I he p,,,cl\l drop."ff ""d ,i,itor p"rki~g.
I he pmjec{ k"'" agrees" ilh Ihe eOllelusillll' of Ihe ;lalT.
K", ren Kill"",, ll~\'clopm"Jlt SO" icc> 'l"led 11",1 Ihc Cil} ,I"e' '""" the sile, they ha\c ,"",cd the "Ic and il
'" i II conlinue to 1>" ,~, ve,i b} the 1" oper uti lities, Also, a, i, lyp Ical "I' high lrorliC p,cinds "I ,chollls, lhey dll
),,'w ",'"lml I'e(ll'k "I ,'rn"",,,lk, 10 I!Hlke "'''' lil" ~hi IJrell ob~y Ihe proper low, as ",ell a, to look out for 1hem
"ith the 'ebides Ih"l :"e coming ami going. 'I his is" much belter ,etup than "hall],"}' havc "u,,"nlly,
Staff, ~C(lI11 mends "rp' 0\,,,1 0 I' thi, p' "jeet " illl twn cOlldit """
K~nn) dale Elemenwry School "~constr"cti,,o
File ",',,: U),\-(),-I){H, SA_II. CU-H
March 22. 100S
Page 4
The F.'amillcr calle'! for !i]rlhcr testimollY regard ill!( tllis project. There" a; no one d ,e v.ishing to speak, and
no j"rtller wmlllontS Ifom .'tatl: The htarilltl c I",",i 'li 9:3 I am.
nNDI:>'"(;S, CO:"("LtiSIOI\S & RF.COl\J:\IF.ND,,"nON
Ha,ing ,eviewed the row,d in this t)latt~r, tho Examiner nov. ",o,e, and cnlo" the following:
F1I\IJINCS,
I. The applioant, Rellt()n Scho,,1 !list I ict, tileu " re'I"cst Ii" app"" al or a Condilwnal Use Pem,it "nd a
Sir" Plan ro' tile recn"'tr""li"~ "flhe Kcnlly,bl. ElemcnLlry SchooL
The) cllow Ii Ie cOlltail\ing the staff, eport, the Sme I'nviromnontal Policy Act (SEP A) d"cumelltation
alld other 1'~r1in~llt ",aterial., was onte,ed into rhe ,eco,d as Exhihlt # I.
3. The Rent,," School I)i,tricl ~cting as ,espo",ihlc oflleial, i"ued " Determination or Non.Signi Ik"nce -
Mitigat"d (D;-.JS,M).
4. The '\lbject prop",al was reviewed by all del'"rtmenl< with"n intere.st in tbe Ill~tter.
5. '1 he '\lbject ,ile is I"cated at 1700 NE nth SueCI. The subject ,ite is the campus fo, the Kennydnle
EkillClltJrY SchooL The sile is located eIL"t "r I-4U5, ,nlllh orNE 30th Str""t, c·,,1 ofKe""e",ick Place
;-:10 and ,,0,111 oj };f'. 28th S"ee!. NE nih ~"eet dead e"d, at Ihe western edge "rthe subject ,itc where
il """ 11110 1-,105.
6. .] he .'lLil.lect "tc IS" triangular 'haped parcellha! is 293,685 square feet", 6.73 acres. '1 he suhje<ol >lle is
arr",~i,",,[e I, 600 jeet wide ("ast to well) by approx imatdy 600 feet IOL1g.
7. Thc "Llh.icct ,ile was onnCxc(11O the City "'tll [he adoptio" ofOrdinallce 1827 CI",ctod ill Muy 1960.
8. Tile mop eieillellt "I'the Conlr'~hc",i,e 1'1011 dc,ig[wlc, the area "' which the ,uhJect si[o i, locatcd as
",ila hie ro, the developl"~nl of single-j"mily me hut doe, IIul lll"ndale such dc' elopment " ithout
cOllsidernt I.,", of olhe, pol ic ie. of the I'la]]. file 1'1.111 po,mil' puhlic schools ill 'ingle-fami Iy
nci ~h l,,,,hood,.
9. '1 he 'uhjcct site is CUI rently ,otlcd R-M with a P-s" I fix. .] hi, designation indicate.' lI",t ti,e subject ,ik is
oWlled by a public entity am] ,eqll i res speCial nOlicc if tile use were In ch,mge, the owncr;hip were to
change OJ if cel1nill "se, nrc prop,,,c,1. Tile ClI"enl prop",,,1 reqlli,.., a plLblic hc"ring and notice ill "ny
event. The [{.g roue pc,mits structures to be 30 reet tall bllt ,he l'-sullix pemlit, a oonllS h~ight of an
"dditinll,d 15 le~1 if pitched roofs me emplo}cd 'In the ard,·,tecturc.
I O. The aPI'I,c:n'1 rrol,o,es demol ishing the e~i,t'ng ,cho,,1 and reh"",1 ing" new huilding in it, pinco. Th~
bllildillg" ill he loo,,[od in lile central eilSI pOll ion nrlh~ ,it~. '1 lie hall ficld, "ill remai" in lhe northern
til ird "r t II~ ,ile ",,,I porki"g "i II bc loc"t~d along the sOllthern edge alld ,ourl",'cslcm comer or tho
,lIbjc"(;t ,ite.
I]. Tho "rrlic"nt lIas req"eSkd a C[)nuitlOnal l),o Permit that wOllld all[)w the "pplicam 10 in~rease the
gros.' n"or ",-ea by more than ten porcent (10%). Th" floor area "rthe cu,.rent complex is appr<uimately
53,685 "Itlare jeeT "",llhe propo<c,1 bll i Idillg woul~ bc 65,968 ,quo", r~et Of approximately I 2,000
KOllny,ble f:lell1enln,y School ""COnSlrllCiion
rile C\'" UJA.O';·Il,ll, ;',\.11, UI·H
March :!2, :!(lOS
P~gu 5
''I"are IC'N ,,1~lhn,,"L Th~ gro'm<l level footpJ'l nt oj the " ructuru would incrca,c hy approximately
S,(lOO "ILla,-,' feel
I 2_ Thl' WIllI'I", \I Ii I c'f',]["i" cla,srooJlls, lib"",\,, ""'''"re" arc,,,. pfl;,." athletic orca" " commons ~nd
~'ld'CIl,
13. III orde'-I,' '\LC""'111i,I, Ihe cOIl,lnJ('li,,,,. aprlo~imalely J.1 tree' would be r~ll1O\ed_ New landscaping
",!'"I,I bl' I" ,n "bl "rounu the new blti 1<1 ing ~Ild parkiJlg "reas and e~ iq ILlg lan,l;capi ng ill tho north p"n
of tile CO>lll'ic;., ,,,,,lid bu re",ined_
14_ I he no" blld,IIIlg will be two-sto",'s N "I)jl,nxim.\(cl) ,j) led lall o( it> highest POttlL II wi]] comply
with the hcigln limits allowed for R-8/P <lIilix "'~ Ihat allo\\s" height of 15 fcel mer the "or",,,130·
foot heigJnllnH!
15" "I h~ l,,,; lei ing \\ til co"'ply w,tlt '''Ibacb that e"ta~li,h 15 fOOl IrOlll >,,,,1 and street .,ide y,,,,J setback and
2111l'CT I,,, Ih~ '"'" )"r<l, "I he norr0WC'I_,ctbnck will b~ 4(1 feel "long Kennewick I'lace.
I 6. rhe ,,-..t,:r,p, "",,"IIL'III \\ ill b~ ,,1,,111 i n"l11 c "rt" "' wall and brick '11",O"'Y, J he tocade "iJJ be articulated
The 'I '-"~llIr" will fcatLJre a \,nricty ,)1 r""nitl~, inc luding Ihe peok fOnl' 'c'l"ired of stnlCturc<, "~c~cding
lhe nOlm" I .'O.I,,"t height I imi\> of the zonc
17, Illel~ \\,tli be ~7 1''' ,illg ,Ialb located in the two p.orkin~ ],,1, along the ,0uIIl lw"gin ofthc "tc
I H TlL~ "ppl le'''"1 he" ,·"d,·,,, o,od to cre,M sq)a, al~ circLlbt '0" palle'TI" for ~"c'ls ,,"<I for stoff ""d ,eI,ool
hu"c., II le" 10,,," "h<' ,-~I()c"tcd " c, "'''''' II; tn mitl imlz. pC1teiltial l}cde,lTiall 'IOU vehiclc conlliel"
I '-) Intel I(lr ,,,1(,,, alb ,·,,,,nee! l<l tile public ') ,Ielll and crOSS\\" Ik across NE 2RI h Street.
CO:>iC J .IIS I () :'is:
C"n,lition,lIll,e Permit
I, 'I he "rplicam l(Jr "C"llliOliufL<l1 U,c Pel mit mlLst demollstrate (h«1 lilo ,,,. i; in the public interest. "ill
"", impair Ih~ health, sofety or well arc oi' (ho gOIl"",1 public and ;, in cm"p 1 i'1lloe "ith the criteria f ou"d
ill Section ·l-~·(n{) (; "hich provide,,; in pat1 that:
h_ I h~' c i, " ~el1e,"1 comnll," 'ty "oed jm the jlI'oposcd use at tile pt<'l'l"cd location;
c. I bele ",II he no "",iHe ""rac!> on adjacent property;
e P:lfki,,~ \\111 "ot he intrlLsive;
i' I '" file <lnd pe<ie'H'ian CLrc"lot 'Oil "i II ~e ,afe "nd adc'lualc lor liLe prollo>ed r"',IC~t.
g. i'\ ~""_ I i~1l1 ,,,,d glare' \\ i]] Iwl ""IS" Oil ad,'cr,,, alket nu ucighhoring propet1\':
'U"ld n.""'~q~.l(I",u:) ~'II 'Il!." ,,"URUUOJUO.) 'n
. ""'lnlJW""~ \lU!'''''lll,1 ~'11 J'G ued U! p"I,,~,aJ(b-, /'11 """.,~ "U
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U81.1 ~I!S"
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"01 p~lsnfpu"! \1!Unw"JO~ ~'11 '~ll"e~" "IlU""lJ!ujl!S l"l! I[!'" \lu'I'I'n'l .,,~u ~'11.!0 sl~~d",! ~Lllln8
"~!\Iu'l .{[l"'~J-~I\lU!' l"uoIHppe 'II'" lIO!IUjOI nLlJe, ~'11 \luI[[!l UR~l ,ped",! .JotU ""I 100l1" " "{I1"~[J '1'
'~~IJ"'(l" JO ~<I \1 "'11 p~l~p0U.' LLL"~~~
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~'11 'UO!l!PP" Uj 'UOII"jOI le'll "! ~Uo u,",potU "~,, ~ 'II!" jjll! PI! "q PI" Q41 ~'"Id" 01 <11UudnJddu """0'
II "I!UnUlU'O~ ~'Il pllU SIU'Plll~ po"o, S~'ll"'[lllO!I"'OI num" jutll'" ~UO '~Jqd~.lI(}()Y"' p",odOJd ~LI.1 '£
"Jlnq!Jll~ X!lJ'''-d ~\11 01 p~p"rqns ~uoZ ~-~ Jill.!" ,pj~pUl1l' V~qH' pUU W'q ,no!"" "II <PJUI
OSIU IOO'l~' ~'LL """IU""!<~P g.}! s,~PO:J ll"!LL"Z "II ,'q pJllIlluod "'Ie S! 10otl" .'1 L 'Ioml~' "II WOJ.I
P"u 01 S"~~OU n[~TIuos~"J ~p!.\()jd 'llOr::lN pu" V!"QULl."l)l '1""1 '1"~lS IU!J~)J" u" lI0 '(II'~Jl[ll'"I~"O[
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SpOOl[lOql[jl,~u 1~!IUOP!S"J U! r~IUJD[ ~q ,,~~ '[Ootl'" "!Iqnd 1"41 'I"jljjn'i ""[d ~''',>u'''1~ ,dU!O:l ~l[ L "
. P'!I'I'TL I" ,'JuoJdo ~"n IUlIO!I! puo~ p~ISonb~J n4.1
. ["~,,duJJ ~L[l ~.\Jas 01 oIQ"I! ",," JJu ,~~,,""' ~! [tl ,,<1 ~lrr"b"JlV
pU" '~I"!J<[()JLluu ~J~'1"
h,.dold ~,,!,oqli'il'~l1 PLL" .\n'''-Jo·j,lllii!J LUOJj .. n "'II J,'ll1Lq "I ju~!"wn' ~'l 11"L[s iill!d""pmq ''1
9 ~jju.J
,om: 'r, 4"'UW
ll-n:J 'J{' VS 'tOO' ,O'VO' J :'ON gl!,~
UO!P[LJ)'LlLlO"" romps ,(j"IUOLL[~[:J "IOP{"U~)[
Kcnn}dale Elemental] School ""con,tllleti,,tl
rilc n,.' IJ},\.05_0()~, S.-\_II. CLI-II
~larch 22. 2005
Page 7
d 1\-1 it ig:at;,," uf Ihe impacts elf the prop".,a I 011 the '" hjed ,itc ,I,dr.
e, COllser"ation nfllrl1pen" \'~llIe,:
12. /\ IlUmbel elf the cri tel ;a 0\ erlap tho,e found in the Cond Itinn" liT" prc'\,;,;ons. A, noted, the
C olllpr~h'-ll" vc 1'1" 11 p~r",ib >eho"b ill r"ide])1 i" I n,' i~h borh,'ods ~Ild the mc IS ~ppropri"tc ill Ihi, ar.",
a, it, jlle<iecesse'" wa> ,,,cI00me and al'proIH'''J!C
13. '] he proposed lI,e m~cts the SCHlOck. hc l~hL hLJ I k alld 11," pro. isioll' of the Loning C o<ie. Compl","cc
"il h ~"i Iditlg alld fin' code, " i II l'o ,-".' io" eli "hell add l1i01101 pcr "lLh '''~ SLJ bmi!ted by the JPlll ieanL
1-1. I he Ile" ~"il,lillg lI'ill be ,"!bad nn all siM, ot gl",tCl di,tOIICC' Ih,", 'hc I'''gesl ,dh"ck nOl'mall)
reqllllcd 'Iile "'"',,'1L'''' ,ctb.,c~ fcq,,,,ed \",,,Id he" cO I()(ll rcar yard and lhe seilo,,1 ",II he pr<l\ idill[l
,,4(1 ]p"l ,ctb"c~ a, II, "",,lle>l, '11~cHlde. ,iJ~ ya,-,I along Kennewick It' high"t point will De 43 fe<1
""d pikhc-d fe'uls 1,-" ,i"!lk la'ilily hL""oo "<J" "pp",ach thai even in a zone ren"illillg ,ingle family
I,,'mc, I" I'e :>OlCel.
I 5, The rropo,cd plan, " !\\ o-'tory cOl11l'ln \\ Ith l'i!clled "'(lilille, and reasonah Ie ,C!hack, wlllllOl creole"
S"I"I",,1 i al ifill''''! ,lI I Ihc "k, The ,,"w b"ilding" il] consol idate ,cpamt" huilding' into one, -I he open
,port, t.c Id, w.11 he fclJincd crc.ltillg a vn.,1 "pCll 'I'''c~ feel illg,
16, Ille {Ie, c l"llinen! 0] I'athel J ede, e lorment of a I1ew h"d!llllg 10 repl"ce "n old build Ing wi II L,,",CrVC
I'r "pcrty \ alLlc, "'H] Cl1h""Oe ! he al c".
17, A, nuted "bo\'e, "i, "ulati,," pattern, tor \ ch icles Including -;chool b",e, and parent -drop otflocation,
"'Cre rc' ie,,"cd "'1(1 "IICC,d to pro, i(lc ,af~ ''''U efficient flow
18, Th~ lwo-,I",y ,'amp'" ,i1"uld allo" ,""",""hk air ",,,I light 10 reacllille complex .1mlllci[\hbpring
propccl "".
I 9. III COl" IlI""'L thc' I" "I'"",J mc appea,-, to ho a well-designed, cpllLel'[I,cnl fOT an old school and shnuld
CO"'''"'c-10 he" gnn!1 neighbor "' the cl',,"nLIl]i!).
IIEClSI(INS:
The COlld'l i('""I1],~ Pel""! ;",eI Site PI,," nrc appro'cd subjecl to the following condi1"'""
Kennydale [k",""l",-) School "~Lol\,trILclilln
file No" I. Ui\ ·05-0tl~, SA-II, CD_I!
March 22, 20()5
Page 8
I . The appl icall! 'hall Iw roq uired to ,ubmll a I ightillg ilium Inalion plan demon,'m'ing adequaTe
lighling i, provided for the pal'klllg "rea and the building. 'I he plan ,hall also delTlOmlmte that
ti,e I" oposed ratkinglse~"rity I igllting wi II not spill i"tQ Ihe publ ie meet <lr neighboring
p"'pcrl ies, 'I he plan _,ilail he subm itred prior to (he issuance of the building permit "nd subject
to the revie" "nd approv,,1 of the Doveloplllent Serviccs Divi,ion,
2, I he 01'1'1 icant 'hall h, re<luired to comply "il h the SEP A ennui,iolls illlposed by lh. Remnn
Sch.",1 d ,,'riel on J""u"ry 2R, 2005 for thi, _,ito <luring site work. :>lillgalion fecs shall be
pay~hlc rrillr 10 lhe issuance of!>uilding permit,_
ORDERED THIS 22'" day of I\larch 2005,
l'RANSI\1ITTED THIS 22"" day of Marcil 2005 to Ihc parties of record'
Nancy Wcil
1055 S Co,,,,,), Way
Renlon, W i\ ~81l55
CII, ill Gasaw~)'
(,rcenC'()",,,"'al Architecl'
I'OHox415R
K"}Ten Kittrick
Devclnpmont Service, Di\',
1055 S (,]'ady Way
Fe,kral W"y, WA ')R()(i:l-4158
Owen Denni"",
AHnJ.
316(kci<ie11t,,1 Ave S. ~uile 32()
Seattle, WA ')810,1
TRANSMITTEI)THIS 22"d day of March 2005 10 I~e followitlg:
l\1a}nr Kathy Kenlk<:r-W heoler
Jay C()' ingt()n, Cil iel Admioislml i,'<: 0 [Iicer
J uli" MedzcgJ~n. Council Lia i",n
Larry Warren. Cily ,\llorn~y
Gregg Zi Illllle]'man, PllPW Adlllll] iSlmlar
Alex Piclsch. )",onoillic De,elopmellt
]cr>n;fcr H<:nnill!;. Development Serviccs
Slacy Tucke,. Ilewlopmcnl Services
Sian Engler, Fire
L~I'I'Y I\1crkling. H\li Iding OftJcial
Planning C""'m;"ion
Transportation DivisIOn
Ulilitie, Divi,ion
Neil W"lIs. DeHlopment SCf\'ic<:s
J"net Conklill, De\'cioplIl<:nl Serviccs
King e"ullty Journal
Pursuant to 'I it Ie I V, Cilapter ~, Se~tion I OO( j of tbe City', Code, n·guc.t for ret'unsider:otion must he fil~d in
writing un or hdurc 5:00 p.m., A,.Til 5, 2005. ,\ny aggrievcd pcrson f~eling that the decision of the Examincr
i, am bigllous ur n~,eJ "0 erroneous pr()Cedurc, err"" "I I"w or fJct, err", in judgment, or the d iscovcr), of new
c\'](loncc whioh ~()ul<1 not DC reas()nably nvaibhk al Ih. prior hcanng may make a wriucn request for a fo> iew
by the Exam i ner willi 111 lourl~en (14) day_' froln lho date of the Examiner's deci,ioll_ This r",!"e,! ,hall scI lilri h
the 'pecilic allihi gui(ies or errOrs <Ii;covered by <ucb arpcliallt, ~nd the Exam inc, Ill"Y. artor re~ iew ()f the
record, take furthcr ac(iOR '" he deems proper.
Ke""y,lalc Uelll~nl'''y School "econmuct;,'n
Filo No.: UJA-05-1I() I, S,\-I L c: I .I_II
Mmch ::. 2005
Pn~e <)
An appenl tl' the City ("'"led "govel'lle,1 by Title IV. CII"pter R, ~cCI")[l II II. which re'Juires that such appeal
be 1,Ied "ilh the Cit: C Ink, aC~(lml"'": illg" rding ree of $75, (1) ""d ",ecllng other 'I'ccificd ''''I'' irements.
Copies oflhi, orJinance ale a\'~ilahle for in-'I'ection m I'mchlllC i" Ih" Finallce ll.pm1ment, ti"llloor "feLly
H"IL An ;Ij'l'~,,1 n",,1 lw f)h,d in "rilinn on 01" ber",'e 5,00 p.m .• April ~,2005.
If th~ ".""nine,"" ilee"I,,"erIL,li"n "r Ilc,';sio" contai", the rcq nirc"'"n! f"r R.,lri,·I;, " Cm'enant'. the
executed C,,~cn"nb "ill be rC'1 uircd prior to "pprm'al h\' ril,' e""n"iI or Ii m,l p,·ocr, .. ing of the file. Y 011
may C"nhlC! !h i" ul'll~~ f"r ;lIf"r",,,!iun IOn r"r",all ;ng ,''',""mmls.
The l\pp~"r",l<'~ of rairne" [)oclri Ile jll o"ides that 110 ," p",le (pT" al" t\nc-oll-un~) communicauon,; "'"y oCcUr
concerning pctld"'g 1"",1 "'~ dc~i;io",. 'I his mean< tilol partie, to" land L"" doc"i,,,, may nul communicnte in
private with ~n~ deci,ion-maker cOllcerning the rrtlpo,~I, fkcision-maker; in the land me pmcc" illcl",k QoTh
the Hcaring Ex",nincr allJ members of Ihe Cily Coullcil
,\11 "omm""i~,,,inn' co"cerning Ihe proposal must be made In publ;c, Tim public c0mnllLlllcali"!I p~nnih ,,11
inl"r"sl~d pani," tel know Ille "<liltenl, "fill. comnll11llcall01l and Mlliid allow Ihem to "I'"nly Teh"t Ihe
cviJ""cu, ,\Ili ,i,,1 a I iPIl "I'lil is ,luClrine would, "'lilt in the "" a IldoTiu" "j' Ih~ r<:'1"c,1 b~ Ihe Court.
Tile nnelTi"c "pplic' nut only to Ih. inili,,1 pllhli~ h~Jr;ng but to oil Retlue,t.; for Rceon,iucr",i()n u, well as
Appeal>!O the Cily Council.
Nt, uth:~
, ,. -:~ .. 3 I I ,-.. ',
I _, __ _ i
Kennydale Elementary School Reconstrucnorl
Neighborhood Detail Map
Augun 4, 2004
A)IB)~l",:_
[' L.l
, ,
GRAPHIC SCALE
( IN FEET )
1 inch _ 200' It
,
-, ,
In ITIIIIII t· -• • • •• • ,
'-II [T-l'lll 11 I I l;;· ·,,0 ~.I. : iillll'''",''''''
I ", 'I' iil III P' !,jlf'l
§ nllilli!ld:ndl;
L---------------------
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03/04/05 FRI 12: OS ~'H 2062672129 AIIBL INC i4J002
Facilities & Operations Center
OFFICE OF THE EXECUnVE DIRECTOR
Telephone: (425)204-4403 P,x: (425) 204.4476
RENTON SCHOOL DISTRICT
MITIGATED ENVIRONMENTAL
DETERMINATION OF NON-SIGNIFICANCE
Description of
Current Proposal:
Proponent:
Location:
Lend Agency:
KENNYbALEELEMENTARYSCHOOL
The Renton School District 13 proposing to <Iemolish all buildings that
comprise the existing Kcnnydal~ Elementary School and to construct 3
new el=entary school on the ~ame 6.73 acre site. The proposed
approximately 61,392 square foot facility is designed to accommodate
approximately ~50 elementary students per year and employ 60 teachmJ,
administrators, and ~uprort staff.
Site access will continue 10 be from i'JE 28th Stred and sepatare accesses
will be provided for the school buses/statT parking area ami the student
urop·off/visitor parking area. Grading and removal of existing lawn and
lan<l<caping will occur in areas pmposed for tho building, access, parking,
playgrounds, and loading, The majority of the existing turf play fields
and some trees along the perimeter ofllie site will be preserved.
Dr. Dolores Gibbons, Superintendent
Renton School District 11403
Kohlwcs Education Center
300 SW 7th Street
Renton WA 98055
The site is located in the Southeast and Southwest Quarters of Section 32,
Township 24 North, Range 5 East, W.M., in the City of Renton, King
County, Washington, and is bounded by 1·405, NE 30th Street,
Kennewick Place NE, and NE 28th Street. King County parccl numbers
are 334210-3310, 334210-]]50, 334210.3355, 334210-3356, 334210·
3357, and 334210·3358. The <ile is addressed as 1700 NE 28th Street.
Renton School District
D.cember 17. 2(){)4
1220 North 4ln Sor,"t, Renton. W .. hi,&,oo 98055
School District
Contact Per.'on:
AH~L J.;L
Mr. Jack Connell, Facilities Projccl Manager, Facilities and Operation"
(425) 204-4475.
The Rcspon"ible Official orthe Renton School District hereby make~ the following Findings and
Conclusions based upon review of the environmental checklist and attachment'!, other
infonnation on file with the Renton School Districl, and the policies, plans, and regulations
designated by the Renton School D1StriCt as a basis for lhe exercise of substantive authority undcr
the Washington State Environmcntal Policy Act (SEPA) pur"uant to thc Revised Code of
Washington RCW 43.21C.060.
Finding. of t'act:
L The R~nt<.ln School District will demolish all existing buildings on the Kennydale
Elementary School sile and constmct a new 61,392 square fool elementary school to
replace the existing schooL The faeilily will accommodate about 650 studL"flts from
kindergarten through fifth grade and employ about 60 kachers, administmtor!!, and support
staff, The new school w,ll be a two-story structure and will include classrooms,
admimstrntive office'!, lunchroom faCIlities, a common area, gymnasium, and other ancillary
racilitics associated with an elementary s~hlJ{)1. Site a~~~~5 will continue to be from l\'E
28th Street and separate aCCeSSes will be provided for the school buseshtaffparking area
and the studcllt llrop-oIDvisitor parking area. Grading ",ill occur in the areas proposed for
lh~ building, acccss, parking, playgrounds, and loading. The majority of the existing turf
play fields and SOme trees along the perimeter of the site will be prcselVed,
2. The proposed use of the site as an clmnentary school is consistent with the City of Renton
Comprehensive Plart designation ofResidcntial Single Family and asso<.-'mtcd R-ll Zouing
classification. Elementary Schools are conditional uses in the R-8 Zone.
3, The SltC is surrounded by public rights·of-way. Adjacent land uses nre residential to the
wuth and <'<1St, commercial, re.,identiai and vacant to the north, and commerCIal and
res)dential to the west across 1-405,
There will be approximately 800 cubic yards of general cut and 7,400 eubie yards of fill
\m the site. Cut will be reused as fill on site as allowed by the qunlity of excavated
material. The Sour~e of imported fill will be a Washington State Department of
Transportation approved borrow sitc. Construction activities may ereal~ a pot~ntinl for
CroSlOu.
5. 97 parking 8paces arc proposed, 4 of which will he h~[ldicap spaces. ·lbere are currently
42 spaces, 2 of which are designated handicap spacc.,.
A traffic analysis condur.tcd by The Transpo Group in Decemher 2004 estimates an
lncr~dSC <.If 210 avu"ge weekday tnp" based on the increase in b'''lding floor area of
2
January 21, 200\
",j003
OJ/04l05 FRI 12:09 FAX 2062fi72129 AItBL INC
14,500 square feel and the ~ .. umptitms >n the Institute of Trnnsportation Engineers
Manual, 7'" Edition.
7. The increas~ in floor area OVer the el<isting condition may remit in an increased need for
public fire protoc!ion services.
8. The site is located in Zone 2 of the City's Aquifer Protection Area, No other sensitive
areas are mapped for the site.
9. The sIte is currently developet! with approl<imately 2.7 acres I;>f impervious surface. The
proposed site plan includes appco.\lIllately 3.92 acres of impervious surface, an inerease
of 1.22 acres.
10, lbc project is located along a geographic divide which separates the property into two
drainHgc basins, both of which ultimately drain to Lake Washington through different
routcs. The western portion of the site, approximately 1.2 ac!es, draim southwest in a
closed pipe syst~m beneath 1-405 toward Lake Washington. The remainder of the site
flows via a closed pipe conveyance system to the northeast where it eventually discharges
10 May Creek.
The City of Renton has "'-~tab1ished Level 2 King County Runoff Time Series (KCRTS)
detention and basIc water quality tre"tITlm! standards for storm water in the May Creek
basin. That portion of the project ill the west basin will require L~vcl I KCRTS detention
and ba.~ic water quality. Dr~in~gc improvements for the project are proposed to be
designed in accordance with the 1998 King County Surface Water Design ManIUlI, as
ndoptcd by the City of Renton.
Areas gcneratiog runoff from the west basin will include bus drop off and staff parking
lot. A combined wet/dry pond is proposed to provide the required water quality and
rllI)off colltroL Runoff from the May Creek basin portion of the site includes n
combination of vehicle travel surface:l (student drop off and visitor parking) and no[]-
vehicular surfaces. Runoff li:om drive areas will be collected and conveyed 10 a
stormfilter vault, which wiU provide the basi~ wate! quality required. Runoff from the
remainder of the site as well as clean runoff discharging from the stonnIIlter vault will be
routed to a below-grade concrete detention vault. ControtJed runoff from the detention
vault will discharge to the e.\isting stonn system in Kennewick Place NE.
11. -Ibc site is currently connected 10 the City of Rentoll public sewe! system and public
water system. There is a 12-inch watLT main located in NE 28'~ Street. A 6-inch main
currently loops through the site and connects with the 12·inch main in Kennewick Place
NE. The existing 6 inch loop through the site will be replaced as part of the project.
There i. an existing 12-inch .anitary sewe! main located in the NE 28'" Street. No off-
site improvements will be required to provide water;md sewer service to the site.
3
January2t.200'
12. SIte soils were tested for lead and arsenic by Morse Environmental, Inc., in October 2004.
The study .,howed that lead and arsenic do not e~ceed published background levels.
D. An EnvlWlilllcntal Site Assessmcnt was comluctcd by Morne Environmental, Inc, in
A\lgnst 2004. Potential sources of environm~ntal health hazards revealed by the study
were PCBs in the ballast for flnOfescent lights and pOSSIbly in the hydraulic lift of the
elevator in the existing structur~. Thc 2003 AHERA Report by Nowicki & Associates,
Inc., identificd materials within the exi:;ting buildings on the sile contRining fonn. of
asbc,tos.
CONCLUSIONS OF THE R~:sPoNSmLE OFFICIAL
The responsible official has dctermined that the proposal does not have a probable significant
~dver.le impact On the environment, and an Environmental Impact Statement (EIS) is not
n:'luinxl under RCW 43.2IC.030(2)(c), only if the following cunditions arc met. This deci~ion
was made after review of a completed envlr<Jrunental ~heckli"t, illId other infonnation on file
with the Renton School Dislrict, and ~xi.til1g regulatIOns. TIlis inlonnation i~ available to thc
public on request. These mitigation measures are required as allthorized unda the Substantive
Authority of SEPA in accordance with the guidelines contained in the Renton School District
Rules and ,hall b~ implemented by the applicant.
,'\1itigation Meuurc.!
The applicant shall:
1. Traffic Impact Mitigation;
The applicant shall provide traffic Impact mihgalion fee~ of $75 per additional trip
generated by the project. The f~e ~hall be calcubted on the increase in floor area over the
lolal of exi~til\g floor area of stru~tures on the site and shall he based on tl,e Institute of
Transportation Engineers Trip Generahon Manual, 7th EdItion.
2. Fire Impact Mitigation:
The applicant shall provide fire impad mitigatiun fees of $0.52 per addihonal square foot
offloor area.
Environmetltaf lIealth lI1itigalitm:
Hydraulic fluid from the elevator, fluorescent light fixtures and asbestos-containing
materials shall be collected and disposed of separate from other demolition debris·and
~onsistenl with eny, Slate and Federal guidehnes and be"t management practiee8.
4. Storm Draim,ge Jlfi,igll/;o1l:
lJrainage improvement;; shall be designed in accurdan~e with the 1998 King Cuunty
Slllf~ce Waler Design Manu~l.
,
J.nuary 21. 2005
03/0V05 FRI 12: 10 FAI 2062672429 AIlBL INC
This MDNS is issued ul]der the Washing/on Administrative Code (WAC) 197-11-340(2); the
lead agency will not act on this proposal for 14 days from the date of issuance. Only written
comments will be accepted and must be submitted by 5:00 p.m. On February II, 2005, to Mr,
Riok Stracke, Executive Director, Facilities and Operations, Renton School District, 1220 North
4th Street, Renton, WA 98055-1 539.
Unless modified by the Renton Sebool District, this determination will become final following
the above comment deadline. There is no agency appeal under Renton School District SEPA
policies.
~6 ~.J:.
ReJponsible Official: eke, Executive Director, Facilities and Operations Date
Lead Agency: Rentol] School District
1220 North 4th Street
Renton, WA980S5-1539
(425) 204-4403
Date of Issue: January 28, 2005
COlIlllll'nt Deadline: February 11, 2005
The issuance of this Determination of Non significance does not constilute projed approval. The
"pplicant must comply with all other applicable requirements befnre receiving construction
permit.'l an<llor approvals.
5
J""uary 21, 2005
CITY OF RENTON
CURRENT PLANNING DIVISION
AFFIDAVIT OF SERVICE BY MAILING
On the 9th day of March, 2005, I deposited in the mails of the United States, a sealed envelope
containing Preliminary Report to the Hearing Examiner documents, This information was sent to;
, ~"J.&MName':i'i(i'+i#dtk , ", , ,
Rick Stracke -Renton School District
Calvin Gasaway
(Sigo""" of S,"d"!'~ ~
STATE OF WASHINGTON
COUNTY OF KING
) SS
)
"f;W;+ "_." eo ;;::;:~L.. ..,Re resentln ' ' , ;;'"":":W,:::,~*"'m '~;" ':' .. ' ,:':," ",;-m
Owner/Applicant
Contact
~~~~"""'"'''' .~~.Ii' KAMet."', f~v .. ~~io;'iQ::.~~~~·., ~'f',,",$' "'/,""", f~/~",O;AA)-1>i,: '~
~ ;" -,-: j , . . . ~ '. PUBLIC. .' ~ 3
"<fI\ .:~~ I certify that I know or have satisfactory evidence that Stacy Tucker \-:'1 ·· ... .I!f;.'-!'!':~:.,·~0_..!
signed this instrument and acknowledged it to be hislherltheir free and voluntai'!.~.eW\l..EI'>tl~ and
purposes mentioned In the instrument. """,,,,,,,-~~
Dated: 3/01}Jo ","-
Project Name: Kennydale Elementary Reconstruction
Project Number; LUAOS-004, CU-H, SA·H
CITY OF RENTON
HEARING EXAMINER
PUBLIC HEARING
March 15, 2005
AGENDA
COMMENCING AT 9:00 AM,
COUNCIL CHAMBERS, 7TH FLOOR, RENTON CITY HALL
The application(s) listed are in order of application number only and not necessanly the order in which they will be
heard. Items will be called for hearing at the discretion of the Hearing Examiner.
PROJECT NAME: Elmhurst Preliminary Plat
PROJECT NUMBER: LUA-04·162, PP, ECF
PROJECT DESCRIPTION: The applicant is requsstl1l9 Preliminary Plat approval for a 64-lot
subdivision of a multiple parcel, 9.6 acre site. Two tracts for open space and storm drainage are
Included. The site is zoned Residential -10 dulac and is to abide by a Development Agreement. The
lois range in size from 3,801 sq. ft. 10 5,870 sq. It. and intended lor detached units. All e)(isting
buildings would be demolished. Access is proposed via Bremerton Ave. NE to new internal public
streets and private access easements. One non-regulated Category 3 wetland would be lilled.
Maplewood Creek crosses the southwestern portion of the pial.
PROJECT NAME: Kennydale Elementary Reconstruction
PROJECT NUMBER: LUA-05-004, CU-H, SA-H
PROJECT DESCRIPTION: The applicant is requesting Hearing E)(aminer Conditional Use permit
and Site Plan approval to construct a two· story structure appro)(imately 60,400 sq. It. to replace the
existing elementary school building, which is to be demOlished. The site is 6.73 acres located at 1700
NE 28th Street. The project area will remain primarily in the southern two-thirds 01 the site With
parking and vehicular access reconfiguration. Parking Modilication is required. The School District is
lead agency for the Environmental (SEPA) Review. The applicant is requesllng a conditional use
permit. as required by code, to Increasing the gross floor area mOle than 10 %. The subject property
is located within the Residential-S (R-S) zoning designation, Public Land (P) Overlay District.
HEX Agonda 3·15·05 doc
PUBLIC
HEARING
City of Renton
Department of Planning I Building I Public Works
PRELIMINARY REPORT TO THE HEARING EXAMINER
A. SUMMARY AND PURPOSE OF REQUEST:
Public Hearing Date:
PfOjecl Name:
Owner/Applicant:
Contact:
File Numb6r:
March 15, 2005
Kennydale Elementary School Reconstruction
Renton School District
1220 North 4th Street
Renton, WA98055
Caivln Gasaway
Greene-Gasaway Architects
PO Box4158
Federal Way, WA 98063-4158
LUA·05·004, SA-H. CU-H Planner: NancyWeil
ProjBct Description: The applicant is requesting Hearing Examiner Conditional Use permit and Site Plan
approval to construct a two-story stnJcture approximately 66,000 sq. ft. to replace
the existing elementary school building, which is to be demolished. The site is 6.73
acres located at 1700 NE 28th Street The project area will remain primanly in the
southam two-thirds of the site with parking and vehicular access reconfiguration.
Parking Modification is required. The School Dlstnct IS lead agency for the
Environmental (SEPAl Review. The applicant is requesting a conditional use permit,
as required by code, to increasing the gross floor area more than 10 %. The subject
property is located within the Residentlal-8 (R-8) zoning designation. Public Land (P)
Overlay District.
Project LocaUon: 1700 NE 28'" Street
I
B. EXHIBITS
The following exhibits are entered into the record:
Exhibit NO.1: Yellow flie containing: application, proof of posting and publication, environmental
Exhibit No 2:
Exhibit No 3'
Exhibit No.4:
Exhibit No. 0
Exhibit No. 6,
Exhibit No. " Exhibit No " Exhibit No. e
Exhibit No. W
Exhibit No. 11 :
Exhibit No. 12:
Exhibit No. B
Exhibit No. "
review and other documentation pertinent to thiS request.
Neighborhood Map (dated 8I2J04).
Sheet AI .01 • Site Plan (dated Dec. 2004).
Sheet Cl.00, Demolition Plan (dated Dec. 2004).
Sheet C3.00, Grading I> Drainage Plan (dated Dec. 2004).
Sheet C4.00, Water & Sewer Plan (dated Dec. 2004)
Sheet 11.2.01. Overall First Floor Plan (dated Dec. 2004).
Sheet 11.2.02, Overall Second Floor Plan (dated Dec. 2004).
Sheet A5.01. Exterior Elevations (dated Dec. 2004)
Sheet L 1.00, Tree Cutting & Land Clearing Plan (dated Dec. 2004).
Sheet L 1 01, Landscape Plan (dated Dec. 2004).
Sheet L 1.02, Landscape Plan (dated Dec. 2004).
Zoning Map C4-West (dated Dec. 28, 2004)
Renton School District Determination of Non-Significance-Mitigated Measures
C. GENERAL INFORMA TlON:
,
,
3.
Owner of Record:
Zoning Designation:
Comprehensive Plan
Land Use DeSignation:
EXisting Site Use:
5. Neighborhood Ch3raeleristics
6 , ,
North:
East:
South:
West:
Access:
Site Arna:
Praieef Dafa:
Existing BUilding Arna:
New Buildmg Aree:
Total Building Art"a:
hoxrpW5-004.doc
Renton School District
1220 North 4'" Strest
Renton. WA 98055
Residential-8 Public (R·8P)
Residential Single Family
Elementary SchOOl
Commercial Neighborhood (CN)
Resldential-8 (R·8)
Residential-8 {R·8}
1-405, Residential-8 {R·8} I> Commercial Neighborhood (eN)
NE 28"' Street
293,158 (6.73 acres)
Area
53.685-sq. It.
65,968-sq. ft.
65.968·sq. ft.
comments
To be demolished
N>A
'"
Diy Dr Ronlon PIBIPW Department
KEIIIIYDALE ELEMEIITARY SCHOOL
felimin"1)' Report to the Hearing Exammer
LUA-05-004_ SA_H, CU_H
PU!lLIC Hf:ARING DATE MARCH 1,5. 2005 Pago3Df12
D_ HISTORICAUBACKGROUND;
Action
Zoning
Land Use File No,
<lA
Comprehensive Plan
Original City of Renton Pial
Sile Plan Approval
<lA
<lA
LUA-OO-084
NIA
LUA-04-101
Ordinance No.
"" 4498
NIA
NIA
5109
5119
Dale
06/07/93
02/20/95
1901
07/19/00
12/13104
10/20/04
Sireet Vacation
Zoning
E. APPLICABLE SECTIONS OF THE DEVELOPMENT REGULA TlONS (RMC TITLE IV):
1. Chapter 2 Land Use Districts
Section 4-2-020' Purpose and Inlenl of Zoning DistriCts
Secliof14-2-070. Zoning Use Table
Sediof14-2-120,B, Commercial Development Standards
2. Chapter 3 Environmental Regulations and Special Districts
Section 4-3-100: Urban Center DeSign Ove~ay Regulatoons
3. Chapter 4 Property Development Standards
Section 4-4-030: Development Guidelines and Regulations -General
Sechon 4-4-070: Landscaping Regulations
Section 4-4-080: Parking. Loading. and Driveway Regulations
Section 4-4-090: Refuse and Recyclables Standsrds
4. Chapter 6 Streets and Utility Standards
5. Chapter 9 Procedures and Review Criteria
Sectiof14-9-030: Conditionat Use Permits
Sedion 4-9-200: Site Plan Review
6_ Chapter 11 Definitions
F. APPLICABLE SECTIONS OF THE COMPREHENSIVE PLAN:
1. Land Use Element
2. Communlty Development
G. DEPARTMENT ANAL YSIS:
1, PROJECT DESCRIPTION/BACKGROUND
The applicant. Renton School District. is requesting a hearing examiner conditional use permit and
site plan approval. The School District processed the application for env,ronmental review. wtlich was
issued a Determination of Non-Significance Mitigsted (DNS-M). The 6.73-acre 511e is the current
localion of Kennydale Elementary SChool. which is proposed to be removed and reconstructed on the
same site. The site is located north of NE 28'" Street. east o~ Interstale 405 and southwest of
Kennewick Place NE.
The proposed two-story school will be lacatsd in the sams general area as lhe existing building. in
the soulhern two-thirds of the site woth the athletic field remaining In the no~hern ares. The footprint
of the new structure is proposed to be approximstely 12.000 square feet larger with 97 parking
spaces, Access to the site will continue to be from NE 28th Street
The new building Will contain 22 classrooms. library. resource areas. offices. sthletic area, commons
and kitchen. New utilities will be instslled snd stormwater detention and water quality faCilities will are
constructed. A 12-fool wide right of way extending from NE 30th Street through ll1e center of the slle
h."'plO5-0Q4 ooe
was vacated by the City Council on December 13, 2004. The proposal includes new outdoor
recreallon facilities and landscaping. Approximalely 14 trees of vanous types are propossd to be
removed.
The site IS generally flat wrth subsurface so<ls as Silty sand with gravel in a dense to very dense,
mOist to wet condition interpreted as till. The Geotechnical Report was prepared by Associate<:! Earth
SCiences, Inc. October 7. 2003 with a supplemental report prepared September 7. 2004, which
determine<:! from their borings the soil conditions of the site to be suitabte support strata.
The slle IS located in the R-e (Residential Single Fam<ly, eight dwelling units per acre) zoning
designation which permits public or private K-12 education institutions and with approval of a
conditional use permit allows the new construction to increase the existing gross floor area more than
10 percent On October 20, 2004, the City Council adopted an ordinance for this site overlay
designation of Public Use (P) suffix. The "P" suffix requires owner particular '"Notice'" requirements ~
proposing change of use. tenant or ownership This proposal IS for the reconstruction of the existing
USe only.
2. ENVIRONMENTAL REVIEW
The Renton School District was lead agency for the Environmental Review for this project Pursuant to the
City of Renton's Environmental Ordinance and SEPA (RCW 43.21C. 1971 as amended), on January 28,
2005 the Responsible Official issued a Determination of Non·Significance, MItigated for the project. The
DNS·M included four miligation measures. A 14-day appeal period commenced on January 28. 2005 and
ended on February 11, 2005. No appeals of Ille threshold determination were filed.
3. ERG MITIGATION MEASURES
Based on an analYSIS of probable impacts from the proposed projee!. the following mitigation meaSUreS
were ISSUe<:! for the Determination of Non·Significance -Mitigated.
1. Traffic Impact Mitigation; The applicant shall provide treffic impact mitigation fees of $75 per
additional trip genereted by the project. The fee shall be calculated on the increase in floor area
over the fatal of existing floor area of slructures on the site and shall be based on fhe Institute of
Transportation Engineers Trip Generation Manual, f1' Edition.
2. Fire Impact Mitigation: The applicant shall provide fire impact mitigation fees of $0. 52 per addif,onal
square foot of floor area.
3. Environmental Health Mitigation. Hydraulic fluid from the elevator. fluorescent light fixtures and
asbestos-contalmng matarlals shall be col/ected and disposed of separete from other demolition
debns end consistent With Cify, State and Federal guidelines and best management practices.
4. storm Drainage Mitigallon: Dramage improvemants shell be designed in accordance with the 1998
King County Surface Water DeSign Manual.
4. STAFF REVIEW COMMENTS
Representatives from various city departments have reViewed the appl;catlon materials to Idenjjfy and
address site plan issues from the proposed development. These comments are contained In the off;cial
file, and the essence of the comments has been incorporated Into the appropriate sections of this report
and the Departmental Recommendation at the end of the report.
5. CONSISTENCY WITH CONDITIONAL USE CRITERIA:
h.'rpI05-004.doc
Section 4-9-030.G lists 11 criteria thet the Hearing Examinsr is aske<:! to conSider, along with all
other relevant information, in making a decision on a Conditional Use application. These include
the following:
(1) CONSISTENCY WITH THE COMPREHENSIVE PLAN, ZONING CODE & OTHER
ORDINANCES.
The proposed use shall b<'i compatible with the general pur{XJse, goals, objectives and
standard of the Comprehensive Plan, the Zoning Ordinance and ,my other plan, program,
map or ordinance of the City of Renton.
The subject site is designated Residential Single Family (RSF) on the City's
Comprahensive Plan Land Usa Map.
(a) Comprehensive Plan Land Use Element
Policy LU·96. Schools in rasldentiBI neighborhoods should consider mitigating adverse
impacts to the surrounding area in site planning and operations.
The project is required to pay mitigation fess for increase In traffic however the traffic flow
will remain off of NE 28'" Street. Public streets and Interstate 405 encompass the site.
Policy LU·100. Elementary schools should be located near a collector at1erial street.
The exisllng school site is not located near a collector arterial but is adjacent to two minor
arterialS, Kennewick Place NE and NE 30'" Street.
Objective CD-G. Architecture should be distinctive and contribute to the community
aesthetic
The design and site placement of the new elementary school should enhance the site
without adverse impacts. The two-story structure is proposed with a sloped roof and
architectural features to blend into the residential area.
(b) Zoning Gode
ThB existing Site IS tocate{! Within the Residential-B (R·8) zoning designation. In December
of 2004, the City CounCil approved the Public (P) zoning overlay for the site. The eXisting
public school use is an outright permitted use in the R-8 (P) zone. The code /equires a
Hearing Examiner conditional use pelmit fOi changes in facilities eXGeeding len percent
(10%) of gross fioor area. The square footage of the existing building footprint is 33,985;
the proposed new structure is 42,232 square feet, an approximate increase of25%.
(c) Development Standards
The proposed new two-story structure that is to replace the existing buildings has been
deSigned to meet \he development standards established in the R-8 zone. The proposal,
even With the increase in size triggering the Hearing Examiner conditional use permit,
complies with the lot coverage of 35% and setback requirements of R·S. The "Public
Suffix" (P) allows increase in the maximum building height and number of stories. The
slructure IS proposed at two-stories with maximum height of approximately 43 feet.
(2) COMMUNITY NEED;
Thera shall be a community need for the proposed use at the proposed Ioeetion. In the
determination of community need, the Hearing Examiner shall conSider the following
factors, among all other relevant information:
(a) The proposad location shall not re.sull in ellher the detrimental over concentration of
a pariicular use within the Clly or within the immediate area of the proposed use.
The Kennydale Elementary School currently exists. generally located in the southwest
corner of the site. The northern portion of the site is open athletic field and the parking
area is off of NE 28'" Street. All of the existing structures are to be removed with the
approval of the new school. The parking area and athletic field witt generally remain In the
same locations. The proposal does increase the lot coverage from 11.8% to 14.6%. With
the approval of this requested conditional use permit the new elementary school will be
permitted to increase the footprint approximately 8.247 square feet. The gross square
footage increase will be approximately 12,000 square feet. However, as the proposal IS
o.x",105-004.00<
the reconstruction of the etementary school, the number or concentration of schools in the
area does not increase,
(b) That the proposed location is suited forthe proposed use.
Both public and prlvale schools, K,12 grades, existing are an outright permitted use in the
R-8 zone. An increase in the gross floor area 01 greater than 10% requires the Hearing
Examiner conditional use permit. Therefore, the subject request is for additional square
footage of floor area a new structure for an existing land use.
(3) EFFECT ON ADJACENT PROPERTIES:
The proposed use at the proposed location ShOll! not result in substantial or undue
adverse effects on adjacent property-The following site requirements shall be required:
(a) Lot Coverage: Lot coverage shall conform to the reqUirements or zone in which the
proposed use Is to be located.
The subject site is located within the Residential Single Family ~ 8 dwelling units per acre.
For tots 5,000 square feet or greater the maximum building coverage is 35% or 2,500
square feet, whichever is greater. The propllsed lot coverage of this project is 14.6%.
(b) Yards: Yards shall conform 10 the requirements of the zone in which the proposed
use is to be located. Additions to the structure shall not be allowed in any required yard.
The subject site is located within the ReSidential Single Family~ 8 dwelling units per acre.
The site is 8.73 acres and the proposal well exceeds the minimum yard setbacks of 15-
fool front, 15-loot side along a street, 5-loot interior side and 20-loot rear. A la-foot
landscaped setback is required along freeway frontage.
(c) Height: Burlding and structure heights shall conform to the requirements of the
zone in which the proposerJ use is to be located. Spires, bell towers, publiC utility
antennas or similar structure may exceed the height requirement upon approval of a
varian~e Building heights should be related to surrounrJing used in order to allow optimal
sunlight and ventilation, and minimal obstruction of views from adjacent structures.
In the R-8 zoning designation, the maximum building height and number of stories, is 2
stones and 30 feel except in the "Public" Suffix (P) designation, properties are allowed
height bonus. Publicly owned structures shalt be permitted an additional 15 feet in height
if "pitched rools" are used for at least 60% or mOre of the roof structure, The proposed
structure is two-stories With a pitched rool at vaned heights but the maximum proposed is
at 43'-2-,
(4) COMPATIBILITY:
It is an existing school use and is not proposed to change, As part of the application, the
removal 01 the existing structures and the construction of the new school building is not
expected to cause adverse impact.
(5) PARKING:
Parking under the building struclure should be encouraged. Lot coverage may be
increased to as much as seventy-five percenl (75%) of the 101 coverage reqUirement of
the lone, in which tha proposed use is loceted, if all parking is provided underground Or
within the structura,
A total 01 97 spaces would be provided. Two parking areas would be located in the
southwest portion of the site as surface parking, 24 spaces plus two ADA spaces are
locatmt in the drop off loop and the remaining 69 spaces plus two ADA spaces are
located to the west of the drop off area and school building, adjacent to 1-405
Underground or structure parking is not a viable option for this public use, thus surface
parking is suffiCient and Will be require meet requirements lor landscaping
h""'pIOS·004 doc
(6) TRAFFIC:
Traffic and circulation patterns of vehicles and pedestrians relating to the proposed use
and surrounding area shall be reviewed for potential effacts on, and to ensure safe
nrovement In the surrounding area.
While the structure size and number of parking spaces will increase, the use of the site
will remain the same as an elementary school. The proposed access and traffic pattems
will remain somewhat the same but Improved traffiC flow with the one-way entrance and
exit circulaHon pattern. Pedestrian crosswalks will be relocated to match the new sidewalk
and entrance locations. both on-site and off-site {NE 28" Streetl. As NE 28'" Street is a
dead end street off of Kennewick Ptace NE, il functions as access to the setlool and the
neighborhood to the south.
(7) NOISE, GLARE:
Potential noise, light and glare impacts shall be O'valuated based on the iocation o( the
proposad US6I on the lot and the location of on-site parking areas, outdoor recreational
areas and refuse storage areaS.
The request for a cond,tional use permit is due to the increased gross floor area of
greater than 10%. Please see discussion regarding noise and gtare within the site plan
review section of this report.
(8) LANDSCAPING:
Landscaping shall be provided in all areas not occupied by building or paving The
Hearing Examiner may require additional landscaping to buffer adjacent properties (rom
potentially adverse effects of the proposed use.
The request for a conditional use permit is due to th61 increased gross fioor area of
greater than 10%. Ptease see discussion regarding tandscaping within the site plan
review section of this report.
(g) ACCESSORY USES:
Accessory uses to conditional uses such as day schools, auditoriums used for social and
sport actiVities. heallh centers. convents, preschool facilities. convalescent homes and
others of a similer nature shall be considered to be s6lparate uses and shal! be subject 10
thO' provisions of the use dislriet in which they are located
There are no accessory uses included With the proposal.
(10) CONVERSION:
No 6Ixisting building or structure shall be converted to a conditional use unless such
buiiding or structure complies, or is brought into compliance. wl!h the provisions of thiS
Chapter.
AU existing structures ale to be removed as part 01 the apptication.
(11) PUBLIC IMPROVEMENTS'
The proposed use and location shall be edequately selVSd by and not impos61 an undue
burden on any public improvements, facilitiO's, utilities. end sO'rvic6ls. Approval of a
conditional use permit may be conditional upon the provision and/or gUarantes by the
applicant of necessary public improvements, lacilifias. utilities, and/or s6lrvicss.
With the construction 01 the new school. improvements necessary for ulLlllles, street and
sidewalks, stormwater facilities and tandscaping will be required Pte~se see discussion
regarding pubtic improvements within the site ptan review section of this report.
6. CONSISTENCY WITH SITE PLAN APPROVAL CRITERIA
As per RMC 4-9-200.E. ''The Reviewing Official shall review and act upon site plans based upon
comprehensive planning considerations and the following criteria. These criteria are an objective of good
site plans to be aimed for in development within the City 01 Renton. However. strict compliance with any
one or more particular criterion may nat be necessary ar reasonable. These criteria also provide a frame
of reference for the applicant in developing a site, but are not intended to be Inllexlble standards Or to
discourage creativity and innovatian The site plan review criteria include. but are not limited to. the
follOWing"':
(A) CONFORMANCE WITH THE COMPREHENSIVE PLAN, ITS ELEMENTS & POLICIES
The ComprehenSive Plan Land Use Map designallon for the project praperty is Residential Single
Family (SFR). The intent of the lands in Single Family deSignation is quality residential detached
development organized inta neighbarhaods at urban densilies. The designation is infended to
accommodafe uses Ihal are compatible with and supporl the residential environment.
The follawing ComprehenSive Plan poliCies are applicable ta the propasal.
Objective LU-R. Locate and plan for public facildies m ways thai benefit a broad range of
potential publiC usas.
The proposal is to replace the current structures With new building to provide additional square
footage and updated ladhty to meet growing educational need 01 the community.
Policy LU_73. Primary vehicular accaSS 10 siles should be from principal or minor arlerial slreets.
Access to and from the site. ather than emergency access. IS 110m NE 28'h Street
Policy LU-74. In/emal site circulation should be primarily pedestrian-oriented.
The schOOl is accessible to neighborhood children who wish to walk to school by sale, direct
pedestrian crossing pravided On site pedestrian crossing are also clearing marked lrom the
street and parking lots to the building.
Objective LU-V. Assure adequate land and infraslruclure al appropriate locations for
development and expansion of facilHies to sa",a tha educal,onal needs of area residenls and
protect adjacent uses from impacts ofthase more intensive uses.
The site Will stili have potential room for expansion as the future need arises.
Policy LU_101. Safe pedestrian access 10 schools should be promoled (e.g. through pedestrian
linkages. safely features) through the design on new SUbdivisions and roadway improvements.
As discussed. pedestrian access bath an and off site is provided lor adequate and sale linkage 01
the facility ta the community.
(S) CONFORMANCE WITH LAND USE REGULATIONS
hexrp!(J5-004.doc
The subject site is zoned Residential Single Family _ 8 dwelling units per acre and the "PUblic
Suffix·. R-e (P). Schoals. grade K-12, both publiC and private are permitted in the R-8 (P) zone
Development Standards
The subject site IS reqUired ta comply with the R·e (P) develapment standards where applicable.
Lot Coverage _ The lot caverage to include foatprint lor the building and any covered structure is
proposed to be 14 6% 01 the site lor the new school (42,232 sq ft footprint 1293.159 area = 0.146).
The existing schaol building has lot coverage of 11.8%. Thus the new propasal is an increase of
lot coverage 01 2.8%.
