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HomeMy WebLinkAboutSWP272167(1) A — TECHNICAL INFORMATION REPORT CRY OF RENTON RECEI VED FEB 2 5 1993 HIGHLAND COMMUNITY CHURCH RENTON, WASHINGTON BUILDING DIVISION PROJECT 92-60 PREPARED FOR: HIGHLAND COMMUNITY CHURCH 3031 NE 10TH STREET RENTON, WA 98056 (206) 227-7883 PREPARED BY: PACIFIC ENGINEERING DESIGN, INC. 130 ANDOVER PARK E, SUITE 300 SEATTLE, WA 98188 (206) 431-7970 C l 18u12 exniacs 5/�� 1993 a January 15, 1993 I . r TABLE OF CONTENTS PAGE I . PROJECT OVERVIEW . . . . . . . . . . . . . . . . 5- II . PRELIMINARY CONDITIONS SUMMARY . . . . . . . . . 7 OFF SITE ANALYSIS . . . . . . . . . . . . . . . . I l IV . RETENTION/DETENTION ANALYSIS . . . . . . . . . . 13 V . CONVEYANCE SYSTEMS ANALYSIS . . . . . . . . . . . 14- VI . SPECIAL REPORTS AND STUDIES . . . . . . . . . . . ZI VII . BASIN AND COMMUNITY PLANNING AREAS . . . . . . .Z Z VIII . OTHER PERMITS . . . . . . . . . . . . . . . . . . 2-4- IX. EROSION/SEDIMENTATION CONTROL DESIGN . . . . . . 2 X. BOND QUANTITY WORK SHEET, RETENTION/DETENTION FACILITY SUMMARY SHEET AND SKETCH, AND DECLARATION OF COVENANT . . . . . . . . . . . . . . 0 XI . MAINTENANCE AND OPERATIONS MANUAL . . . . . . . . Z3 2 Pago 1 of 2 King County Building and Land Development Division TECHNICAL INFORMATION REPORT (TIR) WORKSHEET ProjectOwner C�-w(eCol Project Name L))Li 41,/2r COA"�. Ckl&1�61,i Addross��31 nr I✓-T-I ;i- Location Phone 2?7 - 76�a 5 Township Z; C7 Project Engineer R�L 011-D-� Section Range S ��'' ���� , r��i�j�[,f.� I�IC- Soction Company s + J r`i L, t ° Project Size 2 AC Address Phone I -,�/ 4 r �i�rr�{L ���� '= ��� Upstream Drainage Basin Size AC eA c,:A cl �'�. 4-71 7� 0 Subdivision 0 DOF/G HPA Shoreline Management Short Subdivision COE 404 Rockery 0 Grading 0 DOE Dam Safety Structural Vaults Commercial FEMA Floodplain Other ( Other (onOMOL` �',Fc IT�LI�?A•L�-r�. COE Wetlands 0 HPA (� Community GZ r tITGY'1 Drainage Basin NAM 0 River 0 Floodplain Stream 0 Wetlands (� Critical Stream Reach 0 Seeps/Springs Deprossions/Swales 0 High Groundwater Table 0 Lake Groundwater Recharge Steep Slopes Other (� Lakesido/Erosion Hazard Soil Type Slopes Erosion Potential Erosive Velocities � � L IC) °7r, 2-3 (`(�S r� 0 Additional Sheets Attatched 2 1/90 Pago 2 of 2 King County Bullding and Land Development Dlvlslon TECHNICAL INFORMATION REPORT (TIR) WORKSHEET . fi REFERENCE LIMITATION/SITE CONSTRAINT Ch.4-Downstream Analysis t�onr- a a 0 0 a 0 Additional Shoots Attatchod Im .g MINIMUM ESC REQUIREMENTS MINIMUM ESC REQUIREMENTS DURING CONSTRUCTION FOLLOWING CONSTRUCTION �l Sedimentation Facilities Stabilize Exposed Surface [ j Stabilized Construction Entrance Remove and Restore Temporary ESC Facilities ® Perimeter Runoff Control Clean and Remove All Silt and Debris © Clearing and Grading Restrictions Ensure Operation of Permanent Facilities ['21 Cover Practices Flag Limits of NGPES Construction Sequence Other 0 Other - - ME ", L1 Grass Lined Channel = Tank Infiltration Method of Analysis 0 Pipe System 0 Vault Depression Open Channel = Energy Dissapator 0 Flow Dispersal Componsation/Mitigation 0 Dry Pond = Wetland Waiver of Eliminated Site Storage (� Wet Pond Stream 0 Regional Detention 'S Gl�S Brief Description of System Operation Stir- rr t'1�w .i> ✓�����i 1'i r� Colly✓ Facility Related Site Limitations 0 Additional Shoots Attatchod Roforonce Facility Limitation Y