Satbacks / Landscapmg -The subject Site is located within the Residential Single Family _ 8
dwellJng Units per acre. The site is 6.73 acres and the proposal well exceeds the mJnlmUm yard
setbacks of 15-loat lront, 15-foot side alang a street. 5-loot intenor Side and 20-loot rear. A 10-
foot landscaped setback is required along Ireeway frontage
The proposed structure is sited 41 feet from the closest poinl to Kennewick Place NE, 274'-6"
from Ihe north property line of NE 30th Street, 132'-5" from the west property line abutting
Interslate 405 and 124 feet from Ihe structure to NE 28th Street. The parking areas and access
are located on the southern end of the site, outside 01 the front yard along NE 30".
The tree-<;:Iearing plan indicates 14 trees to be removed within Ihe area of construction. The
exisling Irees, shrubs and fencing along the western boundary abutting 1-405 and the northern end
along NE 30th Street and Kennewick Place NE are to remain. The conceptual landscape plan
proposes minimum 5-foot planting area along NE 28"' Street containing boxwood and holly With 8
Tulip Trees and sod lawn. The main surface parking area contains minimum 5_loot wide ptanting
strips throughout the lot containing maple and sweet gum troos with sod "wn. Proposed In the
drop-off area are a variety of trees, shrubs and lawn as well as fill cells with topSOil and sod as the
drive entrance to the lot. The proposed landscape ptan qUite adequately satisfies the tandscape
requirements. tn addition, fa~ade plantings consisting of various shrubs. flowering plants and
groundcover are proposed along the south, west and north elevations of the new structure.
Building Height -In the R-e zoning designation, Ihe maximum bUilding height and number of
stories, is two stones and 30 feet except in the "PubliC· Suffix {P} designation, properties are
allowed height bonus. Publicly owned structures shall be permitted an additional 15 feet in height
if "pitched roofs" are used for at least 60% or more of the roof structure. The proposed structure is
two-stories with a pitched roof at varied heights but the maximum proposed is at 43'-2".
The applicant has provided a varied roofline of Pitched roofs to incorporate translucent panel
clerestory and translucent panel skylights. The roomne facing the residential areaS is the slope
slide thus softening the structures appears of height.
Parking, Loading, and Dnveway Regulations -Parking required for elementary school use is 1 per
employee. The proposed parking off of NE 28'" Street will be accessed by two one·way entrances,
allOWing traffic to fiow for the parent and bus drop-off around to the parking areas. The traffic flow
continues \0 the west to two exit only back onlo NE 28th Street. Fire Lanes are designated on the
plans and \0 be marked no parking. Off the north end of the main parking area is the loading area,
which is restricted by a 24·loot wide traffic gate.
The access drives are 20 feet in width with 10-loot wide drop-off lanes. The drive aisles within the
parking areas are 24 feet wide for 90 degree parking. The total number of spaces proposed is 97,
with 4 ADA spaces. The site currently has 42 spaces. Pedestrian crosswalks are provided from
both parking areas to the building and the existing crosswalk on NE 2eth Street will be relocated to
match up with the new on-site sidewalk. The proposed parking, driveway and loading plan
appears to comply with development regulations.
(C) MITIGATION OF IMPACTS TO SURROUNDtNG PROPERTtES AND USE
hexfl't05-(l04.doc
The subject site is currently the Kennydale Etementary Schoot, the proposal IS to demolish the
existing structures and reconstruct a new building generally the same location on the site. The
proposed structure IS approximately 25% larger with additional parking area. However the use will
not change. The increased size of Ihe building and parking area IS not antiCipated to cause any
adverse impact to the surrounding area. The parking area will remain in the southwest portion of
the site. mainly abutting Interstate 405.
The building design will be consolidated as one L-shape bUilding remaining as the current building
at two-stories and will be constructed of brick. The existing open athletic field on the northern
portion of the site IS not to be impacted by construction. New recreational facilities will be
constructed and will be open to the public. Staff anticipates the project to add value to the site and
further enhance the community.
The proposed date for demotltion and construction of new school is to begin on June 20. 2005.
Conslruction activities would result in some noise, dust and traffic impacts on surrounding
properties. The applicant has submitted a Construction Mitigation Ptan outlining mitigation
measures to be employed for minimizing dust. noise and Irafflc impacts dUrIflg wnstructJOn.
Expected completion of Site is August 14, 2006
Potential short-term noise and traffic impacts would result from the initial construction of the
project Existing code provisions that limit construction work hours, and the applicant's
construction mitigation plan, which indicates proposed work hours from 7:00 am to 6:00 pm,
Monday through Saturday, would mitigate these impacts.
The applicant shall be required to submit a lighting illumination plan demonstrating adequate
lighting IS prOVided for the parking area and the building, The plan shall also demonstrate that the
proposed parking/security lighting will not spill into the public street or neighboring propert.es. The
plan shall be submitted prior to the issuance of the building permit and subject to the review and
approval of the Development Services DIVision.
(D) MITIGATION OF IMPACTS OF THE PROPOSED SITE PLAN TO THE SITE
The scale, height and bulk of the proposed building are appropriate for the site and would be
architecturally compatible with the existing neighborhood. The existing school is two-story flat roof
with several building on the 6.73 acre, The proposal is to remove all existing structures and
reconstruct the school s(lli at 2-stories but one L -shaped brick structure with pitched roofline.
The parking areas are designed for traffic to fiow through the site one-way to and from NE 28'"
Street Proposed landscaping for the parking areas and building are mi>dure of varieties to proVide
height, texture, color and screening of the site.
Potential erosion impacts that could occur dUring project construction would be adequately
mitigated by City Code requirements for approval of a Temporary ErOSion and Sedimentation
Control Plan (TESCP) pursuant to the King County Surface Water Design Manual (KCSWDM)
and a Construction Miligation Plan prior to issuance of Construction Permits.
(E) CONSERVATION OF AREA-WIDE PROPERTY VALUES
The proposed reconstruction of the Kennydale Elementary School is not only necessity from a
public educational viewpoint but new larger and updated facility will be an enhancement for the
neighborhood and community The site will also continue to provide recreational facilities for the
public use.
(F) SAFETY AND EFFICIENCY OF VEHICLE AND PEDESTRIAN CIRCULATION
hO"Pto5-004 doc
A Traffic Impact Analysis was submitled by the applicant as prepared by The Transpo Group"
dated September 17, 2004. The report based the trip analysis an rates published by the Institute
of Transportation Engineers (ITE) for the land use # 520, Elementary School, Analysis was
generated based on bath square footage and number of students. The study results estimated
Increase of 77 to 82 trips in the AM peak hour and 51 to 55 in the PM peak hour, The Rentan
School District placed a mitigation meaSure on the project requiring a Transportation M'tigation
Fee. The Transportation Mitigation Fee is based on a rate of $75,00 per new average daily trip
generated by the project. Credit for existing trips generated by the former uses on the site would
be applied.
The Renton School District provides school bus transportation and the proposed site plan shows
adequate area for the school bus access off NE 28'h Street and a bus drop-off/pick-up lane along
the southwest fa~ade,
Vehides will enter and exit the parking areas via two separate one-way driveways from NE 28th
Street. Pedestrian crossings are wide pavers from each parking area to the Sidewalk leading to
the building entrances. As discussed above, off-site pedestrian crossing is being relocated on NE
28'h Street to connect with new on-site sidewalks,
Construction truck hauling hours are limited to between 6:30 a m. to 3'30 p.m under the
Development Guidelines Ordinance in order to avoid conflicts with peak hour traff,e. The Trafll~
Planning Section will review construction-related impacts prior to Issuing final construction
permits,
,
(G) PROVISION OF ADEQUATE LIGHT AND AIR
The mass of the structure in relationship to the size of the site IS adequately in balance to prevent
obstruction to light or air. The two-story building has incorporated Into Its design skylights and roof
translucent panels as well as large window panels on the majority of Its evaluations_ The L-shape
of the building helps reduce its appears of mass while adding architectural interest and function.
Exterior onsile lighting, including security lighting ,5 regulated by code. Compliance with tIlis code
(RMC 4-4-075) ensures that all building lights are directed onto the building or the ground and
cannot trespass beyond the property lines. To ensure adequate light is provided on site for safety
and security as well as ~o spill over lighting to adlacent neighborhoods occurs, staff recommends
the following, The applicant shall be required to submit a lighting Illumination plan demonslraling
adequate lighting is provided for the parking area and the building, The plan shall also
demonstrale that the proposed parking/security lighting will nol spill inlo the public street or
neighboring properties. The plan shall be submitted prior to the issuance of the building permit
and subject to Ihe review and approval of Ihe Developmenl Services DIVision.
(H) MITIGATION OF NOISE, ODORS AND OTHER HARMFUL OR UNHEALTHY CONDITIONS
It is anticipated that the most sig~ifica~t nOise, odor and other potentially harmful impacls would
occur dUring the demotion end construction phase of the project The applicant has submitted a
ConslruC!lon Mitigation Plan thet prOVides measures to reduce construction impacts such as
noise, control of dust. traffic controls, elc.
The use is not changing therefore would not generate any harmful or unhealthy conditions. There
would be noise impacts of increased traffiC and actiVity Ihat are normally associated with a
educatiomll use. The applicant has indicated that the trash collection and recycling areas will be
contained within an enclosure within the restricted loeding area.
(I) AVAILABILITY OF PUBLIC SERVICES AND FACILITIES TO ACCOMMODATE THE
PROPOSED USE
Fire Departme~t, Police and Parks steff have Indicated existing faollllle$ are adequate to
accommodate the subject proposal, subject to the applicant's payment of the necessary impact
fees. As Imposed through Ihe Renton School Dislrict environmental SEPA review, the applicant
will be required to pay Fire Miligetion fee prior to the issuance of building permits.
There are water and sewer mains located in NE 28'h Street. water and stormwater faCilities are
located in Kennewick Place NE, There is an existing 6" watermai~ o~ site to be relocated due to
location of slructure. Water service and other utililies are avsilable and would be extended or
improved as necessary to the building by the applicant as required by City code,
(J) PREVENTION OF NEIGHBORHOOD DETERIORATION AND BLIGHT
The proposal is the reconstruction of Kennydale Elementsry School All the existing structures are
to be removed, and the site will be improved with a new 65,968 square foot two·story bUilding
constructed of brick wLth aluminum windows Site improvements will include new utilLties,
stormwater facilities, parking and pedestrian access, landscaping as well as new outdoor
recreation facilities. The expanded and enhanced use of sile as sn educational and recreational
facility will cerlainly deter blight.
H. RECOMMENDATION:
Staff recommends approval of the Kennydale Elementary School Reconstruction Site Plan and
Conditional Use Permit, Project File No. LUA.05.004, SA.H, CU·H subject to the following conditions.
1. The applicant shall be required to submit a lighting Illumination plan demonstrating adequate lighting is
prOVided for the parking area and the building. The plan shall also demonstrate that the proposed
parking/security lighling witt not spill into the public slreet or neighboring properties. The pla~ shall be
submitted prior to the issuance of the building permit and subject to the review and approval of the
Development Services Division,
hexrpt05--D04 d<>c
2. The applicant shall be required to comply with the SEPA conditions imposed by the Renton SChool
District on January 28. 2005 for this site during site work. Mitigation fees shall be payable prior to the
issuanG!! of building permits.
EXPIRATION PERIODS:
Site Plan Approvals (SA): Two (2) years from the final approval (signature) date.
Conditional Use Permits: Two (2) years from the final approval date.
ne"pI05-004 doc
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PIBIPW~"'~ -32 T24N R5E W
10,
OV04/05 FRI lZ,08 FAX 2062£72429 AIIBL I~C ~002
Facilities & Operations Center
UFFICE OF THE EXECUTIVE DIRECTOR
Telephone: (425)204-4403 Fax: (425) 204-4476
RENTON SCHOOL DISTRICT
MITIGATED ENVIRONMENTAL
DETERMINATION OF NON-SIGNIFICANCE
Description of
Current Propo~al:
ProP(locnt;
Localion:
Lead Agenty:
KENNY DALE ELEMENTARY SCHOOL
The Renton School Dislrict IS prupusing to delUOlisll all buildings that
compris<' the eXlsting Kennyda!e Elementary School and to construct a
new eltmenlary scht,ol on the same 6.73 acre site. The proposed
approximately 61,392 squarc jout facility is deslgned to accommodate
approximately 650 elemenmry students per year and employ 60 teachers,
administrators, and suppmt staff.
Site access will wntinue to he from NE 28th Street and separate accesses
will be provided for the school buses/staff parking area and the student
drup-oIDvisitor parking area. Grading and removal of e:";sting lawn and
landscaping will occur in ar~as proposed for the building, a=5, parking,
playground" aM loading. The maj()rity of the existillg turf play fields
and some trees along the perimeter of the site will be preserved.
Dr. Dolores Gibbons, Superilltendent
Renton School District 11403
Kohlwes Education Center
300 SW 7th Street
Rent{JnWA98055
The site is located in the Southeast and S()uthwest Quarters ofScction 32,
Towll.'lhip 24 North, Range 5 East, W . .Yl., ill the City of Renton, King
COUllty, Washington, and is bounded by 1-405, NE 30th Street,
Kennewick Place NE, and NE 28th Street. King County parcel numbers
are 334210-3310, 334210-3350, 334210-3355, 334210-3356, 334210-
3357, and 334210-3358, The site is addres,ed HS 1700 NE 28th Street.
Renton School District
December 17, 20{)4
1220 Noeth 4th Stroot, Ron!on, W","mgtan 98055
03/04/05 FlU 12;US F.n ~06~672429 AI!BL Il'C
School District
Contact Penon: Mr. Jack Connell, Fa~ilities J'roject Manager, Facihties and Operations,
(425) 204-4475.
The Responsible Official of the Renton School District hO;l(eby makes the following Findings and
Conclusioll.l hased upon review of the environmental checklist and attachments, other
information on file with the R"llton School District, and the policies, plans, and reb'lllations
designated by tho Renton School District as a basis for the exercise of snbstantive authority under
the Washington State Environmental Policy Act (SEPA) pllHuant to the Revised Code of
Washington RCW 43,21 C,060.
Findings of Fact:
1. The Renton School Distnct wlll demolish all existing buildings on the Kcnnydalc
Elementary School site and construct a (lew 61,392 square foot elementary school to
replace the existing school. The facility will accommodate about 650 studeots lrum
kmdergarten through fifth grade and employ about fiO teachers, admirusrrators, and support
staff. The new ,chool will be a twO-5tOry structure and ",ill include classrooms,
administrative office5, lunchroom facilities, a common area, gymna.illffi, and other ancillary
facilities ~sociated with an elementary ScllOO!. Site access will continue to he from NE
28th Sireet and separat~ accesses will be provided for the school buseslstaffparking area
amI the student dwp-olTlvisitor parking area. Grading will occur in the areas proposed for
the building, access, parking, playgrounds, and loading. The majority of the existing turf
play fields and soms trees along the perimeter of the site will be preserved.
2, The proposed use of the site as an elementary school is consistent with the City of Renton
Comprehensive Plan designallon of Re.<:idential Singl~ Fiill11ly and a,"ociated R-B Zoning
classification, Elementary Schools are conditional uses in the R-E Zone.
3, The site is surrounded by public rights-of-way. Adjacent land l1.Ies are re~idential to tbe
south and east, commercilll, residential and vacant to the north, and commercial and
residential to the west across 1-405.
4. Thsre will be approximately 800 cubic yards of general cut and 7,400 cubiC yards of fill
on the ~ite. ClIt will be reused a~ fill on site as allowed by the quality of excavated
material. The source of imp()rt~-d fill will be Ii Washington State Department of
TranspDrtation approved borrow site, ConsttuLiion a~tivltics may create a potential for
erosion.
5. 97 parking spaces arc proposed, 4 of which will be handicap spaces. There are currently
42 spacea. 2 of which are designated handicap ilpaccs
6. A traffic analysis conducted by The Tmnspo Group in December 2004 estimates an
increase of 210 avernge weekday trips based on the increase in building floor area of
2
Januory21,2005
03/04/05 FRI 12009 FH 2062S72H9 AIlBL I~C
14,500 square feet and the assumptions in the [nstitu!e of Transp()rtation EngineeT1l
Manual, 7th F.dition.
The inclease in floor area over the existing condition may result m an increased need for
public fire protectIOn services.
8. The ~ite is located in Zone 2 of the City's Aquifer Protection Area. No other sen~itive
areas are mapped for the Slie.
9. The site is eun:ently developed with approximately 2.7 acres of impervious surface. The
propo~ed ~ite pbn includes approximately 3,92 acres of impervious surface, an increase
ofl.22 acres.
10. The project is located along a geographic divide which separates the property into two
drainage basins, both ot which ultimately drain to Lake Washington through different
routes. The westem pm1ion of the site, approximately 1.2 acres, drairu; southwest in a
cl()sed pipe system beneath 1-405 towan.l Lake Wa"hington. Ue remainder of the site
flnws via a closed pipe convey.mce SystWl to the northeast where it eventually discharges
to May Creek.
The City of Renton has established Level 2 King County Runoff Time Series (KCRTS)
detention and basic water quahty treatment standards for stonn water in the May Creek
basin. That portion of the project m the west basm will require Level I KCRTS detention
and basic water quality. Drainage improvements for the project are proposed to be
d~signed in a~oonlance with the 1998 King County SlIffacc Water Design Manual, as
adopted by the City of Renton.
Areas generating runoff from the west basin will mdude bus drop off and staff parking
lot A combined wet/dry pond is proposed to provide the required water quality and
runoff control. Runoff from the May Creek b~;in portion "f the site includes a
combination of vehicle travel surfaces (student drop off and visitor parking) and non-
vehicular surfaces. Runoff from drive areas will be collected and conveyed to a
stonnfilter vault, which will proVIde the basic water quality required. Runoff from the
remainder of the site as well as clean runoff disclJarging from the stormfilter vault will be
routed to a below-grade concrete detention vault. Controlled runoff from the detention
vault will discharge to the elasting storm system in Kennewick Pla~e KE.
11. The site i., currently connected to the City of Renton public sewer system and publlG
water system. There is a II-inch watcr main located in i'lE 28'" Street. A 6-ineh main
currently loops through thc site and connects with thc 12-inch main In Kennewi~k Place
NE. The existing 6 in~h loop through the site will be r'1llaecd as part of the project.
There is an existing 12_inch sanitary sewer mam located in the NE 2S'h Street. I-:ooff-
site improvements will be required to provide water and sewer service to the sitc.
)
j.nuary 21, 2005
l,i] OOf
U3!O~!Oi; FRl 12.10 FAX 2062672H9 .\IIBL I~C
12. Sit~ soils were tested fur lead and arsenic by Morse Environmental. Inc., in October 2004.
The study shuwed that l~ad and unenic do not exceed published background levels.
13. An Environmental Site Assessmcnt was conducted by Morse Environmental, lIlc., in
August 2004. Potential SOUrCeS of enV1wnmental healtb hazards revealed by the study
were PCBs in the ballast for fluorcsccnt llghls and possibly ill the hydraulic lift of the
elevator in the existing structw:es. The 2003 AHERA Report by Nowicki & Asso~iulcs,
Inc., identified materials within the existing building~ on tbe site containing fonus of
asbestos.
CO:SCLUSlONS OF THE RESPONSIBLE OFFICIAL
Thc responsible offidal hI!.'! det~nnined that the proposal does not have a probable significant
adve,.,.e impact on the environment, and an Environmental Impact Statement (IllS) is not
required under RCW 43.2IC.030(2)(c), only if the following conditions are met. This decision
was made after review of a completed environmental checkhst, and other infunnatiun un file
with the Renton School District, and eXIsting regulations. This informahoa is avatlable to the
public no. request. TIlese mitigation mearure. are requircd as authorized undcr the Sub~tantivc
Authurity of SEPA in accordance Vtith the guidelines contained in the Renton School District
Rules and shall be implemented by the applicant.
Mitigation l\tea~ure!;
The applicant shall:
1. Traffic Impacf Mitigathm:
The applicant shall provide traffic impact mitigation fees of S75 per additional trip
generated by the project. The fee shall be calculated on the increase in floor areu over the
total of existing floor ar"" of structw:es on thc gne and shall be based on the Institute of
Transportation Engineer>< Tnp Generation Manual, 7''' Edition.
2. Fire Impact Mitigation:
The applicant shall provide fire impact mitigation fecs of $0.52 per additional square foot
of floor area.
3. Environmental Health MirigMhm:
Hydraulic fluid from the elevator, fluorescent light fixtures and I!.'!bestos-containing
materials shall be wlleeted and disposed of separate from other demolition debris and
consistent with City, State and Federal guidelines and be~t management practices.
4. Storm Drainage MitIgation:
Dramage improvements shall be desiglled ill ac"ordallCC with the 1998 King Cuullty
Surface Water Design Manual.
4
Januaty21,2005
~005
00104105 FRI n,lO F,n 20fj2672429 AlIBI. lXC
This MDNS is issued under the Washing/on Administrative Code (WAC) 197-11-340(2); the
lead agency will nO! act en tiJis propo~al for 14 days frem the date of Issuance. Only wntten
romment.l will be accepted and must be submitted by 5:00 p.m. on hbrunry 11, 2005, to Mr.
Ri~k Stracke, Executive Director, Facilities and Operation~, Renton School Di8triet, 1220 North
4th Street, Renton, W A 98055-1539.
Unless modIfied by the Renton School Distnct, &$ determination will become final following
the above comment deadhne. There lS no agency appeBI under Renton School District SEPA
policies.
Responsible Official:
Lead Agency: Renton School District
1220 North 4th Street
Renton, W A 98055-1539
(425) 204-4403
Date ofhsue: January 28, 2005
COInnlent Deadline: February 11, l005
The i~suanee of this Determination of"Konsignificance does not constitute project approval. The
applicant fillSt comply with ali other applicable requirements before receiving construction
permit, and/or approvals.
5
JanllllI)' 21, 200S
Facilities & Operations Center
OFFICE OF THE EXECUTIVE DIRECTOR
kaney Wei!
A,,'()ciat~ Pla"n~r
D.,'elopmem Service, Dlyision
City ofRcnwo
J053 SOllth Grady W'or
Renton, WA 98()55
Telephone: (425) 204-4403 Fax: (425) 204-4476
OEVELOPMENT P!..ANNING
CITY OF RENTON
MAR a 2 2flO5
RECEIVED
Project:
SLlbject:
Kennydale Elementary School, City ofRento~ rile 1'0. UJA05-1l1J4
SE!',\ Re"icw Complete
Dear ,\Is. ,,"'et!:
As SEI'A kaJ agenc}' for the KcnoyJalc Elementary School project, ille Renton School
Diwict j"ucu a :-'1itigAtcd Dcterminati(>n of ~oll.S1gnificance i?ID:\:S) on January 28, 2005.
Con"i,t~nt with WAC 197_11.510, the lead agency provided opportunity for public and
agency conunent by mailing notice to property owners within 300 feet of the ,ite, mailing
notice IO agencles on the CIty'S SErA agency mailing list, posting the ,ire, and publishing
nonce 111 the K.l11g Count)' J ouma!.
j\; of 5:001':-'1 on F<:htuary 11, 2110S, thc comment period on the thre,hold determination
wa, complete, Ko comment, wert: received that would cause the School Dismct to
wllhdr.w or modify the ;'I.IDKS. Therefore, the threshold d~te.rmin.tion stands as issued.
\v'ithin its adopted SEI'A pwcedures and policies, the Renton Schuul District has dccwd
not to provide for adnunistrari'-e app.al ufSEPA detotmination". An): app~nl of the MD>JS
must therefore be a iudicial appcal.
I'lcabc let m~ know if ),')U would like adJitional documentation of the Remon School
District's 5EI'A pt<)(."" for }our records.
Execum-~ Director
Facilities & Operations
c. Cah-", Ga,awav, Gr"~nc-G""awa\' ArchaceN, PLLC
Owen Dennis";n, AHBL, Inc, .
1220 North 4lh Street, Reo!on. Washington 98055
03/04105 FlU lZ:13 FA.!. 2062672429 AliBI. INC ~002
Facilities & Operations Center
OFFICE OF THE EXECUTIVE DIRECTOR
Telephon., (425) 2044403 Fax, (425) 204-4476
RENTON SCHOOL DISTRICT
MITIGATED ENVIRONMENTAL
DETERMINATION OF NON-SIGNIFICANCE
Dercrlptlon of
Current Proporal:
Proponent:
Location:
Lead Agcney:
KENNYDALE ELEMENTARY SCHOOL
The Renton School District is proposing to demolish all buildings that
comprise the existing Kennydale Elementary School and to construct a
new elementary schaal on the same 6.73 acre ~ilc. The proposed
approximately 61,392 square toot facility is designed to accommodate
approximately 650 elemetltary students per year WId employ 60 teachers,
administrators, and support staff.
Site access will continue to be from:.lE 28th Street and separate accesses
will he provided for the school buses/staff parking area and the stlldent
drop-offi'visitor parking area. Grading and removal of existing lawn and
landscaping will occur in areas proposed fOf the building, acccss, parking,
playgrounds, and loading. The majority of thc existing turf play fields
and some trees along the perimeter of the site will be preserved.
Dr. Dolores Gibbons, Superintendent
Renton School District #403
Kohlwes Education Center
300 SW 7th Street
Renton WA 98055
The site is located in the Southeast and Southwest Quarters of Section 32,
Township 24 North, RWlgc 5 East, W.M., in the City of Renton, King
County, WMhiogton, and is bounded by 1405, NE 30th Street,
Kennewick Place NE, and NE 28th Street. King County parcel numbers
are 334210-3310, 334210-3350, 334210-3355, 334210-3356, 334210-
3357, and 334210-3358. The site is addressed as 1700 NE 28th Street.
Renton School District
De:ember 17, 2004
1220 North 4th Stro<:t, R."!On. Woshl"ston ggOS5
OJ/04/05 FRI 12:13 fA~ 2062072429 AHBL I~C
SchO(llDl!itrlct
Contact Person: Mr. Jack Connell, Facilities Project Martager, Facilities and Operations,
(425) 204-4475.
The Responsible Omcia! ofthc Renton School District hereby makes the following Findings and
Conc1usion~ ba~ed upon review of the environmental checklist and attachments, other
information on file with the Rcnton School District, and the policies, plans, and rcgulations
dcsigrtated by the Renton School District as a basis for the exercise of substantive authorityunder
the Washington State Environmcntal Policy Act (SEPA) PUfllU!lIlt to the Revised Code of
Washington RCW 43.21C.060.
Bndlngs (If Fact:
1. The Renton School District 'Nill demolish aU existing buildings on tho Kennydale
Elementary School site and construct a new 61,392 square root elementary school to
replace the existing school. The facility will accommodate about 650 students from
kmdergarten through fifth grade and employ about 60 teachers, administrators, and support
statT. The new school will be a two-story structure and will include classrooms,
administrative offices, lUIlchroom facilities, a common area, gyIllIllISium, and other EIIlcillary
facilitie, as.'ociated with an elementary schooL Site access will continue to be from NE
28th Street and separate accesses will be provided for the school buseslstaffparking area
and the student drop-ofllvisitor parking area. Grading will occur in the areas proposed for
the building, aceess, parking, playw:ounds, and loading. TIle majority of the existing turf
play fields and some trees along the perimeter oftha site will be preserved.
2. The proposed usc of the site as an elementary school is consistent v,ith the City ofRcnton
Comprehensive Plan designation of Residential Single Family and associated R-8 loning
classification. Elementary Schools are conditional uses in the R-8 Zone.
3. The site is surrounded by public nghts-of-way. Adjacent land uses are residential to the
south and east, cnmmercial, residential and vacant to the north, and commercial and
residential to the west across 1-405.
4. There will be approximately 800 cubic yards of general cut and 7,400 cubic yards of fill
on the site. Cut will be reused as fill 00 site as allowed by the quality of excavated
material. The source of imported fill will bc a Washington State Department of
Transportation approved borrow site. Construction activities may create a potential for
erosion.
5. 97 parking spaces are proposed, 4 of whIch will be handicap spaces. There are currently
42 spaces, 2 of which are desigrtatcd handicap spaces.
6. A traffic analysis conducted by Thc Transpo Group ill December 2004 estimates an
increase of 210 average weekday trips based on the increase in building floor area of
2
Jonuary 21, 2005
IOlJ003
OJ!O~!05 FRI 12: \4 FAI 2062672129 AHBL INC
14,500 square feet and the aS8umptions in the Institute of Transportation Engineers
MatJual, 7'" Edition,
7. The increase in floor area over the existing condition may result in an increased need for
public fire protection services.
8, The site is located in Zone 2 of the City's Aquifer Protection Area. No other sensitive
areas are mapped for the site,
9. The site is currently developed with approximately 2.7 aeres of impervi<)us surface, The
proposed site plan includes approximately 3.92 acres of impervious surface, an increase
of 1.22 acres.
10. The project is located alorlg a geographic divide which separates the property into two
drainage basins, both of which ultimately drain to Lake W~shington through different
routes. The western portion of the site, approximately 1.2 acres, drains southwest in a
closed pipe s)':;tern beneath 1-405 toward Lake Washington. The remainder of the site
flows via a closed pipe conveyance system to the northeast where it eventually discharges
to May Creek.
The City uf Renton has established Level 2 King County Runoff Time Series (KCRTS)
detention and basic water quality treatment $tandards for storm water in the May Creek
basin. That portion of the project in the west basin will require Levell KCRTS detention
and basic water quality. Drainage improvements for the project are proposed to be
designed in accordance with the 1998 King County Surface Water Design Manual, as
adopted by the City of Renton.
Areas generating runoff from the west basin will inclode bus drop off and staff parking
101. A combined wet/dry pond is proposed to provide the required water quality and
runoff centroL Runoff from tbe May Creek baSin portion of thc site includes a
combination of vehicle travel surfaces (student drop off and visitor parking) and non-
vehicular surfaces. Runoff from drive areas will be collected and conveyed to a
stonnfilter vault, whiCh wi\! provide the basic water quality required, Runoff fmm the
remainder of the site as well as clem runoff discharging from the slormfilter vault WIll be
routed t(l a helow-grade concrete detcntion vai.1lt. Controlled runoff from the detention
vault will discharge to the existing storm system in Kennewick Place NE.
11. The site is currently connected to the City of Renton puhlic scwer system and puhlic
water system. There is a 12-inch water main located in NE 28'" Street, A 6-inch main
currently loops through the site and connects with the 12_im,h main in Kennewick Place
NE. The cxisting 6 inch loop through the site will be replaced as part of the project.
There is an existing 12-inch sanitary sewer main located in the NE 28th Street. No off-
site improvements will he required to provide water and sewer serviee to the site.
l
JEIIlUory 21. lOOS
1i!l00l
03/04/05 FRI 12:10 FA~ 2062B72429 AIlnL II.-e
12. Site soils were tcsted for lead and arsenic by Morse Environmental, Inc., in October 2004.
The study showed that lead and arsenic do not exceed published background levels.
13. An Environmental Site Assessm~nt was conducted by Morse Environmental, inc., In
August 2004. Potential sources of environmental health hnzards revealed by the study
were PCBs in thc ballast for fluorescent lights and possibly io the hydraulic lift of the
elevator in the existing structures. TIle 2003 AHERA Report by Nowicki & Associate9,
Inc., identified materials within the existing buildings on the site containing forms of
asbestos.
CONCLUSIONS OF TilE RESPONSIBLE OFFICIAL
Thc respon.~ible official has determined thai the proposal does not have a probable significant
adverse impact on the environment, and an Environmental Impact Statement (EIS) is nol
required under RCW 43.21 C.030(2)(c), o[lly if the fo!lov.iog conditions ure met This decision
was made after review of a completed environmental checklist, and other infonnation on file
with the Renton School District, and existiog regulations. This information is available to the
public on request. These mitigation measures arc required as authori..:ed llTuler the Substantive
Authority of SEPA in accordance with the guidelines contaiued in the Rentou School District
Rules and shali be implemented by the applicant.
Mitigation Melllures:
The applicant shall:
1. Traffic Impact Mitigulion:
The applicant shall provide traffic impact mitigation fees of $75 pcr additional trip
generated by the projcct. The fee shall be calculated on the increase in floor area over the
total of existing floor area ()f structures on the site and shall be based on the Institute of
Transportation Engineers Trip Generation Manual, 70), Edition.
2. Fire Impact Mitigation:
The applicant shall provide fire impact mitigation fees of$0.52 per additional square foot
of floor area.
3. Environmental Health Mitigation:
Hydraulic fluid from the elevator, []umcscent light fixtures and asbestos-containing
materials shall he collccted and disposed of separate from other demolition debris and
consistent with City, State and Federal guidelines and best management practices.
4. Storm Drainage Miti/{ation:
Drainage improvements shall be de~igned in accordance with the 1998 King County
Surface Water Design Manual.
4
Jonuary 21. 20QS
ill005
I
03(04/05 FRI IZ,,;' j'A{ 2062672429 AIIBL l~C
This MDNS is issued under the Washing/an Administrlllive Code (WAC) 197-11-340(2); the
lead agency will not act on thi. proposal for 14 days from the date of issuance. Only written
comments will be accepted and must be submitted by 5.00 p,m. on February II, 2005, to Mr.
Rick Stracke, Executive Director, Facilities and Operations, Renton School District, 1220 North
4th Street, Renton, W A 98055-1539.
Unless modified by the Renton School District, this determination will become final following
the above comme[J\ deadline. There is no agency appeal under Renton School District SEPA
policies.
Responsible Official: i",;k.~lkD~~'~k';.~E~,~,~,~,titi~'~'~D~irec(Or, F8°,CilC;tC;,-"-~~dCO~P,-,-,Cti-M"~"-:c:?,,<,~, ....
I.earl Agency; Renton School District
1220 :-<orth 4th Street
Renton, W A 98055-1539
(425) 204-4403
Date ofbsue: January 28, 2005
Comment Deadline: February II, 2005
The issuance of this Determination ofNonsigmfleance docs not constitute project approval. TIle
applicant must comply with all other applicable requirements before receiving construction
p=its and/or approvals.
s
January 21, 2005
~006
03104(05 FRI 12,12 H' 20GlS724Z9
To: NancyWeil
Development Services
City of Renton
1055 S. Grady Way
Renton, WA 98055
Phone No.: (425) 430-7270
Fax No.: (425)430·7231
AHBL INC
Fax Transmittal
Date: March 4. 2005
Project No.: 203254.30 Task: 00032
Project Name: Kennydale Elementary
School
Regarding: MONS
~OOl
WE ARE FAXING: (6) Sheets including the GOver shee!. A hard copy will D will not!8l be sent
THESE ARE TRANSMITTED: o For your review and comment o For your use o For approval
REMARKS:
Nancy.
D Reviewed as noted
!81 As requested
Per your request, I am sending a copy of the MDNS. Please let me know if there is anything
else you need for your review.
Thanks,
Owen Dennison, AICP
CIT, 0' RENTO'
RECEIVED
MAR 0 ~ "'L.i
BUILDING DIVISION
SEATTlE
m OCO~on!'l A..,,"S
Suit. J2I)
SNHIo, WA 981DI-«21
2118.ltIl.Z41.I "IE'
ZOIi.lil.Z42\I , ..
www .• hbl.com
Letter of Transmittal
To: WA State Department of Ecology
Date' January 28, 2005 WA Stale Department Qr Fish & Wildlife
WA State Department of Transporlatlon
WA State 0"'C9 of Archaeology 8. Historic Project No.' 203264.30 Task: 00036
P,eservation
WA State Department of Naturat Resources
Muckle.hootT ,ibe, Fisheries
Project Name: Kennydale Elementary
School
MuckleshQot Tribe, CuHural Resources
Duwamlsh Tribe
US Army Cmps of Engineers
King County Wa.lewater Treatment DIVision
King County Development 8. Environme~tal
ServIces
King County METRO Transit
City of Renton, Development Services
City of Newcastle, Community Development
City of Kant, Community Devolopmont
City of TukWila
Puget Sound Energy
Seattle Public Uhlit,l>S
Puget Sound Clean Air Agency
WE ARE SENDING'
NO. COPIES DATE
Regarding: SEPA Mitigated
Determination of Non-
Significance
DESCRIPTION
, 1126/2005 Notice of Determination of Non-Significance
, 1126/2005
THESE ARE SENT VfA:
I2J Mall o FedEx o Hand Delivered
THESE ARE TRANSMITTED:
I2J For your review and comment o For your use o For approval
Determination of Non-Significance
o Client Pick-up
DOther __
o Reviewed as noted o As requested
o \document. a"~ setllog,~cox~ooal settingsltemporary internet nles\(l;,1 e&,264trons13 ootlGe of rOOn. _ project.dOC
SEArTLE
J16 I)cel,",n .. t Avon., S
Sullo 320
S ..... , WA ,!104·4421
200,261.242> TEe
200,267.2429 '"
www.allbl.com
.....
REMARKS:
A SEPA checklist was for this project was circulated to you on or about November 5, 2004. Following the
end of the comment period, the Renton School District, as lead agency for the proposal, issued the
enclosed threshold determination. The comment period for the Determination of Non-Significance closes
February II, 2005.
Owen Dennison, AICP
Planner
AHBL, Inc,
c. Rick Stracke, RentOI1 School District #403
Calvll1 Gasaway, Greene-Gasaway Architects
AHBL Planning File
I
L· r I ,
Iti,-.... ;
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"TOo squa,e J(!(Ilar" r'g,,,es ","" arc loke" trom the Kmg County A~""~lL , IJ1.!lp aod .' e '1'1"'''''TL'le "nl,
1 K'~ol'n"lJJ (}..d,& ""1 w"n E~tHl1VI h"""f) [,2005
,
LEGAL DKSCRJI'TJON
VICINITY ~tAP •••
OTIIER"' •
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.. ASS~:SSMENT
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City ofllnton fi6pMmont 01 Planning / BLllldlng / Pub,," Works
ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET
REVIEWING DEPARTMENT:
Ii, II
SUMMARY OF PROPOSAL', The applicant is lequesting Heoring E<amlnar Condiuonal Use petmll and Silo Plan approval 10
construct a two-slory structure approximatoly 60,400 sq, ". to replace the eXl5lln~ elemenlary sohool bUlld'ng. wl,ich is to be
demolished_ Tha sile is 5 73 acres looated at 1700 NE 28th Strool. Tho project men will remain primarily in the southern Iwo-Ihirds 01
the site wilh parting and vehicular acceSS roconflgurallQn. Parking Modification is requirod Th~ School DIStrlcl is lead agency lor the
Environmental (SEPA) Review,
A. ENVIRONMENTAL IMPACT(e.g. Non-Cod<t) COMMENTS
~;::. :% ,
,
, , , , ,
B. POLICY·RELA TED COMMENTS
C. CODE-RELATED COMMENTS
.--."". , ..
~"vI,,,,, ... ,,
We h.ve tevi""ed /IllS appi"'.!ion will] pori","lar orr""""" IQ 'hose ateas ,,' IYnlClJ wo ",we "-'P'''U_," "",! "av~ "jenlrlled a",,,, 01 probi<"'" ""pacl Ot
.,,"" who", addlUoooi ,"Iot",.,j"" is need<!<! '0 P'''I,"rly .,.e._, 'h" p"'P0""!,
S'~n"u,e 01 Director or Authorized Reproso",.';"" Dal8
City,,, Helltoll DeP<irrmenl of Planning I BUilding / p"~.,,, Works
EiNVIRONMENTAL & DEVELOPMEiNT APPLICATION REVIEW SHEET
REVIEWING DEPARTMENT-
A. ENV!RONMENTAL !MPACT(e.g. Non-Code) COMMENTS
B. POUCY·RELATEDCOMMENTS
C. CODE-RELATED CDMMENTS
~",,"""' '" ,"" ~"vI",,,,,,,,"'
We I18ve rew.wed I"', "PpIICal",,, Wllh >lM","I", am"""," 10 Ihoso amos in wild, "" O"YO oxpMlse aM !lave ,d.,,/d,ed ",eo. 01 p,_No ImpoCl or
areas where addillOlla! 111""'''''0'''' i. noodad 10 properly a,soss Illls propos.1
Oat.
Cj/y "" lien ron D~parlmDnr 01 Planning! fJuildmg! PW-,,,c' Works
ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET
REVIEWING DEPARTMENT:
A. ENVIRONMENTAL IMPACT (e.g. Non-Code) COMMENTS
B. POLICY-RELATED COMMENTS ~~ I/U)~t{) ~Ih.
c.
City 0, "enfon D9{)<lrrln9n/ 01 Pl8nmng! 8w/dm9! Pu~ .. " Works
ENVIRONMENTAL & DEVELOPMENT APPLICA TION REVIEW SHEET
REVIEWING DEPARTMENT:
,"
SUMMARY OF PROPOSAL Tha opp/jeant IS requesling Hearing Exanllner Conditional Uso POfmlt and Site Plan "WlOvat to
coostrucl a lw<l-story structure approXimalely 60,400 sq. fl. to replace the eXlStin~ elemenlary school bUilding, which is to be
demolished The site is 5.73 acres located at 1700 NE 28th Street The prOjoct aroa will remain primarily In the southern tw".thiros of
the site wllh parking and vehicular accoss reconl'guration. Parking Modification is required The School Dislrict i. I"~d agency tor Ihe
Envi,onmenlat (SEPA) Review
A ENVIRONMENTAL IMPACT(e 9 Non-CoJa) COMMENTS .
E,.",.~I '" ,n. ~b', em;,,,,,,,,.", "'-" Im".«.
, ,
B. POUCY-RELATEDCOMMENTS
C. CODE·RELATED COMMENTS ;VJ
Eic'"crt' o"no Envl,,,,,,,,,nl
We 0"'" reviewe<llhis appi""''''''' ""h panlCo/ar 0".""&1 '0 'hose ar"". i" ",nICn we ""ve expM,se.M "oVEl ,denlll'ed areas 01 p"'""W. ""pac' "(
6',,"' "here ~ddlli,,"aJ ml0ll7l6Uoo .. nCd~aperlY .ssess Irns prOj"",.1. Q.. 1:::; 0 Y
S,un.'W" 0' D"oc'or or Au'''''"z'''' Rep'.,on'"'''o Dale
Cily~, .-lanlon Depaffmenl of Pldnmng! 8wldm9! Pu~",; Works
ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET
REVIEWING DEPARTMENT:
Iri t
A. ENVIRONMENTAL IMPACT(e.g. Non-Code) COMMENTS
B. POLlCY·RELATED COMMENTS
C. CODE·RELA TED COMMENTS
, "
E"'m.n' of Ih.
En.m,nm.nr
Da'e
,
• •
DATE:
TO:
FROM:
SUBJECT:
CITY OF RENTON
PLANNING/BUILDING/PUBLIC WORKS
:\1EMORANDUM
February 3, 2005
NancyWcil
Arneta Henninger X7298
KE"''''"YDALE EUcME:vfARV SCHOOL APPUCATIO:-.'
LUA 115-004
1700 NE 28TH ST
I have completed my review on this application localed in the vicinity of NE 28th 51 and
Kennewick PI NE located in Section 32, Twp. 24N, Rng. 5 and have the following comments.
Existing
• Waler --This site is served by the City of Renton water. It is located in 435 Water Pressure
Zone. The static pressure IS approximately 80 psi at the street level. There is an existing
12" walermain in NE 28th 51 and an existing 12" watermain in Kennewick PI NE. There is
an existing 6" watermain located on the site which needs to be abandoned andlor relocated
by this project due to the proposed 10C8tion of the new building as shown on appliC8nl's site
plan.
• Sanitary --There IS an existing 12" sanitary sewer main in NE 28th SI.
• Storm --This project is 10C8ted in the May Creek Drainage BaSin. There are storm drainage
facilities located In NE 28th St and in Kennewick PI NE.
• This site is located in the Aqua Protection Zone 2.
Requirements·
WATER:
• There is an exisilng 6" watermain 10C8ted on the site which needs to be abandoned and/or
relocated by this project due to the proposed location of the new building as shown on
applicant's Site plan.
• No permanent structures may be 10C8ted over utilities.
• Per the City of Renton Fire Marshall the preliminary fire flow for this project is 3000 GPM.
Any new construction must have one fire hydrant capable of delivering a minimum of 1.000
GPM and shall be located Within 150 feet of the structure and additional hydrants (also
capable of delivering a minimum of 1,000 GPM) within 300 feet of the structure. This
distance is measured along the travel route. The number of additional hydrants required is
dependent on the calculated fireflow. If the fireflow remains at 3000 GPM, three fire
hydrants would be required.
• Water System Development Charges of $0.213 per square foot gross area may be required
if not previously paid. The Development Charges are collected as part of the construction
•
permit Please note that any parcel that currently has waler 81ld or sewer service is eligible
for a prorated system development charge. Your project will be reviewed to detemline how
much redevelopment credit applies.
SANITARY SEWER:
• Applicant needs to submit a sanitary sewer plan showing how they Will apply sewer service
to the new site.
• Any use in the building subject to oils or grease shall require the installation of a grease
removal system as determined at the time of plan review.
• System Development Charges (SDC) are $0.126 per square foot These fees are collected
at the time a construction permit is issued. Please note that any parcel that currently has
water and or sewer service is eligible for a prorated system development charge. Your
project will be reviewed to determine how much redevelopment credit applies.
STREET IMPROVEMENTS:
• Construction of a building will trigger a separate review.
• Transportation Mitigation fees are $15, 750. This is a SEPA condition.
STORM DRAINAGE:
• This project IS located in the May Creek Drainage Basin. A conceptual drainage plan and
report is required with IMe formal application for a commercial project. A drainage control
plan designed per the 1998 King County Surface Water Manual Level 2 is required for this
project as a SEPA condition.
• There are storm drainage facilities located in NE 28th St and in Kennewick PI NE.
• The Surface Water SOC fees are $0.249 (but not less than $715) per square foot of new
impervious area. These fees are collected at the time a construction permit is issued.
GENERAL:
• All required utility. drainage and street improvements will require separate plan submittals
prepared according to City of Renton drafting standards by a licensed Civil Engineer.
• All civil engineering plans shall be tied into a minimum of two of the City of Renton current
Horizontal and Vertical Control network.
• Permit application must inctude an itemized cost estimate for these improvements. The fee
for review and inspection of these improvements is 5% of the first $100,000 of the estimated
construction costs; 4% of anything over $100,000 but less than $200,000, and 3% of
anything over $200,000. Half of the fee must be paid upon application for building and
construction permits. and the remainder when the permits are issued. There may be
additional fees for water service related expenses. See Drafting Standards.
"'. K'Yle" K.
"'J'roJ",,'·K,'''''Y''''.FFr F-'<,I 1(" '0,\0",
S# lei!
Project Name:
Project Address: 170D WE 1.8*' ?rgebf
Contact Person:
Permit Number: LVPr 05-QQY
Project Description: _________________________ _
Land Use Type: o Residential
o Retail
eEl-Non-retail
Calculation:
'210 ADT
210 /l'O> = ~ IS,lSO.=
Transportation -l! 00
Mitigation Fee: '« IS, lesO.
Method of Calculation: o lTE Trip Generation Manual, 7th Edition
c!Zf-Traffic Study T!2AUo::.po l;t /~..., o Other
Calculated by: K. b\II£1<X-Date: a./~~
Date of Payment: _________________ _
CUy ~ .. '''nten Department 01 Pla"nlng! BUlldmg! Pu".," Warks
ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET
REVIEWING DEPARTMENT'
"
SUMMARY OF PROPOSAL: The applicanl IS requesting Healing E,amlner Condillonal Uso parmi! and Site Plan approv.' to
con.t!IJct a two-story struclure appro<imaloly 60.400 sq. ". to reploce the exlSuo~ elementary school buitding, WhlCl1 IS to be
demolished. The sile is 6 73 acre. located at 1700 NE 2Bth Street, The proJecl area wrll rem.in prrmmily In the SOUlhern two-thirds 01
th~ sit~ wilh parking and vehicular aocess (eC<lnliguration. Parking Mi;tdlflcotion " ",qurred. The School D,Sir,et '" lead agoncy tor rhe
Envrronmantal (SEPA) Review.
A. ENVIRONMENTAL IMPACT(e.g. Non·Code) COMMENTS
E"'"","' of u,. E",",,,,,,,","'
B. POLICY·RELATED COMMENTS
C. CODE_RELATED COMMENTS
6;0".'"'" of Dle"""'r Qr "'ullm",oo Rap' enlatl""
EI_"' of /h.
E"vir""m'n'
D,""
,,-'n''''''''',a" 'I"" .. "
City ,,, nenton DapaMleill 01 Planning I Bwldmg I Pu~"c' Worn.
ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET
REVIEWING
SUMMARY OF PROPOSAL', The applicanl is raquesllng Hearing Examinor Cond,l,onal Use permi .rd S.e Plan approval 10
constllJot a two-story stllJC\ura approximately 60,400 0'1, ft, 10 replace tile e'isling el~mentary schaal buildIng, which i. to b~
<iamoiishe<!. The site is 0.73 acres localed al 1700 NE 28th Street Tho PfOj<l'C1 area will remain primarilY In the soulhern two-thirds 01
the <e wilh pallCng and v<>hicular access '<l'COn~guralion, parking Modlficalion IS required. The School Districi is lead agency for Ihe
En,,;ronmenlaJ (SE"AI Review.
A. ENVIRONMENTAL fMPACT(e.g. Non-Cada) COMMENTS
EIom"", 01 ",.
En,i",,,,",,,,'
B. POLICY-RELATEDCOMMENTS
C. CODE-RELATEO COMMENTS
,
We (,ave ,e""wed lilts app/J""/Jofl wilh paniculBr aHenrJOll 10 I~Ose am •• i" wlrich we Irave expenJso aM "." idenlJfroo aro" 0/ pm/>/ll;lo ;mp'" Off "",,,l$ .,.he", actrnltom! informa,"", is ne.cIe<i 10 p"'pcrly "s ... rills p"'posai.
SJg"""'" of 00"",101 or ALJlhorizOCI Ropr.,eniatl"" Dato
CHy ,,. Henton Dep"rtmen( o( Planning! Budding! PUU"" WDrks
ENVIRONMENTAL & DEVELOPMENT APPL/CA TION REVIEW SHEET
REVIEWING DEPARTMENT' COMMENTS DUE: FEBRUARY 15, 2005
APPLICATION NO: LUA05-004. CU-H. SA·H DATE CIRCULATED, FEBRUARY 1. 2005
APPLICANT: Renton Schoot District PROJECT MANAGER, Nane Well
PROJECT TITLE: Kann dale Elementaty Reconstruclion PLAN REVIEW: Arnela Hennln e,
SITE AREA, 6 73 aC'~" BUILDING AREA ( ross) 60,400 s uoro IGet
LOCATION: 1700 NE 28~ Streel I WORK ORDER NO, 77371
SUMMARY OF PROPOSAL: The applicant IS requeSllng Hearing Examine, Conditional Use permll and SJie Pion approval to
coostruet a two-slaty structure appro<imalely 60.400 sq, ft, to replace Ihe existing olomantary school building, whrch " '0 be
demolished The .ilo is 6,73 acres located at 1700 HE 281h Sireet Tho project area WJlt remain primarily in Ihe soulhern two'lhirds oj
the S;[O With parkir>g and vehicular access recorofiyuratlon Parking Modification IS required. The School District is lead agency tor the
Environmentot (SEPAl Review.
A. ENVIRONMENTAL IMPACT (e.g. Non-Coda) COMMENTS
B. POLICY·RELATEO COMMENTS
C. COOE·RELATEO COMMENTS
We Iliive reVIewed Illrs app/J""OOO with p.~ic,,"r attenllon 10 Illose areas In wlllCh we ""'-0 cxpomse onel I,.," kJenl,'.'ed areRS 01 p'oL'dN" Im""c! Of
areas whore addltromri,nlofma""", neecie<J '0 properly "5.5ess 11,15 f"OPO&'/ ~
(o;Cul 0, )
$i9",'ur. of D"O¢Io' or Ihor: ed Rep'.sen'
•
DATE:
TO:
FROM:
SUBJECT:
CITY OF RENTON
FIRE PREVENTION BUREAU
MEMORANDUM
February 2, 2005
Nancy Weil, Senior Planner
Corey Thomas, Plans Review Inspector
Comments for Kennydale Elementary
Environmental Impact Comments:
1, The fire mitigation fees are applicable at the rate of $0.52 per square foot of building
area. This fee is paid at time of building permit issuance, Credit is given for floor area
removed from the site. Applicant to provide floor area of removed building.
Code-Related Comments:
1. The fire flow is 3,000 gpm. One fire hydrant is required within 150-feel of the
structure and two secondary hydrants are required within 300-feet of the structure.
Any existing fire hydrants used to meet this requirement must meet current
specifications including 5-inch storz filtings. Available fire flow for this location is
4.000 gpm. Proposed 6 and 8-inch looped main is not sufficient. it shall be up-sized
to a 10-inch looped main.
2. Separate plans and permits are required from fire departments for the installation of
the required fire sprinkler. fire alarm system, kitchen hood fire suppression system
and generator fuel tank installalion.
3. Fire department access roads are required to within 150-feet of all points on the
buildings. Roads shall be a minimum 20-fool wide paved roadway with approved
turn arounds. Access roads shall meet minimum 25-feet inside and 45-feet outside
turning radius.
Clct
Ken.lom2
City 0 ••• enton Department 01 Planning! Bvlidmg/ p"'~". Norks
ENVIRONMENTAL & DEVELOPMENT APPLICATION REVIEW SHEET
REVIEWING DEPARTMENT.
SUMMARY OF PROPOSAL The applicant IS requesting Ijea,,~g E'"ITIlner Condltlon"' U.O pormll a~d S,tD Plan apprDval to
construcl a two.story slruclure approxlmsleiy 60,400 sq, ft. 10 leploce The eXlslln~ elerr.en'~ry school bUilding, which IS 10 DO
~amollsh.d The Silo " 6.73 acres locared at 1700 NE 281h Street. The PlOjOCI a'ea will remain pnmanly;n the southern two·th;'~s 01
the site 1'.',,11 parking end vohlcular aCCQSS reconilguralion Park;r\g Mod,f,cal;oh IS requrred The School District IS lead agency lor the
EnvlIonmental (SEPAl ReView.
A. ENVIRONMENTAL IMPACT(e,g. Non·Coda) COMMENTS
B. POLlCY·RELATED COMMENTS
C. CODE-RELATED COMMENTS
Wo have reViewed thiS r )/'
,I I ,,, In" PlOP"'"'
, "
Element cf Ihe Env/,,,,,m,m
Dato
Impacrs
P,""s",.
Mal'" Impacls
Mo,"
'"""malic" N,eo,,",y
" -
CITY OF RENTON
CURRENT PLANNING DIVISION
AFFIDAVIT OF SERVICE BY MAILING
On the first day of February, 2005, I deposited in the mails of the United States, a sealed elwelope
containing Notice of Application documents. This information was sent 10:
" , II' , , , ,
" "9 Name Representin
surrounding properly owners see attached list
(S~gna!ure of Sender),,· _C~ ... .Jllil~~',",("r"'"'Ub"'"Y'-____________ _
STATE OF WASHINGTON )
) 55
COUNTY OF KING }
I certify that I know or have satisfactory evidence that Holly Graber
signed this instrument and acknowledged It to be his/her/their free and "''''''1 ,~!
purposes mentioned In the instrument. ;5::,1~~.~~'
D,"dtbzai0A 9, o;a:>j __
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133270015000
LEVEQUE GREGORY DWIGHT
TRUSTEE
2930 KENNEWICK PL NE
RENTON WA 98056
884800002203
MERCADO JOSE JUAN
1624 NE 27TH CT
RENTON WA 98056
052305905300
ONEAL TERRY G
2716 MEADOW AV N
RENTON WA 98056
133270016008
ROBINSON RICHARD A
2928 KENNEWICK PLACE NE
RENTON WA 98056
884800004001
SMITH DAVIDA
1630 NE 27TH CT
RENTON WA 98055
133270002008
STRASEN STEVEN ALDEN
2956 KENNEWICK PL NE
RENTON WA 98056
133270005001
VARLETTI MICHELLE
1059 REDMOND AV NE
RENTON WA 98056
334390304403
WELLS DEBBY
1725 NE 28TH ST
RENTON WA 98056
)270001000
MEANS RICK R
2958 KENNEWICK PL NE
RENTON WA 98056
334210337203
MOATS SHARON L
2815 LINCOLN PL NE
RENTON WA 98056
334210337104
PIPKO YEVGENIY+LlLlYA
2821 LINCOLN AV NE
RENTON WA 98056
334210346600
SCHLORDT CONRAD A
14504 11TH AV NE
ARLINGTON WA 98223
133270004004
STEWART EDWARD+NOEllE M
2952 KENNEWICK PL
RENTON WA 98054
334210336809
STUMBO KENNETH A+NARAINE NA
1801 NE 29TH ST
RENTON WA 98056
334390304205
WALKER RALPH E
2732 JONES AV NE
RENTON WA 98056
133270018004
WINGATE DElOIS J
15278 SUNWOOD BL #14
TUKWILA WA 98188
d650001204
MENGES KEITH
1615 NE28TH ST
RENTON WA 98056
133270003006
O'CONNEll DEBRA L
2954 KENNEWICK Pl NE
RENTON WA 98056
229650008506
RANKIN lORENZ N
2710 MEADOW AV N
RENTON WA 98055
229650010007 -~ I'lOt-
SCHOOS GILBERT A Knov.\f'I
2712 MEADOW AVN I I
RENTON WA 98056 2 q 0:)
334210329705
STOVER LAVERNE+ANNETTE
1428 N 28TH ST
RENTON WA 98422
133270017006
TREFNY RICHARD B
2926 KENNEWICK PL NE
RENTON WA 98056
334210337005
WANG JOHNSON
2827 liNCOLN PL NE
RENTON WA 98056
334210336502
ZALLOCCO JOHN H
2816 KENNEWICK PL NE
RENTON WA 98055
NOTICE OF APPLICATION
, ... "' ""''''." h .. , •• " """ .,,' •• "", .. ~",., ",",,,_, '"'"'," ~",.,," ~ 'h. ,II, .. ".,,'~
, .. """"'"' ~,.'" .. ~"h •• Ih •• ",,,",," ... ~. _ • ..., ""'" "" ... "
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"
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''" ,. ''''', " .. ,," ...... C', '" ~, ... ",., "''" "~,, ""
\', ,,,,,,,,,
'''" ".' '""' ", ", " ,
,,,.,, 'NCL'O' T", '"""lOT"'""" W'''N CAlll"G FOR ,"0"" "eE ,,,"""oon,"
DATE OF A.,,,O,",,O"
NO""" OF CO"'"TE • .,""AT'ON,
""",,,,11."'''