Drainage Easement Cast in Place Vault Other 0 Access Easement 0 Retaining Wall O Native Growth Protection Easement Rockery>4'High 0 Tract 0 Structural on Steep Slope 0 Other - . ' F. I or a civil engineer under my supervision have visited the site. Actual sito conditions as observed were incorporated into this workshoot and the /} attatchmonts. To tho best of my knowledge the information provided �i hero is nccurato. syn.dm,r. 1/)0 l� I. PROJECT OVERVIEW THIS PROJECT IS LOCATED JUST SOUTH OF NE LOTH STREET AND JUST WEST OF KIRKLAND AVE NE IN RENTON. THE TOTAL IMPROVED AREA IS APPROXIMATELY 2 ACRES. THE SITE SLOPES TO THE SOUTHWEST AT APPROXIMATELY 10% AND IS CURRENTLY USED FOR PARKING. THE EXISTING CHURCH IS TO BE EXPANDED AND THE EXISTING GRAVEL PARKING PAVED. RUNOFF FLOWS IN SHEET FASHION FROM A PORTION OF THE EXISTING PAVED PARKING AREA TO AN OPEN DITCH. RUNOFF THEN FLOWS SOUTHERLY TO NE 9TH STREETS STORM SYSTEM. THE REMAINING GRAVEL PARKING AND DRIVE AREAS FLOW IN SHEET FASHION ACROSS THE GRASSED AREA TO THE WEST AND SOUTH. THE SITE DOES NOT LIE WITHIN THE AQUIFER PROTECTION AREA. '..'7`r`L".4Yta_-:/1.4` i'� `.c +r�_: V.l: ^- ,_.:;.:. .:,r,-..c•....v ....,....... -. ... �• - '%eE?.�'m�FKd-�F BC r"Reproduce�d x �` "rHILLSIOF 1 W 6 - I�'7� H,. w . �`:> 8S SE rs L 69 Rom. a "�' � fitir .ti'i SEWI m_r" `..-Yf with permission granted by TIIOMAS BROS. MAPS. �� m �I" g = ip ( W` ;b r sy y71ST copyrighCed by THOMAS BROS. MAPS. Tt is unlawful ' Tzeo 7 < ! _ 7reproduce all• or any part thereof, whether fora.sE7iND sT �z opse or resale, without permission." ' 'S r f HAZEP ,t,tiSSE-'� \ W ll NF 507 >•s. _ �Y GZ C] � ,.Ij bf NEWCASTLE - I�p $T a �"a r` :r t�'• %M ?F� 7.:x SE16'� c 5E 75 , .. ` < 1 G 7� •.M¢� II c I mt m �aF `+mN 7 Nt1 = < _liaSSi , U SE xyr �-•.,, N a s P' 77 =.'< "n sL^ - =SI E x._ F HRH tr 1 O +L tT 1- •P•iet�' d„ L 5T:7,B: <, 44 NI; „ n o 7 x . ' 1 78TH G SE 1� x y - f uva n Av BEACiF` NE 43 ,5E= BATH 79 x 5_ 57 s 80 1 E r •0 2 sE vTx °ksWo sr a t2. PARK` f ! PL `7 s sr sr� 139TH ST W to H in H N sE .7;,u xEl ev 9�Sy ... r I (� I H �_r%s.L1KE K y 14q efS 1.'•;y) s rx 4 se d0*n sr •' I < N T1r' ur 6 PF SE.1. "4Y ,m � ,� CJ .r J l Ar 'SEr�tiN,� SS I oP` :;!7- I eSiP I i sf� I I A tv �. s ISE R° ��r t $T, non' 84TH .8 $7 y tz 40TH ST � tSA � �� AVALON I 1 N 38TH ST ( A Im SE 66TH ST - L� If s F^Cn'• y N 3TIN Sf \Q�dEF SE 87Tx 5T o E-': 0y" N ry S/STrs N �((s J N KENNYDALE - 36TH ST< I SE^36TH S= SE `}' > I... 88TH....... 's....ST 1, r 1 N7M P� BEACH PARK 35TH ST - s^ C py: SE89TH'S7 V k• ��`� 1 PL Io �J�� < < I 3 sr,m``a N 34TH _ 1 SOUTH POINT 33RD PL I NE 33RD 5T I'. SE 915T _ - ST x� 1 N 33RD ST — 9cN ST "1 ;x �Af t 'r s SE I 2N 91ST 57 " i tEK COLEHA,Y j ' NI 315T 57 N 1 T ST YTx Ga 'xs 's w sE AG4 YI 4 zn POINT N 3oTH a sT fua3C IX�� y < s; r 95TH H < roy PALL Rp m N i 29TH ST Y r SE a o dsf-V"`Az ?'7r &.,;..::.-; cl �{ :S •..� -:� F =�ssTx o< I c.7 N I. N 28TH PL I NE -28TH 5E soN yl'LAKE A Sim-NE a•27 ''lg1 — % r rs9M SIERRAS I L_/'1 KE - < CT <i - 3� _ y i�' s- wTx sr HEIGHTS P o < r m R 2 < tWiz !q'� N 26TN ST -.,E z I g - '� - Sr SG Sr PARK N N"257N PE N 2 TM CT SE TOOTH I 4 ""+'KENNY E N 'n 5< r ` t I� I s laotx SE~ 1OOTN PL LIONS rn w ":�4TH__SE OOiH h PL PL 24TN STs '++ NE NEl 23PQ PL SE ' 1p '� tt xE 23W ` -- SE 102NO ASHI NGTON y }t �<' =NEB 2 NE N sT iI S"03M a "WO PL a d ST E LL ST RE li lL�•(\ II\i1 tY'I�Q* < �O trF SE C-T" �'n w G rt e G $E loaTN CJ P 1�M 20TH S 201N 5 ` W i {' I Si i ..< S vi .��. ?'?r ST :I y 1 NE W i c 1 06TN STD NE Qh. it _ �t .3 1 SE lOSTH 5T � di. F:r�- IP Z� d T�.N rt � TIE ;BM W ><0 7�LASS A� •�� i-z J:r-i�,- i- � is AY � �+�y t wm = Z t <W C I U ET rt:sx _ , i BOAT UlM'W1 T W z PLGD z e snl ol.... z � � y.L �+ I 141N < rtlmara fiF s uTx ST K .�_ 14TN Y ' sr -.� �` n �� - III I t+ �?. p�1Pt� �• 0 - ' �- •N DIY < w SINE t3rx =IB'. CREEK. yIOH 1SSPQ9x C' E7p� `_T AFlK1RfA v' 12TH NE NE ST -12TH ST '+ SE 1112 ST H z7zTx z U —{ ST 112TH ST :l` 3 1 Azt� I "Yo ,,k + 'y `r p OLIVER X H uzn ti 1`- sr i 57 .IN AV 113TH S zY`I 10f� r•pp 17n1 _ NE uTx a I zi W HAZEN H AR DR 4�,E� ~' ST " NE I] s 4 C I H51 r L H Si" I SUNSk73 - oTN Tk p ,.. r Y t y' " 3 01 T 0 7. n r ~ 115 ST t AIRPORT , �, I HE 10rNu'M i NE 101N n < I s vt S15 PL .I .BOAT LAUNCH CT $ kc BOEING HE lOTH "�' ST 17M r. I ST e s RENTON •1 I Y ST SE NE 9TH I 3 - ^' •rz ` S '' E 9TH - lie 7y <I S{ L' S I11TH PL PUNT KIWANPARKto a C T < 118TH < �ST I -� r � NE � c -• c .� h:,�• =7� � - � 7 ' a� s NE r• _s NE BTX-''��T I'�t T -� d '0 5� NE• 8TH 5T < L SE 120TxP Si T STD > - _�ST a ,r^, TiY NE 9M NEI 7TN ST< +� NE 77x SE!121ST 5T r 1 ST 121ST 22ND m I � a TFrtrtxxx T; i 123RD ST G NN ITH$T ? _1 �r^ PARKtRs _ill 5T - z '• �y,NE 6TH } P xE'6i71 - z f II . PRELIMINARY CONDITIONS SUMMARY l ' OZ ---' A ���,fC--->•s� '�-,-5—"'LLLl"'---- �19�. wt3 ` 5 '��., '• —I � jC.AgD n T II QM�m,-3 .I�m � Cvc ,I 1(�I II n •. 'S r ! \lai `; � I ,C.y -f` • r tr" <t' n AkF � '°� rr , , _ :•� t!M1„`.'.,yy{��,t+�,�.,' '•!tJl r of = , , n i.•� , r' 1, C t••F, .�P .,r $ 9! t.. .Sltht ly tlr eaahu\', •'S _ _y mU L' t a Il� t• — - ��1_r elxll! v.: a1 •, ier.n,,.C"i }�_ } ti tr. e t�ty.n Sm 5 t5 I n C�al $ t'3 '• "a.. -y/� 4ti ~ '" A D" t EVC i ! , � ,,� � t�r. .y:' , \ '� t:. s\�• !tiJ —/ 4'a rr �41 t•,Sr`8 : !•}rr 1d r ,r y 1 r.l �� . I� t, ASC'Y __ 1_ ,.t4 1..,,pr \ ,t t �y,r.-• AkF �I I- I ! ,.j Ur I -.r I j I:i ,I f• ' ! `•`S v+h, b `, AmC. Ur �'' t �.•�7„ y c 1• R rvtr. •a r�xl.l. �dG .�y� q 5 D Ev JA -- --t.. PlantO 4 �� .. I IIII' RU ACC r RdE , • v r� 1 1 13 r is -- I�t "(y + 9n... , , -w. t , ���g tt •\ •X. �., 3 , �' •I r ps-� 3 •1 9 rr i I M1 •1, )r( /i y t IY.Y.,\ rl�l e't�!1 ti\��k! ' J•jyt�,1, Y 41ewl,,\-. ` \,,S wr•"I•l 'r 5 �P _ I71 'cgp AmC' I °"pxft•{"+•s4/ Ai 7 .,��st,r'�,,�..1�N,�r ��{S 1' ,r 1 � rtr./ a3 pia r, 1 •.� r ".', ` ''� p� •, ■. Il i •~ ® Ur .� 1t �. �'.[3igti�nn 1 '.� ;I r l •t \rl �, l\...I!'! ! r }r' r, t. ...'Y;}`i t .. 8 m c r. 9•7,774 f � , 413 i ,ri AECs.•tt 'f 3r rl. a ®� ,• ■ Q`7- t� =:•./:'r.'I ==t\r. - r ,e 't r t !r S r 3:. }� , 1 S` t 1 ^^ gw 915�vAr�. �i0 I ACC1, !'• ,S i 1 a,� �!: "i a CQ r �� 1 O n1'_-\.•, - An t St 'rIF - ,tX•+ iyl. , r\�lh, t f r`O t •Trail cr m n CvD y rl, r iBM 'tr•3 •I i� �a■ s'�1' t ark,,• ,r ri M t ,9 ,! ' I. h� -:' i 0 ti' 41.311.. 3t3.♦ 42R' r--- ., # � � fl .1 ,.^` '� •,! ° i` --T- I n uLsr f* . ri' �'P ' to .•Ft I ' .,'.y1 1 iGreenwood CC �,•r:. !'``, flr 1, •�'tll 5 r, n VfleiJ� - �::r,,Sp},•STJ7{(j,ty \/x CVD I r . 1 t\, 1 1 r rY. \ •• r' r�, tr4r r!7 F.! iai f: .�I�tt I,"\ Y Ur •AkF � '`, i + tyrJ 1. 1�4.IytJ(.�r4 ;,��{\A�C y•.M1},r4 a 1 l,`� i�i.'. i\ !�'1�ht4t.�litl ,, �F,f.t.t t r3•,4y\Ntir.^ _ I •,d,t" v I r L\ \a v 406`ii j tt ' I:• 4 1 ?L �ir�\' r •f1t01i riI-EvC ,' J r77 A - t ,�' I' Cem 1 I 1 oseb$lt r ----' yGRAVCL . rrr Q��n..4 n a♦al! \ al tt ,�\ Park` Pc k { , i s ua j a \ r fir, L +t I•� �` 1. • /�a` y`. BM .'