Fob,""", "'''
"
CERTWICATlO:\
""
~"""""" ~""~it-ll<A'>" _~.-,,~ .. ·····.:~C'L'" : .,~,.,S'ON,;·.·"...·" --:: .'";,,'" "1<)', '.0(\ " :: ."0 ~OTA-9 ."\ .... ,, f ,0 I-,;;;', ~"
; -'-.. ~ r!>: I>U",C i : 'to"", '-.'~~ ',.,"?i;.··.~·29.01 ..... ··~O .! 't 0 ........ ",0-_
'" '" W,,",-\\ .--<L -, lL. .:7 I, ~~--I, <.)IQ~ U'Qr'C ' bereby celtl!y that \:J COplCS ot the ahove <locum~/1t>-''''~··
were po ell by me in ~ conspicuous places or nearby the described properly on
DATE f'/Os"
NOTICE OF APPLICATION
A Ma,t.r Application h.s b •• n mod .nd _eoopled ",t~ I~. Developmen, s.,,,;c •• Division 0' the City of Renton.
Tn. following brl&lly d~'O,ibe. the application ano the n.co .... y Publlo Appcoval"
PROJeCT NAME/NUMac~, Kennyd.'. Elomon,.ry ROCO""'OO"O" I LUA05-004, CU·H, SA·H
PROJ~CT DESCRIPTION; The appl~anl " roqJOSting Hea'iog Ex'm'""' Cootilt,o.,al U,g porrr!' ana S,"
Plan appmval to oon.troc' a ,wo·s<ory strLctur. appro"'nat&ly 60,400 sq. ft '0 replace tho «'.ting "'emen'"" ""hool
bu,'dlr,g. wn~h ., 10 b. demO;;,hed, The ,IT. " 6 73 acros located al 1700 NE ~str. S" ... , The WOJec' a, •• will ,.",.,n
pom.Clly m tho ,ou,hern 'wo,m,C<ls ollha ,ite With parking and Vllh>cul" acc"" ,","onhguratlon. Porktng Mad,r,e81ocn "
r<lqu red. The School DIS'rI,t " Igad aggr.cy 10, 'M En"""",,,"r'"' (SEPA) Rev,.w
PROJECT lOCATION, 1700 NE 2B~ S,roo,
PUBLIC APPROVALS;
APPLICANT/PROJECT CONT ACT PERSO~_ Flick S'raoke -TEL: 1425) 204~403
ENVIRONMENTAL (SEPA) REVIEW: Condu""" ny I". Ron'"" 8<hool D'''rI''
PUBLIC H~ARING: A p,bllo h#,,,n~ is '"n:"l'loly ,eheoul8d lor r.'otoh 1 5, 2005 before "e Ron'on
"earlng Exam,nor ," Ro_"ao Cau;cll CMmb.", Hea"r,gs bog," at &'OD AM on
'he 71h 11001 01 tho "0" Ront"" e'ly Halllocate<J at '055 SOLLI\ G,"~y Way,
Comment. on tho .bov~ opplleo'ion ",",t be '"~mltto<lln writing 10 Nonoy W.H, S.nior PI.nnor, Dov,'opm.n'
S.""«o Dlvlolon. 1055 S~"th Grady W.y, Ronton. WA 98055. ~y 5:00 PM on fobru.,y 15, 2~~5, It \'OU havo
quo,tions about thIS propo •• t, '" wISh to be modo 0 ,,,,"yol record and ,"c~ve odd,..,nol neM,cat,on by m,'I, oom_ell he
Plolecl Manager al (4251 430·7270 A"yone ",ho subm,l, "'rI,len commoo'" ,,,II ,u'om.',cally becomo a pari)' 01 ,.,old
and w,lI bo notlt,ed 01 any dec;"on 00 t,IS ;,.Ojoct
PLEASE INCLUDE THE PROJECT NUMBER WHEN CALLING FOR PROPER FILE IOENTIFICATION
DATE OF APPLICATION: January 11. 2005
NOTICE OF COMPLETE APPLICATION: February 1. ~005
DATE OF NOTICE OF .,'''''OA"
I
JI )'Co would ,;,. '0 be mad. a p .... y of reoord :0 roco,v. IUI1I,., InfOrmal,on on ;h , proposoa proIOC'. CC'OPI.'. 'h" lorm
and retum to; CilYof Ronton, D.'."'pmonl PI_oo;ng, 1 055 Sou,h G'Ody Way. Roo'on. WA 90055,
File Name I No_: Kennydale Elemonwy Roco",tructlon IlUAOo-"W4, CU-H, SA-H
NAME:
MAILING ADDRESS'
TELEPHONe NO ..
February 1, 2005
Calvill Gasaway
Greene·Gasaway Architects, PLLC
PO 80x 4158
Federal Way, WA 98063-4158
CITY OF RENTON
PlanningIBuildinglPublicWorks Department
Gregg Zimmerman P.E.,Admlnbcrator
Subject: Kennydale Elementary Reconstruction
LUA-05-004, CU-H, SA·H
Dear Mr. Gasaway:
The Development Planning Section of the City of Renton has determined that the
subject application is complete according to sllbmittal requirements and, therefore, is
accepted fOI review.
It is tentatively scheduled for a Public Hearing ill front of the City of Renton Hearing
Examiner on March 15, 2005 at 9:00 AM, Council Chambers, Seventh Floor, Renton
City Hall, 1055 South Grady Way, Renton. The applicant or representative(s} of the
a.pplicant are reqUired to be present at the public hearing. A copy of the staff report wilt
be mailed to you one week before the hearing.
You will be notified if any additional information IS reqUired to continue processing your
application.
Please contact me at (425) 430·7270 if you have any questions.
Sincerely,
Nancy Weil
Senior Planner
Renton School District / Owner/Applicant
-------,C,C,",O,-,.c,C'"GC,,-,c,cwc.-,-.cRc,-.-,.-.-, w~"c,c,.-,-,,-.~.,c,c,c,-------~
® 1 ,,"po_~.5O% <=)<Iod ~_. """ ='~
City of Renton DEVELOPMENT
CITY OF RE~~NIN
LAND USE PERMIT JAN 1 , 20/J5
RECEIVED MASTER APPLICATION
PROPERTY OWNER(S) PROJECT INFORMATION
NAME: Renton School District PROJECT OR DEVELOPMENT NAME:
School Dist. Contact: Rick Stracke Kennydale Elemental)! School Replacement
ADDRESS: 1220 North 4'" Street PROJECTIADDREssls)fLOCATION AND ZIP CODE;
CITY: Renton, WA '" 98055 1700 NE 28'h Street. Renton, WA 98056
TELEPHONE NUMBER: (425) 204-4403 KING COUNTY ASSESSOR'S ACCOUNT NUMBERIS):
334210-3310 334210-3356
334210-3350 334210-3357
APPLICANT (If other than owner) 334210-3355 334210-3358
NAME: Same as owner EXISTING LAND USEIS): Public elementary school
COMPANY (if applicable) PROPOSED LAND USE(S) Public elementary school
ADDRESS. EXISTING COMPREHENSIVE PLAN MAP DESIGNATION:
Residential Single Family
CITY ZIP:
PROPOSED COMPREHENSIVE PLAN MAP DESIGNATION
TELEPHONE NUMBER Ilf applicable)' No change proposed
EXISTING ZONING: R-8(P)
CONTACT PERSON
PROPOSED ZONING (if applioable): No change
NAME; Calvin Gasaway proposed
COMPANY (ij applicable): Greene-Gasaway ArchitectS. SITE AREA (in square leet): 287,486
PLLC SQUARE FOOTAGE OF ROADWAYS TO BE DEDICATED
ADDRESS: PO Box4158 FOR SUBDIVISIONS OR PRIVATE STREETS SERVING
THREE LOTS OR MORE lif applicable): N/A
CITY: Federal Way, WA ZIP: 98063·4158 PROPOSED RESIDENTIAL DENSITY IN UNITS PER NET
ACRE lif applicable), N/A
TELEPHONE NUMBER AND E·MAIL ADDRESS:
Phn: (253) 941-4937 Fax: (253) 941-5122 NUMBER OF PROPOSED LOTS (ff applicable); N/A
E-Mail: calvin(ij)qqarchitects,com
NUMBER OF NEW DWELLING UNITS (if applicable) NIA
NUMBER OF EXISTING DWELLING UNITS (il applicable).
NIA
SQUARE FOOTAGE OF PROPOSED RESIDENTIAL
(
SQUARE FOOTAGE OF EXISTING RESIDENTIAL ~OO,",CA~'~''''CCO~OC'~AG~'~;C~,~,~o~,~o~o~m~~~~s§;m'''---1
BUILDINGS (i
SQUARE FOOTAGE OF EXISTING
BUILDINGS TO REMAIN 1 o
NET FLOOR AREA OF NON·RESIDENTIAL BUILDINGS (if
NUMBER OF EMPLOYEES TO BE EMPLOYED BY THE
NEW PROJECT (I I 60
PROJECT VALUE: NIA
IS THE SITE LOCATED IN ANY TYPE OF
ENVIRONMENTALLY CRITICAL AREA, PLEASE INCLUDE
SQUARE FOOTAGE (If appliCable),
:J AQUIFER PROTECTION AREA ONE
./ AQUIFER PROTECTION AREA TWO
0 FLOOD HAZARD AREA sq ft.
0 GEOLOGIC HAZARD ., "
0 HABITAT CONSERVATION sq ft.
0 SHORELINE STREAMS AND LAKES sq ft.
0 WETLANDS sq. ft.
SITUATE IN THE
RENTON, KING
QUARTERS OF SECTION 32, TOWNSHIP 24N, RANGE 5E, IN THE CITY OF
TYPE OF APPLICATION & FEES
List all land use applications being applied for:
1. Conditional Use Permit ;WOO $-
2. Site Plan Approval jC()O ~
3.
4.
Staff will calculate applicable fees and postage. S
AFFIDAVIT OF OWNERSHIP
" ,now or oa,.
(Slgnalu r& of OMlerlReprosenl:3llv& I
I review b Rention School
LEGAL DESCRJPTJOl\'
TRACTS 47, 48 AND 49, C,D. HILLMANS LAKE WASHINGTON GARDEN OF EDEN
DIVISION NO.1, ACCORDING TO THE PLAT THEREOF RECORDED IN VOLUME
11 OF PLATS, PAGE 63, RECORDS OF KING COUNTY, WASHINGTON,
TOGETHER WITH THAT PORTION OF ABANDONED PACIFIC COAST RAILROAD
RIGHT OF WAY ADJACENT THERETO, EXCEPT THE SOUTHEASTERLY 15 FEET
LYING EASTERLY OF THE WEST LINE OF SAID TRACT 48 PRODUCED SOUTH,
EXCEPT THAT PORTION FOR STATE HIGHWAY 405.
EXCEPT COUNTY ROAD,
EXCEPT THAT PORTION CONVEYED BY RECORDING NO, 9506120413.
TOGETHER WITH TRACT 50, C.D, HILLMAN'S LAKE WASHINGTON GARDEN OF
EDEN DIVISION NO.1, ACCORDING TO THE PLAT THEREOF RECORDED IN
VOLUME 11 OF PLATS, PAGE 63, RECORDS OF KING COUNTY, WASHINGTON.
TOGETHER WITH THE SOUTHERLY 15 FEET LYING EASTERLY OF THE WEST
LINE OF SAID TRACT 48 PRODUCED SOUTH OF THE ABANDONED PACIFIC
COAST RAILWAY ADJACENT THERETO.
EXCEPT COUNTY ROAD,
SITUATE IN THE SE AND SW QUARTERS OF SECTION 32, TOWNSHIP 24N,
RANGE 5E, IN THE CITY OF RENTON, KING COUNTY, WASHINGTON.
DEVELOPME::NT SERVICES DIVISION
, I ~,
WAIVER' SUBMITTAL REQUIRl .ENTS
FOR LAND USE APPLICATIONS
his fequirement may be waived by:
Property Services Secti<m PijOJECT NAME: __________ _
• Puillic WOfks Plan Review Section
Build",g section
. Development Planning Se~lion
Q.IWEB\PIfIIIDEVSER\I\Fofms\F'lanninglwaiver,xls
DATE: __________________ __
DEVELOPME
CITY OF ~,e,.~%NING
JAN" 1005
RECEIVED
OEVELOPMENT SERVICES DIVISION
WAIVE'WF SUBMITTAL REQUIR"ENTS
FOR LAND USE APPLICATIONS
Photos;mulations
Th',s requ'orement may be waived by:
1. Property Services Sl!Ction
2. Public Works Plan RevIew Section
3. Bu,ding Section
4. Development Planning Section
Q'\WEBIPWlDEVSERVlFormsIPlanninglwaiver.xls
DATE:
TO:
FROM:
SUBJECT:
DEVELOPMENT PLANNING CITY OF RENTON
JAN I I 200~
RECEIVED
MEMORANDUM
Conslruclion Services, Fire Prevention, Plan Review, EONSP,
Projecl Planner
Neil Walls, Development Services Division Diroclor
Now Preliminary Application: /0'11--::(}(.01;. @/1p'!4.1:rC;-;;, CW!I/Y-v', 1;fJ~
LOCATION, _~t CL"I"'O"Q"--.cIJ"E;"--'25'J""{!L_I __ u ______ ' __ _
PREAPP NO, _~p~Q.~[;~O-"y--"O~~~3-, ________ _
A meeting with the applicant has been scheduled for (j/fj 76!kl,tl()y ,Thursday,
/ f) /).«y' ( , in 000 01 the 6"" floor nlere rooms (now City
Hall). II this meoting is schoouled all0:00 AM, the MEETING MUST BE CONCLUDED
PRIOR TO 11 :00 AM to allow time 10 prepare for the 11:00 AM moeting.
Please review the allached project plans prior to the schoduled meeting with the
applicant You will not need to do a thorough "permit level" review at this time. Note
only major Issues thai must be resolved priorto formal land use and/or building permit
application submittal. '
Plan Reviewer assigned is Anit~
, Please submit your written comments to "ail £")--0 ,1&4& ' (Planner) at
least two (2) days before the meeting. Thank you. l~~~~~ £~'I2&-~~~
1I:\Di vi, ion., IDoove1op.>e,lDoov & Planj n g \T 0 "lpM. \Preapp2
Rcviocd 9100
RELEVANT COMPREHENSIVE PLAN LMD USE POLlClES
Design and lmprovemeflf Sra"dards for He.,idemial Areas
Policy LU-70. Streets. sidewalks. pedestrian or bike palh .. in a neighborhaod developmcm
should be arranged as an ;lIIerconnecting netwark the extensive ar predaminant use of cul-
de-sacs and pipestems should be discauraged far new diNe{apment, A "flexible grid"
paltern o/SlreelS and pQ(h' .. ,~y" should he used /(J canneci adjacem and future dlNelapment.
Policy LU-76. To visually imprave the public streflscape and the safety of perimeter
sidewalk; und facilitllte aff,.tr~et parking, fonslruclion of alley.' providing rear access ta
liervice entries and garages s"auld be enco",'aged.
Public Facilities Lalld Use Policies
Policy LU-221. Site and buildillg design shQuld be oriented primarily t(Jward p~de.\·lria"-"
especially in Ihe d"wntawn area, with provisions far Iransit and autonwbdes as widl.
Policy LU·224. f'rimary vehicular access to sites should be from principal ar mjnar
arterials_
Policy L U_228. fmernal site circulatian shauld be primarily pcdeslrian-orienl~d.
CITY OF HENTON
ECONOMIC DEYF;LOP]\1ENT
NEIGHBORHOODS, AND STRATEGIC PLANNING
MEMORANDUM
COM.PREHENSIVE PLAN COMPLIANCE
DATE:
FROId:
STAi'f CONTAC[:
SUBJECT:
Aogm( 13, 2004
Jason lonbn RCbJ«tt~
Don Erickson
Kennydale Elementary School Reconstruction, 1700 NE 28"'
Street; PRE 04.097
Summary: The ~ppl!cant lS proposing to demoli.,h all existing single-story ,ehool bUlldmg amI
replace it w,th a two-story new elementalY school on the ,"me site. The ,ubjec( :;ilc is deSignated
Residential Single ,,"mily on the Comprchc",,,'e Plan Land Use Map and zoned R-8, eight unit.<.
pcr Tlct aCrC. The attached matrix ,how, how the proposal complies WIth c>'lsling relevant
Comprehensive Plan policies (anached),
Reside",ia! Areas nesi~n and
Imp,ovement Siall/la,d,
FlNDlliGS,
The snhJect puhlic facilLly appears to comply "jlh mo,( relcvant Comprehen>1ve Plan land usc
policies.
Attachments
Kannydale Elementary Sch"," Rebuild Pre·Application MeetJng
File No_ Pr1'l-04-097
August 26, 2004
Page30f3
If a variance from the Board of Adjustment is nocossary, an additional land use fee of $250 (haH off
typical $500 fGe) would be required. The review would require a public hearing and would ba
completed in an estlmaled timelrame 01 12 weaks.
Please note, separate sign permits would be required.
A handout listing all of the City's Development related fees in attached for )'Our review.
cc, Jennifer Henning
''''')'<1.10 ,km<t,"y rebuild Ir-! CUP. SAH).docl
DATE:
TO:
FROM:
SUBJECT:
CITY OF RENTON
Planning/Building/Public Works
MEMORANDUM
August26,2004
Pre-Appllcati~ No. 04-097
Jason JOrda~niof Planner. x7219
Kennydale Elementary School Rebuild
General: We have completed a preliminary review oj the pre-application for the above-referenced
development proposal. The following comments On dsvelopment and permitting issues are based on
the pre-application submittals made to the City of Renton by the applicant and the codes in effect on
the date of f8visw. The applicant is cautioned that information contained in this summary may be
subject to mod,fication andlor concurrence by offiCial deCision-makers (e.g .• Hearing Examiner. Zo~ing
Administrator, Board of Adjustment, Board of Public Works. and City Council). Review comments may
also need to be ravised based on site planning and other design changes roquired by City staff or
made by the applicant. The applicant is encouraged to review all applicable soctions of the Renton
Municipal Code. The Development Regulations are available for purchase lor $50.00. plus tax, from
the Finance Division on the first floor of City Hall.
Project Proposal: The sublect property is addressed as 1700 NE 28'h Street The proposal is to
demolish the existing school bUilding and its associated structures and replace it With a new
elementary school bUilding. The new structure is proposed to be two stories and would be surrounded
by on-site parking to the south and west and outdoor play fields to the north_ The parking area would
cons,sts of a 70 stall park,ng area with a bus loop on the west s,de of the proposed School and a 48
stall parking area with parent drop off circulation, located on the south side of the faCility (Iront of the
building)_ The applicant has noted that prior to site plan and conditional use permit Submittal, ths
school distfict will be requesting a rezone from R-8 to R-8 (P), in order to increase the bUilding height
aSSOCiated with the project. The school district has also proposed to act as "lead agent" for the SEPA
environmental review portion of the projoct.
Comprehensive Plan Objectives and PolicIes:
Objective LU-KK: Assure adequate land at appropriate locations for fac,],lies which meet the
educational needs of arBa residents
Policy LU-249: Allow schools ,n residential nSlghborhoods which mitigate adverse Impacls to the
surrounding area_
Policy LU-254: Elementary schools should be located near a collector arterial street.
Zoning/Density Requirements: The property is located Within the Residential -8 dwelling umlS por
acre (R-9) zoning designation. However, the applicant has indicated that they will be requesting a
rezone in order to add the"P" suffiX to their zoning designation as a separate application.
The "publiC· deSignation of the site requires additional not~ication when property ownership, use, or
tenant changes take place. This requJfement is not applicable to the current proposal.
Elementary schools wllhin the R-a zone require a Hearing Examiner Conditional Use Pefmit in
addition to Hearing Examiner Site Plan approval.
Devl!lopment StandardS: Although the prolect is not a reSidential building, the new buildings must
comply With the following applicable development standafds:
~:~;::::~:~~;:J~:;~:"i;:~;;::~:~:~::f:'; :;;!::~::::!~i:i:'::5% of the lol area or I tiThe Information
struClI.IlCs proposed; therefore,
Kennydale Elementary Scho •. ,ebuild Pre-Application Meeting
File No. Pro·04·097
August 26, 2004
Page 2 of 2
stall was not able to verify the project's compliance with lot coverage limitations. The site plan
will need to Include the ground floor square footage of all structures, including covered play areas, with
the formallalld usa application.
Building height IS restricted to 30 leet and 2·storios lor primary structures and 15 feet and one·story lor
accessory buildings. The main school building and all attached accessory structures would be limited
to two·stories within a 31)-foot height. AllY dstached structures must remain below 15 feet in height.
BuUdlng elevatlons were not provided with the review materials for staff's verlficatioll oflh&
proposed building heights. If the rezone to Include B "P" suffix Is approved, building height
can be Increased to 15 feet abova the maximum pt!rmitted height within Ihe zone (30 + 15 =45).
The project drawings did not include bUilding height elevations.
II the rezone IS not approved and if additional h&ight above the 30·100tlimitatlon were requested.
approval of a height variance from the Board of Adjuslment WOuld be necessary. The applicant would
be required to demonstrate the satisfaction of specified variance criteria with the project application.
Setbacks -Th& required setbacks In the R·8lOne are 20 feet in th& front and rear yards. A 5--foot
setback is required lor interior side yards and a 15·foot setback is required lor side yards along
streets. The proposal appears to meet these requir&ments, with the possible exception 01 the eastern
most portion of the building adjacent to Kennewick Place. Staff could not verify If the 15·loot side
yard along a street setback was being achl&ved.
AccessJParklng: The project would create new entrances to the site. including three driveways ofl 01
NE 28,h Place to access the parking and bus loading areas. In addition to the proposed vehicular
access paints. the project includes a pedestrian path connection to NE 28'" Slreet, Kennewick Place
and NE 30" Street.
The project is required to provide a minimum of 1 oll·slreet parking space per employee as well as 1
off·street space of sulficient siz& for each bus kept at the school. Standard stall dimensionS are 91eet
by 20 fsel. A maximum of 30% of the parking spaces are allowed to be compact stalls (81-2 feet by 16
feet) provided they are clearly marked. Ninety d69ree (90°) parking stalls are required to have a
minimum aisle width of 24 feet and 80 degree (60') parking stalls are required to have a minimum
aisle width of 17 feet. In addition. on& ADA stall is r&quimd for every 25 parking spaces provided on
the site.
Based on th& slle plan provided, staff could nol determine Ih& approprlat& number of required
parking stalls and the slt& plan did not note any ADA stalls. In addition, the site plan must
indicate Ihe full length 01 the standard stalls and identify if ov&rhang areas am proposed.
Parking areas exceeding 10.000 square I&et in size must landscape a mimmum of 5% of the parking
area in a manner that reduces the barren appearance of the lot. All landscaped areas, perimeter and
interior, must be a minimum width of 6 feet and include underground irrigation systems.
Permit Requirements: II th& n&w facility Is over 10% larger then the existing facility, then the
proposal would require a Hearing Examiner Condition Use PermIt. However, flthe new school
facility Is less than 10% larger than the exIsting fadilty, Ihen only Hearing Examiner Site Plan
review and EnvIronmental (SEPA) Review would be required. It Is understood that th& R&nton
School District would act as the "Lead Agent" for the envIronmental SEPA review. The
remaining permils would be reViewed concurrently in an estimated timeframe of 8 to 8 weeks. The
application fee for joint land use applications is full price lor the most expensive permit (Site Plan at
$2,000) and hall off any subsequent permits (SI.000 for the Conditional US8 Permit). In addition.
$0.37 per mailing label would be required for notification to surrounding property owners. Detailed
Information regarding the land use application submittal is provided in the attached handouts.
It the Renton School District performs lIs Own SEPA review, the City must receive all appropriate
documentation Within a timely matter (e.g., Notice of Application and Comment Periods, SEPA
Determination and Appeals Periods). At this pOint, the SEPA Ihreshold determination must include a
Traflic Mitigation Fe& ($75 per new trip) and Fire Mitigation Fee ($0.52 per additional square foot) 101
the portion of the new structur& that Is greater in size than Ihe previous facility.
DATE:
TO:
FROM:
SUBJECT:
CITY OF RENTON
PLANNING/BUILDING/PUBLIC WORKS
MEMORANDUM
August 24, 2004 ~
Jason Jordan
Ameta H. X7298
KENNYDALE ELEMENTARY RECONSTRUCTION
1700 NE 28TH ST
PRE04-097
The following comments on development and permitting is~ucs are based on the
pre-application submittals made to the City of Rcnton by the applicant. The
appliunt is cautioned that information contained in this summary may be subject
to modification and/or concurrence by official deci~ion makers (e.g. Hearing
Examiner, Boards of Adjustment, Board of Public Works and City Council).
Review comments may also need to be rcvised based on site planning and other
design changes required by the City or made by tbe applicant.
I have reviewed the preapplieation material submitted Oll this project located in Ihe vicinity ofNE
28lh St and Kenuewick PI NE located ill Seclion 32, Twp. 24N, Rng. 5 E and ha,e the following
comments.
• This site i5 served by the City of Renton water. It is located in 435 Water Pressure Zone.
The ,!ati~ pressure is approximately 80 psi at the street level. Dumeslic meters that cxoeed
80 p.i are required to install a pressure reducing device.
• There is an existing 12" watermaia in NE 28th St and an existing 12" watermain in
Kennewick PI NE. The available flow in the 12" at the intersection of NE 28th St and
Kennewiok PI NE is 4000 GPM
• There is an existing 6" watcrmain located on Ihe site which needs to be abandoned and/or
relocated by this project due to the proposed location of the new building as shown on
applicant's site plan_
• Per the City ofRcnton Fire Marshall the preliminary fire flow is 2500 GPM including the use
of an automatic fire sprinkler system. A total of three fire hydranl£ will be required wilh the
location to be determined by the Fire MarshalL
• Any new construction mU.'t have ()ne fire hydrant capable of delivering a minimum of 1,000
GPM and shall be located within 150 feet ()f Ihc structure and additional hydrants (also
oapable of delivering a minimum of 1,000 (]PM) within 300 feet of the structure. This
dislance is measured along the travel routc. The number of additional hydrants required is
dependent on the calculated lireflow of the new building hence if the fire flow remains at
2500 Gl'M the project will require two additional hydrants.
• Water System Developmeut Charges of$0.213 p~'T square foot gross area may be required if
not previously paid_ The Development Charges are collected as part of the construction
permit. Please note lhat any parcel that eUITCntly has water and or sewer service is eligible
CITY OF RENTON
FIRE PREVENTION BUREAU
MEMORANDUM
DATE: August 24, 2004
TO: Jason Jordon, Senior Planner
FROM: Corey Thomas, Plans Review Inspector
SUBJECT: Preliminary Comments for Kennydale Elementary
1. The preliminary fire flow is 2,500 gpm. One fire hydrant is required within 150-fee\ of
the structure and two secondal)' hydrants are required within 300-feet of the
structure. Any existing fire hydrants used to meet this requirement must meet current
specifications including 5-inch storz fittings. Available fire flow for this location is
4,000 gpm.
2. The fire mitigation fees are applicable at the rate of $0.52 per square foot of building
area. This fee is paid at time of building permil issuance. Credit is given for floor area
removed from the sile, Applicant to provide floor area of removed building.
3.
4.
CT·o'
kene'em
Separate plans and permits are required for th,e installation of Jhff required fire
sprinkler and fire alarm syslems. WO ",f,,~> ftF r~iV\..-r..d,
Fire department access roads are required to within 150-feel of all points on the
buildings. Roads shall be a minimum 20-foot wide paved roadway with approved
turn arounds. Access roads shall meet minimum 25-feet inside and 45-feet outside
turning radius.
K~nn)'d"lc Elcm.nt.ry Scho,," .. Cdp
for a prorated system development charge. Your project will be r.vicw~<1 to determine how
much redevelopment credit applies.
• This site is located in the Aqua Protection Zone 2.
Banitary Sewc;:r;
• There is an existing 12·' sanitary sewer main in NE 28th st.
• 1\ sanililly Sewer main extensions will not be required to be installed by this project.
• The project will be requir~d to cap the existing sidesewer connection at the property line "nd
install a new 6" sidesewer from the main in NE 28th St to the site.
• The "pplicant needs to submit a sanitary sewer plan <howing how they will apply sewer
service to any new structures.
• Any use in the building (such as a kitchen or cafeteria) subject to oils or grease shall require
the installation of a grease inten;eptor or oil/water separator as determ;ned at the time of plan
review.
• System Development Charges (SDC) are $0.126 per square foot. These fees are collected at
the time a construction permit is j&,ucd.
Storm Drainage
• 1\ conc.plllal storm drainage repon and plan is required to be submitted with the formal
application for the project.
• This project is located in the May Creek Drainage Basin. 1\ conceplual drainage plan and
report is rcquir~d with the formal application for a commercial project. A drain"ge control
plan designed per the 19-98 King County Surface Water Manual Level 2 is required for this
project as a SEPA condition.
• There are storm drainage facilities located ;n NE 28th SI and in Kennewick PI NE.
• TIle Surface Water SDC fees of $0.249 (but not less than $715) per square foot of new
impervious area may be required ifnot previously paid.
• Conslruction ofa building will trigger a separate review.
&J.uif!<[;
."1 he site is located in Aquifer Protection Zone 2 and may be suhject to additional requirements
per City codc. ConslnIctcd secondary containmcnt may be required if more than 20 gallons of
regulated hazardous makrials will be present at the new facility (RMC 4-3-050H2d(i)). 1\ fill
SOurce statement (RMC 4-4-0601A) is required if more than 100 cubic yards offill material will
Kcnnydate Etementary SCI.~ _. Preap.
be imported to the project site. Construction Activity Standards (RMC 4-4-030C7) shall be
followed if durin&. construction, more than 20 gallons of hazardous materials will be stored on site
or vehicles will be fueled on site. Surface Water Management Standards (RMC 4-6·030E2 and
3)-Diofiltcrs, stonnwa!er conveyanoe, and water qnality ponds may require a groundwater
protection liner. Impervious surfaces shall be provided for areas subject to vehicular use of
storage of chemicals. This is not intended to be a complete list of the APA requirements nor does
this inf"nnation substitute for the ful! ordinance, it is "nly intended t" guide the applicantt" the
City of Renton eode book.
General:
.AIl required utility; drainage and street improvements will require separate piau submittals
prepared according to City of Renton drafting standards by a licensed Civil Engineer.
All plans shall be tied to a minimum "ftwo of the City ofRentou Horizontal and Venical Control
Network .
• Permit application must include an itemized eost estimate for these improvements. The fee for
review and in.pcction of these improvements is 5% of the first $100,000 of the estimated
construction costs; 4% of anything over $100,000 but less than $200,000, an<l 3% of anything
over $200,000. Half of the fee must be paid upon applic.tion for buitding amI construction
permits, and the remainder when the permits are issued. There may be additional fees for water
service related expenses. See Drafting Standards.
<c. K,y,," K.
EVELOPMENT SERVICES DIVISION
WAIVER OF SUBMITTAL REQUIREMENTS
FOR LAND USE APPLICATIONS
This requirement may be waived by:
1. Property Servicas Section PROJECT NAME: ___________ _
2. PubliC Works Plan Review Section
3. BUilding Section DATE: ________ _
4 Development Planning Section
Q:\WEB\PWlDEVSERVlFormslPlanninglwaiver .xls
DEVELOPMENT SERVICES DIV'SIO,
WAIVER OF SUBMITTAL REQUIREMENTS
FOR LAND USE APPLICATIONS
This requirement may be waived by:
1. Property Services Section
2. Public Works Plan Review Sectioo
3. Building Sedioo
4. Development Planning Section
Q:IWEBIPWlDEVSERVlFormsIPlanninglwailfer.xls
Augw;, 4, 2()04
r."utten Nicolay
Devdopmcfl' Services Divi:;ion
City of R~moll
1055 S(}uth Gr;tdy Way
Renton, WA 98005
Project.
Subject:
DeaiI.aureen:
Kennydale Elementary School Repbctment, 203264.30
P,eapplication Meeting
Wiili this lerte.I, the Renton School District requests a pteappliC<loon meeting
with C,t}' smff on the "bove refetenced project lbe Di.mct proposes to
demohsh the existing Kcnnydale Flementl[y Schoo~ located "t 1iOO N£ 28'"
Strce •• and to con"truct a ne", elementary .chool On the ,arne site. The new
school ",ill be two stories. ", shown on the enclo.cd conceptual plall, floor pbn
and elevations, !'leee" to the slIe will continue to be from NE 2R'" Street
The site is about 6.6 acres and tchovel), fbt_ EKisting structures include the main
school bWldio.g, gymnasitun and two pO!lable claSSTOoms. All existing st(Ucmrcs ,,,ill be removed, The eKisling ball fidd will remain.
Zoning on the site i. currently R-8 In adv"ance of • .,bmlttal for condmonal use
and sik plan apprm-al and limIer separate applicanun, the District is requesting a
rezone to R-8(P) to allow greater f1e;<lbiliry in build)!!g height. The District has
also subrnimd a request (Q vacate the 12·foot right-of-way that is aligned nurth-
south through the approximate center of the sitc_
Applicanon for land use approvals is anncipnted to occut in N'ovembeI '"
December of2004, with con,trUction occurring frum June 2005 through July
2006.
PIc .. e address the following areaS as patt of the preapplic.tion r",,;cw:
• The School District will be lead agency for SEPA rel,iew of the ptoject.
The District anticipates clo,c coordination with the CIty dunng the SEP A
proce$' including identification of mitigation m~"''Ure" If the City ha.
purtiLular SEPA j"ues that are Idcntifiable at the mmet, II wuuld be helpful
fur the,e to be discussed at the preapp1ication meding
:116D:t __ i
s"'''' l2~
",tIIa W'!IB1i:J1.11)1
2lJmm2S ~
~'1I11'111 ,.
-•• 00
),!. La"<e" t.:k"h)'
.~"gu" 4. 2004
,~,
• D1SCU:SS the general schedule fm land use and building permit review with
the District as lead agency, lflcluding the timing ofDimict SEPA review
with th~ City', re ... iew process. Also, please indicate any issue. relative to
submittal of d,e land usc .pplication< prior to adoption of the re7.0n~,
• Addte.s, ony re~em or anticipatod code or Comprehensive Plan
amendmems that may affect the propos,,1.
• According to rhe District's ,eo"iew of me City's sensitive ar~a' maps, no
sensim-e areas occur on or in the immediate ,-idnity of the site. Please
indicate whether the Clty 15 a\\'a!e of .ny sensitivc ~rc~, m sensiti,'e are.
reguhtions that may affect rcdevelopment of the school.
• We understand that the City will provide thc list of surrounding pwpc¢)'·
owners and mailing labds. Please confirm that this is the case,
• Undct wnat circumstances can tnc reqillrement for a TlA be "'llivctP
Indicate any fireas of specific COncern tha, should be addressed in the
traffic srudy, if required,
• Indicate anticipated reqUIrements for dedication or improvements to
surrounding public rights-of-w.y,
• IndiL"l.te any anncipated requirements for utility improvements.
• DIScuss storm water mfinagement requirements.
• If appropriate, waive the requiroment for flood hazard data in the submittal
package.
• Inmcate any fu:c issues apparent from thc conceptual slle plan.
• Indicatc whether there are any known fireflow issues at the site.
• Indicate any other areas of general or specific concerns th.t should be
addressed in the submittal or supporting documenmnon.
For scheduling i.sues, or if you have any questions or require additional
lflformation priOt to me preapplicacion meeciog, please do not hesitate to contact
me at (206) 267·2425.
Owen J. Dennison, AICP
OD/CH
Endo,ures
C. Rick Stracke, Renton School District
Jack Connell, Renton School District
Calvin G.saway, Greene-Gasaway Architects
Torn Marshfill, McGr:tnahan Architects
lYuchoc11uttennann, AHBL
Facilities & Operations Center
OFFICE OFTHE EXECUTIVE DIRECTOR
Telephone: (425)204-4403 Fax: (425) 2()4-4476
November 4, 2004
Emironmcntal Review ('ommillee
SEPA Responsible Authority
City of Renton
1055 South Grady \Vay
Rent()n, WA 9g(}()5
Project: Kennydale Elementary School Replacement
Subject: SEPA Lead Agency
Dear Committee Members:
DEVELOPMENT PLANNING
CITY OF RENTON
NOV 0 8 100\
RECEIVED
This letter is 10 inform you lhat the R~n[(m School District will be acting as lead agency fbr
rev;"", of tbe above-referenced pmje<.:t, as provided by the Washington Administrative Code
(WAC) 197-11-926. The WAC grants authority to subdivIsions of/he state, includmg school
dislricts, to assume lead agency ,lalUS ["r prujecLS implement~d by the district. In accordance
with the requirements of State .tatute, the .chool district has adopted policies and procedures
governing the SEI'A process for district project •.
The SEPA checkli,t will be issued on or about Nm'emher 5, 2004. The City of Renton will
receive a copy of the checklist and threshold determination for agency review. Our project
team is avaIlable to answer any questions that may aris~. Please contact OWC1l Denmson of
AHBI., Inc. at (206) 267-2425 if you need any additional information.
'ck Stracke
Execuli~e Director
facilities & Operations
c: Jennifer Henning, City of Renton Development ServICes
Calvin Ga~a"ay, Greene-Ga~a"ay Architects, PLLC.
Owen Dennison, AllR!., Inc.
1220 North 4th S'reel, Renlon, Wa>hinglon 98055
NOTICE Q)' SEPA CO~SVLTATIO:\'
DEVELOPMENT PLANNINL. CITY OF f'.ENTON
NOV 6 8 200\
RECEIVED
The Renton School District has issued the SEPA Checkli"t and associated document> for comment I"ior
to issuing a threshold determinalion The Sf!' A review is associate,] 'Wilh the proposed developmenl of a
new elementary school to replace the ex!>ting Kennydale Elementary SchooL
Project :'lame: Kennydale Ekmentary School Repbcemem
Name of Applicant: Renton School Dlstricl
Notice of SEPA Con.ultation posted: No,ember 5, 2004
Site Lucation: The projecl site IS located in thc Southea,t and Southwest Quaners of Section 32,
'fownship 24 North, Range 5 East, W.M., in the City of Renton, King County, Washington, and !S
bounded by 1-405. NE 30tb Sireet, Kenncwick Place NE, and "E 28th Strcct. King County parcel
numhers are 334210-3310, 334210-3350, 334210-3355. 334210_3356, 334210_3357, and 334210·3358.
The site 18 addre"ed as 1700 NE 28th Street.
Project Delcription: The Renton School Di,trict is proposing to demolish ail bUIldings tbat comprise
th~ exi,tlng Kennydale Elementary School and to construct a new elcmentary school on the same 6.73
acre ,ite. Thc proposed approximately 61,862 square foot facility IS designed t(} accommodate
appro"nlately ~50 elementary students per year and employ 60 teacher" admini.trators, and support
staff. Site access w]il continue to bc from NE 281h Street and separate acccsseS w]ll bc prov]ded for the
school bnses/staff parking area and the student drop-{]ffivlsitor parking area. Grading and removal of
eXlshng lawn and lan<k<caping will OCCur in areas propo,ed for the building, aCCeSS. parking, playgrounds,
and loading, The majority of the existing IUrf play ficids and some trees along th" perimeter of the site
will be preserved
Roque>ted AI'l'ro>als: SFYA detennination hy thc Renton School D1Stnct; Condltional U,e perm]t, Sitc
Plan approval, Buildmg and Grading Permits from the City "r Renton; NPllES from the Washington
Staw Departmc'Ilt of Ecology.
Identification of Exi~tlng Environmental Documents: S]tc Survey by ES.\1 Consulting Engineers,
LLC, May 2004; Subsurfac~ ExplOl'atlOn, Geolog-ic Hazard., and Preliminary Geotechnical Engineering
!{eport by Associated Earth Sciences, Inc" October 2003; SErA Checklist by ARBL, Inc, October 2004;
2003 A,bestos Hazard Emergency Response Aet (A.H.E.R.A) Re-In'pcction Report by NOWicki &
As,ocwtes, Inc., February 2004; Em'ironmental Sit" Assessment by MOl'.e Environmental, Inc" August
2004: Arscnic and Lead in Soil Assessment by Morse Environmental, Inc., Octobcr 2004; TraffiC
Generation An"lysi, by The TransPQ Group, Inc" September 2004: Ovil cngineenng pions prepared by
Coughhn P0l1er Lundeen, mduding grading and SHc plan." a Technical Infonnation Report, and a
Temporary Erosion and Sediment Control (TESC) plan. Copies of the documents pertaining to this
SEPA consultalion are available for review dunn£ regular busmess hours at the Renton S,hool DlStrict
hlc]lit'".\ and Operations Offic~ at 1220 North 4th Street, Renton, WA.
SclLool District Contact: Mr, Rick Stracke
Executive D]reclOr, i'aCllille3 & Operation,
Renton School District
1220 North 4']· Street
Renton, W A 98055
PIC3"e submit your "rille" comments by 5;00 p.m., November 19, 2004, to Nick Stmek. at the
addre", ahove.
DEVELOPMENT PlANNING
ClrvOFRENroN
Nova 8 100\
RECEIVED
ENVIRONMENTAL CHECKLIST
{o.
KENNYDALE ELEMENTARY SCHOOL
OClOber 2004
Prepaced For:
Jack Coonell, Project Manager
Facilities and Operations
Renton School DiSlrict No. 403
U20 North Fourth Street
Rcnton, WA 98055
Prepared By:
Owen Dennison, AICP,
Projcct Planner
AHBL
Reviewed By:
Michael Kanermann, AICP,
Associate
AHBL
203264.30
State Environmental Policy Act (SEPA)
Final ENVIRONMENTAL CHECKLIST
Kennydale Elementary School Replacement
A. BACKGROUND
1. Name of proposed project, II applicable:
Kennydale Elementary School Replacement
2. Name of applicant.
Renton School District #403
3. Address and phone number of applicant and contact person:
Apptlcant:
Renton School District #403
Contact: Mr. Rick Stracke, Executive Director
Facitities and Operations
1220 North 4th Street
Renton, WA 98055
Ph: (425) 204·4403
Fax: (425) 204-4476
E-mail: rstracke@renton.wednet.edu
Agenl;
Catvin Gasaway
Greene·Gasaway Architects, PLLC
PO Box 4158
Federal Way, WA 98063-4158
Ph: (253) 941·4937
Fax: (253) 941-5122
E-mail: Calv.n@ggarch.tecls.com
SEPA Contacl:
Owen Dennison
AHBL, Inc.
316 OCCidental Avenue S., Ste. 320
Seattle, WA 98104
Ph: (206) 267-2425
Fax: (206) 267-2425
E-mail: odenmSOfl@ahbl.com
4. Date checklist prepared:
October 25, 2004
5 Agency requesting checklist:
Renton School District #403
Proposed timing or schedule (including phasing, if applicable):
Demolition and removal of eKlsting bUildings and Installation of perimeter erosIon control
measures are anticipated to begin in May 2005. Grading and construction is anticipated to occur
from June 2005 through July 2006.
Do you have any plans for future additions, expansion. or further activity related to or connected
with thIs proposal? If yes, explain.
8. List any environmental information you know about that has been prepared, or will be prepared,
directly related to this proposal.
• Site survey. prepared by ESM Consulting Engine<lrs, LLC., May 19. 2004
• Subsurface Exploration. Geologic Hazards, and preliminary Geotechnical Engineering
Report. prepared by Associated Earth Sciences, Inc .. October 201)3
• SEPA checklist, prepared by AHBL, Inc. dated September 28, 2004
• 2003 Asbestos Hazard Emergency Response Act (A.H.E.RA) Re-Inspection Report,
prepared by Nowicki & Associates, Inc., February 20. 2004.
• Environmental Sile Assessment. prepared by Morse Environmental. Inc., August 2004.
• Arsenic and Lead in Soil Assessment, prepared by Morse Environmental, Inc. October
2004.
• Traffic Generation Analysis prepared by The Transpo Group, Inc .• September 17, 2004
• Civil plans prepared by Coughlin Porter Lundeen including grading and site plans. a
Technicat Information Report, including a downstream analYSIS. and a Temporary Erosion
and Sediment Control (TESC) plan.
9 Do you know whether applications are pending for govemmental approvals of other proposals
directly affectIng the property covered by your proposal? ff yes, explain.
There are two pending approvals from the City of Renton:
• Rezone from R-S to R-S(P) addressed under separate SEPA review
• Vacation of the 12-[oot wide right-of-way extending generally north-south through the s~e.
RIght-of-way vacations are categorically exempt from SEPA review (WAC 197-1 1-800(2))
10. list any !pvernmental approvals or permits that Will be needed for your proposal, If known.
• SEPA determination by the Renton School District
• Conditional Use Perm~, Site Plan approval, Building and Grading Permits from the City of
Renton
• NPDES from the Washington State Department of Ecology
11. Give brief, complete description of your proposal, including the proposed uses and the size of the
project and site.
The Renton School District is proposing to demolish all buildings that comprise the existing
Kennydale Elementary School and to construct a new elementary school on the same 6.73 acre
site. The proposed approximately 61,662 square foot facility is designed to accommodate
approximately 650 elementary students per year and employ 60 teachers, adminIstrators. and
support staff.
Site access will continue to be from NE 28'h Street and separate accesses will be provided for the
school buses/staff parking area and the student drop-off/visitor parking area. Grading and
removal of eXisting lawn and landscaping Will occur in areas proposed tor the building. access.
Kenoydal. Elemeotary School
Floal SEPA Cl>e<kH't
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2
parking, playgrounds, and loading, The majOrity 01 Ihe eXlsllng turf play lields and soma traes
along the perimeter of the site will be preserved.
12, Location of Ihe proposal. Give sufficient information for a person to understand !he precise
location of your proposed project. including a street address, if any, and section, township, and
range If known. If a proposal would occur over a range of area, provide the range or boundaries
of the site(s), Provide a legal description, SIte plan, vIcinity map, and topographic map, if
reasonably available. While you should submit any plans required by the agency, you are not
required to duplicate maps or detailed plans submitted With any permit applications related to this
checkliSt.
The site is located in the Southeast and Southwest Quarters 01 Section 32, Township 24 North.
Range 5 East, W,M., in the City 01 Renton, King County, Washington, and IS bounded by 1-405.
NE 30"' SUeet. Kennewick Place NE, and NE 28"' Street, King County parcel numbers ara
3342Hl-3310, 334210-3350. 334210-3355, 334210-3356. 334210-3357, and 334210-3358. The
sne is addressed as 1700 NE 28th Street.
K"""yd.Ie Elemontary SO""'"
Fin.1 SEPA C~""k"st
C'lDocL>llenIS .nd SetI;"g'\treecoIWy [)ocum""t'\Coorespoodon""·Ric~, KennyO.lelEnvi"",menlal Cheo, list.doo
3
B. ENVIRONMENTA1. E1.EMENTS
1. EARTH
a. General description of the s~e (circle one): flat. roiling. hilly. steep slopes.
mountalnous.other ______ _
What is tM steepest stope on the site (approximate percent slope?)
There IS a slope of aboLJt 30 percent with a vertical change of abcul 4 feet along
the western site boundary. All other stopes on the site appear to be 10 percent or
less.
What general types of sOils are found on the site (for example. clay, sand, 9"avel.
peat. muck)? If you know the classification of agricultural sOils. specify them and
note any prime farmland.
Site soils are composed of till covered by 2 to 13 Ie€!! rJ weathered tW,
recessional deposit (sandy) soil. eXisting fill or topsoil containing a mixture of silts
and sands. There IS no prime larm land on the site.
d. Are there surtace indications or history rJ unstable SOils in the Immediate vic'lnity?
It So, deSCribe.
e. DeSCribe the purpose, type. and approximate quantities of any jjlfing or grading
proposed. Indicate source of lill.
G lit IS estimated to be 2,000 cubiC yards and fill is esfimated to be 6,000 cubic
yards. Cut will be reused as filion site as allowed by the quality 01 eXC8vated
material. The source 01 imported lill will be" Washington Stale Department of
Transportation approved borrow site.
I. Gould erosion occur as a result of clearing, constructoon, or use? II so, generally
descllbe.
Erosion is possible when the ground is dosturbedlor construction 01
improvements. After those improvements are completed, there will be very little
potential for erosion.
g. About what percent of the site will be C<lvered with impel'.lious surfaces after
project construction (lor example, asphalt or buildings)?
Existing Impel'.lious surfaces On the site currently totals 2.7 acres or waut 40% of
the site. After project C<lnstruction, Impel'.lious surtaces Will total 3.92 acres or
about 58% of the site.
Proposed meaSures to reduce or control erOSion, or other 'Impacts to the earth, if
any:
Recommendations inCluded on Geotechnical Engineering Report. prepared by
Associated Earth Sciences. Inc .. October 2003. will be Implemented to m)t'lgate
erosion potential during Site preparation.
K""")'<Iale EI"memary School
F,n.1 SEPA Chookll'l
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,
2. AIR
Addrtionally, a temporary erosion and sedIment control (TESC) plan will be
submitted to the City for review and will be Implemented during construction. The
intent of the TESC plan is to prevent the transport of sedIment from Ihe site. The
tollowlng minimum TESC measures will be provided: penmeter fiker-fabric
fencing around exposed areaS and cover controls, The plan will meet the
requirements 01 the current King County Surface Water Design Manual as
adopted by the City of Renton.
a. What types of emissions to the air would result trom Ihe proposal (I.e .. dust,
automobile, odors, induSllial wood smoke) during construction and whIm the
project is completed? II any, generally describe and give approximate quantities
it known
Construction and demolition activities at the site may stir up dust particles. The
2003 AHERA Reinspecllon by Nowicki & Associates, Inc., identilies asbestos
containing materials In the existing buildings, These materials must be contained
and appropriately disposed during demol~lon to ensure that no release of
asbestos particles to the air occurs.
Construction vehicles and equipment aTe a potential source of exhaust
emissions. Once the improvements are complete, lhe primary sources of
emiSSions will be automobile, bus, and delivery truck exhaust, water vapor from
condensers, and HVAC un~s and refrigeration units.
Are there any oll·site sources of emission or odor that may affect your proposal?
If so, generally describe,
W~h the exception of motor vehicle exhaust from 1·405 and other adjacent
roadways, there are no off-site sources of emissions or odor that would aUect the
project
c. Proposed measures to reduce or control emissions or other impacts to air, n any:
Site watering witl be used to control dust particles during site grading.
Conslruction vehicles ate typically equipped With factory-Installed mulllers and
spark arrestors that will wntrol excessive em Issions.
DemolillOn and removal of exiting structures and any hazardous materials on the
site willfoltow City, State, and Federal gUidelines.
3. WATER
H, Surface Waler:
t) Is there any surtace water body on or in the immedLate vicinity of the s~e
(including year-round and seasonal streams, saltwater, lakes, ponds, wetlands)?
II yes, describe lype and proVide names. II appropriate, slate what stream or
river it flows into,
According to the City's mapped data, there is an unnamed drainage COurse over
150 feet to the east of the site across KennewiCk Place NE. The drainage
course, a tributary to May Creek, IS Identified as 0293A in the May Creek Basin
Action Plan.
Kenny<lal. Elemonlary School
F",,' SEPA Checkl;$!
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The project is located atong a geographic divide which separates the property into
two drainage basins, both of which ultimately drain to Lake WaShington through
different routes. The western portion of the SLte, approximately 1.2 acres, drains
southwest in a closed pipe system beneath 1·405 toward Lake Washington. The
rema<nder of the site flows via a closed pipe conveyance system to the northeast
where it eventually discharges to May Creek.
The City of Renton has established Levet 2 King County Runoff Time Series
(KCRTS) detention and basic water quality treatment standards lor storm water in
the May CrMk basin. That portion of the project in the west basin will reqUIre
Levell KCRTS detention and basIc waler quality. Drainage improvements for
the project will be designed in accordance with the 1998 King County Surface
Water Design Manual, as adopted by the City of Renton.
Areas generating runoff from the southwest basin witt include bus drop off and
staff parking tot A combined wet/dry pond Is proposed to provide the required
water qualny and runoff control Runoff from the May Creek basin portion 01 the
srte includes a combination of vehicle travel surfaces (parent drop off and visitor
parking) and non·vehicutar surfaces. Runoflfrom drive areas will be cotte<;ted
and conveyed to a stormfllter vaun, which witt provide the basic water quality
reqUIred. Runoff from the remainder of Ihe site as welt as clean runoff
discharging from the stormillter vautt Will be rouled to a betow·grade concrete
detention vault. Conlrolled runoff from the detention vault will discharge 10 Ihe
existing storm system In Kennewick Place NE.
2) Could waste material enter 9round or surtace waters? If so, generally describe.
Appropriate water quality measures consistent with the King County Surtace
Water Design Manual requirements will be Implemented to prevent waste
materials from entering ground or sutiace waters during and after construction.
Proposed measures to reduce Or control surtace. ground, and runoff water
impacts, if any:
Appropriate water quality measures consistent with the King County SutiaC(!
Water Design Manual requirements. as adopted by the City of Renton, Will be
Implemented to prevent waste materials from entering ground or surtace walers
dUring and after construction.
4. PLANTS
a. Check or Circle types 01 vegetation found on the site:
1-de<;iduous tree: alder, maple. aspen. other.P2P..!!r., oak. cher~, catalR!!
_,_ evergreen tree: Ilr, cedar, pine, other
1-shrubs
1-grass
pasture
crop or grain
wei soil plants: cattail, buttercup. bullrush, skunk cabbage, other
water plants: water Illy. eel grass, milfml. other
__ other types of vegetation
Ke""ydale ~1.m"'lary School
F,nal SEPA Cheokllst
C \Doouments a"d Setl,n\lSltleece1\My Docum..,ts\CoorespondeocorR,ci<. KennydalelEnv"onmenra' Coock ';$1 doc
What kind and amount of vegetation wilt be ramoved or altered?
Areas 01 lawn and ornamental plantings witt be removed on preparing the site lor
construction, Mature trees may be preserved, as allowed by the site plan.
partIcularly along the southern and western Site boundaries. Two mature oak
trees on the interior of the site will be removed_
List threatened or endangered species known to be on or near the site,
TO our knowledge. there are no threatened or endangered plant species on or
near the s~e. The site is developed as a public sChool. LMdscaping is urbarl
ornamental and does not include natural habitat.
Proposed landscaping, use of native plants, or other measures to preserve or
enhance vegetation on the stte, H any:
A landscaping plan consistent with City of Renton landscaping requirements will
be submitted to the City lor review and approval as part of the project application,
5. ANIMALS
a. Circle any birds and animals which have been observed on or near the site or are
known to be on or near the site:
Birds: hawk, heron, eagle, songbirds, other
Mammals: deer. bear. elk, beaver, other small rodents
Fish: bass, salmon, lrout, herring. shellfish, other
List any threatened or endangered species known to be on or near the site,
To our knowledge, no threatened or endangered animal species are on or near
the site.
Is the site part ot a migration route? If so, explain
The site lies within the Pacific Flyway lor Migratory Birds,
Proposed measures 10 preserve or enhance wlldlile. II any:
N/A
6. ENERGY AND NATURAl RESOURCeS
a, What kinds of energy (electric, natural gas, oil, wood stove, solar) Will ba used to
meet the completed project's energy needs? Describe whether it Will be used for
heating, manufactUring. etc.
ElectriCity will be used for illumination, Natural gas will be used for heating.
Diesel fuel wifl be used for the back·up generator and will be in a new above
ground tank,
Kennydale Elementary ScI!ooI
Final SEPA Checkl151
C-\!)ocumenlS a"" Settlo9SlIreecellMy OocumenISICo"'.5pondenoe_R",,_ K."nyd.'eIE"Vlronme"tal Check ,", doc
8
b. Would your project affect the potential uSe Of solar energy by adjacent
properties? If so, generally descnbe,
Proposed Improvements will not affect the potential use of solar energy by
adjacent properties,
What kinds of energy conse ..... ation features are included in Ihe plans of Ih,s
proposal? List olher proposed measures to reduce or control energy Impacts, if
any:
7. ENVIRONMENTAL HEALTH
a, Are there any environmental health hazards, including exposure to tOXIC
chemicals. riSk of fire and explosion. spil( or hazardous waste that coutd occur as
a result of this proposal? If so. describe_
An Environmental Srte Assessment was conducted by Morse Environmental. Inc., In
August 2004, The only potentiat sources of enVIronmental heanh hazards revealed
by the study were PCBs in the baltast for lluorescent lights and possibly In the
hydraulic lilt of the elevator In the existing structures_ A records search revealed no
environmental hazards In the vicinity of the site_
In response to information from the Washinglon State Department of Ecology
suggesting the potential for arsenic contamination from the former Aserco smeller
in Pierce County. a lead and arsenic analySIS of the srte was performed by Morse
Environmental documented In the Soil Testing Report The results of the stUdy
revealed the site is within the published background levels for arsenic and lead and
does not qualify as a contaminated s~e
The 2003 AHERA Report by Nowicki & ASSOCIates, Inc., identified materials within
the existIng buildings on the sIte containing forms of asbestos
Following demolition and construction, diesel fuel for the back up generator will be
stored on the Site, The capacilyof the fuel storage is less than 50 gallons.
1) Describe special emergency services thai might be required_
The proposed use may require police, fife and medical emergency se ..... ices to the
same level as the existing use.