� ' an . � �, 16 `\\-•!�/ i �321 t. , @ale.( ' 10 SI ���,y�.:,• \J 15.1'pl xl i. .k r',; I`�+ I f�: � '•Rh• q �' s t3, a o t r " I �.ii: �• l � � JY,t 1 1 1',•r _I�-,,. Tlsir •\AkFr ' v} a`� 1� v._ ,lyr , * ..�I.r r`'m•Frt r,.. ,\ \\ 3 ..,, s5, k5 -}� t •nj Y°rl. r s 11 � �/ I■ I ` ''.' 1c -• �;� r I d l.', a1v ti-1_,� P�t I v,: n�C,h 1. • � '+ .AliF ! p,� I" � i r.�fi", )t ` '4t'I i� ,:��., ,i\t>.,,J.�`+/1. °• �� to •�' { .• •., L � rl�' r 31 s tl?L• L, -�--- -�• ?1 C -= ! .t _ "�°�� -_,� .J'.�' s _ _ 'r ' 7_EvB -Ir.r I La. ��jj sr 1 M137 s Ak Iwo D F ' �.,,• — n .r 'r �\` AI;C '.�' ! L\ "_ 5 r' ,<L O//C ! J .3,r11, ':.�:rc.y { rr R ,�t yttlhY lJl'i�.� T •`L " '�'., T `,' u �,,I•;ro;rt'F AkF� +.'\N v'il• y� ?4. LAg �r ^`VJ` Y ' u: PYSu P ♦ O r . xA •.�.r r f e ♦ 1'.ri•,'r i r\ ,t;l /r 3`)lt l,` � At-D 20 /V I4 �\ x•J i�.� , t fl,,,t � "+y It1 w,d'd,` 6 r \\ � `� + � 11 it ,•b, t 455u l , ACC ,l\�.� 4 r ,JAkFr I t '� +n.�,• } r I.tr ,kF1� RR�`C•R o4,,' ' f �I�r I Ur Y ,^•"fit$ r i� \\'O\. 4,;;,e rI �ti'ACCt pi\ahc „'..A ^ t,, {, 'Pafk',. NE �l 515 ,' n 7, 'AQU,C r �t^�t5 -�ee• N 1 's�•U H�' �,.�,: ` !. .'� '' ,. \; i,'I It y r ( l� ; y,. _; ;L" t 4 ; b •x3 , . ' °•, SOILS MAP ,4 r u e •w�J t e s vC s f �} r�+x ! ,t 1;7}ri,• ,�! I�.;LUy,JLlrr �♦ rl.�a3 %frQjekl� .`x\ r r..t ! : .I.... 4_M�r�.rlB 1`'Ikr' a etl lhn y:s f 4 ir!r w '• !{t itit+"1�ai`.rl,'•'I© '�6_ i —� .. .tifnl, "� �6 -il: l I I \ I II !I rR �'� `•-II----�--__--- e{L _-4• P. Kennydale 'Il%• �'� �_L .�� _..�i. xJJO 00 �� I� -I Poin DGS BM 45 437 tq t�Pawet,PlantNY' '' 1•; �1 t 1 ' G • a \ �� L r Jl RD�ITOfN,1 r/iy . a,, b' //` J , [ f (I I• \ tg. 'r rrir%± WA, ' � �.:::::;� :` �►i/ �;, �. .. t,�� '�• �. :;!;r � �1 11� i"' •N fin' rg171Sch Hea tf.BM ` Med .:� , �� ��, ��n�^'+h�� '' I��� �Id •'.'%' •,\ '\.�� y.l l'1i � "M �1 �pry —- p" J:,11 ��- — �� /0 ;TON • �AIL �� 1 � / 1 � :��'// _- • l A R�dT 1 rt r .t J'�:♦ t 1\v x341 ���•••--- •ot�\\, •I Tra fl tti, ,, „'t 4 tBMj �( 'Y�` '�� _ �^�i�� �mi9 n �_��.�11-��ParN_�• _ ,.,�� _ - Eield Green oodlCOrp i •, 11 IL It t i \ I o' 1'\�.7/J Y n \A 1 406 ' f t Ot �/ n Park PIT 11`\Bm In 321.1 10 TOPO MAP ...,..........^,_,..:ems,.,..,-'... i I � ' � to ;. j 7 Y .Yr _. .a 'j..•w w::a_' _1 _' / >� J•r7 � ,..' ,11,.a. Yea '.r j° urmm�o r.m...:uo. y •-Ci ---------------- lb IU'1if10 aJNI1SIX3 \s r 2s rrlor \l� BASIN MAP i0 III. DOWNSTREAM ANALYSIS - LEVEL ONE THE ENTIRE SITE DRAINS TO THE EXISTING STORM SYSTEM LOCATED WITHIN NE 9TH STREET$. FROM THERE RUNOFF CONTINUES WITHIN THE CITY OF RENTON'S STORM SYSTEM AND EVENTUALLY OUTFALLS INTO LAKE WASHINGTON NEAR GENE COULON PARK. THE EXISTING SYSTEMS OBSERVED DID NOT APPEAR TO HAVE ANY EVIDENCE OF ANY SCOURING OR EROSION. ALSO, THE DRAINAGE FROM THIS SITE DOES NOT APPEAR TO CAUSE ANY HARM TO ANY ADJACENT OR DOWNSTREAM PROPERTIES. Kennydale !j f• �! xaYo ti , -I Poin •r 4 3 i © st g n 45 I-- - -� r,S l/I. t�Q� I y r�i�. �'Rtt?�.k'r •, Joo 1 11.�,l Ir— — x a7.7 . s ��\' Y'rr it�A�,s�l.'�� r�� >ib��l� x ��' � •�_\ -'��) — _- I • u a x255 r t - i Sys�,�� ;.�' I 1�,:4 •t�, (` *., 1 - O v I vl Y� gtti• �7 I 1 1 I t ` y •fZ�i "r 'r o �I9� ' t' r '>' �� P � t• gM cZ ` i'P°wer•,Plan\ � "�r!t � � ,1,•. •�•//, L G� cc • �• M � � I L In_ 1 900 uy'+Api - �� I �: .y; ." tL�\t 4.::���� � •Irt 1`I 1 y 1`� 'fir �tyii +�,f.ti�4i��.r,,� •N?,.:; Ighlt �pn-i 1, , 'Yi!°•/ I I:.'�..,....::.�:i: "'••"'� } .,�I r .�, /��.'n;1.; i` A , ' I .i _— Hi)1t), (� . C`jtiyh.)if \\•►g t+ t 17�i o I fx )DEL 1 ' = MI ' .. � W�lt:. l_L� Chi � , r "' i tg�ry�'' ' •� , �• � •� �_ � F' / tj--�' Y�avM.._ \ill � iTON I---�_• _ �� . rt � Y•':�` �� .�>y t +`fir: \ ������• . �-�� Trail;� i' i BM%. .j I� �r' f�"@� ��? 4pm _ p -►r_-rlPr ---- _ :.,n •. �.�: O 11 Field I '� h :.;�. t •/ r' \ ��) :ii Greel °odiC q u -"• Q (:;:.lJ .� ,i- I t . ) l'_VI C:I Jo 0 ��wJfJ K II p k 406 a �/} � � asebait• �I \ Cem1-' x;� �- .o� n u Park J� BRA 41 PIT �" \ • /f II BM `ate`\ tt at AN I�', 'B' ' .SCI !■ .5 LN. P � ... :...,....,� \���`�.. 't.1:•- •'. - ..�.��- - - a �a = rd h 7- ''~ „-4w Sa� � I :1f� •n;l 4' lH$;;� �n �,:� 1'b, 1p �� © //Y./�• '•� ��� ;.� \ Sub DOWNSTREAM MAP r �} '�� � •' \II ° --- ' i "�O u r -- --- _ ,((!``1-.1?.9 •�� ��L` �,• � i •' ' - �����//�al ,'� �N�Cp`�` .a � �I�, �Q�L \o'er.f�_'� ,;•. 1.�. .'\. �•11'• .••/: ' t r o _rRn I'" nr^g�.,vw K I H J \�l `w`.- // / 1\\�i� �� ¢.: ll 0 1 \ �111\A\ 1•`• �4.. �. 4� i ..�i.� n IV . -%ETENTION/DETENTION ANALYSIS AND DESIGN hA V. CONVEYANCE SYSTEM ANALYSIS AND DESIGN SINCE THIS SITE HAS ONLY 0.3 CFS INCREASE FROM EXISTING AND DEVELOPED 100 YEAR STORMS , A DETENTION SYSTEM IS NOT REQUIRED. THE RUNOFF FLOWS TO A CONVEYANCE SWALE AND EVENTUALLY TO A 300' BIO-FILTER SWALE. THE COMBINATION OF SMALL FLOWS AND A WIDE SWALE SHOULD PREVENT EROSION WITHIN THIS CONVEYANCE SYSTEM. PACIFIC ENOINEERINO DESIGN INC. 'OB L CIVIL ENGINEERING AND PLANNING CONSULTANTS SHEET NO. OF CALCULATED BY Div DATE .......... ......................... .............. .............. .......................................................................... .................................................. ..................................................................... ........................... ................................... w ......................... . .... ................................... ............. c ..................0 .............................................................................. ?........................................ ....................................................................................................... .............. .......................... ............................................................................ ...................................... ....................................................................... ....................................... .................................... ............I A ................................................................. ............................................................................................................ ... . ........ ............ I..........S.6 ........... ................... .......... .............. ........................................................................................................................................................... ......................................... .............................I ............................ ......................................................................................................................... ................................. ....... ............ ............. ....................................................................................................... ............. .......... . .. ............................................................................ ..................................................... ...................................... ........... ........... ..................................... ....................................... ....................................... ........................................................................................................................ .....................I:. .............................................................. !4z 4L .......................................... ...... ................................................................................................. ............. ............. ............. ................ ........................................................ .......... ................................................................. ........... .... ................. ............. ..................... ............. ....................................................... .............. .......... ........... ........ ................................................................................. ............• ..... ............. ............. ........... ........... l..q.............1.......... ................................................... fLA .......................... ............. .................... ...................... 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I ......... ............ .... ....... .....I........... . .......... ...................... lv C. 1: ........................ ......................... ........... ......................................................................................................................................... ........... .......... ............................................................................................................ ........... .............. .... ........ .......................... ............. .............1................................... ........... ...... .... -�.......................Q,..t ........................ 130 ANDOVER PARK EAST, SUITE 300 SEATTLE, WASHINGTON 98188 (206) 431-7970 FAX:431-7975 11/ 4/92 scific Engineering ComPan, page L HIGHLANDS COMMUNITY CHRUCH ADDS. FION 9260 BASIN SUMMARY BASIN ID: A10 NAME : DEVELOPED 10 YEAR SBUH METHODOLOGY .TOTAL AREA . . . . . . . • 2 .03 Acres BASEFLOWS : 0 .00 cfs RAINFALL TYPE . . . . : USER1 PERVIOUS AREA PRECIPITATION , . . . • 2 .90 inches AREA- • 0 . 19 Acres TIME INTERVAL_ . . . . : 10 .00 min CN . . . . : 86 .00 TIME OF C.ONC . . . . . = S .00 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .00 AREA . . 1 .84 Acres CN . . . . 98 .00 PEAK RATE: : 1 .46 cfs VOL : 0 .43 Ac-ft TIME : 470 min BASIN ID: A100 NAME : DEVELOPED 100 YEAR SBUH METHODOLOGY TOTAL AREA . . . . . . . 2 .03 Acres BASEFLOWS• 0 .00 cfs RAINFALL TYPE . . . . USER1 PERVIOUS AREA PRECIPITATION . , . . 3 .90 inches AREA - :: 0 . 19 Acres TIME INTERVAL . . . . : 10 .00 min CN . . . . : 86 .00 TIME OF CONC . . . . . 5 .00 min IMPERVIOUS AREA ABSTRACTION COEFF • 0 .20 AREA - : 1 .84 Acres CN . . . . 98 .00 PEAK RATE : 2 .01 cfs VOL : 0 .60 Ac--f t TIME: 470 min BASIN IDi A2 NAME : DEVELOPED 2 YEAR SBUH METHODOLOGY TOTAL AREA . . . . . . . 2 .03 Acres SASEFLOWS: 0 .00 efs RAINFALL TYPE. . . . . : USER1 PERVIOUS AREA PRECIPITATION . . . . 2 .00 inches AREA . . 0 . 