2) Proposed measures to reduce Or control enVironmental health hazards, if any:
Prior to demolition or removal of elevator equipment hydraulic fluid fram the
elevator and fluorescent light fixtures will be collected for separate disposal from
the typical construction debris. Asbestos·containing materials In the existing
bUIldings will be abated consistent with Oty, State and Federalguideines.
b. Noise
K"nnydal. EI8men'.,;, School
F"",I SEPA Cheokl"l
C'\Documeo" aod Setllngsllfe"".,IMy Oocumenl.\Coo'~'".,..-.;:Ienc._Alok, Kennyd.Ie\EnVironmonlal Chook "SI_doc
,
1) What types of noise exist In the area whi~h may alle~t your project (for example:
traffi~, equipment. operation, other)?
1·405 IS Immediately adjacent to the site on the west. ARhough there are sound
walls along the western property line, the highway generates minor noise impacts
to the site,
2) What types and levels of noise would be created by or associated with the project
on a shorHerm or a long-term basis (for example' tralllc, construction, operation,
other)? Indicate what hours nOise would come trom the site,
Construction activity at the project site Will produce short-term impacts. MaJClmum
noise levels can be expecte<j to range from 57 to 89 dBA (based on a
constru~tion activity noise model. described in NOise trom Construction
EqUipment and Operations, Building Equipment, and Home Appliances). Noise
asSOCiated With construction operations on the site wilt occur roughty between the
hours of 7.00 a.m, to 6:00 p.m., Monday through Friday.
Noise generated by the project fottowing construction will primarily include the
voices of children engaged In outdoor actiVities and sound associated with
automobile, truck and school bus traffic,
3) Proposed measures to reduce or control noise impacts, It any:
Noise impacts assodated w~h the demolition and construction phases of the
projects will be limited in duration and will occur consistent With the work-hour
limitations in 04-04-030 RMC. To mitigate generat noise impacts during the
construction phases, measures such as using and regularly maintaining effi~ient
mufflers and quieting deVices on all construction equipment and vehictes will be
ta~en.
8. LAND AND SHORELINE USE
a. What is the current use of the site and adjacent properties?
Site is develope<j as a public elementary school,
North: Commercial, May Creek habitat area
East Residential
South: ReSidential
West. State highway
b. Has the sne been used for agriculture? If so. describe,
Unknown
c. Describe any structures on the Site,
Main school building, two portable classrooms, gymnasium, covered play arga
d Witt any structures be demolished? If so, what?
All eXisting structures will be demolished or relocated.
Konnyd"e Elemenla'y School
F",al SEPA Ci1ec"'SI
C IDocument, a"d SeOting'\treece'''''y DDC",nentsICoorespOIldence·Rick, KonnydalelEnv"onmemal Chec~ L;S!.Ooo
e. What is the current zoning classification of the site?
R8
f. What IS the current comprehensive ptan designation of the site?
Residential SIngle Family
If applicable, what is the current shoreline master program designation of the
site?
N/A
h, Has any part of the site been classified as an "environmentally sensitive" area? If
so, spec~y,
i. ApprOXimately how many people would reside or work in the completed project?
The school facility IS deSigned to accommodate 650 students_ Approximately 60
teachers. administrators and support staff will work on the site. No one will reside
on the site,
j, ApproXimately how many people woutd the completed project displace?
No people currently reSide on the site_ Therefore, nO displacement Impacts will
occur as a result of the proposal.
Proposed measures to avoid or reduce displacement impacts, it My:
N/A
I. Proposed measures to ensure the proposal is compatible with eXisting and
projected land uses and plans, If any,
The proposal is consistent with the existing Residential Single Family land use
designation and atl applicable poliCY guidance in the City's Comprehensive Plan,
TIle project IS permitted as a conditIonal use under the R·B Zone. The City's
project review and approval process will assign conditions to redevelopment of
the site to ensure that it is consistent With land use plans and regulations,
9. HOUSING
a. ApprOXimately how many unns would be provided, if any? Indicate whether high,
middle, or low-income housing_
None
b. ApprOXimately how many units, It any, would be eliminated? Indicate whether
high, middle, or low-income housing,
N~,
Kennydale Element,,,! Sctlro
Fmal SEPA CheC~lisl
C \D""ument, and Setlln9,ltreece1',My [)oc!lmenls\Coore,pondence-Rlck, Kenny(lalelEnl'iroomontal Check IlsLd""
"
Proposed measures to reduce or control hOUSing Impacts, .1 any:
NfA
10. AESTHETICS
a. What IS the tallest height 01 any proposed structure(s). not mcluding antennas;
what;s the principal eJderior buitdlng material(s) proposed.
The tallest height of the proposed structure will be approx;mately 42 feet. The
exterior materials proposed for the school include brick. metal panels. and glass.
b. What views in the Immediate vicinity would be altered or obstructed?
Existing views from adjacent parcels will be altered by the proposed school
buildings.
Proposed measures to reduce or control aesthetic impacts. if any:
Structures are designed to minimile the appearance of building mass and to be
compatible with the adjacent residential areas.
11. LIGHT AND GLARE
a. What type 01 light or glare will the proposal produce? What time 01 day would ~
mainly occur?
The proposed parking areas may generate glare from reflected sunlight and
automobile headlights. TIle reflected sunlight would occur during daylight hours and
the headlight glare would generally occur alter dark. Light fiJdures included in the
parking lot improvements will generate light after dark.
Could light or glare trom the finished proJsct be a safety halard or interfere with
views?
Light and glare from the finished project will not constitute safety hazards. interfere
with views or affect wildlile.
c. What existing off-srte sources of I;ght or glare may affect your proposal?
None
d. Proposed meaSures to reduce or control light and glare impacls. if any:
Lighting IiJdures will be directed downward to 11m il impacts to adjace~t properties.
12. RECREATION
a. What deSignated and informal recreational opportunities are in the immediate
VICinity?
The slle currently contai~s a baseball field and other play areas.
Kennydal. Elementary S<;hool
F;nal SEPA Checklist
C \Document, and Settl"!JSltree<ellMy [}ooLJm8n<s\Coo'e,,,,,,nde"ce·Rlck. KennydalelEnVlronm6fltal Chock Ilst.doc
b. Would the proposed prolect displace any existing recreational uses? II so.
describe.
Srte design will be reconfigured from the existing building and play area layout 01
the existing school. The existing turf play fields will be slightly smaller. Other
eXisting play areas will be relocated as part of the redevelopment of the site.
Proposed measureS to reduce or rontrol Lmpacts on recreation. including
recreahon opportunities to be provided by the project or applicant. If any:
NlA
13. HISTORIC AND CULTURAL PRESERVATION
a. Are there any places or objects listed 00. or proposed for. national state, or local
preservation regLslers known to be on or nexl to the site? II so, generally
describe.
None known
Generally describe any landmarks or evidence of h<stonc, archaeological.
scienhl,c, or cultural Importance known to be on or next to the site.
None known
Proposed measureS to reduce or control impacts. if any:
If culturally signdLcant objects are found during sile work. the Washington State
Office of Archaeology and Historic Preservation Will be notified.
14. TRANSPORTATION
a. Identify public streets and highways serving the site, and descllbe proposed
access to the existing slreet system. Show on site plans. If any.
The site is bounded by NE 30"' Street on Ihe north. Kennewick Place NE on the
east. and NE 29th Street on Ihe south. The primary access to the site will
continue to be from NE 28th Street, with one access point for school buses and
staff parking and a second access point lor visitors and student drop-off.
b. Is site currently served by public transit? If not, what is the appro~imate distance
to the nearest tranM stop?
The site is served by METRO routes MT t 1 1 and MT 909 that have stops on
Kennewick Place NE Within ~ mile of the srte.
How many parkLng spaces would the completed project have? How many would
the project eliminate?
ApproXimately 103 par1<ing spaces are proposed. 5 01 which Will be handicap
spaces. There are currently 42 spaces. 2 01 which are designated handicap
spaces.
K",,'ydaLe ELemenl.,y Sol>ool
Ftnol SEPA CIleckh.,
C \Documents and Sell'"9,\lreece1\My DocumentsICoa-respo"donco·Rtcl<. Kennydale\E"V"onme"'.' Chock ItS! doc
Will the proposat require any new roads or streets, or improvements to existing
roads or streets, not including driveways? If so, generally describe (Indicate
whether public or private?
e. Will the project use (or occur in the Immediale vicinity of) water, rail, or air
transportation? If so, generally describe,
The site is not in the immediate vicinity of water, rail, or air transportalion facilities.
f. How many vehicular triPS per day would be generated by the completed project?
If known, Indicate when peak votumes woutd occur,
A traffic generation analysis was prepared by The Transpo Group_ The analYSIS
calculated potential new AM and PM peak period trips generated by the project
based on the increase in square footage over the existing school and based on the
potential increase In students from the existing attendance to a iLJIure attendance
with the proposed school at lull capacity.
penod Increase:
Project trip generation estimate based on number 01 students:
AM peak period increase: 82 trips
School PM peak period increase: 55 trips
AM peak period is a one-hour period typically occurring between 7:00 end 9:00
AM
School PM peak period is a one-hour penod typically occurring between 2:30 and
4:30 PM
g, Proposed measures to reduce or control transportation impacts. ff any:
The Renton School District will provide transportation mitigation funds consistent
w~h tne Increase In traffic generated by the school per the City's adopted poticies.
15, PUBLIC SERVICES
a. Would the project result in an increased need lor publiC services (for example:
fire protection, police protection. health care. SChools. other)? If so, generatly
deSCribe.
b. Proposed measures to reduce or control direct impacts on public services. if any
N/A
16. UTILITIES
a. Circle utilities currently available at the s~e: electricity. natural gas, ~,
refuse service, telephone, sanitary sewer, septic system, other.
Konnydal. ElomonlaIy School
F,nOI SEPA Checki'"
C \Doc"mOnlS and Sen,ngs\"o"",,'\My DOC<lmOl1i,\Coo""pot><i"nce-RlCk, Kennyd.lo\~nv"onm..,tal Check I,,, "DO
Describe the utilities that are proposed for the project, the utility providing the
service, and the general construction activities on the site or in the immediate
vicinity which might be needed,
Electricity'
Water:
Sewer'
Telephone:
Cable:
Gas:
C. SIGNATURE
Pugst Sound Energy
City of Renton
City of Renton
awes!
AT&T Broadband
Pugel Sound Energy
I. the undersigned, state that to the best of my knowledge the above InfonTIation IS true
and complete_ It ,s underslood that the lead agency may wrthdraw any declaration of non·
sign~lcance that it might issue in reliance upon this chedlist should there be any wilHul
misrepresentation or willful lack of lull disclosure on my part.
Proponent: ,
Name Printed' Jaek onnell Facilities Pro-ect Mana er
Dale:
Renton School District Environmental Checklist
Konnydal. ElomOflta'l' School
Final SEPA Cheo"'"
C \Doc""""" and Set1lngs\tr<>eceIIMy Documen,s\Coor.'pOnde,,""_Rlck, Kenfiydale\£nvlrcnmenlal Chook IlStdoc
Kennydale Elementary School Replacement
Landscape Analysis, Lot Coverage, and Parking Anal~'sis
Square foolage of Ihe sile and building footprint are as follows,
•
•
•
Exi,tlng ,ilC 'quare footage" 2R~,121 sf or 6.6+ .cres.
Footprim of.lI ",istinl~ blwillngs i, 33,985 ,f,
Footprm[ of all propo,ed b\,iid.ing' i, 42,232 ,f,
Square footage of exisling and proposed impervious surFace areas is as follows,
•
•
E""Ung "Iulle footago of impe,",~ons surf.ce " 121,010 ,f or 2.778 aero,.
Pmpmed 'quare foolOge of 1mPCrvlOU' mcrae." 14.'1,312 ,f or 3-29 .eres.
Square footage of each individual bUilding and use is as follows,
•
•
Ex"tillg hllllding firs! 1100r Ort'a i, 27,095 ,f; ,econd Aoor" 19,7(>0 ,f; co"e~ed pl.y or" i,
6,890 ,f for a total of 5\6~S ,f
Propo,ed builillng [1<" fi"nr" 37,656 ,f; ,ceond II",," l' 2.\7% ,f: covered ploy is 4,576 sf for
" rut; I of 65,%8 ,f,
Percenlage of lot covered by bUildings and structures is as follows,
•
•
Lot C(l1reragc ror "",Sting buJding' and "m,tu!"." is 11.8%.
Lot <m-crage for proposed builillng. and ,inlcturo, i< 14.0'/".
Number of parking spaces required by City code is as follows,
• O"e porking slall i, tCtlu!rcd per ompl,,}'oe. 6(l ,mif "9uols 60 parking spaces [equired,
Number of parking "paces provided is as follows,
•
•
•
•
71 '{lLndord parking 'pace, are pwyidcd.
24 ~ompact parlang 'p.ee, are pro"idea (25% of total).
4 .\0,\ "cc<""iblc parking 'pace< ore p,,,,·,,led,
To!al of all .paces provided is 99,
DimenSions of parking spaces provided are as follows,
• Standard park 109 .poces ore 9' by 20',
• Compact pal'kmg 'p>co, are HS hr 16',
•
•
•
Two B' by 20' "all, ",th an 8' -wide oi,le .
Two 9' by 20' >tall, ""th a .i'-wide aisle .
Square footage of parking 101 landscaping required and provided is as follows,
•
•
•
•
25 'guar. foot per parkmg "all is r.'luired for a total of2,.175 ,f,
Subtotal '''tenor "land parking lot landscapmg pmvided " 4,63 I ,f,
Subtotal pt'rtmt'tcr land<c'ping pto"ded " 7 .37H ,f,
T oral interior and pcrime!c[ landscaping pru"idcd is 12,009 sf,
•
Kenn)'dale Elementary School Replacement
Project Narrative
Project name: Kennydale Elementary School Replacement
Proposed use of sIte am! scope orlhe nn:m()sed de'elopmen! The ,;IC is cllrrently
de\'elope<:! as a public elementary school. The project includes demolishing am!
removing all existiJlg structures Oll the site and constructing a-Ell ,862> square fool, lwo-
story replacement public elementary schoo!. Tile project area is primarily the southern
I "·{}-third,, of the "ite. Most 0 f the existing athletic I'ell.! area at the northern end of the
site will be rdarned. Parking lots and vehicular access points will he reconfigllTcd. 97
parking spaces are proposed, fOllr of which wi!! be handicap spaces, to replace the 42
existing spaces. New utilities will be installed and new stormwater detention and water
'1nalil}' facililies will he constructed. New ontdoor recreation facilities and landscaping
will be installed.
The Renton City ('olineil adopted an ordinance on December 13, 2004, that vacated the
t 2-flllll wide nght -ll f-wu)' ex lendmg sllnlh from th~ '>ll~ frontage on NE 30'h Street
through the center of the site.
Site area: 6.73 acres
Site locatioll: The site is located in the Southeast and Southwest Quartens llfSection 32,
Towllship 24 North, Range 5 East, Vi .M., in the City of Renton, King COUllty,
Washington, and is hounded h} 1-405, NE 30'11 Street, Kennewick Place NE, alld NE 28\h
Street. King COllnty parcel numbers are 334210-3310, 334210-3350,334210-3355,
334210-3356, 334210-3357, and 334210-3358. The site is addressed as 1700 NE 28'"
Street.
Land usc permits rcquircd: Conditional Use Pemlit
Site Plan Approval
Zoning:
• Site:
• Korth:
• East:
Re,>idential8 du/ac wilh Public Sul'lix (R-8(P))"
Commercial Neighborhood (C~), R-8
R~8
• SOllth: R-8
• Wcst: (across 1-405) R-B, CN
*R-8(P) adopted December 20, 2004.
Special site feMures: None. The site is generally nut und fully de, eloped with public
elementary school facilities.
Statement addressing soillvre am! drain~ge conditions: Surface soils on the site mclude
fill, con>lsting of a mixture of sills and sands in a generally loose 10 medillm dense, moist
10 wd condition, and lllo,c to mcdilllll dense sandy recessional outwash. Below the fill
,
Kellll),",le Element.ry Scho~ ,>Joeement
Pmiect ~'rrative
Page 2
am! recessIOnal outwash soils, exploratory bQnngs encountered lill. Rdati vdy high
moisture contents were observed for soil at or ncar the contact bcnvccn the surface soii,
and the underlying till in most exploratory borings. This high moistllre was interpreted to
represent a perched ground wnler condition where downward infiltration of surface water
is impeded by lo'Wer penneabihly, dense till at deplh.
The project is located along a localized geographic divide, \\' hich separates the pro perl y
into two drainage basins, both of which ultimately drain (0 Lake Washington through
different fOlltes. The western portion of the site, approximately 1.2 acres, drains
southwest, in a closed pipe system beneath 1-405 towards Lake Washington. The
remainder of the site flows via a closed pipe conveyance system to the northeast where it
e\entually discharges \0 May Creek.
For plats, indicate the ill1'posed number, density and range of sizes of the new lots: KiA
Access: Vehiclliar access to the site is ~\lrrenny taken from >IE 28til Street. Parking
access and circulation will be reconfigured from the existing, although access will
continuc to be from NE 28til Street. Access points ",ill serve two separated parking lots.
School bus loading and unloading anli stafrparking will be located in the western lot and
student drop-off and vH,ilor parking will be locuted in the ea,lem lot
Proposed off-site improvements: Off-site improvement, will include reconstruction of
sidewalks where curb Cll!>, are rdocaled and land,caping in the right-of-way per City
requirements.
, h
Estimated fair markct value: S 12,000,000
Estimated 9 uuntities and liTe 0 f fill anli excavatlOn materials:
Cut is estimated to be 800 cubic yarlis and fill" estimated to be 7,400 cllhlC yards. ellt
will bc rensed as fill on site as allowed by the quaht)' of excavated materiaL The somce
of imported fill will be u Wa.>hington Slale Department (lrTransporlatioll approved
borrow site.
Number. type and size of any trees to be remo\e\l:
Maples (2): 12", 16"
Oaks (2): 18", 20"
Willow (1): 20S'
Cherry (1): 6"
Tulip trees (3): 8", 16", 24"
Hawthoms (2): Less than 6"
Plums (3): 8",10",14"
Ewlanalion of an v land to he dedicuteli to tho City: ;--.:rIA
,
KcnnyJ.ic Elementar)' Soh",
Project Karrahve
Pago 3
placemenl
Proposed number, size or rall~e of sizes ornew lots and densily: NIA
Any proposed job shacks. sales trailers. amllor model homes:
There will be ajob trailer on the site during; site preparation and cOTI:.\ruclion,
Any proposed modifications being requested:
A modification 10 SeClion 4-6-000F.2_h RMC, Minimum Design Standards for
Residential Access Streets, is requested to wa!\'e the reqUIrement for a six-root sidewalk
along portlOns oflhe NE 2S'il Street site frontage.
The project site is not located within 200 feet of the Black River, Cedar Riyer,
Springbrook Creek, May Creek, or Lake WashingtDn.
Preliminary Draft for City Commem
RENTON SCHOOL DISTRICT
MITIGATED ENVIRONMENTAL
DETERMINATION OF NON-SIGNIFICANCE
Description of
Current Proposal:
Proponent:
Location:
Lcad Agency:
School District
Contact Person:
KENNYDALE ELEMENTARY SCHOOL
The Renton School District is proposing to demolish all buildings that
comprise thc existing Kennydalc EIcmentary School and to construct a
new elementary school on the same 6.73 acre site. The proposed
approximately 61,392 square foot facility is designed to accommodate
approximately 650 elementary students per year and employ 60 teachers,
administrators, and support staff.
Site access will continue to be from NE 28th Street and separate accesses
will be provided for the school buses/staff parking area and the student
drop-offlvisitor parking area. Grading and removal of existing lawn and
landscaping will occur in arcas proposed for the building, access, parkmg,
playgrounds, and loading. The majority of the existing tllrf play fields
and some trees along the perimeter of the site \\·ill be preserved.
Dr. Dolores Gibbons, Sllpcrintendent
Renton School District #403
Kohlwes Education Center
300 SW 7th Street
Renton WA 98055
The site is located in the Southeast and Southwest Quarters of Section 32,
Township 24 North, Range 5 East, W.M., in the CIty of Renton, King
County, Washington, and is bounded by 1-405, NE 30th Street,
Kennewick Place NE, and NE 28th Street. King County parcel numbers
are 334210-3310, 334210-3350, 334210-3355, 334210-3356, 334210-
3357, and 334210-3358. The site is addressed as 1700 NE 281h Street.
Renton School District
Mr. Jack Connell, Facilities Project Manager, Facilities and Opera(ions,
(425) 204-4475.
lJRAFT December 17, 20(!4
Preitminary Draft for City Comment
The Responsible Official of the Renton School District hereby makes the following Findings and
Conclusions based upon revIew of the environmental eheckhst and attachments, other
infomlation on file wIth the Renton School District, and the policies, plans, and regulations
designated by the Renton School District as a basis for the exercise of substantive alllhority under
the Washington State Environmental Policy Act (SEPA) pursuant to the Revised Code of
Washington RCW 43,2IC.06O,
Findings or Fact:
I, The Renton School District will demolish and remove all existing buildings ou the
Kcnnydale Elementary School site and constmct a new 61,392 square foot elementary
school to replace the e:>.isting schooL The facility will accommodate about 650 students
from kindergarten through fifth grade and employ about 60 teachers, administr~tors, and
support staff. The new school will be a two-story stlUCture and will include classrooms,
administrative offices, lunchroom facilities, a common area, gymnasium, and other ancillary
facilities associated with an elementary school. Site access will continue to be from NE
28th Street and separate accesses will be provided for the school buses/staff parking area
and the student drop_off/visitnr parking area. Grading will occur in the areas proposcd for
the building, access, parking, playgrounds, and loading. The majority ofthc existing turf
play fields and some trees along the perimeter of the site will be preserved.
2. The proposed usc of the site as an elementary school is consistent with the City OlRentoll
Comprehensive Plan designation of Residential Single Family and associated R-8 Zoning
classification. Elementary Schools are conditional uses in the R-8 Zone.
3. The sIte i~ surrounded by public rights-of-way, Adjacent land uses are residential to the
south and east, commercial, residential and vacant to the north, and commercial and
residential to thc wcst across 1-405.
4, There will be approximately 800 cubic yards of general cut and 7,400 cubic yards of fill
on the site. CUt wilt be reused as fill on site as allowed by the quality of excavated
material. The source of imported fill will be a \Vashington Statc Department nf
Transportation approvcd borrow site. Construction activities may create a potential for
croslOn.
5. 97 parking spaces are proposcd, 4 of which will be handicap spaces. There are currently 42
spaces, 2 ofwh.ich are designated handicap spaces.
6. A (ramC analysis conducted by The Transpo Group in December 2004 cSllmates an
increase of 210 averJ.ge weekday trips based on the increase in building floor area of
14,500 square feet and the assumptions in (he Instihlte of Transportation Engineers
Manual, 7'h Edition.
2
lJe<embcr 17. 2U04
Prehminary Draft for City Comment
7, The increase in floor area over the existing condition may resl.llt in an increased need for
public fire protection services.
8. The site is located in Zone 2 of the City's Aquif~r Protection Area. No other sensitive
areas arc mapped for the site.
9. The site is currently developed with approximately 2.7 acres of impervious surface. The
proposed site plan includes approximately 3.92 acres of impervious surface, an increase
of 1.22 acres.
10. The project is located along a geographic divide whieh separates the property into two
drainage basins, both of which ultimately drain to Lake Washington throl.lgh different
routes. The western portion of the site, approximately 1.2 acres, drains southwest in a
closed pipe system beneath 1-405 toward Lake Washington. The remainder of the site
flows via a clOSed pipe conveyance system to the northeast where it eventually discharges
to May Creek,
The Cily of Rmlton has established uvcl 2 King COUnty Runoff Time Series (KCRTS)
delention and basic water quality treatmellt standards for stoml water in the May Creek
basin. That portion of the project in the west basin will require Levell KCRTS detention
and basic water quality. Drainage improvements for the projecl are proposed to be
designed in accordance with the 1998 King Counly Surface Water Design Manl.lal, m;
adopted by the City of Renton.
Areas generating runoff from the west basin will include bus drop off and staff parking
lot. A combined wet/dry pond IS proposed to provide the required water quality and
runoff control. Runoff from the May Creek basin pOTtlon of the sitc includes a
combination of vehicle travel surfaces (stl.ldenl drop off and visitor parking) and non-
vehicular surfaces. Runoff from drive areas will bc coHected and conveyed to a
stonTIfitter v~lIlt, which will provide the basic water quality required. Runoff from the
remainder ofthc site as well as clean runoff discharging from the slormfiller vault will be
routed to a below-grade concrete detention vault. Controlled runoff from the detention
vault will discharge to the existing storm system in Kellllewick Place NE.
II. The site is currently connected to the City of Renton publie sewer system and public
water system. There is a 12-ineh water main located in NE 28th Street. A 6-incb main
currently loops through lhe sile and eOllllcets with the 12·inch main in Kennewick Place
N'E. The existing 6 inch loop through the site will be replaced as part of thc project.
There is an existing 12·inch sanitary sewer main located in the NE 28'h Street. No off·
site improvements will be required to proviue water and sewer service to the sileo
12. Sile soils were tested for lead anu arsenic by Yiorse EnvirolllllCntal, Inc., in October 2004.
The sludy showed that lead and arsenic do not exceed publisheu background levels.
3
December 17, 2004
Prehminary Draft for City Comment
13. An Environmental Sitc Assessment was conducted by Morse EnvirolUllental, Inc., in
August 2004. Potential sources of ellvironmental health hazards revealed by the study
were PCBs in the ballast for fluorescent lights and possibly in the hydraulic lift of the
elevator in the existing structures. The 2003 AHERA Report by Nowicki & Associates,
Inc., idenlified materials within the cxisting buildings on the sitc containing forms of
asbcstos.
COJli"CI.USIONS OF THE RESPONSIBLE OFFICIAL
The responsible ofl1cial has determined that the proposal does not havc a probable significant
adverse impact on the environment, and an Environmental Impact Statemcnt (EIS) is not
required under RCW 43.21C.030(2)(c), only if the following conditions are met. This decision
was made aftcr review of a completed environmental checklist, and other infomlation on file
with the Renton School District, and existing regulations. This information is available to the
puhlic on rcqncst. These mitigation measures are rcqnircd as authorized under the Suhstantivc
Authority of SEPA in accordance with the guidelines contained in the Renton School District
Rules and shall be implemented by thc applicant.
Mitigation Measures:
Thc applicant shall:
1. Traffic Impact Mitigation:
The applicant shall provide traffic impact mitigation fees of S75 per additional trip
generated by the project. The fee shall be calculated on the increase in floor area over the
total of existing noor area of structures on the sitc and shall be based on the Institute of
Transportation Engineers Trip Generation Manual, 7'h Edition.
2, Fire Impact Mitigation:
The applicant shall provide fire impact mitigation fees of SO. 52 per additional square foot
of floor area.
3. Environmental Health and Energy Miligation:
Hydraulic fluid from the elevator, fluorescenl lighl fixlures and asbestos·containing
materials shall be collected and disposed of separate from other demolition debris and
consistent with City, State and Federal guidelines and best management practices.
4, Storm Drainage Mitigation:
Drainage improvements shall bc designed in accordance with the 1998 King County
Surface Water Design Manual.
This MDNS is issued under the Washingtoll Admimslrutil'e Code (\VAC) 197,11,340(2); the
lead agency will not act on thIS proposal for 14 days from the date of issuance. Only written
comments will be accepted and must be submilted by 5:00 p.m. on January XX 2005, to Mr.
4
December 17. 2004
Prchminary Draft for City Comment
Rick Stracke, Executive Director, Facilities and Operations, Rcntoll School Dislrict, 1220 North
4th Street, Renton, W A 98055-1539.
Unless modified by the Renton School District, this determinmion will become final following
the above comment deadline. There is no agency appeal under Renton School District SEPA
policies.
Responsible Official: Mr. Rick Siracke, Executive Director, Facilities and Operations Date
Lead Agency: Renton School District
1220 North 4th Street
Renton, WA 98055-1539
(425) 204-4403
Date of Issue: December XX, 2004
Comment Deadline: January XX, 2005
The issuance orthis Determination ofNonsignilicancc does not constitute project approval. The
applicant must comply Wilh all other applicable requirements before receiving construction
permits and/or approvals.
5
Deoember 17, 2004
,
Kenn)'dale Elementary School Replacement
Conditional Use Justification
A. Cllmprehensi\'e Plan: The proposed use shall be compatible with the general
purpose, goals, obje<:tives and standards for the comprehensive plan, the zoning
ordinance and any other plan, program, map or ordinance (lfthe City ofRentoll,
Response. The construction 01-a new elementary school raeility on the Kennydale
Elementary School site is eonsi:;tent and compatible with the pulicy direction in the
City's 2004 Comprehensive Plan, zoning regulations, and other known plans and
programs.
CO'MPREHENSlVE PLA."!
The Renton Comprehensive Plan desi6'llates the site as Residential Single Family. Thc
rollowing goals, objecti'-es, and policies from the Land Use and Community Design
Elements of the Comprehensive Plan are applicable to the proposed project.
Land Use Element
Objective LU-V: Assure adequate land und infrastnlcture at approprwte locations for
developmellt and expwtsion of/anlitu!", to sen,'e Ihe educational needs 0/ are" residellls
and prorect adjacent useS /mm impacts of these mOre intensive uses.
The proposal is consistent with Objective LU-V by U:;lI1g an existing clementary school
site and providing increased capacity to accommodate projected service demand. The
site and the school building are designed to integrate with the residential ncighborhood
context and to minimlle the visual impact on adjacent less intcnsive uses.
Policy LU-96. Schools in residcmial neighborhoods should consider mitlgatmg m/VCrse
impacts to the surrounding area in site planning alld operations.
As noted. parking and access are rooe'l!:!;ncd from the exi,ting configuration to reduce
impacts to the surrounding residcntial streets. The placemcnt of the building be(",ecn the
residential area to the south and the active outdoor recreation arcas on the north will
bufTer the residcntial areas from 'ludent activity noise. The huilding will have pitched
roofs to mimmize the visual massing or the building.
Policy LU-100. Elementary schools ShOldd be loealed near a collector arterial sireer.
A location near a collector arterial discourages tramc on residential streets. Although
Kennydale Elementary School slte lS not located ~ear a collector arterial. the site is
adjacent to two minor arterials. Kennewick Place NE on thc cast and NE 30Lh Street on
the tlortb, Kennewick Place NE provides a conncctioll from the access points on NE 28th
Street to otber portwns oftbe allelldanec area,
,
Kellnyda[c Elcmclllary Sellool
Conditional U,e Justification
Policy LV-151. Maximum heighl ofSlnlctures should nol exceed Iwo (2) stories in
.Iingle-family residential neighborhoods.
The height ufthe 5chool building will not exceed two stories.
Community Design Flement
Goal: To raise the aesthetic quailty oIlhe eilv.
The project will enhance the neighborhood and the City by replacing an aging school
facility with an improved site plan and a structure of contemporary design.
Goal: To ensure Ihat a high qlwlity of life is maintained as Renton evolves.
The project will provide the Kennydalc neighborhood and its elementary age children
with a modem educational facility that \\'1\1 be compatible with the residential context and
enhance the appeara\]ce oflhe area,
Policy CD-14. Architecture oinew structures ,n eSlablished areas should be visually
compalible with olher structures Ol! the ,'lie ""d I\.'ilh adjace/lt development. Visual
comp"tihihly should be evaluated usillg the jollowing criteria:
a, Where rhere "re differellces il! heighr (e.g .. new two-story developmellt adjacent
10 single slOry structures), Ihe architecture of the !lew -Itruclure should include
details and elemellts of desigll such us window treatmellt, roofl)pe. entries, or
porches Ihat reduce the visu"l mass oj the structure,
b. Gurages, I\.'/rether attached or detuched, should be constructed using the same
pal/ern ofde~e/opment established In the vicinity.
c. Structures should huve enlries, windows, and doors located to mamtain privacy i"
neighbormg yards and buildings.
The site and structure are designed to be visually compatible, to the extent possible, with
adjacent development. Certain elements "fthe dCSlg,n are, by necessity, dictated by the
educational function of the facility, However, lhe gencmllayout of the site, selbacks
rrom the south property line, and the usc of pitched roofs are inlended to minimize the
visual mass of the structure. No garages are proposed, The public rights-of-way
surrounding lhe sile on all sides prevent intrusion into lheprivacy of neighboring yards
and buildings.
Pulicy CD-21. Development should hIJve huildillgs oriented wWIJrd Ihe street or a
common area rather than toward parking areas
The primary building entrance is oriented toward 't\,"E 28th Street AHhough lhe building
and site design are intended to provide visual access and con~enient pedeslrian access
from the street and sidewalk to the main building entry, parking and loading areas are
located between the building and the s!rect. While separating thc building from the street
by parking is not con,istent with the intent of the policy, elementary schools require
speciali/ed site plans duc to their usc and location. Student safety requires immediate
Page 2
• Kennydale Elementary SCHuol
('ondilional Use Justification'
access from the parking/loading area lo (he bClilding emry. Segregating parking to
another portion "r(he site away from the main entry would not promote 8111dent safety.
Additionally, Kennydalc Elementary, like other elementary schools, is located in a single
family neighborhood. Compatibility wilh (he surrOlUlding neighborhood is enhanced by a
greater setback from the street and surrounding residential uses. The parking area
provides a flillctional use of the setback area.
Policy CD-13. Developments sliould he designed so thai public access to and use of
parks, open space, or shorelines;s Ql'ailable where such aCcesS would not jeopurdize the
en vironmen/a/ allribules of the area.
The new site design is intended make public acces~ to the cxisting turf recreation area at
lhe north end of the site more convenient by locating the parking: \ot closer to and more
visible from the playfield.
ObjeL1ive CD-G. Architecture should be dislinClive and cOn/ril",fe to the community
aesthetic.
The design ofthe new KCllllydale Elementary School is contemporary and consistent
with the residential conlext.
Polic)' CD-40. Structures should be desiglled (e.g.. building height, on-elltatioll.
materials. color alld bulk). to mitigate potelltial adverse Impacts, slIch as glare or
shadows on adjacent, less inlensive lalld mes and transportution corridors.
Policy CD-U. Developmenl should prowde appropriale landscaping and iafade
Irealmenl when locared along desigrlaled City arterials or adjucelltto less illtense
developmellts i" order 10 miligate pOientiaily adverse visual a"d other impacis.
The school's location, height, roofiine, orientation, and l'a\:ade materials are designed to
mmimize potential adverse impacts on adjacent streets and properties and to blend with
the residential eontcxt of the surrounding neighborhood.
Policy CD·45. Existing malure vegetalion and dlstmetlV<! trees should be retained alld
proJected;1I developments.
The Renlon School District will make an effort to accommodate scveral existing trees in
the proposed site plan,
REl\'TON MUl\'ICIP AL CODE.
The site is zoned R·8. Public elementary schools are allowed as a condillOnal uses in the
R-8 Zone (4·2·060 RMC). The Renton School District requested an amendmenl to the
City's Zoning Map to add a Public suffix to the R-8 lOlllng ror the site. The Cily Council
approvcd the amendlllent on November 8, 2004. The effective date of the ordinance
amending the Zoning Map has not passcd as of this writing_ With the additional height
Page 3
Kennydale Elementary SCliool
Conditional Usc Justification
allowance under the Public sllffix, the project is consistent WIth the development
standards oflhe R·8 Zone.
8. Community Need: There shall be a community need for the proposed use at the
proposed location. In the detemlination of cOimnunity need, the reviewing official
shall consider the following facton; among all other relevant illfomlation.
1. The proposed location shall not result in either the uetrimental over-concentration
ofa particu.lar usc within the City or within the immediat~ area of the proposed
nsc.
Response. Tho proposal will not result in an over-concentration of elementary
schools within the City or the immediate area. The proposal is to replace an
existing elementary school with a new school. Therefore, the proposal will not
increase the number or concentration of schools.
2. The proposed location is SUIted for thc proposed use.
Response. The proposed location has been used as a public elementary school for
decades. The site is large cnough to accommodate the proposed school building
and all related facilities within the development standards of the R-8(P) zoning.
C. Effect on Adj~ecot Properties: The proposed u;e at thc proposed location shall
not result in substantial or undue adverse effects on adjacent property.
Response. There is no change proposed to the currcnt usc of the site <US an elemcntary
school. Only the design of the site and capacity of the facility is proposed to change.
The new structure \'rill be located on generally the same portion of the site as the existing;
structures. Addition~lly, proposed on-site parking will more than double the current
number of spaces. Therefore, no substantial or undue adverse errects on adjacent property
will occur as a result of this proposal.
In addition the reviewing official shall also consider the fo11o",iog items when analyzing
the application.
• Compatibility: The proposed use shall be compatible ",ith the residential scale
and character of the neighborhood_
Response. Schools are acknowledged to be part of the fabric of residential areas
(Comprehensive Plan Policy LU-96l_ The sitc provide, open >pace for recreation and
visual break from residential development, ~ gathering sp~ce for community
functions, and a buffer be\\\(een the interstate and homes to the east. Additionally, the
deSIgn of the site and structure will minimize the visual impact of 5tTllcture mass_
Pitched roofs will also contribute to compatibility with the surrounding residential
neighborhood.
Page 4
Kcnnydale Elementary Scuool
Conditional Usc Justification
• Parking: Parking under (he building structure should be encouraged. Lot
coverage may be increased to as much as 75% of the lot covenl.ge requirement of
the zone in which the proposed use IS located if all parking is provided
underground or within the structure.
Response. Structured parking is not appropriate for an elementary school. Most
vehicular activity is short-tenn bus and aut<.>mobilc loading and unloading.
Additional lot coverage is not required.
• Traffic: Traffic and circulation patterns of vehicles and pedestrians relating to the
proposed use and surrounding area shall be reviewed for potential effects on, and
to ensure safe movement in, the surrounding area.
Response. Access points, pedestrian and vehicular circulation patterns, and parking
and loading areas have been reconfigured to maximize safety and efficiency.
• Noise, Glare: Potential noise, light and glare Impacts shall be evalnated based on
tbe location of (he proposed usc on the lot and the location of on-site parking
areas, outdoor recreational areas and refuse storage areas.
Response. Exterior lighting will be directed downward to minimize glare and
spillover. Wnh the exception of parking and loading areas, noise generating activity
locations are confined to the north side oftha school buildlllg to buffer residential
areas to the south from noise impacts. Parking areas are located near the entry Cor
safe and convenient access to the school.
• Landscaping: Landscaping shall be provided in all areas not occupied by
buildings, play equipment or paving. The Heanng Examiner may require
additIOnal landscaping to buffer adjacent propertie; from potentially adverse
effects oftha proposed use.
Response. All areas not occupied by buildings or paving will be landscaped. A
landscape plan is included in the application materials.
• Accessory Uses: Accessory uses to conditional uses such as day schools,
auditoriums used for social and sport activities, health centers, convents,
preschool facilities, convalescent homes and others ofa similar nature shall be
considered to be separate uses ami sball be subject to the provisions oflhe use
district in which they are located.
Response. The proposed school budding includes a replacement gymnasium that is
an integral part of the educational programming for the school. The primary use of
the gymnasium will be for student activities.
Page 5
Kennydale Elementary SCHool
Conditional Use Justification
• Conversion; No existing building or stmcturc shall be converted to a conditional
use unless such b\lilding or structure complies, or is brought into compliancc, with
the development standards.
Response. Not applicable.
• Public Improvements: The proposed use and location shall be adequately served
by and not impose an undue burden on any public improvements, facilities,
lltilitics and services. Approval of a conditional use permit may be conditioned
lIpon the provision and/or guarantee by the applicant ofnccessary public
improvements, faeililles, utilities andior services.
Response. The proposal is a replacement project. Therefore, ncw demand for public
services will be related to the increment of additional student capacity_ With
mitigation fees applied through the SEPA process, development fees, and anyon-site
and off-site requirements as the City may impose under its development regulations,
the propo,ed elementary school should not impose a burden on any p\lblic
improvements, facilities, utilities and services.
Page 6
•
DEV~}OPMENr p
Tv OF AENrLj~NJf.,G
City of Renton JAN I 1 2005
#7 Construction Mitigation Description RECEIVED
NARRATIVE
Proposed construction schedule is as follows:
Beginning date for demolition and new school construction is June
20, 2005 as soon as school is completed for the summer.
Substantial completion to be achieved by July 14, 2006.
Final completion and Renton School District occupancy by August
14,2006.
Maximum number of construction personnel to be on-site at anyone time
The number of construction personnel on site will vary depending on
the activity during construction. As construction ramps up during
early construction activities, 20 -40 personnel can be expected on-
site. During the middle of the project construction personnel will
most likely be a maximum of 75 people.
Work hours and days of week to be worked.
Work hours will be limited from 7:00 am to 6:00 pm Monday through
Saturday.
Dust control from demolition through completion.
Construction Best Management Practice's (BMP's) for dust control
will be Implemented throughout construction. Typical measures to
control dust will be the use of an onsite water truck on a dally basis
during construction activities that may generate dust such as
excavation or earthwork. All earthwork stockpiles will be covered
with plastic.
Mud control from demolition through completion.
Construction BMP's to control mud will include utilization of rip rap
or quarry spans at construction entrances and the use wheel washes
upon exiting of the site. Street sweeping will be provided on a daily
basis during construction activities that may generate mud on the
streets. These activities will include earthwork, excavation, hauling,
imporl, landscaping, etc. The contractor will be encouraged to
,
minimize exposed areas, implement aggressive cover practices,
utilize temporary construction surfaces (ATB) and minimize traffic
en1Bring areas of exposed soils. Recycling of existing concrete and
asphalt paving is proposed for use as on.site structural fill.
Noise control from demolition through completion.
Construction decibel1evels will be limited to hours established by
the City of Renton. Delivery vehicles and earthwork vehicles will be
discouraged from idling their engines while not in use. The existing
westerly 405 corridor generates high levels of vehicular noise at
present and the additional construction noise will be a minor small
percentage temporary increase.
Exhaust emissions control from demolition through completion.
All equipment must be certified to current emissions standards.
Vehicles and equipment will not be allowed to idle while not In use.
Oversized equipment or machinery to be used in construction
Some of the oversized equipment expected for the project includes a
mobile crane, excavators, track hoes, off-road dump trucks, concrete
truck and concrete pump truck, delivery trucks, asphalt and concrete
grinding machines, container trucks for demolition debris collection
and hauling. In addition, overhead equipment will not be allowed to
encroach into air space of adjacent property or any portion of a
public right-of-way.
Certified f1aggers will be used during all activity within public right-ai-way.
Certified flaggers will be usad during all activity within public right-
of -way and shall assist all vehictes backing into or on City streets.
Utility disruptions required and steps to be taken to minimize disruptions.
A minimal disruption to power, gas, and data lines will be required to
install the new systams and make connections. These disrUptions
are typically only about 3· 4 hours each and can be planned to occur
at mid-day to minimize neighborhood impacts. The purveyors of
each utility will coordinate the temporary disruption with the General
Contractor and notify those customers impacted In advance. It is
currently not possible to predict how many homes wlll be affected by
the shutdown, until the utility purveyors provide information on how
their system grid is configured. The general contractor will be
required to make all efforts to minimize down time in conjunctlon
with the purveyor's requirements.
Proposed parking plan for workers both on-and off-site.
In the event that the number of workers is anticipated to exceed the
number of parking spaces on site, workers will be required to
carpool from a location to be detennined at a later date. (a
suggestion would be a nearby church parking lot with approval)
When the final parking area is being paved workers will be required
to park and carpool from this location. Workers and subcontractors
will be notified by the general contractor that carpooling will be
required during the final grading I paving activities.
Transportation routes.
The 1-405 corridor adjacent to the site will be the main route of travel
with 30th street off ramp, Kennewick Place and 28th Street as the
roads around the site providing direct access to the school site.
Specific mitigation measures 10 minimize impacts on public right of way utilities and
adjacent properties_
A perimeter chain link construction fence will be provided around the
project site. Special measures have been implemented to retain the
existing field along the north and west property line as well as
retention of existing trees along the east and south property lines.
San-a-cans and dumpsters are placed behind the job shack,
minimizing their visual impact. Erosion control construction
measure BMP's will be required to mitigate any on site stonn water
from damaging the City of Renton s10nn system.
\.'
James Webb
,-
Trip Generation for ",,"yd''''f'''"'"'''''' .. "
DEVELOPMENT PlANNING
CITY OF RENTON
JAN 1 1 20115
RECEIVED
04248.00
, -
'The purpose of Ihi, memorandum is to demonstrate that the proposed
reconstruction of Kcnnydalc Elementary would gencrntc addilional traffic. The
proposed project would replace ,he eXIsting buildings cun-onuy on me sire w,th a nc"w
'cho"i. The reconstruction would !nCT~a,e the size of the school by approximatelj'
16,400 sqLL~re feet. Current attendance", Ihe ,chool" approximatd), 4.'>0 "ludents.
Following the reconstruction the capacity of d,e new school will be approximately
625 ,rodents, an incTca,~ Df 195 smdents. £\lthough at the time of opening the
student p"pu\a,inn would hkely remain rdmivdy unchanged from current levels, the
new school has bnn d~siglled to accomtnmlalc a fUltlre illcr~ase in st\li.knt
populatioIl. Sh"lid a traffic impact ~na1y'" be teyuir~d for d,e project the trip
generation used in that anal,ni, wolid be based on the potential inct'-"lse in
attendance, not on th~ increase ill square-foorng~. We ha\ c found tIus method to he
more rehable fot pT~Ji~ling traffic from school" and i, conSlstem WIth ,tudie,
conducted fur "imilar projects in the on'. 1 lowe,cr, per the Cit),'s guIdeline; we have
calcuhlted the trip genera,ion for the proposed project lL"ng the trip rate pCI 'quare
foot in audi,ion to per srudent.
Tnp generation 1$ based em mtes publish,>d by the In'tillitc of'l'mnsportation
Engmecrs (HE). 1TI~ land lise #520, Elemental)' Sch""l, "'," used to calculate trip
ge!\etati,m, Trip generation for th,' Pro1ect waS cnlculaled for the AM peak hout (a
onc-hour period typically occurring hetwc~n 7:00 and 9:00 AM, whkh incluUc' both
the peak of the generator and th.:: peok of adjacent street traffic), and d,e Pt.l peak
hour of the gcneraror (a one_hoUl period typically between 2:30 and 4:)0 PM). The,"
titne periods repr~senr the h1ghc>\ 1111' b",ncration associated with the prop,,'ed
project, A summary of ~,timateJ lrip generation based on ''luatc-foorage is shown in
'fable 1, Trip generation Im,cd on student popnlarion i, shown in Table 2,
Propo>ed Building
Increase
61,700
16,400 '" " '" "
,]]0
" '" "
· .
A" shown in 'rable 1, based on the increase 111 the ,,{,,are footage of th~ ,choo\, the
PfOJ"ct w()uld gcne.rate approximately 77 new A:>I peak hour trips (42 inbound and
35 outbound) and 51 PI\I peak hour trip, (22 inbound and 29 outbound).
195, ,. 30'.,,$5
Bosed 00 lIT T "p G,""at,"O 17" .d"ion, IM31
As shown in Table 2, based on the potential increase lfl student popuhuon, d,e
project would gcn~'ate approxlmatdy 82 neW AM peak hOUI tnp' (45 inbound and
37 outbound) anJ 55 p/>" peak hour trip, (25 inbound and 30 outbound).
As shown)n Tabk, 1 and 2, the mp generation for tbe p"'p",cd project IS calClllaled
to be higher based on the number of student' than the increase;n ,'quate footage. To
provlde a cm"ctvati,'e analysIS, and In remain consi'krlt with the other element.ry
"ehoo\ projects we ba"e w(lchd on for the Ronton School DlStnct we would
recommend tbm any futlher analysis be conducted tlSillg the higher trip generation
based on student populauon.
The Tran'po Group page 2
Georechnical Eng.ne~ri~g
W~ter Re$ource,
Solid ond Hazardous Waste
Ecological/Biological SCIence,
Geologic Asse<sments
Subsurface EXplDratiDn, Geologic Hazards, and
PreliminaI)' Geotechnical Engineering Report
PROPOSED REPLACEMENT
OF KENNYDALE
ELEMENTARY SCHOOL
Remon, W~shington
Prepared fDr
Renton School District
'/0
Greene Gasaw[lY Arcbitects, P.L.L.C.
Project No. KE03330A
October 7, 2003
"
October 7, 2003
Project No. KE03330A
Renton School Distric[
A"ociHed Earth Sciences, Inc.
c/o Greene Gasaway Architects, P LLC
P.O. Box 4158
Federal Way, Washington 98063
Attentioll:
Subject:
Mr. Calvin Gasaway
Subsurface Exploration, Geologic Hazards, and
Preliminary Geotechnical Engineering Report
Proposed Replacement of Kennyda\e Elemelltary School
1700 NE 28'" Stre~t
Renton, Washington
Dear Mr. Gasaway:
We are pleased to present these copies Df the referen~e<1 report. This reporl summarizes the.
results of our subsurface exploration, geologic hazards, and geotechnical engineering studies
and offers recommemIatio[)s for the prelulllnary design and development' of, the proposed
project. Our recommendation, are prciiminary in that project plans ar~ still under
development at the time of this report,
We have enjoyed working with YOIl on this smdy and arc confidelll that the recommendations
presented in this report will aid in th~ sllccessful complelioll of your projecL If you should
have any questioIl.'l or if we can he of additional help to YOIl, please do not hesitate to call.
Sincerely,
ASSOCIA'TED EARTH SCIENCES, INC.
Kirkland, Washington
Kurt D. Merriman, P.E.
Principal Engineer
.D"'~I," KE""'" P"J""I,lIXl":lO\K""'" -WlK
-
,
SUllSURFACE EXPLORATION, GEOLOGIC HAZARDS, AND
PRELIMINARY GEOTECHNICAL ENGINEERING REPORT
PROPOSED REPLACEMENT OF
KENNYDALE ELEMENTARY SCHOOL
Renton, Washington
Preparedfor:
Renton School Dislrict
clo Greene Gasaway Architects, P.L.L.C.
P.O, Box 4158
Federal \Vay, Washington 98063
Prepared by:
Associated Earth Sciences, Inc.
9115" Avenue, Suite 100
Kirkland, Washinglon 98033
425-827"7701
Fax: 425-827·5424
October 7, 2003
Project No KE03330A
Proposed Repia"meni of Ke",rydaie Elemenlary School
Renton, Washingrcn
SulJsuifaco Explormion, GeDlogic IImArds,
QlW Preliminary G<otochl!ical E"gi"eering Report
Pro/eCi and SiU' Condilions
l. PROJECT AND SITE COl\'DITIONS
1.0 INTRODUCTION
This report presents the resulls of our subsurface exploration and preliminary geotechnical
engineering study for the proposed replacement of the Kennydale Elementary School located ar
1700 NE 28~ Street, Renton, Washington, The location of the existing K~n.nydale Elementary
Sch(lQI is shown on the Vicinity Map, figure 1, included with thi~ report. Our
recommendations are preliminary in thar project plans are still under development at the time
of this report. The existing site features and approximate locations of [he explorations
accomplished for this study are presented on the Site and Exploration Plan, Figure 2. Once a
sitc development plan is available, the conclusions and recommendations contained in thi$
report should be reviewed aud modifled, or verified, and additional recommendations
presented as necessary, AdditlOnal subsurface explorations may be recommended once site
development plans are finalized.
1.1 Purpose and Scope
The purpose of this study was 10 provide geologic and geotechnical design recommendations to
be utilized in the preliminary design of rhe project. Our stndy included a r~view of available
geologi~ literature, drilling exploration borings, and performing geologic s[udi~s to asse% the
type, thickness, distribution, aml physical properties of the subsurface "edimcnts a~d ,hallow
gnmnd water. Geologic hazard evaluations and geotechnical engineering stndies were
completed to establish preliminary recommendations for the lype of suitable fnundalion,
allowable foundation soil bearmg pressure, anticip~ted foundation and flo(lr settlement, floor
support recommendations, drainage consitl~rations, and flexible pavement design, ThiS report
summarizes our currem fieldwork and offers haLard mitigation and preliminary development
recommendations based on OUT present understantling of the project. We recommend that our
office be allowed to review project plans as they lle~r completion to verify that our
georechnical recommendations adequalely address the project design_
1.2 Authoru.ation
Our work was completed in general conformance with the scope of work and cost presented in
our proposal for the project dared June 17, 2003. We were authorized to proceed by Mr.
Calvin Gasaway, Gre~ue Gasaway Architects, P,L. L.c. This report has heen prepared for the
exclusive nse of (h~ Renton Schuol District, Greene Gasaway Architects, P L.L.C" and their
agents for specific applicalion to this project. Within the limitations of scope, schedule, and
budget, our services have been performed in accordance with generally accepted geotechnical
engineering and engincering g~ologl" practices in effect in this area at the time our report was
OClOber 7, 2003 AS50CIATFD EARTH SCIENCES, INC.
Page I
Propo"d Repiac<menl OJ Kenny<ful< Ei"meRl~I)' SclwaJ
Reman. 1I1Is/o"glon
S"bsurjac< E<piol'llIian, Geologic Hazards,
and Preliminary Geolechniml Engineering Report
Proieci and Site Conditions
prepared, No other warranty, express or implied. is made. Our observmi[)!ls. findings, and
opinions are presented as a means to identify and reduce the inhereN ri,ks !O the OwnCr,
2.0 PROJECT AND SITE DESCRIPTION
This report is based on verbal information provi<lcd to us abom this new project, as received
from Greene Gasaway Architects, P,LL C, At the time Ihi, report was written, a new school
building or buildings are planned to occupy the approximate loealJon of the exi:;ting building
and possibly the area within the southeast portion of the site. The eXisting playfield will
remain and be used by the new school. Site development will also include new parking lots,
fire lanes, bus lanes, and related utilities, We assume that the floor elevations of the new
bo.ilding or buildings wonld be similar to that of the cxisting grades and that no basements are
anticipated. Conventional con~rete and masonry construction methO<.h are assumed, with light
to moderate structural loads, For the purposes of thlg report, ~olumn loads on the order of 150
kips and wall loads of 3 to 5 kips per lineal foot are assumed,
The project sile is that of the e~i,ling Kellilyda[e Elemcntary School located at 1700 NE 28~
Street, Renton, Wasbington_ lhe existing school con,isls of several buildings clu,tcred at the
southwest part of the site, with a new athletic field to the north and east, ami parking lot and
driveway areas on the south. The existing lwo-story main school buildrng and the single-story
gym are of masonry block construction_ The three ~xisting portabl~ classrooms are single-
story wood-frame structures, The site i~ relatively level and is siruated a few feet higher in
elevation than adjacent NE 30~ StreeL A rockery flanks the site along portions of the north
and east property boundaries, Overall vertical relicf across the site was visually estimated at
less than \0 feet.
3.0 SUBSURFACE EXPLORATION
Our field study included drilling 12 exploration borings and performing a geologic hazard
reconnaissance to gain surface and subsurface infurmation about lhe site. The various types of
sediments, as well as the depths where characteristics of lhe sediments changed, are indicated
on the exploration logs presented in the Appendix The deptb~ indicated on the logs where
conditions changed may represent gradational variations between sediment types in the field.
If changes occurred between sample intcrvals in our exploration boring5, they were
interpreted. Our explorations were approximately located in tbe field by mcasurmg from
known sile features sbown on the site plan provided by Greene Gasaway Architects, P ,L.L.C.
Approximate exploration locations are showQ On the anacbed Site and Exploration Plan, Figure
2
October 7. 2003 ASSOQ.4I'W EARTH SCIENCES, INC.
Page 2
Propo.<d RI'placemem of Kenl1}'dale Elementary &hool
Renton, W""hingwn
Subsurface EY.ploranolt, Geologic llazar<is.
and Preliminary Geolefhllic~i Engin«ring Report
Prajeci and SUe Conditions
The conclusions and recommendations pre~emed in this reporl are based on the 12 exploration
borings completed for this study The number. location. and depth of the explorations were
completed within site and bu!lget c(}nstraints. Because of the oature of exploratory work below
gl'Ound, extrapolati(}n of subsurface conditions between field explorations is necessary. It
should be notell that differing subsurface c()nditiollS may $(}metimes be present due to the
random nature of lleposition anll the ahermion of topography by past grading anllior filling.
The nature and extent of any variatiuns between the fidd explorations may not become fully
evident until conslruction. If variations are observed at that lime, it may be necessary to re-
evaluate specific recommendatioD~ in lhi, report and make appropriate changes.
3.1 Exploration Borings
The exploration borings were completell by advancing a hollow-stem auger with a track_
mounted drill rig. During the drilling process, samples were obtained at generally 5-foot depth
illlervals. The exploration borings were cQntinnously observed and logged by a geotechnical
engineer from our firm. The exploration logs presented in the Appendix are based on tbe field
logs, drilling action. and inspection of the samples secured.
Disturbed bnl representative samples wer~ oblained by nsing the Standard Penetration Test
procedure in accordance with ASTM:D 1586. This test and sampling melhod consists of
driving a standard 2-inch outside-diameter. split-barrel sampler a distance of 18 inches into the
soil with a 140_pound hammer free-falling a distance of 30 inche~. The number of blows for
each 6-inch interval is recorded and the number of blows required lO drive the sampler the
final 12 inches is known as the Standard Penelration Resistance (" N") Or blow Couni If a total
of 50 is recorded withm one 6-inch interval. [he blow count is recorde!l as the number of blows
for the corresponding number of mehes of penelration. The re~istance, or N-value, provides a
measure of the relative density of grannlar soils or the relative consistency of cohesive ~uils;
these values ar~ plotted on lhe attached e~ploral1o[l boring logs.
The samples oblained from the split-barre! sampler were e!assifled in the field and
representative portions placed in watertight containers. The samples were then transported to
our laboratory for further visual classification and laboratory teslmg, as necessary.
4.0 SUBSURFACE CONDITIONS
Subsurface conditions at the project site werc inferred from !he field explorations accomplished
for tlus sllldy and visual reconnaissance of the site. As shown 00 the field logs, the exploration
borings encountered a silly sand With grave! in a dellSe [Q very !lense. moist to wet condition
interpreted as till which is conslderell to be suitable support straw. In eacll of the exploratiollS,
the till waS covered by 2 to 13 feet of weathered till, recessional deposit SOil. existing fill or
OClOo.r 7. 2003 ASSOCIATED EARTH SCIENCES. INC.
Page 3
Proposed Rep/acement of Kemryda/e Elomemary School
Renton. Washington
Subsurface ExploraliGo. G,owgic fIaalrds.
and Preliminary Geotechnical Engineermg Reparr
Pro/eel and Sire Condilions
topsoil consistiIlg of a mixlUre of silts and sands ill a generally loose to medium dense, moist to
we, condition.
4.1 Soil Conditions
Existing Fill
Fill was cllCoontered in exploration borings EB·I, EB·2, EB·3, EllA, EB·8. a!ld EB·tO to a
depth of 7.5. 5, 5. 3, 2. and 3 f~et, respectively. The fill consists of a mixture of silts and
sands in a ge!lerally loose to medium dense, moist to wet condition. The existing fill was
probahly placed at the time the school was constructed. Sillce !he quality. thickness, and
compaction of the fin materials is rela!ively low or variable, the fill is con3idcred unsuitable
for structural suppor! without remedial improvement. Additional exploration. delineation. and
evaluation of the cXJSling she fill, may reveal material con,i~(ency and denSilY suitable for the
support of pavemeuts and slabs with reasonahle remedial improvement. For planning. the fill
should not he considered suitable for foundation snpport in its presen[ condition.
Recessional Outwash
Exploration borings EB·4, EB·9, EB·IO. EB·i1, and EB·12 encountered between 41-> and J3
feet of sandy soil in a loose to medium deru;e. moist to weI condition interpreted as recessional
outwash. The recessional deposit5 accumulated in meltwater streams during the retreat uf the
Vashon age glacier fwm the region. Based on llS relatively low density the recessional depo'it
soil is nul coru;idered suitable for direct suppOrt of stmcmres without remedial improvement.
The recessional deposit soil sbould be suitable for pavemem s ... pport after reasonable remedial
WDrk is conducted.
Till
Below the fill/recessional outwash soil. our exploration borings eneoun!ered silty sand with
gravel interpreted as tilL The upper portion of the till encountered (to a deplh of 7.5 feet.
maximum) was observed to be in a weathered, medium dense condition. Unweathered til! was
observed to he in n deru;e to very dense condition. The weathered till and the upper portion of
the unwea!hered till was observed to he moist to wet. Till was deposited at the base of an
active continental glacier and was subsequently overridden and compacted by the weight "f the
overlying glacial ice. Til! soils typically possess high strength and low compressihility
characteristics that are favorable for srructural support. Till soils typically contain a substantial
flne·grained ,oil fraction, which makes them Inoistnrc·sensitive and susceptible to disturbance
when weI site or weather conditi()fls exist.
OC/ODer 7. 2003 ASSOClArED fARTII SCIENCES. INC
Page 4
Proprued Replacemem of Kennydale Elementary School
RemGII. WashinglOn
4.2 Hydrology
SlIb'urjace Explomlion. Ccologlc lIa,ords.
oM Preliminary Ceotechnical Engfneen'''g Rep<!n
Projecl and Sile Candiliom
Relauvely high moisture comcnts were observed for soil at or near the Contact between the
surface soils and the underlying till in all bur exploration borings EB-J, EB-5, and EB-6, This
high moisture was interpreted to represellt a perched ground water condition where downward
infiltration of surface water is imp~ded by \[)Wer permeability, dense till at depth. It should he
noted that the exploration borings wer~ completed near the middle of a relatively dry summ~r
following a drier than normal spring amI winter. Ground water levels are expected to be
higher and the amOU!lt of grou!ld water is expected to be greater during and followi!lg the
wetter winter and spring seasons, The qnantity and duration of flow from an excavation face
that pierces the perching layer will depend [)!l the soil grain size, mpography, and seas[)n.
Ground water conditions should also be expected to vary in response t[) changes in seasonal
precipitation. Oll-and off-site land usage. and other factors.
4.3 Site Infiltration
Infiltration testing has not heen conducted as pan of our scope of work. Based on Our
observation of strata encoulltered at the site, the recessional outwash soil encoumered in EPA
located within the western porti[)!l of the site and in EP-9. EP-!O, EP-lI, and EP-12 locmed
within the eastern portion of [he site is the only strata thm might allow infiltration for site
draiilllge disposal. The till encountered at the site i8 considered impermeable from an
infiltration standpoint. Once you have determined the approximate area for yonr drainage
pond(s)/vaul[(s), we can conduct infiltration testing and provide recnmmeudati()ns regarding
the soil infiltrmion rate. ground wat~r mounding, and downstream "fme" analysis,
Ocwber 7, 2003 ASSOC{AIED £/IflTH SCIENCES, INC.
Page 5
Propo<ed Replacement of KennyJale ElememarJ Selroal
Remon, WllfhinglOO
S,tbS"rjace Exploration, Geologic H=rds,
"lUi Preliminary Geotechnical El1gilleerlng RepoFt
Geologrc Hazards and Mllip'lons
H, GEOLOGIC HAZARDS AND MITIGATIONS
The following discussion of potemial geo[ugic hazards IS based on the geologic, slope, and
ground and surface water condi(iollS as observed am1 discllssed herein. The discllssion will be
limi(ed to seismic issues, lamlslides or mass-wasting, and erosion, including sediment transport
and should be considered preliminary.
5.0 SEISMIC HAZARDS AND RECOMMENDED MITIGATION
Earthqllakes occur in the Puget S()und Lowland with great regularity. The vast majorit}' of
Ihese events are small and are ll.lually not felt by people. However, large earthquakes do occur
as evidenced by the most recent 6.S-magnitude event on Febrnary 28, 2001 near Olympia
Washington, the 1965, 6.S-magnitude eVent, and the 1949, 7.2-magnirude event. The 1949
earthquake appears to have been the largesl in lhis area during recon1ed history. Evaluation of
rerurn rates indicates (har an earthquake of the magnilu<.\e he(ween 5.5 and 6.0 is likely wi(hUl
a given 20-year period.
Generally, Iherc are four types of potential geologic hazards ass()cialed with large .,eismic
events: I) surficial ground ruprure; 2) seismically induced larulslides; 3) liquefaction; and 4)
ground motion. The p(){emial for each of these hazards (Q adver5ely impact the proposed
project is discussed below.
S. I Surficial Ground Rllpture
The nearest known fault (race to the project Slle is the Seattle Fault mapped approximately 5 to
6 miles to the north of (he site. Recent studies by the U.S. Geological Survq (USGS) (e.g.,
Johnson et aI., 1994, Origin and Evolution of the Seartle Fault and Seartle Basin, Washington,
Geology, v. 22, pp. 71-74; and Johnson c( aI., 1999, Active Tecronics of fhe Seartle Fuull and
Central Puget SOll-nd Washington -implicalions for Eanhquake Hazards, Geological Society
of America Bulletin, July 1999, v. Ill, n. 7, pp. 1042-1053) have provided evidence of
surficial ground rupture along a northern splay of thc Seattle Faull. The recognition of (his
fault splay is relatively new and data pertaining to it are limited with the studies still ongoing.
According to the USGS studies, (he latest movemem of this fault was about 1,100 years ago
when about 20 fee( of surficial displacement took place. This displacemellt can prcsently be
seen in the form of raised, WaH-Cut beach terraces along Alki Poim in Wes( Scanle and
Restoration Point at the south end of Bainbridge Island. The recurrence interval of movemen(
along these fault SYSlems is still unknown, although it is hypothesized to be in excess of several
thousand years. Due to tf,C suspected long recurrence interval, the pOlenlJal for surficLal
ground ruprurc is con5id~r(-d to be low during the expeded life of (he propose<J s(rucrure.
October 7, 2003 ASSOCIATFD EARTH SCl£l.lCt·S. INC
Page 6
Proposed Replacement of Ken"ydale Elementary School
Renton. W""hinpl"n
5.2 Seismically lnduccd Landslides
Sub5urface £.tploralion. Geologic Ha:mrJs.
and Preliminary GeOIechnical Engineering Repon
Geologic Hazards and Mitigations
lbe potential risk of damage to new structures by a sei,mically induced landslide is considered
to be low <lue to lack of steep slopes on the project site.
5.3 Liquefaction
Liquefaction is a process through which uncollsolidate<l soil loses strength as a result of
vibratory shaking. such a~ that which uccurs during a 8eismic event. During normal
conditions. the weight of the soil is supported by both grain-tu-grain contacts and by the
pressure within the pore spaces of the soil below the water table. Extreme vibratory shaking
can disrupt the grain-to-grain contact, increa8~ the pore presSure, and result irt a decrease irt
soil shear strength. The soil is said to be liquefied whert nearly all of thc weight of the soil is
supported by pore pressure alone. Liquefaction can result in deformation of the sediment and
settlement of overlying structures. Areas most slLlceptible to liquefaction inClude those areas
underlain by non-cohesive silt alld sand with low relative densities, accompanied by a shallow
water table.
The encountered stratigraphy has a low potential for liquefaction due to high density of mos! of
the site soils. and typically high silt content. We did not complete a rigorous liqLlcfaction
analysis and nOne is recommended.
5.4 Ground Motion
The project site is located within a Zone 3 rating for seismic activity on a scale of I {lowest} to
4 {highest} based On the Seismic Zone Map of the Uflired States. Figure No. 16-2 in the 1997
edition of the Uniform Building Code (VDC). This zonation is based on past earthquake
activity in the Puget Sound region. As such, design recorrunendations in the report
accommodate the possible effect of seismic activity in areas with a Zone 3 rating.
corresponding to a peak grnund acceleration of 0.3g (a Richter magnitude 7.5 earthquake
occurring direclly beneath the site). in accordance with UBC guidelines. This seismic zone
factor for this site should be used with soil type Sc.
Alternatively. guidelines presented in the 2000 Internatiortal Building Code (lBC) may be used.
Informatioll presented in Figure 1615(1) indlcate a mapped spectral acceleration fur shon
periods of S, = 1.5. Information presented in Fignrc 1615{2} indicates a mapped spectral
acceleration for 1 second period of S, = 0.5. Based On the results of subsurface exploration
and on an estimation of soil properties at depth utilizing available geologic data, Site Class "C"
in conformance with Table I G 15 .1. 1 may be usee!. Site coefficients F, = 1.0 alld F, = 1.3 in
co~formance with me Tables 1615. I. 2 (1) and 1615(2), respeclLvely. may be used
Ocwber 7. ZOO3 ASSOClA1EO &-IRrH Sr.JENCES. INC.
Page 7
Prop"",! Replacement of Kemrydole Elememmy School
Renton. Washington
6.0 EROSION HAZARDS AND MITIGATION
S"bsu'iace Expiormion. Ge<Jwg,e Ha,ards.
a1ld Preliminary Geo'~ch"icaJ Engineering Report
G<ologic Ilmards and Miriga,jo",
To mitigate and reduce the erosion hazard potential and off-~ite soil transport during and post-
construction, we reconilllend the following:
I. No water should be directed to flow over cuts/slopes during constructiOll activities
2. All storm water from impermeable surfaces should be tight!iued into an approved storm
waler drainage system or temporary storage facilities and should never be allowed to
flow over site cuts/slopes,
3. To reduce the amount of soiltransporl during site grading:, silt fences should be placed
along the lower elevation, of the construction area.
4, Construction should proceed during the drier periods of the year, if p""ible, and
disturhed areas shuuld be revegetated as soon as possible,
5, Ground water seepage ,~hould be anticipated during site grading Seepage should be
controlled and tightlined into a >uitablc collection system and disposed of into an
approved storm water drainage system or temporary storage facility. Specifi~ seepage
reconunendations re\aled to erosion alldlor slope stability ha~ards are best developed in
the field at the time of construction, when the actual seepage conditions ~an be
observed.
6. Soils Which are to be reused around the site should be stored in such a maImer as to
reduce erosion. Protective measures may include, but arc nO! necessarily limited to,
covering with plastic ,heeting or the use of straw baleslsilt fences. Soils excavated fur
foundation walls should not b~ placed on sloped area, or within 15 feet of the crest of a
temporary cut.
October 7. 2003 ASSOCIATED EARTIl SCIENC£S, 11iC.
Page 8
Proposed Replacement of KeMydaie Eleme"WI)' SCh",,1
Renton, WasMngton
S"bs"'face Explorari()n, Geologic Hnwrds,
and Pre/jill/nary Geotechnical Engineeri.ng Re{um
Preillninary f)<Slcn lI.ecomme"dartons
III. PRELIM[NARY DESIGN REC0:ll\fENDATIONS
7.0 INTRODUCTION
Our exph:>ration indicates thal, from a geotechnical standpoim, the propo~ed project is
compatible with this site provided the recommendations contained herein are properly
followcd, The depth to hearing soils is expected to vary across the site from near the ground
surface to as deep as 7,5 feel. The foundation bearing strata can be assumed to be either the
undisturbed till or the recessional outwash sand following recompaction The [ill soils were
encountered near surface within EB·5, EB-6, EB-7, and within 2 feet of ground surface in EB-
8. E[sewhere on tile site, the depth 10 till soil rang~s hetween 5 and i3 fect below existing
ground. Fill soils were encountered to depths of 2 to 7.5 feel below the eXIsting surface. The
fill is not suitable for foundation support. The rece~,i()"al outwa~h is a suilable bearing
stratum only after recampaction as recommcmled in this report. Wilh the exception of the soil
in exploralion pits EP-l, EP-5, and EP-6, relatively shallow perched ground water was
encountered near the contact between the till and overlying soiL Reuse of the higher moistllTe
soil encountered near the soil/till contact as structural fill during all but the driest times of the
year may be difficult.
O)flventional shallow foulldali'llls and slab-on-grade nooeS may he used with normal me
preparation procedures where suitable foundation bearing soil, arc encountered near foundation
elevation. Careful site develop,nent planning will be required to identify fill soils that require
removal and outwash soils that only require recompaction. The unsuimble fin soil must be
removed from beneath plmUled foundati(ms, floor ,labs, and any other settlement-sensitive
structures. An alternalive !O fill removal would be to usc short aggregate piers (GeOplerS™) or
rock trenches to support building foundations through area, underlain by existing fill Soils.
Due to [he limited and variable thickness of existing fills, these alternativ~s are probably nut
warranled. We can provide specific recommendatious for these alternatives if requestt:d. The
following report section' present our specific geotechnical site development recommendations.
8.0 SITE PREPARATION
All fouudatious, paving, and other slmcmres that exist under the planned building and
pavement areas should be removed. Any bllried utilities should be removed or relocated if
they are under [he p[oposed buildings. The resulting d~pressions should be backfilled with
~trucmral fill as discussed under (he SlruC/llral Fill seclion. [n development areas that arc
currently occupied by landscaping, all vcgctaIion 'md toPS[)i1 shQuld b" removed dunng site
preparation.
Oerober 7, 2003 ASSOCiATED EARTH SCI£NCES. INC.
Page 9
Proposed Rep/GG<m.", of Kenrryda/e Elementary School
Remon, Wash;nglOn
Subsurface E:t.plomriiJlI, Ge%gic Hazard<,
and PreUmmary GeoreChllicQ/ Engineering Report
Preliminary De<lgn Recommendmfons
Excavations to achieve design building subgrades should then be completed, The exposed
subgradc soils should b; evaluated. Where exposed, the e.xisllng fil! soil should bc removed to
expose either recessional outwash soils or firm, unyielding till. The removal of eXisting
unsuitable soil should extend laterally beyoud the building footprint a distance equal \0 the
depth of unsuitable soil below plaJUled foundatiollS or floor slab. For ex<uuple, if unsuitable
soil extends 3 feel below planned foundations at a given point, the overexcavation lateral limit
should extend 3 feet beyood the huilding. If recessional outwash soil5 are encountered after
existing fin removal, the surface of tbe clUtwash soils should be compacted to 95 percent
relative compaction as recommended in the Structural Fill section of this report. If (ill soils
are encountered after existing fiU is remQved, no further excavation or compaction is required,
Once suilable native soils have been reached, structural fill can be placed to restore (he design
building subgrade elevation. For pavement areas, complete eXisting fill removal is not
required. Once a subgrade elevation has been established, tile surface of the subgrade Should
be proof-rolled willi a loaded dump truck. Any soft or loose areas should be removed to
expose a snitable, firm condilion and the ovcrexcavation backfilled with properly compacted
structural filL This procedure should be completed snbsequent 10 ,ite strippmg and prior 10
placing new fills t() raise site grades. Structural fill material should be selected and placed in
accordance with rec(}mmendation, in the Structural Fill section of this report.
If construction will occur during winter wea[her conditions. we recommend tbat the upper 6 tQ
12 inches of the building pad c(}nsist Df railroad ball,,~t, crushed concreTe, or sand and gravel
that contains less than 5 percent passing the U ,So No. 200 SIeve, based on that fraction passmg
the U.S, No.4 sieve. The purpose of this select fill is to provide a working surface tbat is
compauble with moderately wet site and weather L1lnditions, Depending on field condition".
geotextile fabric, sneh as Mirafi 500X or equiv"lent, might be needed beneath areas where
ilea")' traffic is expected,
In our opinion, stable construction slopes should be the responsibility of the C<lntractor aDd
should be determined during con~truction. For estimating purposes, however, we auticipate
that temporary, unsuppOrted cut slopes ill the exisling fill/recessional outwash soil can be made
at a slope of I.SH: I V (Horizontal:Vertical). Temporary, unsupported cut~ in till call be made
at a slope of lH:IV or flatter. These slope angles assume that ground water 5eepage is not
strong enough to reduce slope stability and that surface water is not allowed to flow across the
temporary slope faces, If ground or surface water is presem when the temporary excavatiuu
slopes are exposed, flatter slope angles will be required. As is typical with earthwork
operations, som~ Sloughing and raveling may occur and cut slopes may have to be adjnsted in
the field. In addItion, WISHAlOSHA regulations should be followed at all times, We ,hould
be allowed to review excavation cut slopes gr~aler thun 8 feet in height. Permanent cut slopes
shOUld be no steeper than 211:IV,
Some of the on-site soils contain a high percentage of fine-grained material. which makes them
moisture·gellSitive and .Iubjeci to disturbance when wet. The contractor must use care during
OrlOber 7. 2001 ASSOCIAJ£D E.AIrTfi .)CIENC£S. INC.
Page 10
Proposed REplacemem oj Ke""ydnle Elemel/wry School
Remon, Wnshinglon
S"bs"ifaco Explora,ion, Geologic Hm.ar<ls,
and Prelimmary GeoteChnical Engineering Repon
Preliminary DesiRn Recommendations
site preparation and excavation operations so that the underlying soils are not softened. If
disturbance oecnrs, the softeued soils should be removed and the area brought to grade with
structural fill.
To the extent that it is possible, we recommend that the ~xistil\g paving along the west or north
portion of the site be used for construction staging. If the ~xisting pavement caJIDot be used
for construction staging, we recommend that crushed rock fill he considered in construclion
staging areas to form a wOrking surface. If crushed rock is to be used for u)e access and
staging areas, it should be underlain by engineering stabilization fabric su~h as Mirafi 500X or
equivalent to reduce the potential of fine-grained material~ pumpillg up throngh the rock and
turning the area to mud. The fdbric will also aid in supporting construction equipment, thus
reducing the amount of crushed rock required. We recommend that at least 10 inches of rock
be placed over the fabric; however, due to the variable nature of lhe near-surface soils and
differences in whee! loads, this thickness may have to be adjusted by ule C(jfltractor in the
field.
9.0 STRUCfURAL FILL
Structural fill wilI be necessary to establish desired grades and to provide a Uniform subgrade
below new floor slabs and pavement areaS. All references to stru~[llral fill in tllis report refer
[0 subgrade preparation. fill type. and placement and compaction of materials as discu,,~d in
this ~ection. If a percentage of cmnpactlOn is specified under another se~tion of this report, the
value given in that section should he used.
Building areas should be evaluated after site stripping. Existing fill soils should be
overexcavated to expose either outwash soils or til!. Below pavements, the stripped suhgrade
should be proof-rolled and loose or soft areas overexcavated to expose firm subgrade soils.
After stripping, excavation, and any required overexeavation has been performed to the
satisfaction of the geotechnical engineer/cngineering geologist, the upper 12 inches of exposed
ground should be recompacted [Q 95 percent of the modified Proctor maximum density using
ASTM:D 1557 as the standard or (0 a fIrm unyielding condition. If the subgrade contaim too
mnch moisture, adequate rccompaction may be difficult or impossible to obtain and should
probably not be attempted. !n lieu of recompaction. the area to receive fill should be blanketed
with washed rock or quarry spalls to act as a ~apillary break between the new fiU and the wet
snbgrade. Where the exposed grouud remains soft and further overexcavation is impractical.
placemellt of an engineering stabilization fahric may be necessary to prevent contamination of
the free-draining layer by silt migration from below.
After recompaction of the exposed ground is tested and approve<.l, or a free-draining rock
course is laid, structural fill may be placed to attain desired grades. Structural fill is defined as
Oerobe, 7, 200] ASSOCIATED £ARTII SUENCES, /.''/C.
Page II
Proposed Repillcemen< of Kellnydale £Iememary School
Re11lfJ1l, Washi"RIDn
Sub,\urjnce up/oratian, Geologic !/marru,
Qlld Preliminary Geotechnical Engineen'ng nepon
Pre/iminar'/ Design Recommendmions
non-o,ganic soil, acceptable to the geotechnical engineer, placed in maximum 8-1nch loose lifts
with each lift being compacted 10 95 perCent of the modified Proctor maxUnlim density using
ASTM:D 1557 as the standard. In the case of roadway and utility trench filling, the backfill
should be placed and compacted in accordance with current local or county codes and
standards The lOp of the compacted fin should extend horizontally outward a minimum
distance of 3 feet beyond the location of the perimeter f()()ting~ or roadway edge before sloping
down at an angle of 2il: IV
The contractor should note that any proposed till soils must be evaluated by Associated Earth
Sciences, Inc. (AESD prior 10 their use in fills. ThIS would require that we have a sample of
the material 72 hours in advance of filling activities to perform a Proctor test and determine its
field compaction standard. Soils in which thc amount of fine-grained material (smaller than the
No. 200 sieve) is greater than approximately 5 percent (measured on the minus NO.4 sieve
size) should be considered moismre-semitive. The on-site till and outwash SOils generally
contained substantial amounts of silt awl are considered highly moismre-sensitive These
materials are acceptable for use as fill provided they are placed and compacted at a moisture
cOlltent that allows for the minimum specified compaction presented in this report. Reuse of
till soils during wet site or weather conditirms i, expected to be difficult or impossible due to
high silt content and moisture sensitivity, The outwash soils should perfurm better under a
wider range of moisture ~ontactg than the siltier till soils. Use of moi,turc-sensitive soil in
structural fills should be limited to favorable dry weather colldition,. A portioll of tbe existing
fill/recessional outwash soil on-site was observed 10 have elevated moisture content and may
not he considered suitable for use in structural fill applicatiolls.
Free-draining fill can he used in wetter gite and weather conditions under a wider range of
moisture conditions than (he on-site soils. Free-draining fill consi;ts of non-organic ~oil with
the amount of fine-grained material limited t(} 5 percent by weight whcn measured on the
minus No.4 sieve fraction and containing alleas( 25 percent greater (han (he No, 4 sieve. In
dry weather, inorganic on-site soils can be used as strucmral fill if they are cleaned of woody
debris and oversized rocks.
We recommend that during conslruc(ion, traffic across exposed site soils should be kept 10 a
minimwn during and after storm evcnts, until the surfac~ drains. When these materials are
wet, it may result in disturbance of tbe otherwise firm stratum, requiring removal and
replacement of disturbed soils. If wet weather construction is expected, construction access
and staging areas should be protected as de~cribcd in the Site Preparation section of this
report.
A representative from our firm should inspect the s!ripped/overexcavated subgrade and be
present during placement of structural fill to observe the work and perform a representa(ive
Ilumber of in-place density teslS. In (his way. the adeqllacy of the rarthwork may be evaluated
as filling progresses and any problem areas may be corrected at (hat time. It is important to
October 7, 2003 ASSOCIATED £AIITII SCIENCES, INC.
Page 12
Proprued Rep/acemem oj Kenr.ydllie Elememary SClwol
Remon. Washing/on
Subsurface Explormwn, Ge%gic Halard$,
{lfld Prel,minary Gealechn,c~1 E"gineering Report
Prelimi,,,,,,! De"~1l Recommeruiariolls
understand that taking random compaction tests on a part-time basis will not assure uniformity
or acceptable performance of a flll. As such, we a,e available to aid the owner in developing a
suitable monilOring and t~gting program,
10.0 FOUNDATIONS
Spread footings may be used for building support when founded on suitable till, reeompacted
outwash soils, or structural fill placed as previously discussed. To limit differential settlements
between footings that bear on structural fill or outwash soils and those that bear on dellSe till,
we recommend that an allowable foundation soil bearing pressure of 2,500 pounds pe, square
foot (pst) be utilized for design purposes, including both dead and live loads. If higher bearing
pressures are needed, a value of 5,000 psf may be used III areas whe,e all footings are placed
entirely on dense tilL An increase of one-third may be used for short-term wind or seismic
loading. Perimeter footings should he huried at lea5t 18 inches into Ihe surrounding soil for
frost protection; interior footlllgs r~quire only 12 inches burial. However, all footings mum
penetrate to the prescribed bearing stratum and no fOOling should be founded in or above
loose, organic, or existing fill soilg
It should be noted thai the arca bounded by lines extending downward at IH:IV from any
footing mug( not intersect another footing or interse~t a filled area whIch h;l$ not been
compacted tu at least 95 percent of ASTM:D·1557. In additiun. a 1.5H:IV line extending
down from auy footing must not uaylight because sloughing or raveling may eventually
undermine the footing. Thul, footings should not b~ placed llear the edge of steps or cuts in
the bearing soils.
Anticipated settlement of footings founded as described ahove should be on the order of *
inch or less. However. disturbed soil not removed from fOOling excavations prior to footing
placement could result in increased settlements. All footing ureas should be inspected by AESI
prior 10 placing concrete to verify that the design bearing capacity of the soils has been attained
and that construction confurms to the recommendations contained in this report. The
governing municipality may require such inspections. Perimeter footing drains should be
provided as discussed under the section on Drainage Considerations.
11.0 LATERAL WALL PRESSURES
Walis that are free to yield laterally at lea,;t 0.1 percent of their height should be designed
using "active" equivalem flmd pressures. Fully restrained, ngid walts that canont yield should
be designed using "at-rest" equivalent fluid pressures. The foilowing table provides
appropriate active. aI-fest, and passive equivalent fluid pre.~sureg (and associated friction
coefficients) for the antIcipated project wall design conditions.
OClooer 7. 2003 ASSOCIATED E/lRTH SCiENCo;s. INC.
Page 13
Proposed RepJacem.m of KennyiUlle Elememary School
Remon, Washington
EquivaleDt
Fluid
Pressure
Sub''"iface Exploration, C.olog{' {Jawrds,
alUi Preliminary Georechn{(:a/ Engineering Repan
Preliminary Desig!! RecamnumdaJwns
At-R.'t
Equivalent
fluid
(
Pass'v.
Equivalent
Fluid Frkthm
All backfill behind walls or around foundation muts shonld be placed as per (Jur
recommendations for structural fill and as described in tlus section of the reporL Where cast-
in-place retaining walls face structural fill, tile backfill should consist of on-site or imported
granular fill, compacted to 90 percent of ASTM D 1557. A higher degree of compaction is
not recommended, as thi.1 will increase the pressure acting on the wall. A lower compaction
may result in settlement of slab-(m-grades or Diller improvements placed above the walls.
Thus, the compaction level is critical and must be testeJ by our firm dnring placement.
Surcharges from adjacent footings, heavy c(}nstr\l~tion equipment, or sloping ground (where
not indicated) must be added to the above values. Perimeter footing drains should be provided
for all retaining walls as discussed under the ~ecti(}n on Drainage Considerations.
It is imperative thaI proper drainage be provided so that hydrostatic pressures do not Jevelop
against the wall. This wuuld inVOlve installation of a lDinimum I-foot-wide washed gravel
blanket drain, which is continuous with the perimeter footing drain and extends to within I
foot of the ground surface.
Lateral loadl can bc resi~ted by friction between the foulldatio'l and the till, supporting
stractural fill, or by passive earth pre%ure acting on the buried portions of the foundations.
The foundations must be backfilled with stmctural fill, compactecl to at least 95 percent of the
maximum dry density, to achleve the minimum passive resistance shown in the table for
footings cast against structural fill. The presented values are ~llowable and include a sarety
factor of at least 1.5.
12.0 FLOOR SUPPORT
Slab-on grade floors should be cOllOtructed above either rec{)mpacted outwash soils, new
structural fill, or above till as described in the Site Prepararion section of this report. All fill
beneath the slab must be c[}mpacted to at least 95 percent of ASTM:D 1557. The floor should
be cast atop a minimum of 4 inches of washed granulithic maLerial [}[ pea grave! to act as a
Oerober 7, 1003 ASSOCIATED /iAN)TI SClENCES. INC
Page 14
Proposed RepJacemenr oj Konnydalo EI,menwry 5elwol
Remon, WashinljlOn
Sub,",jace Erplormion. Geologic HfIlflrds,
and Preliminary Gi!orechnical Ensineering Report
Preliminary Design RecommendalioflS
capillary break. Areas of slab subgrade that are disturbed (loosened) during construction
should be compacted to a nnn-yielding cnndllion prior to placemenl of capillary break material.
It shOUld also be protected from dampness by an llUpervious moisture barrier at least iO mils
thick, The impervious barrier sbould be placed between the capillary break material a!ld the
<.:oncrete slab. The American Concrete Institute recommends placing a 2-inch layer of clean
sand above the vapor barrier to pro[CC[ it from damage and aid in curing of [he concrete. If
this sand layer is used, i[ must be protected from precipitation or allowed to thoroughly dry out
prior to pouring the COncrete slab.
13.0 DRAINAGE CONSIDERATIONS
It is possible that ground wJter or seepage may be encountered at depths required for normal
construclion during the wetter months of the year. Therefore, the contractor should be
prepared 10 provide temporary storm water collection, storage, and disposal me~hanisms as
necessary prior to site work and during constructlOn
All retaining and footmg walls should be provided with a drain at the footing elevation Drains
should consist of rigid, perforated, PVC pipe surround~d by washed pea graveL The level of
the perforations in the pipe Should be set a[ the bottom of [he footing at aU locations and (he
drain collectors should be constructed with 5ufficienl gradient to allow gravity discharge away
from the building, In additirm, all retaining walls and modular block walls shuuld be lined
with a minimum 12-inch-thick washed gravel blanket provided to Within I foot of the top of
wall, and which ties into [hc footing drain. Modular block Walls if used shOUld also be
provided with chimney drains. Roof ~ml surface runoff should nN discharge into the f(H)ting
drain system but should be handled by a separate, rigid, tightline drain. In planning, exterior
grades adjacent to walls should be sloped dowllward away from the structure to achieve surface
drainage
14.0 PAVEMENT RECOMMENDATIONS
A[ this time, Site layout has not been completed suffiCiently to determine what types of soil are
likely to be encountered at planned pavement subgrades. Pavement subgrade can consist of
either reeompacted existing fill, recompacted outwash soils or tilL Pavement design will
depend to some extent on the soil that exists beneath the area to be paved. If paving is planned
above areas of existing fillirecessional outwash soil we recommend that the subgrade be proof-
rolled to expose soft areas and then compacted [0 9S percent compaction after the removal and
r~pair of soft areas Or organic soils.
The areas to be paved stl()uld be proof-rolled with a loaded dump truck or other suitable
equipment under the observation of the geotechllJ~al engineer. Any soft, loose, or yiel(ling
OClober 7, 2003 ASSOCIATED EARTH SClENC£S, INC.
Page 15
Propo.ed Replacement of Kennydale Elem,,,,ar), School
RenIot'. W""hmglOn
Subsurface Explormjan, Geologic Hazards,
and Pre/jmmary G'G/ethnjcal EIIgm"erlllg H'por!
I'reliminar}' Design Recomm./lifl1liollS
areas or sigruficantly organic salls identified by proof-rolling should be repaired prior to
further work. After proof-rolling, paving sub grades should be compacted to 95 percent of the
modified Proctor maximum dry density as determined by ASTM:D 1557 and to a flfm,
unyielding condition. FOllowing subgrade prcparatioll, we recommend a passenger car
pavement section consisting of a 2'h-inch compacted asphalt paving above a 4-inch compacted
crushed rock base. In areas where buses, garbage trucks, fire trucks, delivery trucks, or other
heavy vehicles will be driven or parked, we recommend a paving seclion cOllSisting of 4 inches
of asphalt paving above 6 inches of crushed rock base.
Pavement thickness ~esign is a compromise between higher initial cost With longer design life
and lower maintenance, and lower initial cost with bigher maintenance requirements and
shorter design life. The recommended pavement sections are intended to provide a 20-year
service life with normal maintenance. Normal maintenance typically includes periodic sealing,
and at least one renovation that includes repair and overlay of damaged areas.
15.0 PROJECT DESIGN AND RECOMMENDATIONS FOR FURTHER STUDY
At thc lime of this report, site grading, struclllral plans. and construction lllethods have not
been flnalized and the recommendations presented herein are preliminary. We are available to
provide additional geotechnical cOllSu]tation and exploratirm as the project do:sign ~cvelops and
possibly changes from that upon which this report is based. We recommend that AESI
perform a geotechnical review of the plans prior to final design completion. In this way, our
earthwork and foundation recorJUnenciations may be properly interpreted and implemented in
the design. We arC also available to provide geotechnical engineering and monitoring serVlces
during construction. The integrity of the foundation depends on proper site preparation and
construction procedures. In addition, engineering decisions may have to be made in the field
in the event that variations in subsurface conditions become apparent. Construction monilOring
services are nOt part of this cnrrent scope of work. If these services are desired, please let us
know and we will prepare a cost proposal.
Oerober 7. 200l ASSOCIATED EAIlTf/ SCIENCES. INC.
Page t6
Proposed Repillcemem of Kennydaie Elementary School
Renton, Washinglon
Subsurface £;;plaralian, Geologic Hawrd$,
aJ1d Preliminary GIlmec/mical EngIneering Report
Pre/imina", Des(rn Recommendar/on,
We have enjoyed working with you on this study and are confidem tbat these recommendations
will aid in the successful completion of y()ur project. If you should have any questions, or
require further assiEtanee, please do not hesitate to call,
Sincerely,
ASSOCIATED EARTH SCI&~CES, INC.
Kirkland, Washington
V\I\~I~t-
Maire Thornton, P,E.
Senior Project Engineer
Anachments: Figure 1: Vicinity Map
Kun D, Merriman, P.E.
Principal Engineer
Figure 2:
Appendix:
Site and Explorati()!l Plan
Hxploration Logs
October 7, 2003 ASSOCIATED EARm SCIENCES, INC,
Page 17
, ,
" • , , 0 0 , , ,
" c
C 0 0
0 ,
0 [(J •
• • ~ 0 • ,
0 •
< m ,
• •
0 ~ 0 • •
0 • Ifll •
<
"" ,,~, ",., 'J(,,, '''~''''" ""C!)'
, -0--.. -Q-
rTTTTTTTTi,
--"'--,-.. _ .. -.. _ .. _ .. _.
• E8·10 • EB_12
• EB-11
• EB·3
• EB-7
• EB·S
ExlStJng
Main Suildir.g
• EB-S
• EB-6
• EB-4
EB-9. Approxima;e location o( exploralion boring
SITE AND EXPLORATION PLAN
KENNYDALE ELEMENT,\RY SCHOOL
RENTON. WASHINGTON
---
NO SCALE
FIGuRE 2
PROJ NO ~F.(]]310A
, , , " Hole Dlam.ter (in)
BlowslFoot
DESCRIPTION I--hl--~o,~,-. --c:::-~-1-1t:I~tttrt
Damp, '~-:;1'n~
MOI.~ dar!: brewn, Sil TY ~ne to modi"", SAN[) ISM). rew 9'~""dM 9,.,." filw o'llonios,
--- - ----TIi,-------------
Moiot, bI""il,a1. SILTY SAND, t.". ",uMoo gr.,ol ISM). jmoe """'" OJ(ldali<><l
SILTY SAND, Itace rounded 9"ve' (5M), Mc. ot,nil"
2" OD Splil 51>0''" Sampler (SPT) 0 No Reco,ery
3" 00 Sprlt Spoon Sarno!.' {D & M) Il R'n~ Sample
M _ """,u,.
V_ Wote, Level i\
W."" Le"el .t fm" of dr.lllng (A TD)
Loggod by; MT
App<o,"d ~y.
~ I~ , , , '!;;', I=!~:)";,::o, •• g:~::'"' '''"' " ,
§l'IC oa\eSlar1lFlnlS"" ~
Hole Di.me,.r {In)
• i in .
• BlowslFool
0 , Igl 0 DESCRIPTION " , , Damp, brown, SILTY SAND, " , , .,
oxi<l.~on_
-~g~~\ , ,. ,
I., , ------ - -----We.th.~'fiil----1,lli " Wet to $.I"",teo, gray. SIL TV fon. tc med,"'" SAND {SM). fow mun~.d
5"'''''', 'arge cohble en"'"n'.rod .1 /".
-------nu----- ----------
" "I w.\ 9"'Y, SILTY fine 10 0"" .. SAND, few (m" g",vel(SM), ="9" I WI o,ld~tlon_
" '4 I " r , , , , ''"'
.",,,,,,,, "'P~'";''' bono,,, " I"L
"
" I I
I
"
"
~ , '''' TOO SOl;' Spoon sampler (SPT) No Rooo",,"1 M. Mol"u," L09god 1l'J' ", iL-j ~::OS::'~I:-" S.r"ple<ID & M) RI"g Sample ~ W."'r L<wel {) Approved by-
, , , W."" Lev<' at OImfr of dOLI'"" (ATD)
DESCRIPTION
, ,
r---.. ------------rul------- - ---- ---w., to moist, blu • .g.'Y, [,no 10 coot"" SAND. r"", 1O"""d gr."", (SP,
MOISt. blue·gray. ~oe to Coal,. SAND (SP).
",""" 0' ,_,00 0.0''',"'' 1B ,,,'
2" 00 Spilt Spooo Sample' (oPT) 0 No Roc"".,,!
a-OD Splil Sp""" Sa",plor {D & M) U Rlog Sample
M -".oI.lure
'i WaLer Wiol {)
W,IB' Level .11,,,,. ot drilling (A TD)
Blows/Foot
20 40
lO~ged by, Mr
App""'." by,
Blows/Foot
t~lt;;::::=~:;;:;;;;;;;'~'~SCRIPTION ";;;:-;;~~Itt;rn-tTt1 ii, I SAND ISMI.sllghl ,
D=p b mois~ Y"l1ow.l~ht~'.y. SILTY' fin. to m.o;um SAND (SMI_
---- -----Till------_ •• ----._ •. _.
MQlStlO ""'t, brow".~",y, SILTY"oe to m,dium SAND ISMI
2" 00 Split 5»0001 5.mo", (SPT)
J" OD Spl,t Spoon Sampler {O & M)
~ GrabS'm"",
No Roo""""" M . MolsllIre
Ring Somple 5l-W.W LO"'Jel {)
SMIOY Tube Sample 't W .... , Level _""n. of doll,ng {A TDI
Logged by MT
"PP'O'"'~ by,
I~i ;";;', ~ ~ '. " 0."0. , ::;J~" I I I I I I Date SI.rt'F,"i,h
Hale Doomeler (,")
g llnl Ilil)!]1 " Blows/Foot ,
c DESCRIPTION w " " , , ,
I'" Damp, t><_-g,..y, , , , , ,
----- ----TOiI---- - ----------,
J " [l'mp to ""'''', gray, SILTY SAND, few~"" 9"vol (SM) Irt
'" I" Damp 10 moj." 9,ay, SILTY SAND, few 000 g,.""IISM) Ilil! I
" Oamp to moi,t, "'"y, BIL TY SAND, 'ow f,,~ g'.',el ISM) 11:11 ,~
e"""" of ",pi"."", 1>0"", a1 ,. , .. ,
'"
;;
"
;;
~ ~'''' i
lOgged by: 2" O[) Split Spooo Sampler (Sf'T) NO ROCCIt€'l' M • MO""U'9 ",
," OD Sph' Spoo" sample, (0 & '-'I ! ~'"os.rnOI. ~ W.'.' levall) App"""d bl"
G",b Sample , " lVate, La""I., tin. 01 ",'hog (/'. TO)
, I
Blows/Foot
DESCRIPTION ,a ~++~---~,,~~~trulH4i~ Domu, yellOW_Drown, SILTY "'\tOni
----- ---------f'I,------- ---------I
Damp to rnalst, 'tOWn 10 l<ghl ~ro"", SILTY nne 10 meolum SAND (SP)
Ma;,,!, gray, nne '0 medium SAND (SP). trace ",t, tca,,, ","oded gr."".
, . Uace mund.,
I
a" 00 Sp';' Spoon Sampler \SPTj 0 No R«ovory
3-0D Split 5p""" S;amp:.r ID & MI IJ R,"~ Sarn?lo
M _ Me,,'u",
¥-Waler Lew' ()
Water le"'" at time of d,,"i"~ IATD)
loggod oy: MT
App"",.~ ""-
• 1
'"
,;
e,
Molslto ""'~ l"'llow-b,own ~ne 9"'''''1.
DESCRIPTION
Wei. Y"lIow·brown to gray. Sil TY ~n. \0 ",",rse SAND (SMI. r"" fi""
grn",,1.
"---------------fiil---- ------ -----~
S.\u",,,,", ~ray, med,"", '000."'. SAND {SP) " SIL TV SAN~, r.w ine wave' ISM). ora"". "",da"o".
10 SILTY SAND, few fi"e
." OD Sp'l Sooon s.m~er {SPT)
3" 00 Split 61">'" S,",~lcr ID ~ M)
Nq Raoov0'Y M _ Mo,s:.".
RI"9 S'",pl. ¥: W.,or Levell)
Sh<lb1 rUbe Somple:of W."" Le,el .tume Q/ drilii"9 {ATilI
Blows/Foot
I I
Loooed "'" MT
Appro ... d by:
g • • 0
• • " ,
" , ,
,
DESCRIPTION
MOl .. on ,atuea"'", Q"'Y. SILTY fine 10 .,odlum SAND ISM) to fine In
moO;um SAND w"h lroco of Silt, few rcunde~ gra"" (SP).
Saturated, Q"'Y, SllH ~n. \0 medium SANCl ISM) lO fi"e 10 m<>dium
SAND .. tIl <roca 01 silt. 'ew ,,,,mdod 9"'''''' (SPl.
I!
(SM) 10 fino '0 medIUm SAND
S"cm" ""P~""'" "",",,, "'"L
2' OD Sphl S"."," 80m",", (SPi)
3" OD SOLi! $0""" Sample< (0 & M)
No Roco,ery
Rln~ Samplo
M _ Mm,UJre
Sl-W.""Lo,olll
I,
W."" Le'el at time of d,1I1'"9 IATD)
Blows/Foot
Lo~".d by: MT
App~by:
· ..
Blows/Faot
1-1I~t_t;;:~.~,,;;;;:;;:;;;;:J~DESCRIPTION ;:;;;~,,~----~~trt-f-;r,1--'rll-
'"
Damp, yellow-bro"n, SILTY fine to medium SAND ISM).
D.mp to ,....,1, I;~~' )'<l:!aw-braw". SILTY noe SAND (SM). "range o,ie.,lon.
---------------T'''------
Mo;sl to ''"''~ bluo-jjmy, SILTY ~"e to oOOrsO $A.'J[) ISM)
it. I
,
Z" 00 SO" Spoon Sampler ISPT)
3" DD Spi,t Spa,,", Sore,pl., ID & ~')
No RocD,ery
I Ring S,mplo
M • Moist,,",
51 Water i..evel ()
y W, ler le""I" t,,,,, 01 d," "'I (ATD)
LOQood by: MT
Approved by:
• • ,
0
"
" • > " " ,., DESCRIPTION
Pamp, light brcJWll, SILTY ,
Moist, y.,~.br""n. S'L TV ~M to med,um SAND ISM). ora"g. o"d.bOfl,
mOl1llng.
$alu"'tod, oI;,e·""""" fi". SANDY BIL T (ML) '0 Silo 11' fin" to rood,um
SAND ISM)_
, ,
HOI. Olamote, (in)
--------------TIi,-- - - - - - -----.--~
Wei. blue.gray, S'l TV fino 10 coorse SAND, f<w "","ded gravol (SM)
~", ~I"o~ray. 51l IT fine 10 c,""". SAND, row munde~ gr.",' (SM).
2" 00 Spirt S~" Sampler ISPT) No Reco,e"!
R"9 Sorr,ple
M _ "",,.'UI"
" OD Spill SpeD" Samo",' (D & M) !j. Wale, L.,.I I)
Water Le,.' at ~m. ~r "niling (ATD)
"
Blows/Foot
Logged 1>'/: MT
APP"",.d by:
,
Associated Earth Sciences, Inc.
September 7, 2004
Project No. KE03330A
Renton School District
cia Greene Gasaway Architects, PLLC
P.O. Box 4158 .
Federal Way, Washington 98063
Attention:
Subject:
Me. CalviD Gasaway
Supplemental Subsurface Exploration and
Geotechnical Engineering Services
Proposed Replacement of Kellllydale Elementary School
1700 NE 28~ Street
Renhln, Washington
Dear Mr. Gasaway:
AHBL
DEVElOPMENT P
CITY OF RENT~NlNG
JAN" 2005
RECEIVED
This letter presents the results of our supplemental subsurface exploration and geotechnical
engineering services for evaluation of existing conditions within the parking area south of the
existing main building and within the play area northeast of the existing gymnasium. OUf
work: supplements the ~Subsurface Exploration., Geologic Hazards, and Preliminary
Geotechnical Engineering Report" dated October 7, 2003, Authorization to proceed with this
phase of our study was granted by Mr, Calvin Gasaway of Greeoe Gasaway Architects, PLLC,
Based on input from the project qesign team; we advanced three exploration borings (EB-13,
EB-14, and EB-15) at sp~cific locations across the site to define existing subsurface conditions
in the vicinity of a potential building area. Exploration was conducted on August 24, 2004.
The locations of these exploration borings and our previous borings are shown on the Site and
Exploration Plan, Figure 1.
Subsurface Conditions
Subsurface conditions in the selected areas were inferred from visual recouuaissance, our
previous explormion, and the field explorations accomplished for Ihis study. As shown On the
field soil logs, th~ supplemental exploration borings encountered fill overlying till.
Existing Pill
Fill was encountered in exploration borings EB-l, EB-2, EB-3, E8-4, EB-8, and EB-IO to a
depth of7.5, 5, 5, 3, 2, and 3 feet, tespectively. In onr supplemental exploration, fill was
encountered in exploration borings EB-13, EB-14, and EB-15 to a depth of 5,2, and 4 feet,
respectively. The fill consists of a mixture of silts and sands in a generally loose to medium
dense, moist to wet condition. The existing flU was probably plll.ced at the time the school was
constructed. Since the quality, tbickness, and compaction of the fill ll1llterials is relatively low
or variable, the fill is considered unsuitable for structural support without remedial
improvement. Additional exploration, delineation, and evaluation. of the existing site fills may
reveal riIaterial consistency and density suitable for the support of pavements and slabs with
reasonable remedial improvement. Fot planning, the flll should not be considered sl.;itable for
foundation support in·irs present condition.
Recessional Outwash
Exploration borings EB-4, EB-9, EB-W, EB-ll, and E8-12 encountered between 4'.6 and 13
feet of sandy soil in a loose to medium dense, moist to wet condition interpreted as recessional
{,Iutwash. No recessional outwash deposit soil was eucountered during supplemental
exploration. The recessional deposits accumulated in meltwater streams during the retreat of
the Vashon age glacier from the region. Based on its relatively low density the r~ces~ional
deposit soil is not considered suitable for direct support of structures without remedial
improvement. TIle recessional deposit soil should he suitable for pavement support after
reasonable remedial work is conducted.
Till
Below Ihe fill/recessional outwash soil, our exploration borings encountered silly sand with
grave! interpreted as till. The upper portion of the till encountered (to a depth of 7'.6 feet,
maximum) was observ·ed to be in a weathered, medium dense condition. Unweathered till was
observed to be in a dense to very de!llle condition. The weathered till and the upper portion of
the unweathered till was observed to be moist to wet. Till was deposited at the base of an ., . .
active continental glacier· and was subsequently overridden and compacted by the weight of the .
overlying glacial ice. Till soils. typically possess high strength and low compressibility
characteristics that are favorable for structural support. Til! soils typically contain a substantial
·fine-grained soil fraction, which makes th.em moisture-sensitive a,nd susceptible to disturbance
when wet site or weather conditions exist.
Hydrology
Relatively high moisture contents were observed for soil at or near the contact between the
·surface soils andlhe underlying till in all but exploration borings EB-l, EB-5, ami EB·6. This
high moisture was interpreted to represent a perched ground water condition where downward
infiltration of surface water is impeded by lower permeability, dense till a! depth. It should be
2
noted that tlie exploration borings were completed near the middle of a relatively dry summer
following a drier than normal spring and winter. Ground water levels are expected to be
higher and the amount of ground water is expected to be greater during and following the '
wetter winter and spring seasollS. The quantity and duration of flow from an excavation face
that pierces tlie perching layer wi!! depend on the soil grain size. topography, and·Season.
Ground water conditions should also be expected to vary in response to changes in seasonal
precipitation, on_ and off-site land usage, and other factors,
Recommendations
General recommendations for the foundation support ,system are presented in ,our October 7,.
2003 geotechnical report. The recommendations contained in the referenced report remain in
effect.
We appreciate the opportunity to continue 10 work with you on this project. If you have any'
questions, please do not hesitate to call.
Sincerely,
ASSOCIATED EARTH SCIENCES, INC.
Kirkland, Washington, '.
Kurt D. Merriman, P.E.
Principal Engineer
Attachments: Figurel: Site and Exploration Plan
Exploration Logs
KD",,,
KID""")
Pr"J,,,,,,o..H11O",E'lWP· w'K
3
. .
-?-.. -.. -.. -.. ..Q ..
• EB.tO
• EB·9
'-"-"-"-"-"-"-"-"-"
• EB-t2
• EB-3
• EB-7
• • EB-11 ES-S
Existing
Main Building
• ,,~
• ES_6
• EB-14
LEGEND
EB4
EB.9. Approximate location of explora\[on boling
-'.
,
NO SCAI..E
=""='='0""" ."," .. , .•.•. , '".'====~S~'~T~E~A~N~D~E~X~P~L~D~R~A~T~'~O~N~P~LA~~N~========;~;;''7==
KENNYDALE ELEMENTARY SCHOOL DATE 9104 "",.'n' .. , '",A",U,.,r..Tn ..
II gravel ~~d
,
,
I. Ii I
"
and other
~
DenSlt~ SPT'~blowslfool
Co .... -\lery Loa,. • ••
Gro""'a Sa\s ,-, • to 10
Me<l,um De".e 101030 Test Symbols Den ... 30 to 50
Vory Don,. .00 G ~ Grain SIlO
SPTlllblcW$lloot M = MOI$M. Conlonl
A = ""«be'll Umi"
Fio&-G 102 C ~ ChemiCal
Grained Soil,
, .. DO _ Dey Don",,,
M.Olurl' S"~ ••• K p Perm •• bl,Iy
'''" 8 \0 15
151030
Component Definition ..
Descript,ve Term
Boulders
~,.
Size. Range and Sieve Number
Larger than 12'
3'101?
Gr,.,eI
Ccer.e~el
FmGravel ...
Coa"eSond
Medium SaIld
Fino Sand
SOil ""~ Clay
3' \0 No 4 (4 7S mm)
J' 10 3/4'
314" 10 No, 4 14.75 mm)
No 4 {4,75 mm) ",No 200 (Oms mml
"'0 • t4.75 m"') 10 No, 10 (2 00 mm)
"'0,10 (2.00 01"') 10 No, 40 to 425 mm)
No, 40 {O 425 mmllO NO. 200 (O 075 rnm)
Smaller tilan No, 200 (o,07;';_;;;;' ;;<;;;;;;;;;; ____ j
" 10 to
151020
-Non-primary CoO"'.
000,"""",1,, > 1510
Dry" AM..,c. 01 molS'ure,
~usty. dry 10 the touch
SlIghl", MoISI -Perc.pIi>le
moisture
Morol . Damp bu, ""'",,"'"
~,.
Very Moi.1 _ Wate, "i.,blo bul
nOl'roa dr""""ll
W.t "VISible Iree woler, usuilfy
" FI""" coni"'" bewe."
5%_,510
Blo,,5/6" Or
pori"," of 6'
I • • • 3,ey 00 Splll.s"oon Sampl.r
3 2,' OIl Sp,I,SpOOn Ring Somplor
3,ey 00 Th,n_Wall Tub. Sam", ..
(Including SMIOy tut>e)
" I De'cllp"o"
and "",nl,ficollC!<> 01 So;I, (ASTM D-24B1l)
::t ATD m At limo of drilling
Z SI.llc wale< I""", (date)
'" Combined uses ",mbo" usad lor
[",os b.""".n 5""'nd 1,,,,,
,~~~~?=~============================ Associated Earth Sciences, Inc. I~~~[!j~ Exploration Log Key A·1
i i ,
Blows/Foot
DESCRIPTION ~hl-~------------------++~~~~~
Damp, )l<!IIow-brOWn, I
Oamp, brollm, SILTY
MaiSl, dar\: brown, SILTY fine 10 medium SAND (SM), few grooM.o
gra •• I, faw or~.nlcs.
Moist, b'"o-gr.y, SILTY SAND, 1"'00 roundod g",,,,,1 (SM), Ime. "",,"ga .""daUOn.
rn 2' 00 Spl<1 SpOOll Sample, (SPTI m 3' 00 Split Spoon SamplOf (0 3 M)
o No Recovery
IJ R;ng S.mple
,.
M _ Maisl"r.
'" Waler l..".,1 0
,.
Logged by: MT
Ap""",.d ~y:
" " " " " " Depth (It) " 0 " 0 0 " ElEl3
0 "" , , "
0 o , " : ~ " Sample. D o· , " " " ¥ ¥
" " 8 0 g ;!:j 8 i , " .. !~ 0 0 is:!P.. ~il -0,
" " , " s-". " • '. -, 0" -. , 0 .-" 0 0 , 0' ill
" " ~ , J ~ 'i" -, -§ sit "' .' 000 , " " • • -00
0 0 , " < ;"! 0' , -I > • .. • ,
'",0 • ,
i " "
, i "-< ' Ji • , , 0 ~ 0 , • , @,"~' • • • , 00 , • m " . " ~ ", !, " 3 § > , ::; S::I"I "' 0 , P gl '"3 ~I 0, " o " 0 ~il " r'" • ., ~ , 2' .... , "' 0 " , , 3 E, ~, 0 5 0 • Z , • " , 0, , ~ > , ~, "' " ~ 0 • 0 , " , 0
" " ~ , C, 0
!'! ~ 0 ~ , , .' I . , • $ , , " --, . ~ , " • 0 0 , , 0, 1 , 0 , " c 0 0 , ., , " • , , ~,
C-wo< '" " "" 2.ruru~
Ccmplellotl .. 1t"~ o(J)3~ • Walerlevel iir lit "--, ti.-;,,,, .-" """ B1<7wSI6" 3 '" g> • 1P ~ ~ 2. ~
'§' ~ ..
W
>C I I: ! " '\ " < 0 I 0
'< " .!if -.
~
• 1
" Hoi. Oi""'""'r (In)
Blaws/Foot
DESCRIPTION ~~"~------~~~~~rrm n 5A~ Of.nge "xldalion.
MoOSl to wet, gray, nne to
Wet to mol .. , blue",,,,y, fine to
Moist.
eouomol ... """,Uon "",,"0 ", .....
2" 00 Spill Spoon Sampler ISPT) 0 NQ Reco"'"Y
3" OD Spl,( Spoon S.mpler (0 & M) U Ring S.mpl.
I (SP)
M-MolSrure
'¥ W.ter Level ()
Blows/Foot
DESCRIP~'~'O::::N _______ +++.I_-';c--1'-HJl-;:;-H;;;~;;;;;:;; to modlum SAND (SM), slighl
o.trp to m,"s~ yellow-ll!jt>. gray. 51L TV fino to m<t<livm SAND (SM).
"
MoI.llo wei. broWll.g'.y. SIL TV ~n. 10 m<t<li"", SAND (SM).
15 S-4
2" 00 Spli' Spoon S'mp<e' (SPT] D No R • .,.,,,,,'Y
3" OD 5pl;(Spoon Sompl.r(D $. M) IJ R;ng S.m~l.
M _ Molstu,"
51 WaW Le",,1 ()
r7I ~ ~ • _ ~ ___ ._" W ... , Le""'.' time ofdnll<"\IIATDI
LoggOO bY: MT
APp,oved by,
D.lum
Dale SI'rtlFinls~
lio,," Dt'm.to< lin)
Blows/Foot i f r--hi-+-j--------DESCRIPTlO~N;;;:;-----titr~'f"-"T"-'r.~-rtl
S·l Damp. b<own.gray. SILTY im ... "
" ,
Damp 10 moi.l. gtay. Sic TY SAND, few fine gravel (8M).
" Damp 10 ,"01.1. gray, SILTY SAND, lew fine Qr.",,' (8M).
Damp 10 molsl gray. SILTY SAND, few ~"" grave' ISM).