19 Acres TIME INTERVAL . . . . : 10 .00 min CN . . . . : 86 .00 TIME OF CONC . . . . . : 5 .00 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .20 AREA . . : 1 .84 acres PEAK RATE : 0 .97 cfs VOL : 0 .29 Ac-fit TIME : 470 min 11/ 4/92 Hacific Engineering Company party HIGHLANDS COMMUNITY CHRUCH ADDITION 9260 BASIN SUMMARY �.,1 r_x, pn2FLlr�, ba7- (74v;d/,) BASIN 10 : a 10 NAME : EXISTING 10 YEAR SSUH METHODOLOGY TOTAL AREA . . . . . . . • 2 .03 Acres BASEFLOWS: 0 .00 c::fs RAINFALL TYPE . . . . : USER1 PERVIOUS AREA PRECIPITATIOi'v . . , . 2 .90 inches AREA . . • 0 .25 Acres TIME INTERVAL . . . . ' 10 .00 min CN . . . . : 86 .00 TIME, OF CONC . . . . . : 4 .49 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .20 AREA . . : 1 . 78 Acr4c- C.'N . . . . 94 .00 TcReach - Sheet L : 70 .00 ns : 0 . 1500 p2yr : 2 .00 s : 0 .2 0007 TcReach - Shallow L : 220 .00 ks: 27 .00 s : 0 .0300 PEAK RATE : 1 .28 cfs VOL : 0 .37 Ac-ft TIME: 470 min BASIN ID: a 100 NAME : EXISTING; 100 YEAR SBUH METHODOLOGY TOTAL AREA . . . . . . . 2 .03 Acres BASEFLOWS: 0 .00 cfs RAINFALL TYPE . . . . • USERI PERVIOUS AREA PRECIPITATION - . : 3 .90 inches AREA - : 0 .2S Acres TIME INTERVAL . . . . : 10 .00 min CN . . . . : 86 .00 .TIME OF CONC . . . . . : 4 .49 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .20 AREA . . : 1 .70 AcreF, CN . . . . : 94 .00 TcReach -- Sheet L: 70 .00 ns : 0 . 1500 p2yr : 2 .00 s : 0 .2000 TcReach - Shallow L : 220 .00 ks: 27 .00 s : 0 .0300 PEAK RATE : 1 .06 cfs VOL : 0 .53 Ac-ft TIME : 470 min BASIN 1D: a2 NAME : EXISTING=, 2 YEAR SBUH METHODOLOGY' TOTAL AREA . . . . . . . 2 .03 Acres BASEFLOWS: 0 .00 cfs RAINFALL TYPE . . . . : USER1 PERVIOUS AREA PRECIPITATION . . . . 2 .00 inches AREA . . . 0 .25 Acres TIME INTERVAL . . . . : 10 .00 min CN . . . . : 86 .00 TIME OF CONC . . . :. . : 4 .49 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .20 AREA . . : 1 .75 Acres CN . . . . . 94 .0r;*- TcReach - Sheet L : 70 .00 ns : 0 . 1S00 p2yr : 2 .00 s :0 .2000 TcReach - Shallow L : 220 .00 ks: 27 .00 s: 0 .0300 PEAK RATE : 0 .77 cfs VOL: 0 .22 Ac-ft TIME : 470 min �7 1/15/93 Pacific Engineering Company page 1 HIGHLANDS COMMUNITY CHRUCH ADDITION 9260 BASIN SUMMARY W,/ek, PA-(ZIW7l 4-0-1' �(ZAvfC BASIN ID: a10 NAME : EXISTING 10 YR SBUH METHODOLOG`' TOTAL AREA . . . . . . 2 .03 Acres BASEFLOWS: 0 .00 cfs RAINFALL TYPE:_: . . . • USER1 PERVIOUS AREA PRECIPITATION - . : 2 .90 inches AREA . . ; 0 .25 Acres TIME INTERVAL . . _ . : 10 .00 min Cis! . , . . : 86 .00 TIME OF CONC . . . . . . 3 .07 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .20 AREA . . : 1 .78 Acre,,,, C:N . . . . 90 .00 TcReach •-. Sheet L : 50 .00 n : 0 .0600 p2yr : 2 .00 : 0 .2500 TcReach - Shallow (_.. : 200 .00 ks: 27 .00 s : 0 .0200 TcReach - Channel L : 180 .00 kc; 17 .00 s :0 .0200 PEAK RATE : 1 . 1.2 cfs VOL : 0 .31 Ac- ft TIME : 4?0 min BASIN ID ` a100 NAME : EXISTING 100 YR SBUH METHODOLOGY TOTAL AREA . . . . . . . . 2 ,03 Acres BASEFLOWS : 0 .00 cfs RAINFALL. TYPr. . . . . USER! PERVIOUS AREA PRECIPITATION . . . . 3 .90 inches AREA . . 0 .25 Acres TIME INTERVAL . . . 10 .00 min CN . . . . : 86 .00 TIME OF C:ONC . . .. . _ - 3 . 37 min IMPERVIOUS AREA ABSTRACTION COEFF" : 0 .20 AREA . . 1. .78 Acre: CN . . . . 90 .00 TcReach -- Sheet L : 50 .00 ns: 0 .0600 p2yr : 2 .00 s : 0 .2500 TcReach -- Shallow L : 200 .00 ks :27 .00 s :0 .0200 TcReach -- Channel l__ : 180 .00 kc : 17 .00 s : 0 .0200 PEAK RATE : 1 .73 cfs VOL : O .47 Ac--ft TIME : 470 min BASIN ID : a2 NAME. : EXISTING 2 YEAR SBUH METHODOLOW, TOTAL AREA . . . . . . . 