"""om 01_ OO"ng at ,. ,,,'
,
2" 00 Sollt Spoon Sam~l., (SPT) D No R"""""", M _ MoISture
3'ODSp"tSpo'",Sompl.,ID&M) IJ RlngS.mOI. "l w.'",~e""o
co,"., ~_'m"'A Vl ShelbyTuU~ Sample Y Wa'.rLe""I.1 ~me 01 "rllllng lATO)
l09g0d ~y: MT
APprovod by'
I~ ~ ~ ~
" • ' :'"Ei"" I g:~~~tartlFlnISh QrlllerIEqu;pme.' . I
Ham""" W.,ghl/lJrop Kole D;amole, (in)
g j Inl 61owsIFoot III
" 0 • C .
DESCRIPTION
" Damp. yelkJw.t>"""', SILTY , ,
lrare roo<ldod gravor, >,
n" , ,., Damp to moist. brown to light orO""', Sil T'i nne to medium SAND (SP). >, II~I
'" ,., Moi .. , Qmy. fine to mWlum SAND (SP). trace .ilt, traoo /OIJ"dod 9"'"01. ~ W .
" Moist. bl"""l!ray, SILTY SAND (SM). Irac<I rounded 9ravel. ~. ,.
5o_ '" """"""""" bering " \' r",
"
"
"
"
,
2" 00 Spill Spoon Sampler (SPT) o No Re<:<>vel)/ M. MoiSlUre Logged by: "' J-00 SpLit S""O"' S~"H".' (0 & M) U Rin9 $.mple 0 W.O., Le,.1 0 Approvod ~y:
171 "Co,",. T •• h~ ~O_"'Q 1 Waler l.vel .t ~n'a of ddlling (A TD)
• I
"
,
DESCRIPTION
Moisl to weI, yell"""~r""'" , jew
fine ~"''''I.
w"' le~""'-brown to gray, SILTY fi"" 10 roars. SAND {SMI. few fin.
g"'v.,
- - - - - - - - - ------ru,--------- -"-----
, "
Satura,od, gray, medium 10 coarSe SAND (SP) to SILTY SAND few fon"
gravel (SM). o.....-.ge o"ld'lIon. '
, f_fine
2" OD Splil Spoon Samp'er (SPT) 0 N<l Re""",ory M· M",$lure
J" 00 Split SpOoll S.mpler {D &. M) IJ Ring Sample 5J W,,'.r Leve' 0
EllowslFool
'"
'-<\lg.d by: MY
ApproVOd by.
1/1 Sh.'bv Tube S'mpla Y_ Water lOve' ot 'Ime or dll'lin,',',",',',' ____________ _
" ,
'"
'"
'"
DESCRIPTION
MoI.t to ... turated, gray, SILTY fine to me<ll"(11 SAND lSM) to ~M 10
m.cllum SAND ",,'Ill Ira", of .,11, fewfOlJooed 9 ..... 1 (SPI
8'M~,"d. gmy, ~IL TV fine 'Q medium SAND ISMllO fine '0 modium SAND "';111 "ace 0' slit, few mundftd "", •• 1 (SPI.
to nne to modium SAND
2" 00 Splil Spoon Sample' (SPT) 0 NQ Recove<y M • Moisture
J" OD Spl't Spoon S,m'pl., (0 &. Ml IJ RI"9 Samo'. 2. Wa'.' Level ()
BlowslFoot
logged bY' MT
APf",,,.d bY'
,,~" ~.mol. IZl Shelby T"~e Samp' • .!: Wo'er ~""" at time OJ d,,";og (A TD) ----~~------~
"
BlowslFoot
DESCRIPTION 30 ~liwn;-rrrH D.mp, light b,,,,",,.
Damp, yeilaW-llrown. Sic TY flne 10 medium SAND ISM).
Damp 10 ""' •• ghl y.''<'N-brown. SIL TV "no SI>.NO ISM). orange oxidalion.
MoI.I to wet, blue-'\lray. SILTY n .. to """,rs. SAND (SM).
Moist. blue-9fiJY, SILTY ~"" to coar.;o SAND ISM).
2" 00 SpJ,t SPoon Sampler ISPT) 0 No Reo;>v.ry M _ MQlsw", Logged by: MT
3· 00 Spl,l Spoon sample< (0 ~ "') (j Ring SampL~ ¥'-W.", Levell) Approve<' by'
171 ~"~Ihv Tube s.mOI.! War., Level at 11m. 01 drilling IA WI
~ ~~ j ,
I ::~~~.:::;;:,,,~ ::~ I
f-Iole Dlameler (In)
g " 1~llllll 1:1
• Blows/Foot ~ Iii 1
o " DESCRIPTION '" ~ 5_1
, I'{ Damp,light 0,,,,,,,,, Sil. TY
, ---------
, Moist, yellOW-brown. SILTY fine to medium SAND ISM), P,.nge oxldaUon, ,., mottll"IJ. ~.
'" S.rural.d, oIlv.-~"""". fine SANDY SILT (ML) to SILTY r.n. to medium
SAr<D{SM). '"
I' ------------""
" Wot, blu'-Qray. SILTY ftn. 10 ro.,.. SAND, f.w rounded gravel (SMI_ I~I
'" Moi,t, bluo ... roy. SILTY fine to ""a". SAND, rew round,," gr.""1 (SM, " '" ,
6<;rt<,m '" 0<piD<a''''' """"" at 21,S 1ea,
"
'"
"
~. OD SPli: ~poon samp"'r (SPT) D No R"""""ry M·MOO"ru,. LoI/II.d by: ",
3" OD Spl'l $pooo S.mo'" (0 & M) U RmQ Sampl. , Water Le"", {) .... "..""'.doy: ,
~_" c,_o," ~ So.'by Tube Samp' •. T. Water le,.1 at 1,m. or dnlLlng II< TO)
,
DESCRIPTION
" " fin. SAND ISM).
MoI.t, I"'now-g"'Y, SILTY fin. SAND/SANDY SILT (SM·Ml),
Ground
Oalum
Dale SlarVFinish
Kol. Oi~mete' lin)
r ---------------ffil-- ------ - -------1
Saruraled. I"'llow-<>",y, SILTY flM 10 m.~ltim SAND. few ~"e gra,ol (SM). orange 0.,,,,1,0<1.
.n ",10 medium SAND (SM). trace ~n. gravel.
2" 00 Spilt Spoon Sampler (SPT) D NQ Reco,ery M • Morsl","
3" 00 Sp'" SjlOQn Sampler 10 & M) [] RIIlIf Sample )J Waler Low.1 ()
Blows/Foot
logwd by; MT
Approved by:
Ji51 G",b Samor~ 0 Shelby Tube S.mple ,y, W,,'er L~'_"_':' "",' ,,"0_' •• ,.:,:,:":,,,:~~,:,:,:o:, ____________ ~
DESCRIPTION
MoISt. b,own to g",y. SILTY lin. to coarss SAND. few 9,"",,1 (SM). m"nge
oxid.~on. moUi1ng
Salu"'led. brown to gray. SILTY ""e to coarS. SAND. few g"".1 (SM).
orango ID:i<I"~oo. mOm,"V.
Wei, gray, SILTY ~ne SAND ISM), fow fins gravel.
Moist. blue-gray. SILTY M. to ""''''$B SAND (SM). few fine gravol.
BolIom oI.,p~"t"" """'0 ,I 21_S 1eot
!Il 2" 00 Split SpOOn Sampler (SPT) m 3-00 Sp"! Spoon Sample' 10 I< M)
,1ilI ""_,, ~"mOI9
o No Recolt<!ry M " MolslUre
IJ Rlog S.mple ";] W.Ie, Level () o Shelby Tub. Sa'nple:': Wale' Level at time "f dfllli.-.g IATD)
Blows/Foot
Loggod by: MT
Apptov.d ~y_
,
DESCRIPTION
MOist, Qray 10 brown, "nil to medium SAND, tra"" .111. mOltle~.
MOISt. red-b"""". coor",
WO! 10 saturated. red·bfOl'll, SAND.
100,.1 to wet, Ilgtlt Qray. fine In m.doUm SAND.
Mo"t, brllWn'9ray, fine 10 ccarse SAND.
G""'lly at 11'.
~," •• ,. •• ,~--~ - ----Tiii---------.------I
EIonom of ""pOOiOoo ""'log at '8" """
UgI1t ".p.g .. 11O'.
2" OD S~lil Spoo" Sam~ler (SPT) 0 No ReOO\'6ty M _ MOI,tue<>
l" 00 Sphl Sp''''''' S"mpl~r 10 1\ M) U 1<;09 Samp'" '¥-W.W Lo"", 0
Grab Somole 0 SI>"lby Tub" Sample 'f-Wa",r Le.-el at lime of dniling (ArD)
BlawS/Faat
Loggod by: MT
Appf<>lted by:
,
"
DESCRIPTION
Moist. gray. GRAVEllY
Moist. gray •• ~ty flne
Moist to wet. gray. 'I~y lin. to medium SAND. Wltl\ lin. gravel.
Moi.~ ,;ray •• llty Rno to medium SANO."1I1 flne gravel.
eo_ """'*""""" boong .. ''-" .... ugO! ... """" .. ~.
rn ," 00 Spilt SpOOn Sampler ISPT) m J" 00 Spilt Spoon Sample, (0 &. MI
51 Grob Sample
M-Mo .. tu,,",
.7. WaW Lovelll
Wale, level at "me of dolling IATO)
Blows/Foot
LogoOd b~' MT
API',,"'.d by:
,
DESCRIPTION
Moist, g",y, ~06 10 medium SAND, trace floe grave!.
GravelLyat e'
MOI.t to wol W<'Y. ~"" to medLUm SAND. lraoo flno gravel.
Bottomo' "'''''''''''' _" "-"lee' UijI"O _""" 10'.
2· 00 Split Sp<lon Sampler {SPT) 0 No Recovery M • Moisture
3· 00 Splij Spoon S'mpler (0 & M) Il Ring Sampl. :¥. W.ler1ewl ()
r._h ~Om"'~ 0 Shel~y lUbo Sampl.:f Walerl..e"",1 at ~me of drllkng {ATO)
Blows/Foot
Logoed!>yo MT
Approved by:
,
DEVElOPMENr
First American Title Insurance Company
2101 FourthAve, Ste 800
CITY OF RE~~~NlNG
JAN ! , 2!J25
RECEIVED Seattle, WA 98121
(253) 471-1234 -Fax(253)6n-S808
GGA Architects
31620 23rd Avenue South #207
Federal W3Y, WA 98003
Attn: calvin Gasway
Re:
Buyer:
Seller: Renton School Dist. #403
Title Transmittal
Property: 1700 Northeast 28th Street, Renton, WA 98056
Enclosed please find the following, per your request:
• Commitment for TItle Insurance
•
May 17, 2004
File Number: 4209-361918
Should you have any questions or need further assistance, please contact the undersigned. We
appreciate the opportunity to serve you.
Sincerely,
Shari Workman
Title Officer
5W!JJL
'mm No. 14
""b<I,,,,,,on Gu"."'''''
I
Issued by
Gu.r.ntee rh' 4209-361918
Rrst American Title Insurance Company
2101 Fourth Ave, Ste 800, Seattle, WA 98121
Title Officer: Shari Workman
Phone: (253) 471-1234
FAX" (253) 671-5808
form No. 14
~bdl""",n Gtwaote. (4.'D-7~)
Gu"'"nlee ~,4209·361918
P'ge No.; 1
First American Title Insurance Company
LlA81UTY $
$
2101 fourth Ave, Ste 800, Seattle, WA 98121
(253) 471-1234 -(800) 238·8810 FAX (253) 671·5808
Developer Services
Fax No. (253) 671-5813
Shari Workman
(253) 671-5834
sworkman@flrstam.com
SUBDIVISION GUARANTEE
1,000.00 ORDER NO,:
350.00 TAX $ 30.80 YOUR REF.:
First American Title Insurance Company
a Corporation, herein called the Comp~ny
Subject to the Liability ExcluSions and Limitations set forth bekm and in Schedule A.
GUARANTEES
Renton School District No. 403
4209·361918
herein called the Assured, against loss not exceeding the liability amount stated ~bove which the Assured
shall sustain by reason of any incorrectness in the ~ssu"'n(es set forth in Schedule A.
LlABIUTY EXCLUSIONS AND LlMITA110NS
1. No guarantee is given nor liability assumed with respect to the validity, legal effect or priority of
any matter shown therein.
2. The Company's liability hereunder shall be limited to the amount of actual loss sustained by the
Assured bec<lU5e of reliance upon the assurance herein set forth, but in no event shall the
Company's liability exceed the liability amount set forth ~bove.
3, This Guarantee ;s restricted to the use of the Assured for the purpose of providing title evidence
as may be required when subdividing land pursuant to the provisions of Chapter 58.17, R.C.W.,
and the local regulations and ordinances adopted pursuant to said statute. It is not to be used
as a basis for dosing any tr<lnsaction affecting title to said property.
Dated: May 12, 2004 at 7:30 A.M.
F<><m~. 11
SubdM~OO G""",o"'" (-I-l()-]S)
SCHEDULE A
SECOND REPORT
The assurances referred to on the f~ce page ~re:
A. Title is vested in:
Renton School District No. ~03
GtJorant"" No.: 4209-3fil'lB
f'ogeNo.: 2
Th~t ~ccording to the Company"s title plant records relative to the following described real
property (including those records maintained and indexed by name), there are no other
documents affecting t<tle to said real property or any porltlon thereof, other than those shown
below under Record Matters.
The following matters are excluded from the coverage of this Guarantee:
1. Unpatented Mining Claims, reservations or exceptions in patents or in acts authorlzing the
issuance thereof.
2. Water rights, claims Or tit~ to water.
3. Tax Deeds to the State of Washington,
4. Documents pertaining to mineral est~tes,
DESCRIPTION:
Tracts 47, 48 and 49, C.D. Hillman's Lake Washington Garden of Eden DIvision No.1, according
to the plat thereof recorded in Volume 11 of Plats, p"ge 63, records of King County, WashingtOll.
TOgether with th<lt portion of Abandoned PaCIfIc Coast Railroad Right of Way adjacent thereto,
except the southeasterly 15 feet lying easterly of the West line of said Tract 48 produced South.
Except that portion for State Highw~y 405.
Except county rwd.
Except that portion conveyed by Recording No. 9506120~13.
Together with Tract 50, CD. Hillman's Lake Washington Garden of Eden Division No.1,
according to the plat thereof recorded in Volume 11 of Plats, page 63, records of King County,
Washington.
Together with the southeasterly 15 feet Iymg easterly of the West line of said Tract 48 produced
South of the Abandoned Pacif~ Coast R~itroad Right of Way adjacent thereto.
Except county rood.
APN: 33~2!O3310, 334210335, 33~21033S5, 3342103356, 33~2103357 and 33~2103358
Focm No. 14
,ubdlVi_ G""" ..... (4-10-75)
RECORD MATTERS:
G"",""tee roo,; 4:r09-361918
P-'9o No,: 1
1. Liability, if any, for pro-rata portion of Real Property taxes which are carried on the
King County Tax Roll" ~s t~x account no, 3342103310, 334210335, 3342103355, 3342103356,
3342103357 and 3342103358, ~re exempt.
2. Special chilrges in the amount of $5.00 for each of the alloW! tax parcel numbers have been
paid,
3. Reservations ~nd exceptions, including the terms and conditIOns thereof:
Reserving:
Reserved By:
Recorded:
Recording Information:
Miner<lls
R.E. Culver
June 16, 1948
3812074
4. Easement, including terms and provisions contained therein:
Recording Information: 3812074
For: Power lines
5, Easement, including terms and provisions contained therein:
Recording Informati<m: 6717938
In Favor of: Oty of Renton
For: Slopes and Sidewalks
Easement, including terms and
Recorded:
Recording Information:
In Favor Of:
For:
prOVisions contained therein:
NoW!mber 23, 1970
6726574
Puget Sound Power ~nd Light Company, a W~shington
corpor<ltion
Electric transmission and/or distribution system
7. Easement, including terms and provisions contained therein:
Recording Inform<ltlon: 7102010227
In F~vor of:
For:
City of Renton
Utilities
8. The terms and provisions contained in the document entitled "Agreement ~nd convey<lnce Re:
Sewer lines ~nd appurtenances"
Recorded: April 22, 1971
Recording No.: 7104220504
Easement, Including terms and prOVisions contained therein:
Recording Information: 7508110437
In F~vor of: Northwest Qlblevision, Inc.
For: TeleviSion cable facilities
form No. 14
Subd,viSoon (;uao-.nt .. (4-HJ-7S)
G, .. "",,,. ~: 4209·361918
P"'Je No.: ~
10. Relinquishment of ~II existing ~nd future rights to light, view and ~ir, together with the rights of
access to and from the State Highway constructed on lands conveyed by instrument:
Recorded: Man;h 30, 1956 ijnd february 21,1%7
Recording No.: 4678766 and 6141802
In favor of: The State of Washington
11. Easement, including terms and prO'lisions contained therein:
Recording Informaboll: 20011030000516
In Favor of:
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PlIget Sound Energy, Inc.
Utilities
INFORMATIONAL NOTES
A. Ally sketch attached hereto is done so as a courtesy only ~nd is not part of ~ny title commitment
or policy. It is furnished solely fOf the purpose of assisting in locating the premises and First
American expressly disclaims any liability which may result from reliance m~de upon it.
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DE:PT. OF ASSESSME:NTS
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First American Title Insurance Company
2101 FOURTH A~ENUE. SUITE 800 • SEATILE. WASH'NGTON 96121
(206) 728-0400 • ,·600-626-7716 • FNt 1206) "'6-7219
COPIES OF DOCUMENTS
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Statutory Wammly Deed
,m ,,",,',," MY ~~l'''E~, who 1. 1d~"olc$l "ith Roy E. Culver ond
WRY CULVEIt, hlo "'ife -
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'."od, •. ' ""'". _F .. ","", .. RENTON SCHOOL DIST~ICT NO. I,OJ
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1"" Dortj"n 01 Tr_'et 50 of ~ill""'n'5 Lol<e W 8.h'L~tOn Gilrcih oi _~"n
~ddition to 5eHcle :'0. I .c~ording to oil. ,lat. "ecorded in VQI, II of
; loc" D~~' f.J J.n hin~ Cuunty, \I •• hlngtDn, iyi.\~ Oet"'e.n a strolght ,
hnp be~in"lllg on ,h~ nor[hl<ut.rly line of .o\d tracl et R point 1S0 f~e,
suu,h"""terly of 'h~ 0l0., northerly cor.'.r-t~Heof, .od <unning [nenO"
su"<hHly [u a pu,o' on the south lin. of said or'ct, ai.t.nt 210 fe~L
"'oS< of ,h .. ~o_"the~s< OO'n~r t"p"~~f, O"~ t~" ,~u'hprly producrioo of ",~
"'."' Uno ul rUe' :,g of .~id ! 10.; l'<lG,,'f~EH wi'n th~t .d)oidng lortian of tile .ou,h.as,uly 15.00 feet in
cj~tt. of 'ho ci~),' of ".y 01 the P.cifjc Co." R.R. Company, l"'~ b~, ...... n
'0," nOrtherly. coduction of 'he .~.tet"\y line of "ala p<crr.iscs ."~ t~o
<ou,herly ~,oduc1.;o" '" tho "€st Ji'" of .old Trac' I,H.
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Statutory Warranty Deed
U.URENC~ R. FIFER "nd RtfrH L. F:rFER, his wife
r ... "" '" ,,_ ... ", .. ,.~ ,,' l"EN OOLLARS
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'dditio" ,,' , •• r:L. ~'o. 1 .~oorcjn~ ,0 tn~ :., r@ooT~d t;, volu= 11 oj
"ioes, ,~.;, .• " Lo KJn~ County, \I •• ~ingt"n, descrlb.d.s [011""'3:
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"""inning .", 'he '"00< northerly ¢O~ner 'hereM; thenoe SOuth"""to<ly .'l~n~ the oon"""S<<'rly line of .. l~ bl"ck, 1>0 fHO; thpn~~ .outhorh
to ~ pulnt On "-.0 'u~':' 11"~ of .o!,' tUet ~O to 8 p01t'~ 10) '~et """'
"I the .outh~"ot eo~"or theroo,; 'h~ncc .s .. along ,.1<l south linc 10;
','ct; thono" north" ... terly &Ion~ 'he Nst line of <aId eTS~t. l84.5 feet to the. "In, of ~ep,'nnu,~.
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Th.t por~fon of Troct SO, Htll~n'.
~.tth No.1 according to the ~Lot
King County. II .. h1ngton, ducrlbed
Paroel "II"
u~ \luhlnS."" Qord"n of Eden Addition to
rae","ded ill Vol ... 11 of ,Ian. p.oge 63,
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II<!g1nn1n8 on the ncrehIN,ted, lin. of utd tract. 60 feet .outm.es.erly
of '~e ID<In noHheriy ~orq.r .!>ereo!l tbence • .,.,._.tnly olong odd north.
weatedy line !i(J feet; ehence '(luchedy to. point on the ."uth line of
•• 1d tr8ct 50, 210 fee. weo. of the louthe •• t COrner thereOf; thenc" e •••
o'cmg utd .""th liM 1O~ f.",; then.e north..rly to tbe ~o1nt of beginning.
Parcel "8"
Thnt portion of th •• outhessterly 15 feet In ",fdth of Coluohla ond Pugee
Sound !\/Iilway right of way ly~_~g Bouthw, ... erly of • line which bears Mrth
2'"15'00" _It from 8 f'"int on the non!;,;:=tedy "f iio1J l~dct :;0, ""!Oh 1.
north 6a*45'OO)"' ~ ... , 380. ~ feet fro .. the interuetl"" of the north ..... terly
line of SOld ruet 50 And tile loutMrly ~rod""tlon of th ~Ot lu,e of Traet
u, uid oddition .nd northuotedy of the northerly Itoduct1on of the "'e" line of the abOVe M.cri~d Poreel "An
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1I""OOOS" Cl'C-'-'-'" ~I~OCOU"'.' .. ' I
nns INSTItUl'[NT, "",de tt.is 2lstdo,y Qf _-".-" •• 'Y"-______ 19ku.......;
by lIId ~otween and
IIantaI SctIool D:i8trlct No. 403 and .,L-____ . ____________ '
____________________ 'and ;
nerelndter called "Grllltor(s)", .~d the CITY OF RENnll, a ""'l~ .. ~l eo'1>orott""
of King County, lIMhlngton, llerelnafter ~.lled "Grllltee".
1IITT1E5SETH,
'I'Ilet poo"uon of Tlcact •• 8, 49 _ 50 .."",.."-r ..ttl> po"ucn of .lley <1:1>4 the
aI> __ d~ •• P.S. IIy d¢>t-of .... ay ."""rdiJl.q to plat of C. O. H!UAIm" Lolc ..... ILiA¢<'<'
G&rdea ot _ )..1:01.01"" "". I., nocru:do4 10 V"I. ... n of pl.ata, _ 61, neordo of
lUng County. IIUlW>~, doocribe4 .. foU.,...,
CO-,,1og at the $ou~ '1uartor oo=er of So.cU<m 32. ~p 23 IIGrtI>. """9" ~
I ... t, 1I.!t., tbooce IIorth &g' 03' 45" lIut .01 ... , the Soutb 11 .... Cf ... 14 Hcti.<on. lO.~
foot, ~on,," lIort.h l' 14' 10" w. •• 25.02 _t to u.. Moni> l1noo ot R.B. l$th Street
&no!. ~o true po1Jrt of h<lqionil><j of th~ Tract "-noaaner <I .. <>rUoed, _00 ~Unuin~
Mort.h 1" U' )()" _. 110.72 toet, """""" North SS" e' 30" I ... 5.00 _t, thaD ...
Nort.h l' 14' 30" ..... 10.(10] f •. at, th..,,,,, solrth 88' 45' )()" "".t 5.00 _t, -""
IIorth I' 14' 30" .... t n.lU tut, tb.., ... North 62' 19' 00· But 201.62 _t to tt..
so_.tarly ~ of ~"".,.nc:k pl. R.E., tMDoo ""rtb l6' 19' 03' ... at oJ.cmg .. !<I
-,,¢no 15.00 het, tJ""",. $oorth 62' 19' 00' .... t, 211.n feet, thenco s""~ '" 14'
:>0" UlIt ol21.21 het to the IIo.tb .arq1D of aud N.B. Uth Street, theo,," soorth
8'.1" 03' 45" E .... t along sai4 1Mr<Ji.n 15.01 feet PO the _ point of ""~""'i.ng.
Tog<other with 4 ~orary CtlRstructlon ease""nt described as:
said te~orory eon$tl'llctlOtl .. se ... nt .hall ", ... In In fcrce dIIrln9 constructlOft
.nd ""til <uch tl'" "' the utllitle< and .p~urten.n"". ha •• been accepted for the
Qperatlon and ... lntenaRC-by the Grantee but not late~ than
Said h~retofo", ""ntlood gTloUe, ttl: SlICtencrs or lutgnS. sh.ll
"no. tile rlg.t, w1thout prior nottc. or proctfld1ng .t 1 .. , It such tt •• IS
Illy be llI!usury to enter upon said abow descrtbod pl'Operl,)t for tile pUJ'1lO"
of constr\"tlng. ~.tntatnln9. repairing. aHerin; or .. o:cnstrvctlng saId
utilH,y. Or INking Iny connections t~.e .. w1th. Without Incum.g any l!gl.l
Ob11,lttons or ~iab!1tty th.re'o ..... proylded, tIIat Iud! CDIIStructlon, .. In-
tit" ng. repalnng, .1l:erLlg cr .... COo"l.tl'llcttan of such utl111.)t shlll be
Icc"..,lhhed In such ...... ne,. thU the prtv.te t""ro_nu nlstlnl/ln the r1~t
rl~t{s)-nf_"'y ,h.ll not be dhtu<'bed or d_91d, or In the ~"'nt tho,lI Ire
dhtuMd or daoaged, they .. Ill be replaced In IS !jIIIIod. ",ndltlon 15 they .....
l_dllle1y before tile Pr'Opt""·ty ... u e~tered '.!POn by tbo Gfolrltee.
The Grantor .hall fully use and enJC)I tile "o .. dllcr~bed p .... heJ.
Including the rlg/'lt to retltn 1/1. right to us. till SUrlle!! 01 Slid rl!111t-of-w~
H ,uen lISe does not interftn! ... ith insullatlon and .. 1n.tenanO!! of tile utility
Hne. ~ow .. r. tile grantor sh~l1 not en!ct bulldlngs or .t,.,.~t""" ever. ,.,drr
or ~cr"". the right.of· ... ay during the exhtente of $udI utility.
STATE OF WASHIHGTOII
COIJH'! OF KiHG
runntng with the lllld and shall be bind-
.... and IsslgM. Granters oo .. ".,.,t that
propertl •• and that th~ hi .. I good and
'"' "., --------'--------'------------"., and' ____________________________ __
0.. tu. lLstbJ <)l J..-ry ,191~ I>ef __ • tboo .. _nipo~ ••
!to>tOry Pllbu. I" ond f~~ tboo Stot8 <)l W •• hl~totI. ~ .. 1}' " ... t .. 1011'" IDOl _ ...
ponoo:.oII, .",".ray iOoger 1. ~ """!tIeIby _!By
to .. _ to be tho h",lldent and Se<:ret:aty • nollP""tt .. l},.
ot --. Sd>ool DLotrict No. 0(0) tllo .~tlOll tbo' ....... "" tboo
to ... ,o.lat; h.tr_"t, ..... u"-ledleO u .... ld "' .. .-at to .. OM free IDOl
volu" .. ..,. .~t OM "".0 of .. .., ~""poI".H"". ror OM UH_ """ 1*0_0 tban'"
_nU",,". lad 00 .. 1.11 ..... ~ tbo' they are ".\:110<1_ to .nn •• ,be 0Ii4
In ....... U 'ad tbot tho Hel .ttu.~ h ,be .orpoil"~te ... 1 of odd eorp""nJ.oo,.
WtnIaII~ IIJ boM oM otUde! "01 bouto .Uil<cd tboo Ny .nII }"O." 111
'bI. entUte .......... wrltten.
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EXHIBIT. ·A·
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tllHECTOR
RECORCS .. E'-EOT'~'~S
KltlG cc~~rY. '1.';,11.
,.
'0" ..
AGRE_N'I" A Nt.> C(:tIWYAJICII RE
S"&R UIIIS Am APl'DR'IEII'JICIIS
RE"TO~ scHOOL DISTRICT "0 .• DJ
",
__ • __ "-".'-"'0"""'-_________ ,,10 dulrou. of 'n.,.UIn& "ru1"
'bo CD.' .DoI up"O" of c"".uucUon ol ouch bop,,,,,,, ... n ... n •• t.o 1'" .. 1 ......... '''>vin~
in .In<! t .... p,,,,,loi,,.. •• 0.1 •• no. or c .. p ... 261 or tbo 1959 So .. lon. \.av" ' ...... lIy
.. fund to ... '_01011'01 ".tor anO So .... FaollIH .. Ae<, (ROI 35,91.010 ot .oq)"; ."~
_~. ____ ,,-,.,',.,',',',-,' _________ _'h "Ullng u ~J all ... c~.to
N(V Tl!llREPOIlB, IT IS III_I AQRUD Am COI'BR\1'!l<D lIT AIiD Bl1IIBI!M """ AI'QIl<SA ID
"".nES All pol.!.(Jl3,
,. ~""~."O,~,~ •• "'.~ ________________ ' ... nby a.~ ... J •• ",. a"~ ".,..""""t.·
,", ___ """."""""",'-____________ Jh ... by "8<0', .nd eo-o .. '" tG .,."" 'D "ve
'" $~i,oh ,e~O" !I0" .crOSS a pD,·,;"n of " "OS (e51"""1
'.,.lon '0 ';cn",ool., er""i"" <I,. oor.'ulio" 0' 58 "0' ," s.c. ,e',. o')-,u I"HrQxi~",. "ig"_"y E:"~i""",'s ".doc.
,·}1dO) .
.... ul .. !o"' 0' ". City o' R.nto ••
" , '
" ..... T
C.A.G. 1"190-11
EXHIBIT "A"
Thonton School District '403 -Agr~ement • Conveyance Sewer ~ines
Lo."' D~scr!Ptio"
Gardon Df "dun, Divl.iQO "no ., Seotion "_24_5, King
County. W"hinpoo>.
I
_____ ~"""""""O"~"'L ________ •• .. ,,·· . ... ,---""""".,,,,.,,,,,'-------------
.... 'on h .... \u. h"", on,! l!.~lHty in ~"Me<"O" t •• ", ... !!h.
" 'O""",.g,",",,," ________________ ""tber ouHHu ...... 'ho 10"\
$ JO,llS.69 B ... ~ on •• tJ 'ohl ,~""h' ,,' •••• , , ... , .. t/ 0<
,"" <0", ~~r 'fon' li ... ) foot (atd""-""t tho 1""N'lj~.bl. , •• tl of •• 1<1 Imp'''''''''""'
.... " be cmpl."'" tG •• '",mine ,"" P'O""" .. Im""' ..... n' ML ____ "~"'."'~" ••• ,."~ ____ _
by.",. ",,""r of ro.l ....... ~ho did not contd~"t. k tho o.il''''' "," o' ,uoh
Imp''''''''''''"', .nd ~ho ,u".qu.n<ly ~io"". to lOp 1",0 0< ~oo' unto Of U" .. 10 fadli .....
• 11 ,.bjoo. '0 .~ h~, 'nd ofJinllnOO. o[ tho City 0' 'en'o" and tho p" .... h{"". of tM.
thi. A~, .. "",nt ~Il) b. dUly''''''''''. '0'" to"" 'be t01.1 ac'''' 00.' ' ..... lUf.
'. _""".""'"~"'"'L ____________ ... '"by .~ro ..• 00 < .... "" ... t. 00fl,,*,.
aM .11 'pp",ten,n.,., ."" .«,,,",or'., ' •• ",tn, '<eo ,,.'" .... <I.I~ on_ oneumbe.n"" ~
'by p.rty ~~""'''''''''') City 'g'._' to 'OC"O' ""d ~.i",.I" •• td f~p,o"""",n ... pOt. of
it. pte,,", •• ",",y '"'''' ,y,'~m "pC" ,pp,oo.l tI.""of by tt .. City &"" .... 0< ond .n.,.
_______ JO"""~"""""'J, ____ 'f", .... ' .g ...... nd
Oe~~ •• o,\ Blll.", SOl., ,," """ ,.",eo""', "', •• ,-'''". to fully "",t H.l~ 10 .... CUy
~.'c~',."""O,'~""~ _________ fu ..... t
,---".
to up into. hoo'up ""'0 oC U"" ony ,u,h ,.dlitt~. oc _"o .. lon, lk ••• of d"dn~ 'he
ouy."" _" .,hOc , ..... 10.' .04 e".ng ..... d. 0" ........ d f"" "0" top. hookup 0< "' ••
o. lo. t"" .. nit .. y ...... ,.dIllio' conot,"<'.d in c ....... cHon thoT<w['~, ,ho "",,,,,nt
TOq.l .... ~y tho pt •• ilion. of ,hi. con'rOot, All 0, •• "",, ,~ <o<€I""d hY , ... Cl'y .hall
boo 1>"'. 0'" ~y 1t "n •• ' ______ "o''"'~"""""~. ______ """ .. '''6 t • .." Or '~1o .1"' .... "'
.. It~u. .to'l (60) .... afto< ... ""lpt 'ho ... "r. Fu<tllo",ono. in" .... ny lop. _"'p .~
"""""otion '0 ~ ... into 'ny .uch contt ..... ,.dUty ... itllo." ouch pO_no t.o~i.,g l>oen
in tbe foo'lUy 0< cigM 0< ~'y. and .'opo" of .uch ~nout~od •• d .... or .. l 00 "'~O,,.d •
.. lU • ..,t any liabtHty on tho pOrt or t ... City who"~T. It 10 fUt"'T tgTOod o.,.j
c.,.. ... t.d ,bo. upon oxpi<l.I"" of thO ...... of t~h .gro ....... to-wl"'. __ ~,"O_"'<O
IT .. d.t. !>ore"'. CI.y ,h.lI ... u"".r"" f.<tho. <>l>1\;I.dQn to <"I!~<t OT ....... oy fu,tho,
.... "".o, ________ O"C'O"C~'"'"""''_ ________________________ ___
The .o<-l,ion of til_ ctty ",,>!'_r Q. bh .nth •• hod ",pTO .. ~tatJ'" In
top .n'O •• oh imp,,,,,,, .... ' •• ~.I! h. rln,} and 0."01.,1 ... In ,II r',!>",lo.
'. It,, f."h., 'e,.od ."" un ..... ood 'hat 'h' .fo",d"",,,,d Imp'''''''''''"'"
t. "" undo" ••• " • .., p.i. '''' by ________ JO""'C~"O""C~,~ ____ _
1. 1'I>i. Og''''''''n' ,Mil .. plO"'~ I", ",oord "lth ,he "ing """ •• y ADd"o,',
ofli", immod!.to)y upon ..... ","" ' ...... f ,n" ,tt 0"" .of roco,di'g .... 11 ~a tho
.... p.""h1H'~ of ___________ J""c'~'O'C,"C,."'O"C,'~,. ___ _
• Pl1
. , .
~tAm CF VASH1N,lTCfl ) , ..
COOI!'N 01' ~Jm )
•• en 'hi. 21<"" or FObruory,~. 1>o10r< .. , • .., undo<.lgno~, •
rot.ry PubU~ in .nd fo< tI .. S .... of W"hJ."S'''''' duly ._{Ooion.~ ."" ...om
Sl po.noo,lly "!'I"'"od hrbar~ S. L.lly OM H.'. Jo~o.o~
'" "" known t. "'" th. ~<.,Id."t .nd Socretary • ".poo<t~.,y, o ol: Reo'o" School Dio<. ~o. ,03 " ••• <P"''''O" 'hat ••• ""t.d .110
"'l f''''IOJ"g I ... tr_nt, .... 'd_lodg ••• ho .. id I" ........ nt t. "" t~. r<oe '1Id
" v.Junta,.,. oct ..... <Iud .r .. 1.<1 <0'1'0,"""". for .1>0 u ... ond ",,'po'" ''''''''In 3: ~. aOod on ooth ..... d oba, t.hey or" .~thod_ .... to o_<l>to thfl •• I~
r---.;~~~~ .• "" <I,., U'" ... 01 oUr." (. 'M o.rl'''-'''' ,.at of .. I~ <.rpo,ation,
.,::, : "~' -.:',"JlITl'l!SS..,. baM 'n~ oIliol01 •• 01 ll<rot~ .Hlnd tho ~., .... yen In L. ~'~1. "" .. lUt •• t •• b ...... ".Uta ••
\~~>
STAn IF "ASEING'roII ) , ..
COO:<iY a' KIte )
-' -
.",. G"n'Of, ",",oo Scho.l "h,Tic, '.03, """'''"' V"hinO''''' ,,,.by otan," "'.
c"" .... ,. "." ....... C.blov1oiot>, '"c., db. Yol.p"""p, ... 1 ... "10,. V •• hlnl'''''
CO,,,,,,"<1",,, 1>141 Pod" ••• ,......, South, 9aIS6, •• t. (01 I"", wI' ......... nt
........ t In< ,,,. "0'" ",d pdvl1'g •• Dd .y,h.<i" ,0 'on.t"'''. 'opTOV., "l"'II •
.. , _In,.In ,.I.vloloo .... ,. l.e.u" •• ""do<. th'''''~, "'0'" ... "poD ",.,
po,tl .. 01 ''"ot 41 1,1n. to",",I, of St". HI""," 401 'n \.0 •• Wooh'"I'''' c.o,d ••
of ..... , DJ.I ...... 0. I." ..... " 'oc""" II, T_.Mp 14 "o«h, ...... I h.t, Couo.', of .i.O, .toto .1 W •• hln"oo •••• th., ~l<h tho U&h' 01 ' ........ ,. "'d 'iT ... ,,_ •• ,. p'Optt'Y •••• "n. ..... 1."_,,
"" ....... , b"'. 'hto. (]I f.o< on .o<h ,,"" of 'h. f.n ... , ••
.... "bod u... " ••• "", .... ,h. Hl c."',, ., ,h. """ of '.S""" I. T ........ II H."h ...... I h .. W.~., th,n« 'D"h
6! ~1"1"",." .. on. tho """.b liD' .1 tho SI>'t of ,.«1"" 31,
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• otth 1011"8" .... ".71 ,~." ,hon<o Nottb 0 '8'16" w.o<
194.00 .... , .hooco .otth ! 11'24" .... 'I •.•• foo" .h.nco
""0 .. ,1, 11 f ..... ,.11 ... to th' P, .... ,,' s .. to H'iJo~" "0 •• 01
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IN Wl11<ES' \/HE ... ;, etanto, boo ... ,y •• d t.1o ••• tT"""",, .. of ,b. f"",, __ nth
d.y 0' J"ly ,lOll.
STAH 01' WASH1.(:1{IH """"n O' K,"C ••
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-•
Primed: 01-11-2005
Payment Made:
CITY OF RE~TON
1055 S. Grady Way
Renton, WA 98055
Land Use Actions
RECEIPT
Permit#: LUA05-004
01!111200511:26AM Receipt Number: R0500163
Total Payment
PO #230384
3,000.00 Payee; RENTON SCHOOL DISTRICT 403
Current Payment Made to the following Items:
Trans Account Code De"cription
500~ 000.345.81.00.0006 Conditional Use Fees
5020 ODO.345.81.00.0017 Site Plan ~pproval
Payments made for this r&celpt
Trans Method Description
Payment po ~30384
Account Balances
~rans Account Code Description
302] 303.000.00.345.85 Park Mitisation Fee
5006 000.345.81.00.0002 Annexation Fees
5007 000.345.81.00,Q003 Appeals/Waivers
500B 000.345.81.00 0004 Binding site/Short Plat
5009 000.345.81.00.0006 Conditional Use Fees
5010 000.345.81.00.0007 Environmental Review
50ll 000.345.81.00.0008 P"el.im/'rentative Plat
5012 000.345.Bl.00.0009 Final Plat
5013 000,345.B1.00.0010 PUD
5014 000.345.B1.00.0011 Grading & Filling Fees
5015 000.345.81.00.0012 Lot Line Adjustment
5016 000.345.81.00.0013 Mobile Home Parks
5017 000.345.81.00.0014 Rezone
501B 000.345.B1.00,0015 Routine Vegetation Mgmt
5019 000.345.81.0D.0016 Shoreline Subst De ..
5020 000,345.81.00,0017 Site Plan Approval
5021 000.345.81.00.0018 Temp Use or Fence Review
5022 000,345.81,00,0019 Variance Fees
5024 000.345.81.00,0024 Conditional Approval Fee
5036 000.345.81,00.0005 Comprehensive Plan Amend
5909 000.341.60.00.0024 Booklets!~jS!Copies
S~4) 000.341.50.00.0000 Maps (Taxable)
5954 604.237.00 00.0000 Special Deposita
5955 000.05.519.90.42.1 Postage
5998 000.231.70.00.0000 Tax
Amount
3,000.00
AmOunt
2,000.00
1,000.00
Bahnce Due
00
.00
00
.00
00
.00
" 00
.00
.00
.00
.00
00
00
00
00
.'0
00
. "" .00
.00
00
.00
.00
00
• RENTON SCHOOL DISTRICT 403
30QSW 7TH f
Cop Fund
C : 08/18/2004
P.O. No. 230384
Vendor No. 15353
CITY OF RENTON
Finance Department
1055 SOUTII GRADY WAY
Renton WA 98055
,T • RENTON, WA 98055
Purchasing 425-2(M-22SO FAX425-204-2258
"ountlr;g 425-204-2395 FAX 425-204·2383
Purchase Order No. 230384
Page: C of ,
... ~ .. --' '_ ... _-_.,' _ ..... -Ship To: KENNYDALE ELEMENTARY
10 1700 N.R. 28TH STREET
RENTON WA 98056
~-.... ---.. ,-,-..... .,', '.' ........ -.. --,-...,...-... ~ ..
Mark For: 41-00 Kennydale
Purchase Order No. 2)0384
,_ ... '_ .. ~i' = .. to ... _ ..... oIa' ...... _ ..
le_,..lta_ .......... Ok, "± ...... _ .. _. ...... _ooWo._"'_ .. .....,._.
Quant Unt
Item Ordered Mea Description
Unit
Cost
Total
Cost , . 1 lot Permits and miscellaneous fees
related to the Kennydale
Elementary Replacement
Project.
10,000.0000 10,000.00
NOTICE TO velDOIl&: As. pari 0I'1his C1lIIInd of SAle -. _ S<:booI DisbId
ondlllo _, ~ is ~.ogrnd u..t I"')'mON lor .. """'" _ ~
... ' r "0i):ren<Iete<I_""moIIecItoIlleVenclorOl''-a. "· .... Iollle _ _ sIJ11!A1 days ofrecelpl of goods __ or...-l1-""" -.
.lok:I .. _ .. _.
* ~ Tax not
Page Sub-Tot
PO Sub-Total
Add'l
Tox
PO Total
(MoIeriaI &oIetyD.doSlleots) be_
Encumbered
10000.00
Computed on Item
10000.00
10000.00 .cc
.cc
10000,00
• • • •
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ENGINEERING REPORT
T2chniooi lnfarmation fuport
K"'myd~le Elementary
, ,
Oe"""",r 14, 2001 \
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PREPARED FOR:
Renton School Dislrkt #403 ,
__ '~>2"".O Nc, 4',;'e'~'m"~--C~------
Renton, W A 98055
-Mr. Jack Stracke
PREPARED THROUGH:
McGranahan Architects
2111 Pacific A venue #1 00
Tacoma, Washington 913402
Mr. Tom Marshall
PREPARED BY:
COUGHLINPOR.TEJ>.LUNDEEN
413 Pine Street, Suite 300
Seattle, Washington 9B101
Phone: (206) 343-0460
Contact Mr. Tim Brockway, P,E.
•
COUGHUNPORTERLUNDEEN
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• • • • • • • • • • • • • • • • • • • • •
Section
TECHNICAL INFORMATION REPORT
Kennydale Elementary
Coughlin Porter Luncieen Project No. C040055-02
December 14, 2004
TABLE 01<' CONTE:\TS
I. PROJECT OVERVlEW
Page ,
General Description".".". . _________________________ ,_ ........... . ..,1
Existing Conditions ....... ".......... _________ .. _._ ....... ". , ........ , __ ,1
____ ._ .. _.2 Proposed DrainageSystem _, .. ,. __ . ____________________ ._ .. _." ........................................ ..
II. CONDITIONS A,\fD RllQUIREI;mNTS SUMMARy, .......................... . _. ___________ ....... 2
King COWlty Surf,,,,e Water Management De,ign M."ual Core R""luircmcnls,.......... ., ______ 2
Special Reqniremenls: ,.. ............... ___ ..... _ ..... _,...................................... , .. " " ., __ , ____ 3
Project Specific Requirements .......... , .. , .. , .. , ... ___________________ ,,_............ .. ............. "." ________ 3
m. OFF-SITEANALYSlS ... , _" ........ " ......... " .... "."."." ......... " .... " ...... ".,, _____________ A
T~sk 1 -Study Area Definition and M.ps
Task 2 -Resource Review . _________ " ................. ".
Task 3 -Fidd Jnv~stig.,~on
TdSk 4 -Drain.'ge System o.,'-Cripllon ""J Problem ScrC('ning ........................... .
IV SlI'EllYDROLOLY_
PartA -Existing Site Hydrology.. ______ "..... .. ............ ".
Part B -Developed Sile Hydrology ""-' __________________ "_",,.... .. .......... ..
Parb; C and D _ IlyJrdulic Analysis _ ........ " ...... .
PartE-Water Quality.. .. ............ ".
Stand,ud Requirements ...... ,." .. , " .. , .,, ___________ ...... .. ................. .
_____ '''".,'', .. , .. , .. , .. " .. , .. , ... ,." .. , ... 4 , ,
_..4
_ ___________ "" ............ 7
" .. ,7
____ "" .... 8
"" ........... 8
...9
__________________ "_,, ........ 9
V. CONVEYi\:o-JCE SYSTEM ANALYSIS AND DESIGN ____ " ... "." .......................... . " .,, ___ 11
Stand~Td Requ;Ternen'" (based (m K($"'TIM):. ___ .................. . .. 11
On--site Conveyance ......... " ...................... " ____________ .. _"..... .. ... " .... ".... ___ " ......... " .. 11
VI_ SPECIAL REPORTS ANDSTUDIES _____________ ....... ". . ............ "." ................ ________________________ " ... " .. 12
VII, BASIN AND ml;fMUNITYPLAN AREAS__ ........................... " .. _-' __________________________ "".12
BasinPlan(I.3,4--1) __ ...... 12
ConununityI'lan (1.3.4-1).. ____________ "" ........ 12
vm. OTHER PER/I,ITT5 .................................... " ......... , ,, ____________________ "" ....................... " .................. , .. ,, ___ 12
lX. EROSION AND SEDTh-IENTATION CONJ'ROL DESIGN ... ,, __________ .. 13
Standard RequiT('IUcnts ............................................. " ___________ .... . .. ...................... ,, __ 13
X, BONDS .... , .. , .. , .. , .. , ........ , .. " .. ,., ..... , .. ,.... ______ ,,,., .. , .. , .. , ..
XI_ MAINTENANCE AND OPERAll0NSMANUAL. .. "." ....
Standard Maintenance .... ,
COUCHLINPORTERLUNDEEN
..,: .. " ..... ,, _____________ .. _ .. 14
, .. _ .. ___________ .. _". ,14
."-________________ "" ...... " ........ 14
Kennydale E1c'ttlli\t:lty SchOOl
R""ton, wa.<hinglon
• • • • • • • • • • • • • • • • • • • • •
I.JST OF fiGURES
BGURTI
Figure 1 -Vicinity Map
Figure 2 -Existing Site Dminage Map
Figure 3 -Prop05<'d Dr.mage System
llSTOFTAllLES
Table 1 _ Existing Site Conditions Area Breakdown _
Table 2 _ Developed Site Conditions Area Breakdown_
Table 3 .SummaryofDelenlionSyslem ....... .
Table 4 _ Summary of Water Quali(y System.
APPENDICES
APPENDlX
Append±< A Figures
AppErlWx B Supportutg cakulation5
• Detentiun
• Water Quality
• Com'eyance (no! provid~d at this tlltle)
• Backwater (not provided at th;, lime)
• T.ES,C. (not provided at this time)
AppendixC c;"oteclmical Repurt
Appendix D OjX',ations and Maintenance Manual (nu! provided at this time)
COUGHLINPORTIRLUNDEEN Kenn)'dale Elementary School.
" Renton. Washington
.,
, ..... 8
, .. ".9
" .. 10
• • • • • • • • • • • • • • • • • • • • •
L PROJECT OVERVIEW
General DescripllOn
The following Teclmical Information Report (IIR) provide" the technical mformation and design analysis
required for developing !he Drainage Plan and Ten'porary Erosion and Sedimentation Control Plan (TESC)
for KelUlydale Elementary SchooL The design for Kennydale Elementary was based on the requirement,; _,et
forth in the 1998 King County Surface Water Design Man".) (KCSWDM).
K""nydal~ El~mt"'tary School is k>c ... tetl at 17no NE 28" Street in Renton, Wa.hin);t{lf1 (see Figure 1 -Vicinity
Mop and ~igurE2_ Arm Map)_ The school is In ]{""ton, JGng COlmty inSection SW 32, Town,hip 24N, Range
5E, Willamette M~rjdjan, and is located within th~ I.ake Washington and May Creek Drdinage Ba'lnS_ The
""i,ting ""bool c(]n""ts of ty,;o building., surround~d by parking to south, paved play or""" tn the north and
cost and pL,y fields on the nmthcrn portion of the site. The terrain is fairly f1~t, falling generally north and
cost.
Th~ Renton School District is proposing the removal of the eXISting Kennydalc Elementary School and
re~'ted utilities followed by the COllStruction of <In enillely new school within th.is sile, along with ass.odaled
parlGng, infrastructure, 11,e existing structure wiU not "'main operational dunng the CDn5tructi(]n f"oja:t.
The District is proposing to COn5truct a new Iwo-,tory el~menta'Y .. hool along with associated parking 10\5,
bus loading areas, hard5cape play, and a service yard. The existing pl.y field will not be altered as par! "I
th.is project.
Tll~ to~u developed site area for the proj<'Ct is approximately 6.6 acre". Th~ proposed building h.1S a
footprint of approximately ~7,500 squar~ le<-t. The new building, parkIng are .. and site improvements will
add apf"'lXlmately 26,600 square leet of imperviou. area to the site,
TIle drainage basin spilt on the proje<:t site necessitates the design 01 two separate storm water conveyance,
treatment, 'll1d storage systems, Storrnwater runoff within the Lake Washington Basin will sheet flow to a
combined water quality and detention pond at U,e south west COrner of the site. Two separate water quality
systems will be COn5tructcd for the May Cr",k Basin, The storm waler nmoff from the southeast parking lot
will be TOuted to a bioftltration ,wale at the ,,,uth,,,st comer of the site, Stonnwater hom the northwest
service yard wilT be rou1<"d tn a "'" ter quality pipe to the north. Both of these systems. and the rernalflder of
the colleered run"ff from the MdY Cr""k portion "f the site, will be routed to a single detention ,"ault. The
discharge point for the M.y Creek lla.in will an existing catch basin located in Kt-nncwick Pl.ce NE.
Existing Conditions
'1 h<' existing KennyJale Elementary School occupies approximately 6.64 acre., and ",nsists of Ihe elementary
'Ch<101 and ....... ocidted structures, playfields, and impervious parking lots and play areas. There are prcsenUy
no stormwater detentIOn or waler quality la<;ihties on the site, The project is located along a localized
geographic divide, which seporotes the property into two drainage bd,ins, both of which ultimately drain to
Lake Washington Uuough different routes. The western portion of th~ site, approximately 1.2 acres, dr.ililS
west, across 1-405 artd along surface streets wcst of the fr""way ~nd then ultimately down a ravine which
drains below l.1I<. Washington Boulevard, the GeneCoulDn Park property and then enters Lake
Woshinglon. Th~ (,,,bern and nmtheITl portion of lh~ si(e, approximatEly 55 ""res, drains north.. through the
existing school site, across Kennewick Place NE and then through a tight line system owned by the CIty 01
Renton that discharges to May Cwek. (See F.:<i'h'ng Site Drainage Map).
CouGHuNPORTERLUNOEEN Kenny.w. EJ"""",""Y Sd>ool
Rentoo. W .. !unglOn
• • • • • • • • • • • • • • • • • • • • •
Proposed Drainage System
The proposed KerulydaJe Elementary School will consist of th~ buildin/:-paTkmg lOG, .nd hardscap" play
orC"S. Dr.,ill.gc improV('ments w!1I include curbs olld catch basins on-site to direct flows to either the Lake
Wa>hingtun DralIklge lJasltl or the ),[,'y Creek Drdina!;" U"in
ror the wcst basin, flow control per 01}' SI;o"d.rds and the KCSWDM will be provided in an open detention
pond. TI\e pond will also provide the required water <Judli!:y treatment, having the water quality pond
storage provi<led below the de[ffition. 1his portion of th~ pond will have water in it at all tim~'S, although
some water depth fluct".tion m.y OCCUT during dry periods.
The othkHc fidd Or<'O "I the ~asl"m portion of ~w site will remain lUldislurbed. The remainder of this basin
which contains the b",1dmgs, the harUso.pe play and the parent (cast) drop off parking 101 "ill flow first to a
biofiltration swalc. and then into the detentton vault located beneaUlthe hardscape play area. TIle se"ice
yard area north of the school building will have its own water quality storage pipe for treatment FoUuwinr;
the treatment .nd dctmtion aJ] flo"." from the developed portion of the eastern basin will be released at
allowable flow levels into the cx~'tinr; conveyance system in Kennewick Place NE.
The detention "dult has been sized to meet all of the requirements of the KCSWDM Section 3.3.2 Level2
flow conlrol. The flow duration frequencies discharging from the detention facillty "ill be at or beluw the
peak !low rate. of the existing basin for rtll storm events modeled bctw('('(l and including one-half of the two-
year storm and up to the SO-year storm.
II. CONDrnONS AND REQUIREMENTS SUMMARY
Th", s".;bon will ddJ",,,, the requirements set forth by the Core and Special Requirements listed in Chapter I
of the KCSWDM
King County Surface Water Management Design Manllal Core Requirements:
1. D"5c!w.rge at a naturallooation (1.2.1):
The existing and p"'posed Jischarge points ,l!"C COnClUTCnt. Developed flows from the Lake
Washington DTOinar;e !la,in will be conveyed to the <"Xisting storm system to the west across 1-405.
JJevdoped flows from the ",lay Creek Drainage Basin will be conveyed to the existing catch basin located in
Kennewick Place NE. Plea<e refer tn Appendix Il for this information.
2 Off-siu Analysis (1.22):
ThL, slIbjectls covered in Sectionsill and IV. A u,vel1 do"n,treamanalysis has been performed.
3. flow e,mtrol (1.2.3):
One detentton vault designed per the Stream Erosion protection (Level 2) standard, will provide
flow control for the May Creek Drainage Basin. One detention pond, J""igned per the 1990 King County
SBUH standard. will provide flow control for the East L1ke Washingtun Drainage Basin. Thi. subject is
add",,,,,,,d in Section lV.
4. Conve1}anCe facilities (1.2.4),
This information and calculations are presented in 5<-<:tton V. (not included at this time) Closed
pipe .y.tem~ and one biofiltration swale have been proVided for on-~itc stormwatcr conveyance.
COUGHLINPORTERLUNOEEN K<nnyd.>!o Et.:"'''ntary Sd>ooI
Renton. Waslungtoo
• • • • • • • • • • • • • • • • • • • • •
5. T empOr~l1j Ero.iOly'Sedirnenlation eanlro! (1.2.5);
The f'TuJ~d wlll Comtruct a ,er;es of sediment controls to .,ddress the 'pecific conditions at the site.
FurthE'T dpt,il ;s p"('S~JltC'd in Section DC.
6. Mainte"'l1JCt' ""d Operation (1.2.6):
The p"'p(",~d ,tmm drainage system will be oWTled. operated and maintained by the owner. A
maintenance and opecahon nlanual (an be found ill Section Xl of this report. (not included at this time)
7. Tinaucial G,ummtees alld Liability (1.2.7),
The owner and contractor will obtain all """,ssdry permi'" pnDT to the bcginning of construction.
The owner will be responsible for required bonds.
B. WaterQ"ality(1.28):
This project will provide one waler qUdlity biohltral:ton .wale, onc wowr quality pipe. ond one waler
quality wei pond on the sile, designed inaccordancewiU1 the KCSWDM.
Special Requirements:
Special Roquircm<'l1t #1. Other AdoptOO Area-Specific R"'ltllren,ents Section 1.3.1
• Critical Drainage Areas (CDAs): Not ApplicablE
• Ma_,ter lJr~in.ge Plans (MDPs): There arc no knO"~l master drainag~ plan. covering the. pTO)""t SIte:
• Basin Plans (BPs): TIl~ project is located within the May Creek Basin Plan and the East Lake
Washington Basin Plan. There are no area specific drainage review thresholds for this area.
• Lake Mandgement Plaru(LMl's). Not Appbcable
• Shared Focility Drainage Plaru(SFDPs): Not Applicable
Special R"'lU\r~m~nt 11'2. Floodploin/Floodway Delineation, Section 1.3 2:
Thi., pf(~e<t is nnt wlthin a designated flood plain.
Spooo I Requirement #3. Flood Protection facilities, Section 13.3:
Not Applicable
Special Requirement #4. SOlLrce Control, Section 1.34:
A modern, covered and solid bottomed (no leah) garbage <.h.lrnpstcr will be provided by the City's
solid wa5te provider to this sileo Renton School District will C<lordinate with the provider to emphasize the
need for properly covered and """led dumpsters for use on the site.
SpC'Ciai Requirement #5. Oil Control:
Traffic is anticipated in this area. One biofiltration sw"le and one water quality pipe are being
pro;ided for water quality and will adequately treat all runoff as required by the KCSWDM for oil and any
other naturally occuITlng pollutmK
Project Specific Requirements:
There are no proJect SPCCllC requirements.
COUGHUNPORTERLUNDEEN Kot"'ydak E1"""",""Y Sdtool
RenlOl~ WasJunglOO
• • • • • • • • • • • • • • • • • • • • •
Ill. OI'F SITE ANALYSIS
Task 1 -SlLldy Area Definition and Maps
Se~ Figure 2 for drainage sub-ba'h1S, discharge points from the site antI other related inform.bon,
Task 2 -Resource Review
a) AdoptC'dBasinPlans
h) I1asin R~connaiss"nce ","nUllary Reports:
oj Critical Drain"S" ArMl>1ap>
d) l'l(J{)upJamjfloodway (FEMA) Maps:
eJ King County Soils Survey
f) Wetland Inventory Maps:
g) Sensitive Are"" Folio.
Task 3 -Field lnvestigation
May Creek IMslll doe. not have"n adopted ba,in plan
East Like Washinghm Ba,in _ no""
See Att.ched appenciic,,"
Not in criH<"l Drainage arcas.
Site not in lOll-yr Floodplain
Solls information has been included.
Sec 'SensItive Areas Folio',
Site is not "ithin any scnsitive areas.
A site visit has been madE to the project ,ite to gother infOITIlation induding a Levell Downstrean, Analy,i.,
Please refer 10 the disLu<.,;on bdow.
Task 4 -Drainage System Description and Problem Screening
Up.tream Dr.inage Review
The Kennyuil.l~ Schnol .ile is located near the high poinl of the slllrounding terrain_ The NE 3!J<h Street and
Kerul€wick f'1ac~ NE ),'Taue, are lower than the ,it" to U,e north and east. 1-405 is also lower than the sile to
the west. To the south the ground is higher than the Kc,mydale ,ite, but flo", from this direction enter tbe
conveyance system in NE 28th Stn;et and are conveyed wcst as described below. No upslIeam flows
therefore enter the school property_
t.evell Duwn.treom Drainage Review
North drainage;
On July 21" 2001 the following ob_'ervations were made while researching the downstream drainage
towards the north of Kennydale Elementary School. The w"aU,er was good and the temperature WaS
approximately 85 F. The exploration started at about 1:30 and ended around 5:30_
We began our field investigation at the downstream ""d of the ~-"stern b.sin. north of KcJUlydale EIementuy
appwximatcly a quarter mile, near May Creek and JOlles Road_ After reviewing City "",,,d" it was
assumed that !here were two dral"age pipes in the ravine that dlSchargc flows from Kennewick Place NE
into the creek below. After crossing to the south side of May creck we began following !he drainage rourSe
upstream. At the point of our Ct,,-,sing, the Creek has built up a sedimeut and rock bar a.nd turns to flow
more ~a'tcrly, towards Joues Road before turning west again, parallel to tbe road_ This sediment bar is likely
a ",-,ult of the bend in the C,,,,,k cousing the sediment to fall out This bar d"l not appeo:r to be depo,ited
from any side channel ilrtd there was no side chaJUlel present in this vicinity. The lower discharge of tbe
drainage course into MdY Creek Deeurs approximately 50 yards downstream of where we first crossed :\:lay
COUGHLINPORl1'Il.lUNOEEN , Kennydale Elementa!y &hooI
Rffitm. Waslung'on
• • • • • • • • • • • • • • • • • • • • •
C, eek. At this pmot the 11ow, "ere approximately 1 to 2 mch", d""p and 18 to 24 inches wide, flowing clear
and st~ady_ TItis side dlmmei from the ravine discharges Iluough th~ bonk of May CT"~k through dense
vegetation. No sedinlent pilillle or sediment bar development w ... v;,ible in r>l.y c, cck .t this point. This
drea upland of May Creek is very broad and flat, and it took SOme effuct!{) [ncate th~ act,,~1 dr.mage WUl'SC.
W~nmtinued up.lTeam, to where the ravine begins and the drainage course is more dcfmcd and
constIalllcd in thIS steeper t<.>rrain. Flows WeT" cno,;stent with those seen below, and were approximately 1
to 2 inches deep, 12 to 18 inches Wlde and 'tcaddy flowing. The chaImeJ here was cobbled on the bottom,
with no visible cvidcn("c of in.tability or incismg. VIle were unoble to get close to the western drainage pipe
lh.ll apparently was the former d;.oharge frnm Kennewick Place. Thevege~ative growthstLrroWlding May
creek and the ravine was thick and well established.
Traversing the ravine "d; dU'fictLIt due to the thick vegetatJon and steep slope', Along the base of the ravine
and approximately 10 yards past a large tree fan it was Impossible to maneuver a, the area was
approximawly 2·(""t dccp highly organic wet .oil (dark brown. silty) surroWlded by extremely steep slope'
From tlus point It WdS irnpos51ble to continue further up,tream This bar of organic m.ltcrial may have
migrated dovm the ravine from the apparently former culvert discharge from Kennewick Place. The dark
color and fine texlure of this scdlment re.'embled urban roadway sediment accumulation and not channel
sedim..nts from erosion. The discharge pipe was not able 10 be located from the botblm "f th~ ra\'in~ but
appeared from the Oty drainage m.p to be 'pproximalely 50 feet further upstr""m, and several feet abov~
Ule floor of the ravine. Along tlus r("('{)rm.issarlCe no tulderculting or incision WaS visible in the channel.
Minor migration of sediment w.s viSIble a. would be expecled from a native channel in ,te"P terrarn
transitioning to fLIt.
We !h..n attempted to find the discharging runoff in the ravine wa, from the top of !he ravine just off of
Kennewick PlaIT NE. TIle President of the homeowner's association for the townhouses ab()v~ the ravine
provided u< ,,;!h '()m~ backh'Tound of the "ystem m tn~ '1'('a "nd WflS aware of a 24-inch CMP that
discharged flow ,mto a bed nf rocks in the ravine. TheCMPwas localedand appeared to be the previous
main discharge into th" ravine and down toward May CTCek. From along the condomUlium property edge
another attempt to locate the pipes was mode. We traversed down theslopc but again thcslopcs were too
steep to get down to the point of the culvert and the thick v~gctation hid the groWld cau5lng UI'l5ure footing.
The pipe was never localed from above the ravine.
Following !his field walk and ailer further investigation with City records staif, we were able to determine
that d flow splitter or divet5ion ,lructure WflS added upalream "f the fonner ravine discharge poin~ with a
pipe running down the side of Ule hill above May Creek and discharging at the base. We did not encotuller
this pipe in our investigation, however it appears that this was a City installed diver,ion in order to likely
improve stability ill the raviru> and prevent erosion that U,e form.". culvert Iikdy cau.sed due to its position
high above the base of the ravme and the steepness of the ravine itself
West drairmg"
August 6th 2(){J·1 the weather was in the Imv 70's and it was rainmg all morning long. Arrival onto !he site
was at 1:30 and ended at4;OO. [t rdined periodicaUy during the sile visit
The runoff m the Kennydale Elementary Schooh westem basin eros""" in a 12 inch pip" beru=ath 1-405 and
then etJte", the City ,treet conveyance system west of the fr""way. City records show the pipe beneath the
freeway entering the conveyance system in NE 28th Street neor Meadow Avenue North. West of this point,
the piped madwdY ;ystem dLScha:rges into the upper porhon of a ravine at U,., vichtity of /I.!eadow I'ldCe
North. It is unclear from City nwps, but the flows appear to continue further west, perhap' from a flow_
splitter to the corner of Park AvetJue and NE 28". From this loc .. tion, the ravine was macccssible due to the
overgrCl"'-n vegetation in the ravine. further down.,lteam on 26" Street,. in a recenUy developed area, a
bridge or very large box culvert crOiSses the r,wiI,., .md stream. Again the en~rc orca is overgrown with
vegetation and the creek was inaccessible. The creek was visible on the upstream ;;de of the bridge, and
there were no apparent sign.q of sediment deposit, indicating apparent slability up,tream of !his point No
erosion or incision was Vlsible at this location either. and the large culvert clearly has sufficient capacity for
COUGHLtNPORTERLUNDEEN • Kennydal, Elemenbry School
_hID. W","~mgtnn
• • • • • • • • • • • • • • • • • • • • •
any anticipated flows. "fhe bank leading dO"'Tl to the ravine all along its sides is very steep, roughly a 1f.t:1 or
sleeper slope and in some flatter places a ]:1 slope. TIlere is silt fence on the north and south sides of the
road near the bridge, apparently for the ongoing construction in the development. The decision was made
to .pproach the ravine from below wherever access could be found, find ony oth~r C(}n"trictions Or culv~rts
ond £\SSe"" the ravine for ,tabihty .t th,,,,e locations.
UpslrMlIl from Lake Washington Blvd atthe ,"vine crossing there is a large culvert which was covered with
dellse blackberries and was inaccessible. Along the north side of this ravine is a uUIity access road,
""tending a few hlUldred feet upstream along ilie base of the north ,Jope of th~ Tavine. Roughly 301) feet
from Lake Wa;hington Blvd we located 048" a!p~ulv"rt_ No "'b'Tl> of erosion OT b.nk cutting were p..."cnl
and th~re waS little sign of sediment accumulation no sign of sib'llificdnt f100dmg in the area above the
culvert. '1 h..,.e i. currently silt fence along the north bank of the cfe<'k, associated with the house "nnstruction
.md utility inst.,iLltion occurring to the north. There were also signs of recent trACk-hoe work in the area,
Upstr€am of tlu.< culvert there W.\S approximately 5(J fuet uf vl>ible "bannel that was well establIshed,
approximately 2 to 3 feet wide and appeared stable and clean along the channel bottom_ No incision or
evidence of in'>lability was observed.
Due to ve),'1>hItion on both sides of Lake Washington Blvd, both the d"wnstre.m ~'J1d of the road culvcrt and
the upstr<:'.m end nl the railrodd culvert were ina<:~",iblc. On the downstream side of Lake Washington
Blvd, on th~ we,t .ide of the railTOdJ !racks We were able to locate a 24" concrete culvert. The flow at tltis
locdhon was approximately 2--3" deep and 18_24" wide. No scouring ur umlercutbng below or around the
culvert was present. Bel<",,-this ru)vert the flow crosses into Gene Coulon Park,. in an area of trees and
grasses, and widens to .'pproximalcly 4 to 5 fcct, Minor evidence of streambed gravels being puslled around
by peak flows was present, but no visible signs of instability were noted Flnw' then continue to widen,
reaching over 8 feet .. doc as they (fOSS beneath the Park walkway at a wooden elevated walkway, through
dense ca.nary grasses, Further downstream approximately 30 10 50 feet the runoff reaches Ihe edge of Lake
W dShinglon, At this location th~f(' is a very stable sand bar from deposits carried downstream and no other
signs of in;ldbility or erosion at the shoreline itself. It appears that R .erie< of logs has been anchored at Ihis
point to perhaps cau& the setiiment to fall out through the stIlling of Aows before they enter the lake. TIle
"and bar appeared 10 have been there for some lime and did not appear tn be re<;ently developed, a, it did
not ""ttle Wlder weight and was wry compact n is possible however that this i" th~ ,..,,,,,n of wav~ actIon
froo, tlle Lake,
couGHLINPORTERLUNDEEN K.nn)"dal, Elementary SdIDol
Renton. w ... hington
• • • • • • • • • • • • • • • • • • • • •
IV. SITE HYDROLOGY
This section describes the conditions thdt contribute !n the ,I"rm water Tunnff valu"'l dnd mitig"tion efforts
proposed for th~ sileo
Part A -Existing Site Hydrology
The existing site hydrology cnnsi.TIl of an .existing school and a<;socialed improvements. There are existing
established storlll water runoff conveyance lines, howev~r, there are no control or water quality tre.,tmellt
facilities on the SIte. The total sile al'<'o is 6.64 acres. TIle existing site conditions arc ShO""' in the atlarhed
Existing Site exhibit, from a docurn""IM field survey. Th~ site ,,<;rUT, on a natural hlpographkaJ ridge,
which ""parales U", properly into two dromagc basins, both of which ultimately drain to Lake Washington
through different routes. The westem portion of the site, approximately 1.2 acres, drains wcst, oc"", 14D5
and along surface streets wesl of the freeway and then ultimately down a ravine which drains below 1.., ke
Washington Ik>ulevard, the GeneCoulon Park property and then enters L>ke Washington. The eastcmand
northern portion of the site, approximately 5.5 acres, drains north, throLlgh the existing school site. across
Kennewick Place NE and !hen thlOugh a tight tine system own~d by the Oty of Renton that di",MTge''lu.1:
above o.nd to May Cf{'ck.
The May Creek pnrtion of the site contains an existing play field !hat will remain undisturbed during this
proiect and therefore will not be accounted for in the detention and water quality system design and
,n.lysi" as shown in the Develop"d Site {'xhlbil, The field contains approximately 1.84 acre,. Th~ dL'tmbed
portion of the May Crrek Bosin i, ~ 6 acne';
A small portion of the East Lah Washington Dramage Basin ",.-ill not be developed in !his project 50 that
'portion will not be accounted for in water qltality and detention calrukltion." as shown in the Developed Site
exhibit ..
The existing site conditions are summarized in Table 1 bel"w
Ta~le 1 -F.tisti"s Site ConditionsArca Breakdown
Dramagc Basin
Lake Washington
MayCrcck
Field Basin
Undisturbed
L>ke Washington
Land Cover
Imperviolls Area
1'.,-rVioU5 Area
Total
Irnpervwilll Area
Pe"ioU5 Area
Total
Total Disturbed Site
ToW
Total
TQ!alSite
COUGHLlNPQRTERLUNDEEN
Area (acres) Description
0.848 Parking lots, concrete woIks --,",','1'--Lantlscaping 0.89
,~
'" %,
lluilding9, parking lots, hardscape play --cCo,--landscaping. athletic fields
""
'BoO
'"
OM
Athletic Fields, concrete walks
Existing Kerutydale Elementary Site
Kennydllle EJemen"'ry Sch",,'
Renton. Wa,hington
• • • • • • • • • • • • • • • • • • • • •
Part B -Developed S,le Hydrology
The existing basin split on site w;11 be maintain~d to the grcatc,t ""tent p'lSsiblc. Where grading on the
proposed site does not "llow certain arc .. to drain to their rcsp('(tivc basin, an equivalent arca basin swap
will be mdde. A cornpdlisoll ofTahle 1 and Table 2 "ill reveal that th~ developed condition provides a
reduction of the impervious area within the East Lake Washington Drainage Basin. However, due to the
P"'P'"t><! !'lading and drainage system on the site, an equivalent area swap could not be enUrely preserved.
TI,e proposed system will add approximately 0 3-1 acr~_' to !hi' E •. ,! Lake Washington DTainag~ Ba.;n. Thi,
added area is not induded in the allowable discharge calculations. however, lhis will ensure thai although
a minor basin transfer is proposed. dischargmg stormW.l[er runoff rates "iII remain less than or equal to the
exi~hng allowable release rales, consistent with the 1990 SBUH KCSIVD.'.1 detention slill1dard.
The currently developed athletic fields in the May Creek b .. ,;n al the north end of the Kennydale school site
and a small portion of the East Ll kc W.."hington Drainage Basin along the frreway wall will not be
developed in !his project so those portions of the .ite "ill not be accounted for in watcr quality and detention
calculation •. PIcaS<) refer to the Developed Slte exhiblt for tillS mformation.
The developed site conditions arc ",urnrnariz~d in Tabl" 2 bclow.
T~b1e 2 _ Developed Sit. Conditions A",~ Breakdown
DrainagG Basin
Lak~ Wdshington
May Creek
Field Basin
Undisturbed
I.ake Washington
Land Cover
Imp~rvjoQS Arca
l'ervlOlls Area
Tolal
ImpcTvi(lU" Area
F~rviolL' Area
Total
Total Di.turbed Site
Totlll
"l"o~o.l
Totlli Site
Parts C and D -Hydraulic Analysis
1.01 Parking lots. concr~le walks
0.21 L1ndseaping
1.22
2.28
lJ.H9
3.27
lluildmgs, parking lots. h.rdse.pc play ---f,,--l.ando;cdping. athlebc ftdd.
'"
LM
0.31 Grass. concrete walks
'.M Existing Kennydale llIementary Site
The proposed drainage systems fur the new developoo condition of the site will cons",t of shed flow across
asphalt parking to a water quality I detenti,m pond and " conveyance system, a biofiJtration .wale, a water
quahty pipe, and one detention vault The detention vault is centrally located on the eastern 'ide of the site.
The vault has the capacity to detain 10,000 cubic feet of stormwater runoff.
COUGHLINPORTERLUNDEEN Kcnn)"dill" El<nt<ntary &hcd
_. wosiungtoo
• • • • • • • • • • • • • • • • • • • • •
The .t"Tm water detention ,-alllt has been designed and analyzed per !be King COWlty RWlOff Time Series
lev~l 2 Plow Control stamlard as requir~d in the May Creek bosin. A V-vel 2 facility is dc"ign~d to "PI~osc
slormwaler runoff generated from developed site conditions at dumtions that do not exceed the JUT .tion;
from one_half of the tI<;o-year and up to lhQ 50-year s[orm5 under the existing site conditions, per the 1998
KCSWDM. A summary "I th~ detention facility is 'hown in Table 3 below_
"
The combined stormwater wdter quality I detention pond in the East Lak~ Wdshington ba5ln has been
designed and analyzed per the 1990 King County I>!,\nual-SBUH method matching the developed 2, 10,
dnd tou year peaks wiUllhe existing "'SPfX~VC return p"riod peaks .:nd allowing for a 30% f.elm of safety.
TI\e intent is to protect flow carrying capaCIty o"d ]i'nit erosion within the down,tream conveyance system.
A summary of the detention facility is shown in Table 4 below. Due to the smill sue and nalure of the
developmClll in the F..a.t La\..e Wiilllingtun Drainage Il ... in, the .ize of the d~tEntion pond IS controlled by the
volume necessary ror the water quality slorag~. The live "tmage (detention) provided in the pond i5
oversized for 11m d~v,>lopmenl.
•
Part E -Water Quality
Standard Rcquiremctlts
The", are truce leveb or water quality facilities delin"" in !he 1998 Surface Waler De.ign Manual in !he
Water Quality AppIimIioIlS Map. Th~_<e level, are as follows:
1. Basic Water Quolily "[r"alm",! Areas
2. Sensitive Lak Trealmcnt Area,
3. &gi"""lIy Significant SIrrOnl Ro",h r.-eat""n! Area,
COUGHLINPORTERLUNDEEN , Kennyd<lle E1emenoary 5chool
Renton. washmgto.<,
• • • • • • • • • • • • • • • • • • • • •
ThJS pmJect will provide water quality in accordance wltn basic water qll.lity r"'luuements of the KCSiVDM
("l'C~on 6 55.2)_ The acces, drives and parkmg lots Wlil be subject to vehicular traffic and will therefore
req LOire brunc "'at,'r quality treatment. Waler ql~1lity will be provided Ihrough one biofiltra~on swole and
one 72-lllCh watrr quality pipe. In order to allow the use of a biofiltralion swale on the heavily ronstraincd
site il was neeess.ry to lImit it,; ,ize_ To adtieve fltis, the non-pollution generating surfaces of the building
roof, hard""apc play "J ~.", fire aLLess drive (gated, low 1I.,e) are rouled direcUy to the detention vault
bypas.shlg the blofiltrahon swale.
The waler quality too:,k (pipe) ha; been designed to treat th~ stormwarer runoff from the service area on the
north ~ide of the proposed school buildin!':_ The w.hoT quality requiT.,.j vDlume was ddermined from bask
Wt,t pood sizing and an equivalent volume was used tn ,l?.e the wet pip", Six inch"" of sediment storage
wIll be provided in the pipe. Sec Table 5 below for water qu.lity pipe infnrmati(ln.
The dead storage volume in the combiru>tion water quality I detention pond has been sized per the bask
pund requiremenls in King County. 'I he pond will corni,t of two cells, ,epa-Tated by an earthen berm. One
foot of s~diment "toTa~", will be provided in the first cell. Pond 'ide ,lupe' will be 2:1. The length 10 width
ratio at mid depUl ,,~11 ("x.ced th~ 3 to 1 length to width Tatio. The wet pond sizing calculations can be Seen
in Appendix B. A summary of the water quality pond is provided in Table 6 below.
COUGHLINPORTIRLUNDEEN
• • • • • • • • • • • • • • • • • • • • •
v. CONVEYANCE SYSTEM ANALYSIS AND DESIGN
This section disCllSSe.' the criteria that 'will be u",d to iIIlalyzc ~nd design the propo.'cd stllrm mnveyanre
'y,I('JIl,
Standard Requirements (based on KCSWDM):
1. Facilities must CO",,"!! 0,,, lOO-year flow witho"t overtopping tlU' crou~, 0/ the roadway, floodmg
building., ""d if ,'<ret JIow oc<urs it must p~S5 tllrough a drai~ag" easemrnt. The detention facilihcs
have been designed to convcr th~ loo_year developed flow or direct overflows away from buildings and
within street gull(,I' ,arabi,> "I harulling the flow.
2. New pipe .ystems and CtI/vl'rls must con~ey tire 25-year flow with at least Q.5 fed oj freelmanl. (1.2.4_1).
The convepT1<'e sy.Lems have been designed to convey the 25-ycar flow with at least [} 5 feet of
freeboard. CalcuiahuDS Me induded inApP"ndix B.
3. Bridge. ",,,st con".,y the IOO-year flaw Md pro1Jilfe " minimum v! two feet, ""rying ''P to six fret, of
clearanc. based on 25% of lbe mean chrume/ width, (1.24-2)(4.3.5-6, Nj A. This project d""", not
propose ~ bridge.
4. D,ai"age ditches ","st convl?IJ the Z5-y""r flow witlt 0.5 feet of jreeboard and the l00-year flow witlto"t
overtopping. (1.2.4-2). The,~ are no drainage ditch"" for this proposed development or in the proposed
frontage improvements.
5. Floodplain Cro.sings ",,,st not increase the base flood elemtion by ",ore tha" 0.01 feet [41 (8.1.01 a"d
sh,,1/ "ot rrJuce th' flood storage vol"",. [37(82A!l. Piers ,/,,,/1 not be co",trncfed '" tl,e FEMA
floodw"y. /4l(83.F.l)J. There are no nllocipt.ln ""."mg' associated ""th the ,,,,,,,truction of this project
6. Strea", Crossings s/,all rEquire" bridge for class 1 s/Teams that doilS not diM",b or banks. For type 1
and type 3 ste~tnS, oP"" bol/OI" culvms or ot/",r method may \>e used tltat will not harm the stream or
in!Jibit fish plis5tlge. [611(95.BJ1. There",~ no stream cf{l""ings associated with the construction of this
project
7, Discharge at naturallor",'ion is required and produce no significant impacts to the dowus/Tean,
propOrTIj (1.21-1). TIle proj<'C( will dlscharge to th .. eXl.'ting di""hargc location, A map >hmvmg the
speclfIc existing discharge location i> includ .. d in Appendix n (Figure IlIon page \l49), along Wlth
cakulation~ proving thallbe proposed discharge location will not worsen any cxistmg conv<-y.n(e
problems th.t may "",;sl downstream from the site. A minor shift from the May Crock basin to the East
Lake Sammamish \xI.in of Ie"" than 0.5 acres is requested. Detention and release rat"", however, are
sized to match tho'" from the original basin size, not the increased basin.
On-site Conveyance
The on-site conveyance system will consist of Type 1 and Type 2 catch basins, eight and 12-inch conveyance
lines, rn'o biofiltration swales and a stormwater detention vault. The ""pacity of the on-site lines was
evaluatc<l using the Rational Method and a Mannmg's-wsed conveyance spreadsheet If pipe capacity is
questionable, energy grade elevation ""II be evalu.ted using the Direct Step Backw.ter Method. The
convey,Ulcesyst~m has been deSlgneJ to provide adequate slopes and >iL.e.;, Refer to Appendix B for
convey.nce calculations.
COUGHLINPORTEI\LUND~~N
n
Kertnydole Elementary School
l<EntD", W"'bins"'"
• • • • • • • • • • • • • • • • • • • • •
Outfall,
L-,,"'XY {iis;ipatio1l is rrq"i,ed for all rmtfal18, rock omsiem protectioH at a ",;"i>nll"'. (1.2.3.3). The
wnvcyanc~ "plem pwpuseJ will discharge direclly to the public storm sysl~m where ~l1~rgy di8S;l'aH<>n
will not be pro,-,d~cl. CTh~ biofiltration ",vale will be provided with rock armor at all oulfall5 from pipes.
VI. SPEGAL REPORTS AND STUDIES
1. No "perial repoTts included.
VII. BASIN AND COMMUNITY PLAN AREAS
Basin Plan (1.3.4-1)
TIlere are no ba,in plan> that will impact this site.
Community Plan (1.3.4-1)
There orc no community plans lha! will impact this sileo
VIII. OTHER PERMITS
An NPDES permit will be reqUIred for this project
COUGHUNPORTEI\l.UNDEEN
"
Kenny'", I. fJemen""Y S<:~ool
"""~'" W,",hingam
• • • • • • • • • • • • • • • • • • • • •
IX. EROSION AND SEDIMENTATION CONTROL DESIGN
This .""Lion lists the requirement,' that will b~ used when de;lgning the Tcmporary Erosion and
Sedimentation Control plan {llSC plan} for this sitc.
Standard Reql.liTements
E"",;on,lSedim.ntation Plan shall include the following:
1. Facililies ",,!uired inC/ude; stabi/;"cd co"stn<ctW1I ""In","", sed;mrntatio" pond, i"terceptor swales,
filter fabric jmdng. a.2.5-1). 1 he project w,11 provide two construction entrance/ exits, Imck wheel
washes, filler fabrk fencing. a "~dim~nt pond, slope stabilization, catch basin protection and interceptor
swales.
2 Timing -For the period between November 1 (hmugl, MaTch I dist"rbed arcas greater than 5,000 5q"are
fect left ,,"di.</urbed fOT ",are than 12 "OU1'5 ",,,st be Cl>v<w! with ",,,Ich, sodd;"g, or pla.tic CDc'''''"g. A
constrod;(", phas;"g pIa" shall he provided to ensure that erosiotl <ontrol meusuns tire itlSttll/etl prior
10 cI,tlritlg tina grading. (1.2.5-1). Not<', addTCS5ing ~.ach of these items h.ave be.en placed on the civil
engine<ering plans.
3. Plamling -Plan .Iulll h",it tnbutanJ drainage to at! anm to be cleal"l'd and graded. Delineate dimen.ion,
stake a>Jd flug dearing Umits (1.2.5-1). The clearing Iunit,; have been mdical;ted {)n th~ Tl'5C plan. Notes
addressing thi.' item have be.en placed on the civil engineering plan •.
4. Re_vegetatio" -J{,_v"getllfe areas to be cleared tI, SOOn as pmoticable after grading. (1.2.5_1). Note.,
addT€"'ing this item have been placed on the civil engineering plans.
The TESC pldn for this project has bren designed \0 protect off-,ite properhes as well as tu minimize the
qoantity of sediment_laden water that enters the public storm system The following BM?". "ill be included
on the TESC plan for thi' project.
• CleaTly Jelinedted clearing limits staked prior to any construction actIVity.
• Stabilized construction entrances with a wheel washing st.1tion for trucks exiting the site All
material that is tracked off the site will be cleaned by sweeping
• Catch basin protcdl<ln will be U$~J on aU existing and future catch basins as they are inst.J.lled,
to reduc~ the .mount of sediment that can enleT the ,wTm ,ystem.
• Cover measures will be implemented for dishltbed areas greater than 5,()()O square feet in
aCCOT(lano~ with the King County standards.
• Tempordry sedimenl pond, will be included to allow the "pportunity fur sediment tu ;ettlc out
of on;it .. run<lff prior to discharging from the site. The punds WII! be excav.ted at the locations
of the final permancntS\orm wahoT punds, per Appendix D.4.5.s of the KCSWDM. The
sedimentation p,md .urfa"" will be siz~d ba.ed on the 2-y~or flows from the graded site, and
will comfortably fit within the hmils of the permanent ponds. This will allow final excavation dt
pru]ect ch'" to be minimized.
All corutruction debris "ill be pl amptly removed from the site \0 minimize demolition and construction
impacts tu the site. The contractuT will implement add,~on.1 liMP's as rcqlrired or recommended by the
Clty of Newcastle inspectors or other agencies as reqlrircd. This "ill help prevent demolition and
construction debris, waste material. fuel. oil. lubricants and other flllids from .entering the public sturm
sy,it= These measures arc shown on the TESC plan sheets ,hown in the drawings set.
COUOHLINPORTERLUNDEEN
B
Kennydale Elementary School
Renton. W.>hinglon
• • • • • • • • • • • • • • • • • • • • •
x. BONDS
Hond Quantity WOTkshe..t.
Bond quantity workshe<'ts will be included in thi' ""clion_
XL MAINTENANCE AND OPERATIONS MANUAL
Standard jl,laintenance
Per stand.rds set f(lTth in the King County Surface Water O""ib'll Manual, the owne, wUl maintain fanhti'-"'_
ScCtiOIlll of the Kmg C"unty Storm Waler Manag.ement D""ign Manual outlining th~ Operation> ilnJ
Maintenance of these facilities will be included in Appendix D
(nol included in fl,;,; report)
COUGHUNPORTSILUNDEEN Kcmydalo Elomenoary 5.:hoo!
Renton, w"huWon
• • • APPENDIXA
• Figur~l_ Vioinity Map
fignre 2 -Existing SHe Drainage Map • Figure 3 _ Proposed Drainage System
• • • • • • • • • • • • • • • COUGHUN P01UER LUNDEIiN Ken"ydale Elementary •
• • • • • • • • • • • • • • •
• i ,
c o
COUGHLIN PORTERLUNDEEN
A CONSULTING STRUCTURAL AND CIVIL ENGINEERING CORPORATION
• ;; Figure I -Site Area Map .1'---_________________ --'
PROJECT: Kel'lnydale 8ementsry lJchool "DE~SlG~N~ED~BY~, ~.~ .. '__ __ ~D~'T~E~, ---'12~-O~9~-O~4 __
• PROJECT NO. C040055:02 GLlEHT: Renton School District CHECKED BY: !bb SHEET OF
I P STREET _ SUITE300 SEATTLE. WA 98101 P: 20M343-0460 F: 206/343-5691
• • • • • • • • • • • • • • • • • • • • •
, , ,
I
413 PINE STREET -SUITE 300
-F'" Drainage Basil
COUGHLIN PORTERLUNDEEN
A CONSULTING STRUCTURAL AND CIVIL ENGINEERING CORPORATION
Field B&s~
801040 sf
175 Acres
OOB6Aoree
Ex Lata Wa Ba~~ {fa oosi;lnJ
Total 5:>280011
Perm 0039A,cres
IrpmIous 0842Ac,..
EI May Cr ..... B""n (far design!
lola! 156736.75 If
Per~OI.I9 167 Acres
h:perviOU8 \93 Acres
T~al 51le 664 Acre,
--",-'''-, \'
, \ , ,
Figure 2 -Existing Conditions
ilESIGNED ev: 588 DATE: lH19 .. Q4
CHECKED BY: tbb
SEATTLE. WA 98101 P: 206J343·0'I60
SHEET OF,=-=
F: 2061343_5691
• • • • • • • • • • • • • • •
: ;~!:E!
• •
COUGHLIN PORTERLUNDEEN
A CONSULTING STRUCTURAL AND CIVIL ENGINEERING CORPOftA TION
--",-
Field Bam
80'04.0 sf
t75 Acres
DOB6Acres
Prop Lake W" Sa", (lor desigril
Total 52280,0 sf
PerYi:luii tOn Acres
ITpervioos 0.21:) Acres
Prop May Creel; Basn (lor design)
Toial l5673675111
POUI 0.89 Aaes
~rviotJs US Aaes
TotalSrte 6.64 Acres
Propoood OutfeJ
To Maj Creek
Crainage B""in
Figure 3 -Developed Conditions
.c~ ________________________________ ~
PROJECT: Ke[Jffildale E1emenlary.~"ch~oo~I _____ _ ~ESIGNED ~L~,-_-,"Dm,_,,,,2",,"~,"04,,--__ •
" "
CLIENT: B!<nt9n ~ool Dis\ri~\,c-c=
SEATTLE. WA 98101 P: 20 343_0460
CHECKED BY: tbb SHEET OF PHOJ~CTJ!O, CD40055-02
f: 0/4_
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6.90
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237.90
238.00
13800.
14000.
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0.32l 6.750
0.00
0,00
Inflo'" Oc:tflow
Target calc
1.54 1.30 1.3~
0.93 '.*'.H 0.72
Peak
Stage
5.09
Elev
236.09 , , , , ,
o , ,
0.83 ...... *
1.10 _HUH
0.78 .. * .. u
0.90 ...... *
0.66 _HUH
0.75 .u ••••
0.74 3.50 234.50
0.69 3.41 234.41
0.61 3.22 234.22
0.56 2.98 23].98
0.30 2.18 233.18
0.29 2.07 233.Q7
Ro~te Time SerieB through Facility
Inflow Time Se,ies File,developed_tsf
Outflow Time Series File,rdout
Inflow/Outflow Analysis
Peak Inflow Discharge,
Peak Outflow Discharge,
Peak Reservoir Stage,
Peak Reservoir Elev,
~eak Reservoir Storage:
1.S~ CFS at
1.37 CFS at
5.09 Ft
236.09 Ft
10177. CU-Ft
0.234 Ac-Ft
Storage
(Cu-Fti (Ac-Ftl
10l77. 0.234
6857 _
7000.
6813 _
6442.
5959.
4364.
4140.
6:00 on Jan
8,00 on Jan
o . 1 57
0.161
0.156
0.148
0.137
0.100
0.095
9 ln Year 8
9 in Year 8
Flo'''' Duration from Time Series File;rdout.tsf
Cutoff Count Fyequency CDF Exceedence_Probability
CFS % % %
0.011
0.031
Q.052
0.073
0.094
0.115
0.135
D .156
o .1?7
0.198
0.219
O. ;:40
0.260
0.281
0.302
0.323
0.344
0.364
0.385
0.406
0.4:<7
0.448
0.469
0.489
0.510
0.531
52113
3148
1562
lOla
"" '" '" '" '" m
m
m
" " " n
" , , , , , ,
" " ,
B4. ~B5
5.134
2.547
1.660
1.464
1.058
0.791
0.719
0.429
0.282
0.217
0·202
0.117
0·117
o·on
0.034
0·016
0.011
0.007
0·005
0·011
0·008
o. all
0.016
0.010
0.010
e4.~a5
90.119
92.666
94.326
~5.7~1
96.8B
n .640
9a.35~
98.7S8
99.070
99.287
9~.4~0
9~.607
S9.724
g9.816
99.850
g9.866
g9.87S
~9.8S4
99.SB~
gg.~Ol
99.~0~
9~.no
~9.~36
~9.946
99.956
15.015
~. eSl
7.334
5.674
4.20~
3.151
2.360
1.641
1..12
0.930
0.713
0.510
O.39J
0.276
0.184
0.150
0.134
0.122
0.ll6
o .lll
O. 09~
0.091
0.080
0.064
0.Q54
0.044
0.150E+OQ
O.gSeE-01
O.733E-Ol
0.567E-Ol
o .421E-01
O.315E-Ql
O.236E-Ol
O.164E-Ol
O.121E-Ol
O.930E-02
O.713E-02
0.5108-02
0.3~311-02
O.276E-02
0.184E-02
Q.150E-02
0.134E-Q2
0.122E-02
0.llDE-02
O.1l1E-02
o.~g5E-03
0.913E-Q3
O.799E-Q3
D.636E-Q3
O.538E-03
O.44QE-03
• • • • • • • • • • • • • • • • • • • • •
0.552
0_573
0_593
0.614
0_635
0.656
0.077
0.698
0.718
0.739
0.002
0.013
Q.007
0.010
Q.003
Q _ 000
0.003
0.003
0.002
0_000
99.958
~9_~?1
~9.977
99.987
~~-~~Q
~~_~~O
519.5193
519.997
99.998
99.998
Route Time Series through Facility
Inflow Time Series File,developed.tsf
Outflo'~ Time serie9 File,rdout
0.042
o _02~
0.023
0.013
0.010
0_ 01 a
0.007
0.003
0,002
0.002
O.42~E-Q3
D.294E-03
O.228E-03
o .BOE-OJ
o _ ~7aE-04
O_~78E"04
O.652E-04
O.326E-04
O,1631l-04
O.163E-04
Inflow/Ou~flow Analysis
peak rnflow Disch~rge,
Peak Outflow Discharge,
Peak ReBervoir stage:
1.54 CFS aC G,OQ on Jan 9 in Year S
1.37 CFS at 8,00 on Jan ~ in Year 3
5.09 Ft
Peak Reservoir Elev,
Peak ReBervoir Storage,
236.09 Ft
10177. Cu-Ft:
0.234 Ac-Ft
Plow Duration from Time series File·.rdout .tsf
Cutoff Count Frequency CDF Exceedence_Probability
CFS. t % ~
O,Oll
0.031
0.052
0.073
O. O~4
0.l15
0.135
0.156
0.177
0.198
0.219
0.240
0.260
0.2Bl
0.302
0.323
0.344
0.364
O.3BS
0.406
0.427
0.448
0.469
O.4a~
0.510
0.531
0.552
0.573
0.593
52113
3148
1562
101S
"" '" m
on
m
m
m
'" n
n
%
" " , , , ,
" ,
" , , , ,
•
84.985
5·134
2.547
1.660
1.464
1·058
0.791
a .719
0.429
0.28<
0.21 7
0·202
0·117
o .ll7
0.091
0.034
0.016
0.011
0.007
0.005
O·Oll
0·008
0,011
0·016
0.010
0·010
0·002
0.013
0.007
B4.985
~0.1l9
92.666
94.326
95.791
%.849
97.640
98.359
98.788
99.070
99_267
S9.490
S9.6D7
99.724
99.S16
99.850
99.866
99.878
99.884
9~.88~
~~.~Q1
~~.90~
99.920
99.936
99.946
99.g56
~9.~58
99.971
9S.977
15.015
~. sal
7.3J4
5.674
4.209
3.151
2.360
1. 641
1.212
0.930
0.713
0.510
O. ~93
0.276
0.184
0.150
0.134
0.122
0.116
0.111
0.09~
o.on
0.080
0.064
0.054
0.044
0.042
0.029
0.023
O.150E.OO
0.9B8E-Ol
O. nJE-01
0.567E-01
o .421E-Ol
0.31SE-01
Q.236E-Ol
O.164E-01
O.U1E-01
0.930E-02
0.713E-02
0.S10E-02
0.3~3E-02
O.276E-02
o .184E-02
0.150E-02
o .134E-02
0.122E-Q2
0.116E-02
0.1lIE-02
0.99SE-03
0.913E-03
O.799E-03
O.636E-03
O.S3BE-03
0.440E-03
0.424E-03
G.294E-03
0.22BE-03
• • • • • • • • • • • • • • • • • • • • •
0.614 , 0 .010 ~9_9a7 0 .013 o .DOE-03
o. m , 0 .003 99.990 0 .010 O.978E-04
0 ,656 0 0 .000 " '" 0 _ 0 1 0 0 .S7SE-04
o. on , 0 _ 003 " '" 0 . 007 0 _652E_O~
o. "" , 0 . 003 " ", 0 . 003 0 .326;;-04
o. no , 0 _ 002 " '" 0.002 0 .163!l-04
o. no 0 o. 000 99.998 0.002 0 .163E-04
Duration Comparison Anaylsis
BaSE File, existing. toE
Oe, File, rdout.tsf
Cutoff Units, Discharge '" '"
-----Praction of Time--------------Check of Tolerance,,,-''-,,
Cutoff Base "eo \-Change Probability
0.321 O.25E-02 o .lSE-02 -40.3 O.2SE-02
0_357 o .BE-02 0_ tJE-02 -32 _ 8 0.19E-02
0.393 0 .13E-02 o .1lE-O:l -17.1 0 .13E-02
0 .42S 0 .98E-03 0 _ ~B~_Q~ 00 0 nE-03
0.466 0 .6SE-03 O.82E-03 00 . 0 o . eSE-OJ
0_502 0 .5SE-03 O.S911-0:J , , o. 55,;'03
0.538 0 .41E-03 O.44E-03 , .0 OAIE-OJ
0 .574 0 .26E-03 0 .~9E-03 " , O.26E-03
0 .611 0 .20E-03 0 .13E-03 -H , Q.20E-03
C . 647 o . BE-03 o. 9BE-04 -00 .0 O.13E-03
0 . 683 o . 651':-04 0 .4~E-04 -25.0 0.651':-04
0 .720 0 .~9E-04 o. 16E-04 -G6.7 O.49E-O~
0.756 O.33E-04 O.OOE+OO -100.0 0.33E-04
M~ximum po.itive excursion = G.033 efa 7.4%)
occurring a~ 0.446 cfs on the Base Data:sxiscing.t6f
and at 0.479 cf. On the New Data:rdout.tsf
Maximum negative excursion = 0.068 dB (-lS.H)
oc~urring at 0.376 cfs Dn the Base Data:existins.tsf
and at 0.30S cfs Dn the New Data:rdout.t,f
Base 0"
o. on 0 ,285
o. m O. '"' 0 .393 0 .344
0 .4.9 0 .4.9
0.466 0.488
0.502 0.504
0.538 0.556
0.574 0.584
Q.61l 0.603
0.647 0.6~~
0.683 0.681
0.720 0.693
0.756 0.716
%Change
-11.2
-15.6
-12.4
00
U
co ,..
LO
-1.3
-4.4
-0.3
-3.6
-5.2
LF.."Lo 1..
rZf&U\""';~,.j""
• • • • • • • • • • • • • • • • • • • • •
Existing Peak Flows
Flow Frequency Analysis
Time series File:existing.tsf project Location:sea-Tac
---Annual peak Flow Rates---
Flow Rate Rank Time of peak
(CFS)
0.640 6 2/09/01 2 :00
0.513 8 1/05/02 16:00
0.771 1 2/27/03 7:00
0.544 7 8/26/04 2: 00
0.658 5 10/28/04 16;00
0.678 , 1/18/06 16; 00 0.791 2 10/26/06 0:00
1.30 , 1/09/08 6;00
Computed Peaks
EXISTING. PKS
-----Flow Frequency Analysis-------
-peaks Rank Return prob
(CFS) Period
1.30 , 100.00 0.990
0.791 2 25.00 0.960
0.771 1 10.00 0.900
0.678 , 5.00 0.800
0.658 5 3.00 0.667
0.640 6 2.00 O. SOO
0.544 7 1.30 0.231
O. S13 8 1.10 0.091
1.13 50.00 0.980
page 1
• • • • • • • • • • • • • • • • • • • • •
Developed peak Flows
Flow Frequency Analysis
Time Series File:developed.tsf project Location:Sea-Tac
---Annual peak Flow Rates---
Flow Rate Rank Time of peak
(CFS)
0.776 6 2/09/01 2:00
0.663 8 1/05(02 16:00
0.933 3 12/08/02 18: 00 0.752 , 8/26/04 2: 00
0.897 , 10/28/04 16:00 0.828 , 1/18/06 16:00
1.10 , 10/26/06 0:00
1.54 1 1/09/08 6:00
Computed peaks
DEVELOPE.PKS
-----Flow Frequency Analy5is-------
-peaks Rank Return Prob
(CFS) Period
1. 54 1 100.00 0.990
1.10 , 25.00 0.960
0.933 3 10.00 0.900
0.897 , 5.00 0.800
0.828 , 3.00 0.667 0.776 6 2.00 0.500
0.752 , 1.30 0.231
0.663 8 1.10 0.091
1.39 50.00 0.980
page 1
• • • • • • • • • • • • • • • • • • • • •
8 ;28 ;37 am~;;:J~[~~i~i~,~o~r~ter, Lundeen Inc. School
~~""-
12/14/04 page ,
BASIN SUMMARY
BASIN ID: devlOOyr
SBUH METHODOLOGY
NAME: Developed Conditions 100-Year
TOTAL AREA ....... :
RAINFALL TyPE .... :
PRECIPITATION .... :
TIME INTERVAL .... :
ABSTRACTION COEFF:
PEAK RATE: 0.95
BASIN ID: devlOyr
SBUH METHOOOLOGY
TOTAL AREA ....... :
RAINFALL TyPE .... :
PRECIPITATION .... :
TIME INTERVAL .... :
1.22 Acres BASEFLOWS: 0.00 of"
TYPEIA PERV
3.90 inches AREA .. ; 0.21 Acres
10.00 min eN ..... : 90.00
TC .... : 10.00 min
0.20
VOL: 0.36 Ac-ft TIME; 480 min
NAME: Developed Conditions 10-Year
1.22 Acres BASEFLOWS: 0.00 of"
TYPEIA PERV
2.90 inches AREA .. : 0.21 Acres
10.00 min CN .... ; 90.00
TC .... : 10.00 min
ABSTRACTION
PEAK RATE:
COEFF: 0.20
0.69 cfs VOL: 0.26 Ac-ft TIME: 480 min
BASIN ID: dev2yr
SBUH METHODOLOGY
TOTAL AREA ....... :
RAINFALL TYPE .... :
PRECIPITATION .... :
TIME INTERVAL .... :
ABSTRACTION COEFF:
PEAK RATE: 0.46
BASIN ID; exlOOyr
SBUH METHODOLOGY
TOTAL AREA ....... :
RAINFALL TyPE .... :
PRECIPITATION .... :
TIME INTERVAL .... :
ABSTRACTION COEFF:
NAME: Developed Conditions 2-Year
1.22 Acres BASEFLOWS: 0.00 of"
TYPElA PERV
2.00 inches AREA .. : 0.21 Acres
10.00 min CN .... : 90.00
TC .... : 10.00 min
0.20
VOL: 0.17 Ac-ft TIME: 480 min
NAME: Existing Conditions 100-Year
0.89 Acres BASEFLOWS, 0.00 cf"
TYPEIA PERV
3.90 inches AREA .. : 0.04 Acres
10.00 min CN .... ; 90.00
TC .... ; 10.00 min
0.20
PEAK RATE: 0.71 cfs VOL: 0.27 Ac-ft TIME: 480 min
'M' 1. 01 Acres
98.00
6.30 mn
'M' '1.01 Acres
98.00
6.30 mn
'" 1.01 Acres
98.00
6.30 min
'M' 0.85 Acres
98.00
6.30 min
• • • • • • • • • • • • • • • • • • • • •
12/14/04 8:28:37 am Coughlin, Porter, Lundeen Inc.
Kennydale Elementary School
Lake Washington Drainage Basin
12-14-04
BASIN ID: exlOyr
SBUH METHODOLOGY
TOTAL AREA ....••• :
RAINFALL TYPE .... :
PRECIPITATION .... :
TIME INTERVAL .... :
BASIN SUMMARY
NAME: Existing Conditions IO-Year
0.89 Acres
TYPEIA
2.90 inches
10.00 min
BASBFLOWS:
AREA .. :
eN .... :
Te .... :
0.00 cfs
PERV
0.04 Acres
90.00
10.00 mlD
ABSTRACtION
PEAK RATE:
COEFF: 0.20
0.52 cfs VOL: 0.19 Ac-£t TIME: min
BASIN ID: ex2yr
SBUR METHODOLOGY
TOTAL AREA ....... :
RAINFALL TYPE .... :
PRECIPITATION .••. :
TIME INTERVAL .... :
ABSTRACTION COEFF:
PEAK RATE: 0.35 cfa
NAME: Existing Conditions 2-Year
0.89 Acres
TYPEIA
2.00 inches
10.00 min
0.20
BASEFLOWS:
AREA .. :
CN .... :
TC ..•• :
0.00 cfs
PERV
0.04 Acres
90.00
10.00 min
VOL: 0.13 Ac-ft TIME: 480 min
page 2
m
0.85 Acres
98.00
6.30 min
'MP
0.85 Acres
98.00
6.30 min
• • • •• • • • • • • • • • • • • • • • • •
12/14/04 8:28:37 am Coughlin, Porter, Lundeen Inc.
Kennydale Elementary School
Lake Washington Drainage Basin
12-14-04
TRAPEZOIDAL BASIN
Description: Lake WA
Length: 38.00 ft.
Side Slope 1: 2
Side Slope 2: 2
Infiltration Rate:
I.s
STORAGE STRUCTURE LIST
ID No. LWDBPond
Drainage Easin POND
Width: 18.00
Side Slope 3:
Side Slope 4:
O. 00 mini inch
.,
, I. ~
"
fL
2
2
page
• • • • • • • • • • • • • • • • • • • • •
12/14/04 8:28:39 am Coughlin, Porter, Lundeen Inc.
Kennydale Elementary School
Lake Washington Drainage Basin
12-14-04
'·year
la_ye.r
lOO_y •• '
LEVEL POOL TABLE SUMMARY
'" , .. LWC"""nd 'ondOr '0'" 11 .'"j< of
071 0 •• I.W""Pood Poo""r 101"" "", •• cf
page
• • • • • • • • • • • • • • • • • • • • •
COUGHLINPORTERLUNDEEN
A CONSULTING STRUCTUl\Al AND CIVil ENGINEERlNG CORPORATiON
BASIC BIOFILTRATION SWALE CALCULATIONS
Size Swsl. for b;ofiltration function,
US" Man~ing's Equation to Verify Swale Capacity:
Given:
Where:
Q ~ Flow, cfs
A ~ Gras·sectional area offtow, sq fl.
s = Swale slope, ftlft.
n = Manning's roughness coefficient
y = Flow height, fl.
b = Swale base width, ft (SOn ma,)
Z = Side slope, fiJI.
Hr ~ Hydraulic Radius. ft.
SUMMARY
Base Width-12.0 fI
Side Slope" 3 fI:ft
Swale Length = 100 ft
WQO .. pth= 0,17 ft
100_yr Depth = 0.08 ft
Total Depth" 1.08 ft
Base Width: b-ij,{){J 2'~b~10',lfb;>10',see 1988KC
Side Slope: z 3 Surface Waler Design Manual, 6.3. 1
Q (design flow)
Design Flow Ht
M~Ming'$ "n"
Swale Slope
Swale length
Q 0.179 Q,NO = 60% 2-YR KCRTS DEV. (15-min. ~me step)
y-0.167 For design only y = 2" or4"; depending en slte cond~iens
n= 0.2 For design only
s= slope must be between 1%" 6%
For design only
Using Manning's Equation,
A = (b+ z'y)'y
Hr = AI((b) +(2'y"(1 +z'2)'.5))
Q(d )=(t .49' N(Hr)'O.667'(s)'O.5)ln
A = lZ.t.Ei~ sf
Hr=fZ[0~ft
Q(d)-t "O:3~cIs> r!Q,,1Z90: Modify base(b) until Q(d)~Q(wq)
Check Velocity for BloflHration Fu~ction:
V=Q/A V = Wii~2[ fps« Verify Velocity less than 1.0 Ips
Required Lenqth of Swale:
Hydraulic residence Ume
L=VWQ"540 Verify Length greater than 100 ft.
BiDswale length (site dependant) Verify Allowable Length >~ Required Length
II tha proposed Site does not have sufficient room to provide the required biofiltratlon swale
len th, reduce swale len th and increase bottom width to rovide an e uivalent to area.
FIe uired Blollttration Area,
ater Surface Aiea at DeSign Depth
"'" ~ (b+ 2·z'Y)'L"", A"",=~SI
Project: Kennydale Elementary
Project No. C04·0055·02 Client: McGranahan Che~ked By: TO.
Waterquallt DD 12-6-04.xls
12I11Ill4
I Gf 1
• • • • • • •
COUGHLINPORTERLUNDEEN
A CON'ULTING STRUCll.IRAL AND CIVil ENGINE,RIN<> cOI\l'OAATION
BASIC BIOFIL TRATION SWALE CALCULATIONS
Ad us! Sw.le L. out to Fit Site If L< 100ft. or < Allowable Len th
b, = increase of bottom width
L, = reduoed swale length
""1'+11 =(b,+b...",n
New Bottom Width:
Using Manning's Equation:
A = (b+ z'y)"y
Hr = N((b) +(2"y'(1 +z'2Y 5))
Old )=(1.49·A'(Hr)'O.667"ls)'O.5)1n
A=C20a'st
Hr = fE:L<i.J[ It
m:fs6:lil Modify base(b,1 until Aq, 0> Ar,~,."
R(ia! Ve~fy Q(d»Q{wq)
• Check Veloc]ty for Bloflilration Function,
• • • • • • • • • • • • •
V=QIA
AnalV1'" Swale fo, Conveyance Capacay & V"loc~y
Given:
Base WI<Ith:
Side Slope;
0,,"
Manning's "n"
Swale Slope
Using Manning's Equation:
By Trial S Error y-0.08 II
= (b+ z'y)"y
Hr = NI(b) +(2"y'(1+ZA2Y 5))
Q =(f.49'A -(Hr)'O.667'(sl}'O.5)Jn
Check Velocity
v~ QIA
A-lZilmjsr
Hr= C.9JiE It
0"" -LJl'ClilcfP
Required Depth ofSwale I~cluding Freeboard
Total Depth (TDI = 100yr design depth + 1 loot
TD= ~@fI
Top Width (TW) = b+(2·{z·TD)
TW = F1Bal!:fI
Required Land Ar'"
Area of water surface at freeboard = L'TW
A,."" = r;:ril'i81 sf
Project: Kennydale Elementary
Project No. C04·0055·02 Client, McGranahan
, Verify Velocity less than 1 0 fps
Q c = 100-YR 24 HR DEV.
Check table4.4.1B ,n KCSWDM
Flow height
ffiiitil Verify 0,,, > Old)
3.0 Verify Veloc,ty is less than 3.0 Ips
Designed By: '" Data 12111/04
Checked By: '" Sheet 2 of 2
Watatquar DD 12·e..04.xls
• • • • • • • where,
• • whe,e. • • • • • • • • • • • •
COUGHLINPORTERLUNDEEN
A CONSULTING SnucnJRAL AND CIVil ENGINEERING CORPORATION
Indentlfy Required Wet P<>oI Volume Factor (tl
Based on Waler Quality Menu
f ~ 3
Determine Rainfall (R) for Mean Annual Storm
Determined from F~e: jlA (attached)
R = . 7
'"""' [~! from Mean Annual Storm + 0 01A,) • (RI12) (6.13)
Calculate
" ..
" .. , ..
' .. .. '. .. ... ..
ru" ..
Calculate wetpool volume (Vb"
V. ~
V, ~ , ..
v, =
,,'""'~ of runoff from mean annual storm (cubic feel)
of impervious surface (square teet)
of till.oil covered with gr ••• (square feel)
of ~II soil covered with Iorest (square feet)
of outwash sOil covered w~h grass or forest (square feet)
I from mean annual slo"" (feet)
(cubic feet) from Step 3
\Jo .. ~",,! ", t"',~J .. 1
fAin.
Water ualily DD 12·6·04 xl.
(6.14)
• • • • • • • • • • • • • • • • • • • • •
Kennydale Elementary School
WQ Pipe Design
User Inl)ut Values:
121712004
0'
Sheet1
ILtVESTORAGE::1
'"
p(0 .. ,~f:D t')~'&'b :>'7'>~,A(,..r,: '-'1)...~""~_
nO\ {.f .... 1'1"'1 l.o LF i(,., ~(\~""(''') 0"""
W,"'T"!
.----'-" -1,....---1 ........ 1" tc)l~ ";? .. ,~ • .t~"
, , "rei"'" ~r1
S7'~"'--"'"G_L
Page 1
h ,,' -, vJo. .:.",,~"""'t. ~ '10
,
• • • •
•
• • • • • • • • • • • •
,
I
I
\
\
• • • • • • • • • • • • • • • • • • • • •
"
"
"
where:
"
where:
"
COUGHLINPORTERLUNDEEN
A CONSULTING STRUCTUML AND CIVIL ENGINEERING CORPORATlON
Wet Pond Sizing
Indentify Required Wet Pool Volume Factor If)
Based on Wale, Qual,ty Menu f _ 3
(R) far Mean Annual Storm , ,
Me.n Annual Storm
" "
•
•
O,O'Ao) x (R/12) (6_13)
runoff from mean annual storm (cubic feel) , • i surface (square feel)
A" • til il grass (squaref .. e!)
" • till soil covered with forest (.quare feet) ... • oUlwash SOJI covered forest (.quar.leet)
~" • ,
Calculate wetpOQI yolum. (V.)-
V. : f
V, -, .
\I, _
(6_14) ~~~~:~"'~i~ 0.,,>, rU1D
0"" D S 1"Of'.A<,. E
I (cubic feet)
from Slep 1
(cubic feet) from Step 3
Determine welpaol dimensions. Determine the welpool dimensions satisfying the design criteria
Geometry
I} Wetpond Shall be two oells .operated by a baffle or Berm
2) Wetpond. with a volume less than 4,000 cubic leet may be one cell
Number olWetpond Cells Provided:
3) Sediment Storage shall be provided in the first cell· Minimum depth 1 loot
"
Depth of Sediment Storage:
Depth of First Cell
First Celt Top Length
First Celt Top Width
F"st Celt Bottom Length
Fir.! Celt Bottom Width
First Cetl Top Area
F".t Cetl Side Slop'"
First Celt Bottom Area
Area at Top of Sediment Storage
F"st Cetl Dead Storage Volume
M#-l a' J , 4·8 It
Prof'"'''' Kannydale Elementary Desig<>ed By' ... 121 14104
Project No. C04-Q055·02 Cllen" McGranahan Checked By, Sheet I 01 t
COUGHLINPORTERLUNDEEN
Wet Pond DD 12·13·()4_XI$
• • • • • • • • • • • • • • • • • • • • •
A CONSU, TING STRUCTURAL AND CIVil ENGJNEEruNG (o",OAATION
First Cell Average Flow Path
First Cell Min Storage Volume (Allowed)
First Cell Max Storage Volume (AliowW)
Second Cell Dead Storage Volume (Required)
Second Cell Depth
Second Cell Length
Second Cell Widtll
Second Cell Side Slope
Second Cell Top Are"
Second Cell Bottom Length
Seoond Cell Bottom Width
Second Cell Bottom Area
Second Cell Dead Storage Volume
\(1'"''''''!:l O..,,,t:> >",;,A6£
, ,
,
8 It Max
IS.,,", '!,S"':"" = 50:'<' c-<' "> L(~"O<."
0'-~
Project: Kennydale Elementary O"'ignoo By: ". Date 11I1~I04
Pmje<t No. C04·0055·02 Client, McGranahan Checked By, TO. Sheet , . ,
Wet Pond DD 12·13-M.xls
Geotechnical Engineering
Water Resouroes
SOli'd and Hazardous Waste ~.
Ecological/Biological Scienoes
GeologicAssessments ~
RECEIVED
MAY 20 2004
McGRANAHAN-"'"
Associated
Earth
Sciences,
Inc.
Subsurface Exploration, Geologic Hazards, and
Preliminary Geotechnical Engineering_Report
PROPOSED REPLACEMENT
OF KENNYDALE
ELEMENTARY SCHOOL
Renton, Washingl()n
Prepared for
Renton School District
c/o.
Greene Gasaway Architects, -P.L.L.C.
Project No. KE03330A
October 7. 2003
• • , •
~ • , , • • II
, • • • , • I
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II • .1
• .1 ,
October 7, 2003
Project No. KE03330A
Rentoll School Di:'!rict
,Associated Earth Sciences. Inc.
c/o Greene Gasaway Architects, P.L.L.C.
1'.0 Box 4158
FCdenl Way, Washington 98063
Attention: Mr. Calvin Gallaway
Subject: Suhsurfac,e Exploratioll, Geologic Hazards, and
_ Preliminary GeOiechnJcal Engineering Report
Proposed Replacement Of Kennydale Elementary School
1700 NE 28"' Street
Ren~n, W~shillglOn,
Dear Mr. Gasaway:
We are plcased to present these copies of th~ rcferen~ed report. This report summarizes the
results of our subsurface exploration, geologic hazards, and geotechnical engineering studies . c
and offers recommendations for the preliminary design and deve!opnlenl of the proposed
proj~ct, Our recommendations are preliminary in that project plans are still undcr
deveiopmclll at the time of this report.
We have enjoyed working with you on this srndy and are confident that the recommendations
preqented in this report will aid in the successful comple,tion of your proje~t. . If you should
have any questions or if we can be of additional help to you, please do not "hesitate to call.
Sincerely,
ASSOCIATED EARTH SCIENCES, INC.'
Kirkland, Washington
Kurt D. Merriman, P.E.
Principal Engineer
~~M;Id~,
~EO""Al
P",j,~,\:"""",,,,",,W' W1K
911 ',"hA,,,,,,. ,we. 100· """'""d. WA 9S0lJ' Pho",,4;C, 811·7)01 . F,., 4" 827·5424
• .' • • • • • • • .,
• • •
, • • ,
•
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,
SUBSURFACE EXPLORATION, GEOLOGIC HAZARDS, AND
PRELIMINARY GEOTECHNICAL ENGINEERING REPORT
PROPOSED REPLACEMENT OF
KENNYDALE ELEMENTARY SCHOOL
Renton, Washington
Prepared for:
Renton School District
clo Greene Gasaway Architects, P.L.L.C.
P.O. Box 4158
Federal Way, Washington 98063
Prepared by:
Associated Earth Sciences, Inc.
9115" Avenue, Suite 100
Kirkland, Washington 98033
425-827-7701
Fax: 425-827-5424
October 7, 2003
Proj~ct No. KE03330A
Proposed Replacement of Ken""dale Elementary S, hmJ/
Renton, Wa.>hlngwn
SUD,lurfare Expwrt11ion, Geologic Hazard"
and Preliminary Geotechnical Engineering Jlepon
Project wui Sile C(Jm/i,ion,
I. PROJECT AND STTE CONDITIONS
I,D INTRODUCTION
This repofl presents the results of our subsurface exploration and preliminary geoteebnical
engineering study for the proposed replacement of the KeIlIlydale Elementary School located al
_179~U;J1L2§.~.~1!.!:~h.R§!1!Q!1' .. Wa~!!ington. The location of lhe <:Xisling Kennydale Elementary
School is shown on the Vicinity Map, Figure J, inclnded with this report. Our
rttomm~ndations are preliminary in that project plans are still under development at the lime
of this report. The existing site features am! approximate lo~atiolls of the explorations
accomplished for this study are presented on the Site and Exploration Plan, Figure '1, Once a
~ite development plan is available, th~ conclusion~ and recommendations contained in this
report should be reviewed and modified, or verified, and additional recommendation,
presented as necessary. Additional subsurface explorations may be recommemied once site
developmem plans are fin"iiz~d.
1.1 Purpose and Scope
The purpose of this study was to provide geologic and geotechnical design rc~ommendations to
be utilized in the preliminary design uf lhe project. Our study included a review uf available
geologic literature, drilling exploration borings, and performing geologic srndies to ass~ss the
type, thi~kness, distribution, and physical properties of the subsurface sediments and ~hallow
ground water. Geologic hazard evaluations and geotechnical engineering studies were
completed to establish preliminary recumrnemiations for the type of suitable foundation,
allowable foundauoo soil hearing pressure, anticipated foundation and floor settlement, floor
support recommendations, drainage considerations, and flexible pavement design. This report
~ummarizes our current fieldwork and offen hazard mitigation and preliminary development
recommendations hased on our present understanding of the proje~t. We recommend that our
office be allowed to review project plans as they near completion to verify that our
geotechnical recommendations adequately address the project desiJ,'ll.
1.2 Authorization
Our work was completed in general conformance wilh the scope of work and COS! presenled in
OUT proposal for the project dated June 17, '1003. We were authorized to proceed by Mr.
Calvin Gasaway, Greene Gasaway Architects, P.LLe. TIlis report has been prepar~d for the
exclusive use of the Renton School District, Greene Gasaway Architects, P.L.L.e., and their
agents for spedfi~ application tu this projc~t. Within the limitations of scope, schedule, and
hudget, our services have bt:en p~rfonned in accordance with generally accepted geOkehnical
engineering and engineering geology practices in effect in this area at the time our reporl was
OOober 7, 2003 ASSOCIATED MRTfI SCIENCES, INC
Page I
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l'ropoml Replacement of Kennydak Elemen!~ry Sclwol
Renton, WashinglOn
Sub,urface F.xpioration, Geologic Hazards.
and Preliminary Geotechnical Engineenng Report
Projec/ and Site Condi,ions
prepared. No other warramy, express or implied, is made. Our observations, findings, and
opinions are pres~nted as a mean;; to identify and reduce the inherent nsks to the owner.
2.0 PROJECT AND SlTE DESCRIPTION
This report is based on verbal information provided to us about this new project, as received
from Greene Gasaway Architects, P,L.L.C. At the time this report was written, a new school
building or buildings are planned to occupy the approximate location of the existlllg building
and po~sibly the area within lhc soulheast portion of the site. The existing playfield wi!!
remain and be used hy the new schooL Site developmcnt will also include new parking lots,
fire lanes, bus lanes, and related utilities. We assume that the floor elevations of the new
huilding or buildings would be ~imilar to that of thc existing grades and that no basements are
anticipated. Conventional con~rete and masonry construction methods are assumed, with light
to moderate strucmral loads. For the purposes of this report, coluII!J1 loads on the order of 150
kips am! wan loads of3 to 5 kips per lineal fuol are a<;.,umed .
The project site is that of the existing Kennyda\e Elementary Scbool located at 1700 NE 28"
Street, Renton, Washington. The existing school consists of several buildings clustered at the
southwest part of the site, with a new athletic field to the north and east, and parking lot and
driveway 3reas on the south. The existing two-story main school bUilding and the single-story
gym are uf masonry block construction. The three existing portable classrooms are single-
story woud-frame structures. The site is relatively level and i~ situated a few feet higher in
elevation than adjacent NE 30" Street. A rockery flfU1ks the site along portions of the north
and east property boundaries. Overall vertical relief across (he site was visually estimated at
less than 10 feet.
3.0 SUBSURFACE EXPLORATION
Our field study included drilling 12 exploration borings and performing a geologic hazard
reconnaissance to gain surface and subsurface information about the site. The various types of
sediments, as well as the depths where characteristics of the sediments changed, are indicated
on the expluration logs presented in the Appendix. The depths indicated on the logs where
conditions Changed may represent gradational variations between sediment types in the field.
If changes occurred between sample intervals in onr exploration borings, tbey were
interpreted. Our explorations were approxilnately located in the field by measuring from
known site femUfes shown on the site plan provided. by Greene Gasaw;;y Architects, P.L.L.C.
Approximate exploratiun locations are Shown on the iittached Site and Exploratiun P13.ll, Figure
2.
OClaPer 7, 2003 ASSOCltll"EJ) £ARm SCIENCES. INC
Page 2
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Propv;ed Repiacemem of K"mrydlIie F-Iemelltary School
Remon, Washing/on
subsurfoce Exp/oralion, GeQlogic Hu;zard"
and Prd,;m'lUJry Ga>lechnicaj E/1fJweerin8 Reporl
Projecl and Sire Condilio""
The conclusions amI recommendations pres~Dted in this rep(lfl are based on tho: 12 exploration
borings completed for this :'ludy. The number, location, and depth of the explorations were
complekd within site and budget constraint,_ Becallse of the nature of exploratory work below
ground, extrapolation of subsurface conditioIlS between field exploratioru; is neces3ary, It
should be noted that diff~ring subsurface condilions may sometimes be present due to the
random nature of deposition ~nd the alteration of topography by past grading and/or filling.
The nature and extent of any variations between the ficld explorations may not become fully
eviuem until construction. If variations are observed at lllat time, it may be necessary to re-
evaluate sp~cific recommendations in this report and make appropriate changes.
3.1 Exploration Rorings
TIle exploration borings were completed by advancing a hollow-stem auger with a track-
mounted drill rig. DUring the drilling process, ~amples were ohtai.ned at generally 5-foot depth
intervals. The ~xplorati()n borings were continuously ob~erved and logged by a gcote~huical
engineer from our finn. The exploration logs pre~ented in the Appendix arc based on the field
logs, drilling action, and inspection of the samples secured.
Disturbed but representative samples were obtained by using the Standard Penetration Tcst
procedure in accordance with ASTM:D 1586. 'This test and sampling method consists of
iliiving a standan.! 2-inch oUlside-dimueter, split-barrel sampler a distance of 18 inches into the
soil with a 140.pound hammer free-falling a distance of 30 inches. Tbe llUmber of blows for
each 6-inch interval is recorded and the number of blows required to drive the sampler the
fiml12 inches is known as the Standard Penetration Resistance ("N") or blow count. If a total
of 50 is recorded within one 6-inch interval, the blow count is recorded as the number of blows
for the corresponding number of inches of penetration. The resistance, or N-value, provides a
measure of the relative density of granular soils or the relative consislen~y of cohesive ,oils;
dlese values are plotteo.l on the attached exploration boring logs.
The samples obtained from the split-barrel sampler were classified in the field and
r~presentative portions placed in watertight containers. The samples were then transported to
our laboratory for further visual classification and laboratory testing, as necessary.
4.0 SUBSURFACE CONDITIONS
Subsnrface conditions at the project site were inferred from the field explorations accomplished
for this study and visual reconnaissance of the site. As shown on the field logs, the exploration
horings cncountered a silty sand with gravel in a den~e 10 very dense, moist to wet condition
interpreted as till which is considereil to be suitable snpport strata. Tn each of the explorations,
the till was covered by 2 10 13 feet of weathered till, recessional deposit soil, existing fIll or
OC/ober 7. 2003 A~SOCIATJ:lJ FART!! SCIENCE.~ !NC
Page 3
• • • • • • ! • • , • • • • • • • • • • • • • ,
Proposed Repineemem oj Kemrydaie Elememmy School
Remon, Washington
Sub,urjoce Exploration, Geologic HOl/mi.>,
and Preliminary Geotechnical Engineering f1epmY
Project and Sile Conriil!f)RS
topsoil consisting of a mixture of silts and ~ands in a generally loose to m~diwn dense, moist to
wet condition.
4.1 Soil Conditions
Exisling Fill
Fill was encountered in exploration borings EB-l, EB-2, EB-3, EB-4, EB-8, and EB-lO!O a
depth of 7.5,5,5,3,2, and 3 ft'et, respectively. The fill consists of a mixhlre of silts and
~and, in a generally loose to medium d~nse, moist (0 wet condition, The existing fill was
probably placed at tile time the school was constructed. Since the quality. thickness, and
compaction of the fill materials i~ relatively low or variable, the fill is considered unsuitable
for structural support without rcmcrilal improvcment. Additional exploration, de1in~atilln, and
evaluation of the existing site fills may reveal material consi~t"'n<;y and density suitahle for the
support of pavements and slahs with reasonable remedial improvement. For planning, the fill
should not be considered sunahlc for fonndation support in it.> present condition.
Recessional Outwash
Exploration borings ED-4, ED-9, EE-lO, EB-ll, amI EB-12 encountered hetween 4'/, and 13
feet of sandy soil in a loose to m~dium dense, moist to wet condition interpreted as recessional
outwash. The recessional dt:posiLS accumulated in meltwater streams during the retreat of the
Vashon age glacier from the r~gion. Based on its relatively low density tile recessional deposit
soil is not considered suitable for dir~ct support of SlfUemTes without remedial improvement.
The recessional deposit soil should be suitable for pa\i~ment support after reasonahle remedial
work: is <;onduettxl.
Till
Bdow the fill/rttessiona] outwash soil, our exploration borings encountered silty santi with
gravel interpreted all till. The upper portion of th~ till encountered (to a depth of 7,5 feet,
maximum) was observed to be in l! weathered, medium tI~nse eonditiun. Unweathered till Wall
observed to be in a dense to very dense condition. The weathered till and the upper portion of
the unweathered till was observed to be moist to wet. Till was deposited at the base of an
active continental glacier and was subsequently overridden and compacted by the weight of the
overlying glacial ice. Till soils typically possess high strength and low compressibility
characteristics that are favorable for :;trueturai support. Till soils typically contain a substantial
fme-grained soil fraction, which makes them moismre-sensitive and susceptible to disturbance
when wet sit~ or w~atber conditions exist.
O"whe, 7. 2003 ASSOCIATED £ARm SClENCES, [Ne.
IofTlld!rn . KElJJJ1iJAl ""J<CI"""JjjjJ',K~'~I·· ""I:" Page 4
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Proposed Rep/acement of Kennyda/e Hlememary School
Remon, 1\' .. ,hinglOn
4.2 Hydrology
Subourfare Expioralion, Geologic H=rds.
and Pre/;minary Geotechnical Engineering Repon
Project o"d Sire Conditions
Relatively high moisture contents were observed for soil at or near the contact between the
surface soils and the underlying till in all but exploration borings EB-J, EE-5, and EB-6. This
high moisture was interpreted to represent a perched ground waler condition where downward
infiltration of surface water is impeded hy lower permeability, dense till at depth. It should he
noted that the exploration borings were completed near the middle or a relatively dry summer
following a drier than normal spring and winter, Ground water levels are expected to be
higher and the amount of grouml water is expccted to be greater during and following the
wetter winter ami ~pring seasons. The quantity and duration of flow from an excavation face
that pierces the perching layer will Jepend Oil the soil grain size, topography, and season.
Ground watcr conditions should also be expectcd to vary in response to changes in seasonal
precipitalion, On-and Off-site land nsage, and uther factors.
4.3 Site Intiltration
Infiltration testing has not been conducted as part of our scupe of work. Based on our
observation of strata encountered at the site, the recessiooal outwash soil encollntered in EP-4
located within thO;! western portion of the site and in EP-9, EP-IO, EP-ll, and EP-12 located
within the eastern portion of the site is the only strata that might allow infiltration for site
drainage Ji.lposal. The till encountered at the site is considered impermeable from an
infiltration standpoint. Once you have determined thO;! approximate area for your Jrainage
pond(s)/vault(s), we ~an conduct infiltration testing and pruvide recommendations regarding
the soil infiltration rate, grournl water mounding, and downstream "f<lte" analysis.
ASSO("JATED £Al/TH SCIENCES. INC.
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Proposed Replacement of KermyMJe Elementary School
Renton, WtlShinglOn
Subsurface Exploration, Geolog'c H~lWd'.
and Preliminary Geotechnical Engjneerll!8 Report
aeni()gir HazanJ" and M"igarjOl1'
II. GEOLOGIC HAZARDS A~1) MITIGATIONS
The following discus.lion of potential geologic hazards is based on tile geologic, slope, and
ground and surface water conditions as obser\i~d and disclissed herein. The discussion will be
limited to seismic issues, landslides or mass-wasting, and erosion, including sediment transport
and should be considered prelimiuary.
5.0 SEISMIC HAZARDS AND RECOMMENDED MITIGATION
Earthquakes occur in (he Pugel Sound Lowland with great regularity _ The vast majority of
these events are small and are usually not felt by people. However, large earthquakes do occur
as evidenced by the most recent 6.8-magnitnde event on February 28, 2001 near Olympia
Washington, the 1965, 6.5-magnitnde event, and the 1949, 7.2-magnitude event. The 1949
earthquake appears to have been the largest in this area during recorded history. Evaluation of
retnm rates indicates that au carthquake of the magnitnde between 5.5 and 6.0 is likely within
a given 20-year period.
Gent'rally, th~r~ are four lyp~s of potential geologi~ hazards associated with large seismIC
events: I) surficial ground rupture; 2) seismically induced landslides; 3) liquefaction; and 4)
ground mOlion. The potential for each of these hazards to adversely impact the proposed
project is discussed below.
5.1 Surficial Ground Rupture
The nearest known fault trace to the project site is the Seattle Fault mapped approximately 5 to
6 miles to the north of the site. Recent studies by the U.S. Geological Survcy (USGS) (c.g.,
Johnson et aI., 1994, Origin and Evolution of the Seattle Fault and Seattle Basin, Wmhingron,
Geology, v. 22, pp. 71-74; and Johnson et aI., 1999, Adil'e Tectonics o/the Seattle Fault and
Cemrai Puget Solmd Washington ~ Implications for Earthquake Hazards, Geological Society
of ,\meriea Bulletin, July 1999, v. Ill, n. 7, pp. 1042-1053) have provided evidence of
surficial gruund rupture along a northern splay of the Seattle Fault. The recognition of this
fault splay is relatively new and data pertaining to it are limited with the studies still ongoing.
According to the USGS studies, the latest movement of this fault was about 1,100 year.~ ago
when about 20 f~et of surficial di~placement took place. This displacement can presently be
seen in the form of raioed, wave-cut beach terraces along Alb Point in West Seattle and
Restoration Point at the south end of Bainbridge Island. The recurrence interval of movement
along these fault syst~ms is still unknown, although it is hypothesized to be in excess of several
thousand years. Due to the suspected long recurrence interval, the potential for surficial
ground rupture is con~idefed to be low during the expected life of the proposed structure.
October 7. 2003 ,ASSOCIATED EARTH S("JENCES, JNC
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Propo,\'ed Replacement oj KemrydlIle Elementary School
Remon, Washmgton
5.2 Seismically Induced Landslides
Subsurface Exp/oration, Geologic H(,,~rd',
and Preliminary Geotechnical Engmeermg Report
Geologic liawrds and Mitigmions
The potential risk of damage to new struch1fes by ~ seismically imluced landslide is considered
to be low due to lack of steep slopes 011 the project site.
5.3 Liquefaction
Liquefaction is a proCCSg through which unconsolidated soil loses mcngth as a re.lIllt of
vibratory shaking, such as that which occurs during a seismic event. During normal
conditions, dle weight of the soil is supported by both grain-to-grain contacts and hy the
prcssllre wilhin the pore spaces of the soil below the water table. Extreme vibratory shaking
can disrupt the grain-to-grain contact, increase the pore pressure, and result in a decrease in
soil shear strength. The soil is said to be liquefied when nearly all of the weight of the soil is
snpported by pore pressure alone. Liquefaction can result in defoonation of tbe sediment and
settlement of overlying slrue[Ures. Areas most su~c~ptible to liquefaction inclulle those area~
underlain by non-cohesive silt and sand with luw relative densities, a<:companied by a shallow
water table.
The encountered stratigraphy has a low potential for liquefaction due to high density of most of
the site suils, and typically high silt content. We did not complete a rigorous liquefaction
analysis and none is recommended.
5.4 Ground Motion
The project site is located within a Zone 3 rating for seismic activity on a scale uf 1 (lowest) to
4 (highest) ba.led on the Seismic Zone Map of the United States, Figure No. 16-2 in the 1997
edition of the Uniform Building Code (UBC). This zonation is based on past earthquake
activity in the Pagct Sound region. As such, design recommendations in the report
accommodate the possible effect of seismic activity in areas with a Zone 3 rating,
correspondiug to a peak ground acceleration of 0.3g (a Richter magnitude 7.5 earthquake
occurring directly beneath the site), in accordance with UBC guidelines. This seismic 7AJne
factor for this site shuuld be u;ed with suil type Sc.
Alternatively, guidelines presented in the 2000 International Building Code (mC) may be used.
Informatiun presented in Figure 1615(1) indicate a mapped spectral acceleration for short
periods of S, = 1.5. Information presented in Figure 1615(2) indicates a mapped speclml
acceleration for I second period of SI = 0.5. Based un the results of subsurface exploration
lUld on an estimation of soil properties at depth utilizing available geologic data, Site Class "C"
in conformance with Table 1615.1.1 may be used. Site coefficients F. = 1.0 and F, = 1.3 in
confonnance with mc Tables 1615.1.2 (1) and 1615(2), respectively, may be used.
October 7, 1003 ASSOCIATED EARm SCIENCES. INC.
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Pmpoud Rep/a('emonl of K mff}'daie Elemenlary S("hooi
Reman, lVmhington
6.0 EROSION HAZARDS AND MITIGATION
SubsUljace lixpiormion, Geologic RIWlrr1s,
and Preliminary GeO!edmjcal EngiJJeering Report
Geolugic llrnaril!; ana Miligations
To mitigate and r~duce the erosion hazard potential and off-site soil transport during and post-
conSlIuction, we recOlmnend the following:
1. No water should be dir~ctcd to flow over cuts/slopes during construction activities.
2. All storm water from impermeable >urfaces should be tightlined into an approved storm
water drainage system or temporary storage facilities and should never he allowed to
flow over site cuts/slopes.
3. To redw:e the amount of soil transport during site grading, silt fences should be placed
along the lower elevations of the ~onslrucliol1 area.
4. Construction should proceed during the drkr periods of the year, if possible, and
di~turbed areas should be revegetated as soon as possihle.
5. Ground water ~eepage ~honld be anticipated during site grading. Seepage should h~
controlled and lightlined into a suitable collection system and disposed of into an
approved storm water drainage system or temporary storage facility. Specific seepage
recommendations related to erosion andlor slope stability hazards are best developed in
the field at the time of construction, when the acrual seepage conditions can be
observed.
6. Soils which arc to he rensed around the site shonld be stored in such a manner as to
reduce erosion. Protective measures may include, bnt are not necessarily limited to,
covering with plastic sheeting or the nse of straw hales/silt fences. Soils excavated for
fonndation walls should not be placed on sloped areas or within 15 feet of the crest of a
temporary cut.
October 7, 2003 ASSOCIATED EARTH SCIENCES. [NC.
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Proposed Replac emen! vJ Kennyda)e Elementary School
Remon, Washington
Sub,urfiu'e F,xp!ormion, Geologic Hu<.""l,',
and Preliminary Geotechnical Engilleering Repan
Preliminary fJesisn Recommendmiol/5
III. PRELThfINARY DESIG~ RECO~ll'vlENDATIONS
7.0 INTRODUCTION
OUT exploration imlicates that, from a geotechnical standpoint, the proposed proje~t is
compalibk with this site provided the recommendations contained herein are properly
follow~d. The depth to bearing soils is expected to vary across the site from near [he ground
surface to as deep as 7.5 feel. The f()undalion hearing strata c~n be assumed to be eilher the
undisturbe<.l till or th~ recessional outwash sand following recompaction. The till soils were
encountered near surface within ER-5, EB-6, EB-7, and within 2 fcct of ground surface in EB-
8. El,ewhere on the site, the depth tl) till soil rangc.1 between 5 and 13 feel below ~Aisling
ground. Fill sl)ils were encl)untered to deplhs of 2 10 7.5 feel beluw the existing surface. The
fill is not suitable for foundation support. The recessional outwash is a suitable bearing
Slralllm only after recompaclion as reconunended in this rcport. With the exception of lh~ soil
in exploration pits EP-l, EP-5, amI EP-6, relalivdy ~hallow perched ground water was
encountered near the contact between the till and overlying soil. Reuse of the higher moisture
soil encountered near the soil/till contact as structural fill during all but the driest times of tbe
y~ar may be difficult.
Conventional shallow foundations and slab-on-grade Ooors may be IJsed with normal Sil~
preparation procedures where ,ui!.able folJndation bearing soils are encountered near foundation
devation. Careful site development planning will be required lO identify fLll soils that require
removal and outwash soils that only require recompaction. The llru;uitable flll soil must be
rt'llloved from beneath planned foundations, floor slabs, and any other st'ttkment-sensitive
structures. An alternative to fill removal would be to use short aggregate piers (GeopiersTM) or
rock trenches to support building foundations through areas underlain by existing fill soils.
Dut'.to.the limited and variable thickness of existing filI~, these alternalives art' probably not
warr~ted. We ca"n pr~vid~ ~p~~ifi~-~coinmendations"f6r 'these 'alteniatives if r~ques"ied: Th~
following report sections pre~cnt our specific geotechnical site deveiopmt'nt recommendations.
8.0 SITE PREPARATION
All foundations, paving, and other structures (hat exist under th~ plann()(] building and
pavement areas shoulu be removed. Any bllrieu milities should be removed or relocated if
they are under the proposed buildings. The rt'sulting depressions should be backfilled with
slructural fill as discussed under the Structural Fill scction. In development areas that are
currently occupied by land<;caping, all vegetation ~nd topsoil should be removed during site
preparation.
October 7. 2003 ASSOCIATED EARTH SCIENCES. INC.
Page 9
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Proposed Replacement of Kemrydllie Elememary Sclwol
Rem"n. 1I'~"hingUm
Suh'"rjoce E:tpwrt11ion, Geologic Hazard.!,
and I'relimmmy Geo1echnicai Engineering Report
Prdimina2' DeSlgll RecammendiUions
Excavations to a~hieve design building subgrades should then be completed. The exposed
subgrade soils should be evaluated, Where exposed, the existing fill soil should b~ remuved to
expose either recessional outwaoh soils or firm, unyielding lilL The removal of exi,tlllg
unsuitahle soil should extend laterally beyond the building footprint a distance equal 10 rhe
depth of unslJiuble soil below planned foundations or floor slab. For example, if un~uitable
soil extends 3 fe~t bdow planned fuunuations at ~ given point, the uverexcavation lateral limit
should extend 3 feet beyond the building.JIf recessional outwash soils are encountered after
exioting fill removal, the 5urface of the outw~sh soils should be compacted to 95 percent
relative compaction a, recommended in tlw Strucrural Fill scction of thi, report. If till soils
are encountered after existing fill is removed, no funher excavation or compaction is required.
Once suitable nalive soils have been reached, structural fill can be pla~ed to restore the design
building subgrade elevation. for pavement areas, complete existing fill removal is not
required. Once a subgrade elevation has been e.,tablisbed, the surface of the .~ubgrade should
be proof-rolled with a loaded dump truck. Any soft or loose areas should be removed to
expDse a suitahle, firm condition and the o~erexcavati(}n ba~kfilled with properly cllmp~cled
structural fill. This procedure should bc completcd subsequent to site stripping and prior to
placing new fills to raise site grades. Structural 1111 material should be selected lind placed in
accordance with r~co=ndations in the Structural Fill section of this report.
If construction will occur during winter weather conditions, we recommend that the upper 6 to
12 inches of the building pad consist of railroad hallast, crushed concrete, or >and and gravel
that contains less than 5 perccnt passing the U.S. No. 200 sieve, based on thm fraction passing
the U.S. No.4 sieve. TIle purpose of this select fill is to provide a working surface that is
compatible with moderately wet site and weather conditions. Depending on field conditions,
geotextile fabric, such as Mirafi 500X or equivalent, might be needed beneath aJeas where
heavy traffic is expected.
In our opinion, stable construction slopes should be the re:;ponsibility of the contractor and
should be determined during construction. For estimating purposes, however, we anticipate
that temporary, unsupported cut ,lopcs in thc cxisting filllrccessional outwash soil can be made
at a slope of 1.5H:1V (HorizontaJ:Vertical). Temporary, unsllpported cuts in till can be made
at a slope of lH:1V or flatter. These slope angles assume that ground water scepage is not
strong enough to rcduce slope stability and that surface water is not allowed to flow across the
temporary slope faces. If ground or surface water is present when the temporary excavation
slopes are exposed, flatter slope angles will be required. As is typical with earthwork
operations, some sloughing and raveling may occur and cut slopes may have to be adjusted in
the field, In addition, WISIIA/OSIIA regulations should be followed at all times. We should
be allowed to review excavation cut slopes greater than 8 feet in height. Permancnt cut slopes
should be no steeper than 2H:IV.
Some of the on-site soils contain a high percentage of fme-grained material, which makes them
moisture-scnsitive and subject to disturbance when wet. The contractor must use care during
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Proposed Replacemem of Ken/rydale Elemmiliry Srh(m/
Remon. Washington
Subnllface Expwrat;on, Geologic Hawrds,
aml Preliminary Geotechnical Engineering Repon
Pret/mmar}' De,ign Ruommendmions
site preparation and excavation operations so lhal the underlying soils are not softened. If
disturbance occur.~, the sortened soils should bt: r~moved and the area brought to grade with
~tructural fill.
To the extenllhat it is pussible, we recommend that the existing paving along the west or north
portion of the site be used for construction staging Ir the existing pavement cannot be used
for construction staging, we recommend that crushed rock fill be considered in con~truction
8tagi~g areas to form a working surface. If crushed rock is to be us~d for the access and
staging artoas, it should be underlain hy engineering stabilization fabric 5uch as Mirafi 500X or
equivalent to reduce the potential of fine-grained materials pumping up through the rock and
turning thc area to ml.ld. The fabric will also aid in supporting construction equipment, thus
reducing the amount of crushed rock required. We recommend lhat at least 10 inches of rock
be pla~ed over the fabric; however, due to the variable nature of the near-surfdc~ soils am!
differ~nces in whed loads, this thickness may have to be adju~ted by the contractor in the
fidd.
9.0 STRUCTURAL FILL
Structural fi!! will he necessary to establish de~ired grades and to provide a uniform whgrade
below new floor slabs and pavement areas. All references to struetural fill in Ihis report refer
to subgrade preparation, fil! Iype, and placement and compaction of materials a~ discnssed in
this section. If a percentage of compaction is specified under anothcr section of this repOTl, the
value given in that section should be used.
Building areas should be evaluated after site stripping. Existing fill soils should be
ovcrcxcavated to expose eilher outwash soils or till. Below pavements, the stripped subgrade
should be proof-rolled and loose or soft areas overexcavated 10 expose fum subgrade soils.
After stripping, excavation, and any requir~d overexcavalion has been performed to the
satisfaction of the gcotechnical engineer/engineering geologist, the npper 12 inches of exposed
ground should be recompacted to 95 percent of the modificd Proctor maximum density u8ing
ASTM:D 1557 as the standard or to a fum unyielding condition. If the subgrade contains too
much moisture, adequate recompaction may be difficult or impossible to obtain and should
probably not be attempted. In lien of recompaction, Ih~ ar~a to receive fill should be blanketed
with washed rock or quarry spalls to act as a capillary break between the new fill and the wct
8ubgrade. Where the exposed gronnd remains soft and further overexcavation is impractical,
placem~nt of an engineering stabilization fabric may be necessary to prevent contamination of
the free-draining layer by silt migration from below.
After recompaction of the exposed ground is tested and approved, or a free-draining rock
course is laid, structural fill may be placed to attain desired grades. Structural fill is defined as
October 7. 2003 ASSOCfA.mn EARm SC1£.'VC£S. INC.
.UT~dI" • Kmll1OA'. PmJeill\200J.1Jn\K£lWp. lV'K Pag~ 11
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FropOJed Repiacemem oj Kennydale Elementary School
Remon, Wl15hing/on
Subsurface Exploration, Geulog,e Ha,ard"
and Prelimmary Geolechnlrallongil1eering Repon
Preliminary Design Recommendlliions
non-organic soil, acceptable to the geotechnical engineer, placed in maximum 8-inch loos~ lifts
with each lift being compacted to 95 percent of lht' mudified Proctor maximum den.lity using
ASTM:D 1557 as the standard. In the case of roadway and utility l[",nch filling, the backfill
should be placed and compacted in accordance with current local or county codes and
staIldards. The top of the compact~d fill should extend horizontally outward a minimum
di~lance of 3 fed beyond the IDcation of the perimeter footings or roadway edge before sloping
down at an angle of 2H: IV.
The contractor should note that any proposed fill soils must be evaluated by Associated Earth
Sciences, Inc. (AESI) prior to their use in fills. This would require that we have a sample of
the material 72 hours in advance of filling activities to perform a Proctor lest and determine its
field compaction standard. Soils in which the amount of fine·grained material (smaller than the
No. 200 sieve) is grealer than approxirnatdy 5 percent (measured on the minus NO.4 sieve
size) should be considered moisture-sensitive. The on-site till and outwash soils generally
contained substantial amOUJlts of silt and are considered highly moi~turc·scnsitivc. These
materials are acceptable for use as fill provided they are placed and compacted at a moisture
content that allows for the minimum specified compaction presented in this report. Rcnse of
till soils during wet site or weather wnditions is expected 10 be difficult or impossible due to
high silt content and moisture scnsitivity. TIle outwash soils should perform better under a
wider range of moisture contacts than the siltier till soils. Use of moisture-semitive soil in
structural fills should he limited to favorable dry weather conditions. A portion of the existing
fi11!recessional outwash soil on-site was obSErved to have elevated moisture content and may
not be considered suitable for use in structural fill applications.
Free-draining fIll can be used in wetter site and weather conditions IJllder a wider range of
moisture conditions than the on-site soils. Free-llraining fill consists of non-organic soil with
the amount of fine-grained material limited to 5 percent by weight when measured on the
minus NO.4 sievc fraction and containing at least 25 percent greater than the No.4 sieve. In
dry weather, inorganic on-site soils can be used as structural fill if they are cleaned of woody
debris and oversized rocks .
We recommend that during construction, traffic across exposed site soils shuuld be kept to a
minimum during and after storm events, until the surf.tce drains. When theBe materials are
wet, it may result in disturbance of the otherwise firm stratum, requiring removal and
replacement of llisturbed soils. If wet weather construction is expected, construction acccss
and staging areas shonld be protected as described in the Site Preparation section of this
report.
A representative from our finn should inspect tbe strippedfoverexcavated subgrade and be
present during placemem of structural fiil to observe the wurk and perform a representative
numher of in-place density tests. In this way, the allequacy uf the earthwork may be evaluatell
as filling progresses and any problem areas may be corrected at that time. It is important to
October 7. 2003 ti-SSOClttl"ED HARTH S('..JliNCES, INC.
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Propmed Rcp/m emenl OJ Kel!f1ydJlie Elementary School
Renton, Washing/on
Sub,urface Up/oration, rreolag;c Hawrds,
and Preliminary Geolechn;ca[ EI1gineering Reporl
Preliminary Design RecommelUiariorJ.!l
understand that taking random compaction tests on a part-time basis will not assure uniformity
or acceptahle performance of a fill. As such, we are available 10 aid the owner in developing a
suitable monitoring aud testing program.
10.0 FOUNDATIONS
Spread footings may be us~d for building support when founded OIl suitable till, recompactcd
outwa.';h soils, or structural fill placed as pr~yiuusly discussed. To limit differential settlements
between roolings that bear on structural fill or outwash soils and lhose that bear on deuse till,
we recommend thaI an allowahJc foundation soil bearing pressure of 2,500 pounds per square
fOOl (psO be utilil.ed for design purposes, including both dead and live luads. If higher bearing
pr~ssures are needed, a value of 5,000 psf may be used in areas whert' alJ footings are placed
entirely on dense tilL An innease of one-lhird may be nsed for ,horHerm wind or seismic
loading. Perimeter footings should be buri~d at least 18 inches into the surronmling I>oil for
frolt protection; interior footings require only 12 inches burial. However, all footings must
penetrate to the prescribed bearing stratum and no footing should be founded in or above
loo~e, organic, or existing fill soils.
It should be noted dlat the area bounded by lines extending downward at IH:IV from any
footing must not intersect anotht'r fouting ur intersect a filled area which has not been
compacted to at least 95 percent of ASTM:D-1557. In addition, a 1.5H:IV line extending
down from any footing must not daylight because sloughing or raveling may eventually
undermine the footing. Thus, footings should not be placed near the edge of steps or cuts in
the bearing soils.
Anticipated settlement of footings founded as described above should be on the order of ~
inch or less. However, disturbed soil not removed from footing excavatiuns prior to footing
placement could result in increased settlements. All footing areas ,hould be inspected by ,\ESI
prior to placing concrete to verify that the design bearing capacity of the soils has been attained
and that construction conforms to the recommendations contained in this report. The
governing municipality may require such inspection~. Perimeter footing drains should be
provided as discus_~cd under the section on Drainage Considerations.
11.0 LATERAL WALL PRESSURES
Walls that are free to yield laterally at least 0.1 percent of their height should be designed
using ~active" equivalent fluid pres,ures, Fully restrained, rigid walls that cannot yield shuuld
be designed using "at-rest" equivalent fluid pressures. The following table provides
appropriate active, at-rest, and passive equivalent fluid pressures (and associated friction
coefficients) for the anticipated project wall design conditions.
OClOber 7. 2003 ASSOCIATED £AIIIH SCIENCES, iNC.
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Proposed Repiliumenl of KennyJale Elementary School
Remn", Wa,hillgton
Back,lope Conditions . ,
Equivalent
Fluid
Pressure
SUbsurface ful'loralion, Geologic HaZ11T(l$,
and Preliminary Geotechnical Engineenng Repon
Prdimitwry Design Recommendar'{)n5
At·R.,{
Eqnivalent
Fluid
(
I',.."ire
Equivalent
Fluid hidiotl
All backfill behind walls or around foundation units should he placed as per our
recOlmnendations for strudural fill and as described in this section of the rcport. 'Where cast-
in-place retaining walls face structural fIll, the backfill should consist of on-site or imported
granular fill, compacted to 90 percent of ASTM:D 1557. A higher degree of compaction is
not recommended, as this will increase tile pressure acting on the wall. A luwer compaction
may result in settlement of slab-on-grades or other improvements placed above the walls.
111llS, the compaction level is critical and must be tested by our firm during placement.
Sureharge~ from adjacent footings, heavy construction equipment, or sloping ground (where
not indicated) must be added to the above values. Perimeter footing drains should be provided
for all retaining walls as discussed under the section on DrailUlge Considerations.
It is imperative that proper draiilllge be provided so that hydrostatk pressures do not develop
against the wall. This would involve installatiun of a minimum I-foot-wide washed gravel
blanket drain, which is continuous with the p~rimeter footing drain and extends to within 1
foot of the gronnd surface.
Lateral loads can be resisted by friction hetween the foundation and the till, supporting
structural fill, or by passive earth pressure a~ling nn the buried portions of the foundations.
The foundations must be backfilled with structural fill, compacted to at least 95 percent of the
maximum dry density, to a~hieve the minimum passive resistance shown in the table fur
footlngs cast against structural fill. The presented values are allowable and include a safety
factor of at least 1.5.
12.0 FLOOR SUPPORT
Slab-on grade f1uors should be constructed above either recompacted outwash soils, new
structural fill, or above till as described in the Sire Preparation section of this repurt. All fill
beneath the slab must be compacted to at least 95 percent of ASTM:D 1557. The floor should
be cast atop a minimum of 4 inches of washed granulithic material or pea gravel to act as a
OelOber 7. 2003 ASSOCIATED EARnl SCIENCES, INC.
Page 14
• • .~ • • • , , • , • • , • • • , • , • I , • i • I • • • • • • I
Proposed Rep/llcemt!nI nf Kennydal. F.lememary School
Remon, Washingwn
Subsurface Expioralion. Geologic Hal1ml$,
fmd PreiimmIlrY Ge(}Uchnic~1 Engineering H.epon
PrelimiMry Design Recommendmions
capillary break. Areas of slab subgrade lhat are disturbed (loosened) during ~onslruc(ion
should be compacted to a non~yielding condition prior to placement of capillary break mal~riaL
It ,hould also be prote~ted from dampness by an imperviclIls moisture barrier at least 10 mils
thick. The impervious barrier should be placed hetween the capillary hreak mmerial and the
concrete slab. The American Concrete InstilL/Ie recommends placing a 2-inch layer of clean
sand above the vapor barrier to protect it from damage ami aid in curing of the concrete. If
thi:; sand layer is used, it must be protected from precipitation or allowed to thoroughly dry DOt
prior to pouring the concrete slab.
13 ,0 DRAINAGE CONSIDERA nONS
It is possible thal ground water or seepage may be encountered at depths required for normal
eonslruction during the wett~r months of th~ year. Therefore, the contractor should he
prepared to provide temporary storm water collection, storage, and disposal mechanisms as
necessary prior to site work and during constructinn.
All retaining and footing walls shonld be provided with a drain at the footing elevation. Drains
shoold consist of rigid, perforated, PVC pipe surrounded by washed pea gravel. The level of
the perforations in the pipe should be set at the bottom of the footing at all locations and the
drain collectors .Ihould be constructed with sufficient gradient to allow gravity di~charge away
from the building. In addition, all retaining walls and modular block walls should he lined
with a minimum 12-inch-thick washed gravel blanket providcd to within I foot of the top of
wall, and which ties into the footing drain. Modular block walls if used should also be
provided with chimney drains. Roof ami surface runoff should not discharge into the footing
drain system but should be handled by a separate, rigid, tightline drain. In planning, exterior
grades adjacent to walls should be sloped downward away from the structure to achieve surfa~e
drainage,
14.0 PAVEMENT RECOMMENDATIONS
At this time, site layout has not been completed sufficiently to determine what types of soil are
likely to be encountered at planned pavement subgrades. Pavement subgrade can consist of
either recompacted existing fill, recompacled outwash soils or till. Pavement design will
depend to some extent on the soil that exists beneath the area to be paved. If paving is planned
above areas of existing fill/recessional outwash soil we recommend that the subgrade be proof-
rolled to expose soft areas and then compacted to 95 percent compaction after the removal and
repair of soft arcas or organic soils.
The arca~ to be paved ~hould he proof-rolled witl] a loaded dump truck or other suitable
equipment under the observation of me geotechnical engineer. Any soft, loose, or yielding
Doober 7, 2003 ASSOCIATED EARTf1 SCIENCES, INC.
Page J5
• • • • • • • • • •
, : • • i • , , • • • • •
Proposed Replacement of Kcnny,i(Jle Elementary School
Remon. Wmhington
Subsurface E1:piortUion, Geologic Hamrw:,
and Preliminary Geo1echmcal engineering Repon
Preliminary Design Recomm.lUkltions
areas or signifi~antly organic soils identified by proof-rolling should be repaired prior to
further work. After proof-rolling, pa\ii~g mbgrades should be compacted to 95 percent of the
modified Proctor maximulll density as determined by ASTM:D 1557 and to a firm,
unyielding condItion. recommend a car
pavement section consisting
crushed rock hage. In areas ,
-beavYvclti~ilrbe driven ur parked, we recommend a paving ",,"em
of asphalt paving above ~ inches Df crushed rock base.
Pavement thicknc<;s design is a compromise bdwecn higher initial cost with longer design lif~
and lower maintenance, and lower initial cost with higher maintenance requiIements and
shorter design life. The recommended pavement sections are intended to provide a 20-year
service life with normal maintenance. NOrmal maintenance typically incllldes periodic sealing,
and at least one renovation that includes repair and overlay of damaged aH:as,
15.0 PROJECT DESIGN AND RECOMMENDATIONS FOR FURTHER STUDY
At the time of this report, site grading, structural plans, and construction methods have not
been finalized and the recommendations presented herein are preliminary. We are available to
provide additional geotechnical consultation and exploration as the project design develops and
possibly changes from that upon whicb this feport is based. We recommend that AESI
perform a geotechnical review of th~ plans prior to fmal design compktion. In this way, our
earthwork and foundation recommendations may be properly interpreted and implement~d in
the design. We are also available to prol'ide geotechnical engineering am!. monitoring services
during com;truction. The integrity of the foundation depends on proper site preparation and
construction procedures, In addition, engineering decisions may have to be made in the field
in th~ event that variations in suhsurface conditions hccome apparent. Construction monitoring
serviexs are not part of this current scope of work. If these services are desired, please let us
know and we will prepare a COS! proposal.
October 7, 2003 ASSOC1A'lED EARTH SClt."NCES, INC.
Page 16
• • • • • , , • , • • • • • • I
III!
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• • • I
Proposed Replacemem of Kennydo/e Elem,<ntary Sclwol
Remon, Washmgwn
Subsurface Erplorarion, Geologic Hnwrd"
ami. Preliminary Geo/l'Chniml Engineering Report
Preliminary Design Ri!wmmeruiatil!n<
We hav~ enjoyed working with you 'on this study and are confidenl that these recOimnemia(inns
will aid in the successful completion of your proJect. If you should have any questions, or
require further assistance, please do not hesitate to call.
Sincerdy,
ASSOCIATED EARTH SCIENCES, INC.
Kirkland, \Vashington
Maire Thornton, P.E.
Senior Project Engine~r Principal Engineer
Attachments: Figure 1:
Figure 2:
Appendix:
October 7, 2003
Vicinity Map
Site and Exploration Plan
Exploration Logs
ASSOCIATED EARTH SCIENCES, INC.
Page 17
II
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"
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, • • , • , •
D • • • " • • • • • • • • ,
0 < 0 0 , 0 0 0 0 " 0 , " " 0 g
" 0 " "
Iil
m
Il\l
m
• EB-l0
• EB-9
• EB-12
• E8-7
• • EB_11 EB-3
EXisting
Main Building
• E8·6
LEGEND
EB-9. Approximate location of explDratiofl boring
"".,'" •• E,,," '''"<0,, 'n<. SITE AND EXPLORATION PLAN
KENNYDALE ELEMENTARY SCHOOL
RENTON. WASHINGTON
NO SCALE
FIGURE 2
DATE 06103
PROJ. NO KEOJ:i30A
• • • I • • ~
• • • •
• • I • !
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sand wilh gravel,
to 00 fi"".
" , I wllh sand
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;
"
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gravelly clay, fat
sand or g;avel
;
"
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DBnsity
c=~ Veryloo ..
loos. Grained So,I, M,dlum Denss
Den,.
VOl)' Dons.
Fine_
Gmined Soil. M<ldlumStift
'"
4'010
1010:30
301050
;>50
SPT<2iblowslfoo(
a '02
2104
',oS a 10 15
Test Symbols
G _ GrainS~.
M· Mo",,,. c;o",eot
A ~ Atl"berg lmls
C ~ Cl1erT''''''' DO _ Dry Density
K _ P.rm •• b,hty
Desoriptive Term
Bould""
Gravel
Caarse Gravol
Fine Gra",1
S.nd
Co",'" S.nd
Med,um Sand
Fine Sand
Sill and Clay
3"012'
0"0 NO.4 (4.75 mm)
3"'03/0"
3J'"'oNo 4(47Srrm)
No, 4 (4 75 mm) to No. 200 (1l 075 mm)
No • 14 75 mm) to No. 10 (2.00 rTfl'1
No, 10 12 00 mm) 10 No. 40 (0.425 mm)
No ~O 10.425mm) 10 No. 200 (Oms mm)
Small., than No 200 (0075 mm)
SID 10
151025
Molstura Content
Cfy -N;l,enca QI rroislure,
1,,,,,.
,~
Utlle
IM,h • Non.pnmorf coarso
cC(l,tltu"nls: .:: 15%
-Fines oooten! be",,,,,,,
5%and,S%
dus1)t, dry to In. IOUoil
SI>ghtl'/ MQ"I -Pereoptlblo
moisture
Moist· o'"'P bu' no visil>l>
water
Very Moist· Water visibJ. i>J1
nol free drarnrn;l
Wet -Vlsrbl. fie. wa[er. USIJ.1ly
Br.Jk sample
Symbols
Bb.vs16" Of
porto" 016'
" "
3 0' 00 SPiI[.Sp= Somp'er
!
()' oD Th'n_Wall TUo. Sa.mpf8f
1 I Shelby Il.llo)
nol r..:.".,ed
"
fiom below wat.r labia
I ~plh of groundwater
:J: ATD ~ At lim. 01 drilling
2. 5t.tlc w".r to",1 (date)
I~ Comb"ad uses SYIT.bcls used lor
~n.s betw<en I'll and 15%
CIo","",1Io", 0' '''~ ,n 11-,,, ,"po" .re b .... d '" ,,,oaJ ,.~ """'" ~Oo .. ."..,. 0",0"";"". "" .. i"l,d. de,...,.I,,,,."'o",,,,, mo,","", oo .. ltl,,,. ,_ '~ •• "d
pl.,ieity ."Im" •• "d 'hooid no'" 00""''''" to ;mp~ ""~ '" Ia""",o,"" '"""1 ""I". ",""""" nO' .... \110001 ..... '"'" .. dla, lal"m'lO<y ~""'''''OO"
~ method. ci ASTM D·1411 ,0Ij D-'''' we,. ",ed "an ~,"""Ga""" 11""" lor"'. U",ed S0" cra • .;,;"""" 5y""",",
'~~='=':.-OC-=i~=~=d_E::~=h::S_'=li~='::..!S~'~=-"..:'·,---__ E_x_p_lo_r_a_t_i_o_n __ L_O_9 __ K_e_y _____ ~_'G~_~
• I iirill 'Ii' [<j'~ I~I ' , , ~":;',
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HarM\.' Welg"",Drop 1 ' Hole I
"
• • g ! • 81owsiFoot
0 , • • • 0 • ~" '"
g::~: I,;;;,:" , 0" '"' Yfinel /'
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!
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'"' Moist. blue-gray,
oxidation. • Sic TY SAND, j",,,,, roonded gra,.1 (SM), tra"" orange R " • " I ,~ Mors!, blue-gray, SILTY SAND, traro rounded 9",,,,,1 ISM), ~.'" ora"go
oxid.tion. • • Be",," ,I """"."," """"' " \6 5 reat
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• ,
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DESCRIPTION
" Damp, brown, Sic TY SAND, f
oxidation.
grovel (SM), mottled, orange
Till
Wet. gray, SILTY fine 10 ""'""'" SAND, fsw fin. gravel (SM). orange
o:<<<foboo.
Moist, gray, SILTY fine 10CO."0 SAND (SM), few ~ne gravel.
E)Q1"m ,f ",""','en 00000" ,. , .. ,
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2" OD SpHI Spoon Sampler (SPT)
3" OD Spilt SpOO/l Sampler (D & M)
o No Rorovary
IJ Rin9 S.mpl&
M· Moisture
'SL W.lorlevelO
171 ~"e'hv T""" ~~mn'" Y Water Level at ~me of dnlliog ("'TD)
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0 ,
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" , , , , , , , , , . '"' ,
1-------------W •• U..redTIII'--,
I" Ma;51 ro we', gCdy. ~"O III modium SAND {SP). '"""9" o,;datlon, maUling. I'll •
1----------------iiil-- --------M w I " f~ Wet to moi$1, blu<>-gray, fine to coarse SAND. few ",uodod grav81 ISP)
" I ' "
, ,~"~ '0 coar ... SAND (SP). .fil,,, I·, '4
SatLOm 01 oxp_'on "",",," " .... '
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3" OD Splil Spoon S.mpler ID S M) U Ring Sampl. ~ Water Level () API"""Od by: )\
" "'~h ~om"" ~ Rh.lhv T"h~ S"mnle ~ Water Level at ~me of dolling (ATO)
• • • I • • • •
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g j In lilllill ,
0 • 0 DESCRIPTION
" Damp to moist, yellow. light 9"'Y,
0",n9" ",'dation
, , medium SAND ISM), slight •
----; ,
,
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--;
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3' 00 Split SpOon Sample' (D & M) II RI"lJ Samplo " Waler Level ()
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Domp 10 mai,t, SILTY SAND, [ewine gravel (SMI·
2' 00 Spilt Spoon Samplor ISPT)
3" 00 Spilt Spoon Samplor ID & M)
D NQ R.eo",,'Y
Il Ring Sample
M· Moi,ture
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, " ,.T •• _ , " , I .t time of dril""" (ATDl
• • • • • • , • , • • • •
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liammerWeighVDrop _ 3 • Hule Diameter (In) ,
g i In I~IIIIJI BlowsiFoot " 0 " 0 DESCRIPTION " ~ '" "
" -9%~lg~3n~~-, rIO , , , " , , , I c ,
, Wei. yellow.brown to gray. SIL TY ~ne to 00.". SAND (SM), tow flo. " wavel.
-,,,,-~----
W ,., Salucated, ~"'Y' medium to CQa"'" SAND (SP) 10 SILTY SAND. few fioe I~i 9rnveIISM). orai\jJe o'"da';on. 'W
" I·" I ::'::f:'~1~",,;:'~~;':~oc I IIllf I I I , ,
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,
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• • • • • t • • • , • • • ,
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, cc KoI~ Pi"",o,or (in)
g I In 11111111
BlowsiFool " " I~I " 0 ~'ON " '" ~
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" Moisl to saturated, gray, SILTY fine 10 medium SAND WM) 10 ~nD 10
med,um SAND willl tra"" of sill, few lO"oded 9",,,.1 IS 1_ '<0 c
" S",ura'.~, 9"Y, SILTY ~'-. to medium SAND ISM) '0 fine to medium " ,~, SAND wllll tra"" 01 silt, few rounded gravel (SP) , I~I
" M~151, gray,/: , , I"' " , ,
B_m oI.""rnat,on Ocr"",, 16 ,eel
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ii r,_" ~"_"'" " ~ho'"" T"ho ~"~"'o.J: Wale, Level al time of dnllln~ (ATD)
• • • • I
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l!il:111
• Blows/Fool • 0
0 e ro • 0 ro DESCRIPTION '" '" ;0
" ~ :;:\\::·~:::"!~~t.;; , . ,
MOist, brown I , I I • gr8vol (SM), orange
o>:i~.tion, ,
; Moist, brown to gray, SILTY fioo to coarse SAND. few gravel (SM), ot"oge ,., o,;d.~on, mOl!ling.
W Saturateo. brown to gray, Sic TY fine to ,,),>rs. SAND, row gravel (SM), ., '0 ""'"[Ie oxidation, motVlng, "1,\1
Till
" W.', gray, SilTY fino SAND (SM), row,"" gravel M '4 f~
~ ,; MOISt, blue-'9"~' Sic TV [mo to c=,.. SAND (SM). low fine gravel. ~~ I~
"","om of _b""oo b<ring at" 5 f90t
"
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,
"
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• •
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[)amp, light brown, I
Darnp. yollow_broWll, SILTY ~". to medium SAND (SM).
Damp \0 we •• light yellow-'''OWI1, SilTY fine SAND (SM), OJOOnge oxid"on
"
Moist to wet, blue_gray, SilTY fino to worse SAND ISM).
MDlst, I ~"e to "'"',,'" SAND ISM)
2" OD Spilt Spoon Sampler (SPT) D No Reoevory
11 R,og Sam~l.
M --Moistuffi
3" OD Spilt Spoon Sampler (D S M) "2 WalerLevelO
Hole D;arne"" (In)
; li!1
'r1' ,
Ii'iI "-~, ~O~"'Q 171 ~hel T".~" , Water Le~l.t lime of drilling (ATD)
BIOWSIFoot
Loggod by: MT
ApprCM>d by: 1r1.
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Damp, ligl1! orO\"" SILTY fine
Moist. yellow_brown. Sic TY fine 10 ",.d,om SAND ISM), orango ())(Idatlon,
moltllng.
Salurolad, allve-br<:1WOl, fi"e SANOY SILT (ML) to SILTY ~"e to medjum
SAND ISM).
"
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Molst, Illue-g",y. SILTY no" 10 coarse SAND, low roun~.d gravel ISM)
Z' OD Spilt Spooo Samplor ISPT) D No Re"""'ry " _ MoOs!"",
3" OD Spill Sp,,?" Sampler (D & M) U RiOg Sam?l. " Water Lev., ()
Grab S.mol8 o Shelby Tube Sample'': W.i1>[ lovel allime of drilling {ATD)
Loggod by: "T
ApP;O"SO by: }1,
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Driller/Equipment
Hamme, \Voighl'Drop
,
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...BL1511)3Jill5120~
Blows/Font
DESCRIPTION 10 20 30 ~;;;;,--" ffilffi-ntl
,
"
"
Mo<st. Y"Ilow-g,ay, SILTY fiM SANDiSANDY SILT (SM-ML).
-- - - - - - ------TIII-----------------
S.'ura'od, Yellow-g'.y, SILTY fio" to med,"m SAND, few floe 9"'"01 (SM),
o",n~ o>id.~on .
Malst. blue-gr-.y, SILTY fine !o medium SAND ISM). !race fine gravel.
sljght ""'"ge ",idallon.
o No Recovery M _ Moist"",
[] Ring Sample .V'. Water lo>vol ()
l.<>gOOd by:
ApprO'lod by:
2' OD Spilt Spoon Sampler {SPT)
3' OD Splil Spoon Sample, (D 8. Ml
Grab &le IZl Sholby Tul>e Sample.t: Wa"" u>"ol at time of drilling (ATP) --'---------"