2 .03 Acres BASEFLOWS: 0 .00 cfs RAINFALL_ TYPE - . : USER! PERVIOUS AREA PRECIPITATION . . . . : 2 .00 inches AREA , . : 0 .25 ;Acres TIME INTERVAL . . . . : 10 .00 min CN . . . . . 86 .00 TIME OF CONC . . . . . : 3 .37 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .20 AREA . . 1 . 76 Acres CN , . _ . : 90 .00 TCReach -- Sheet L : 50 .00 ns:0 .0600 p2yr : 2 .00 s : 0 .:2500 TcReach - shaliew L : 200 .00 ks : 27 .00 s : 0 .0200 TcReach -- Channe.l. L : 180 .00 kc : 17 .00 s : 0 .0200 PEAK RATE : O .61 cfs VOL : 0 . 18 Ac-ft TIME : 470 min 1/15/9 3 PE:cif ic Enginee'r ing Company page 1 HIGHL!;NDS C0MMUNITY CHRUCH ADDITION 9260 HYDROGRAPH, SUMMARY PEAK TIME VOLUME HYD RUNOFr- OF OF Contrib NUM RATE PEAK HYDRO Area cfu min . cf-AcFt Acre' 1 0 .60S 470 7843 of 2 .03 2 1 . 123 470 13665 of 2 .03 3 1 .726 470 20486 of 2 .03 4 0 .967 470 12437 cfi 2 .03 5 1 .460 470 181912 of 2 .03 6 2 .008 470 26175 cf 2 .03 1l 0 .876 480 12391 of 2 .03 12 1 .282 490 18846 of 2 .03 13 1 ,833 480 '-6087 of 2 .03 1� 1/15/93 Pacific Engineering Company page 1 HIGHLANDS COMMUNITY C;RUCH ADDITION 9260 REACH SUMMARY DITCH REACH ID No . f-1010 Ditch Length : 300 .00 ft. Ditch Width : 10 . 00 ft Side Slope! - 3 . 00 Ditch Slope: 0 .0200 ft/ft Side Slope2 = 3 .00 Contrib Bas Mannings n =0 .0300 Dn Invert 0 .00 ft Dn W .S . Elev : 0 .0000 Num Steps . = 10 Trib Area : 2 .03 Ac . Design flow 1 .23 cfs Depth 0 .09 ft Vel 1 .39 fps Upstream W .S . Elev : 0 .00 ft . DITCH REACH ID No . 810100 Ditch Length : 300 .00 ft Ditch Width ; 10 .00 ft Side Slopel 3 .00 Ditch Slope : 0 .0200 ft/ft Side Slope2 3 .00 Contrib Bas Mannings n . 0 .0300 Dn Invert - 0 .00 ft. Dn W .S . E lc-v =0 .0000 Num Steps 10 Trib Area : 2 .03 Ac . Design Flow 1 .83 cfs Depth 0 . 11 ft Vel. 1 .59 fps-: Upstream W .S . Ei•ev = 0 .00 ft . DITCH REACH IUD No - B102 Ditch Length : 300 .00 ft Ditch Width : 10 .00 ft Side Slopel • 3 .00 Ditch Slope : 0 .0200 ft/ft Side Slope2 - 3 .00 Contrib Ba Mannings n :0 .0300 Dn Invert 0 .00 ft Dn W .S . E"lev' 0 .0000 Num Steps 10 Trib Area : 2 .03 Ac . Design Flow 0 .35 c'f'-,.. Depth 0 .07 fit. Vel 1 . 19 fps Upstream W .S . Elev 0 .00 ft . ZG VI . SPECIAL REPORTS AND STUDIES N/A ZI JII . BASIN AND COMMUNITY PLAN AREA Jinc NE�31st ST MAY CREEK MAY CREEK }E, PARK Oth ST, LL� MAY CREEK PARK SE 951h 9S �h th 9 .�,.< LENSING pV ASP C Bth SS 8 �--'� fh ST-- z I� 27th;; ST 98th ST ,h ` � NE 25th PL o = t SE t00th ST E ` 24th ST NE 24th ST NC 241h S SE 100th I E`23rd °L N N SE 101st r SE 102nd ST NC 23rd mmm s 22nd NE r ST < < < NE 22nd PL: L Z nd NIE}21st S, r m E 103rd ST E 22 Q o b�C o SE 104th ST oz > a w y2, Nt 20th �� \' NC 191h ST AO � �" > P� 1 NE 19th �' < 161n G, 7th C 17th E 107th P Y NE 6th ST >� SUNSET CEO tith w z NE m 12tn SrIL x v g M SE 12th Q ti� 03 E o h NE itlh o OLIVER M HAZEN NE 10th �J I NE 10th CT C HS w PIL M NE 10th'ST: S16th:ST NE 10th y NC 10th EN E 1 y g m £ N ST NE 9th PL�^ --� 2 o z NE 9th ST N SE 118ih � ST z NE 9th ST 9�r T S ENE 8th PL H m ¢ I z < A < rn n r; O ith ST ¢ N£7(h CD > NE ST " o CDgh ST NE NE 7th ST Z 6(h pt \ = NE m 1`i NE 7th,� y � SE 120th NE 2 ¢ a NE 7th QY Z z —J NE-6th PL NE 6th p rn s x NE E`,h L < 00 �9J qy M5th Nz STcl Nt 51h ST co SE o N 5th ST `.� DE O��� F-f `o n � 11261h 0 3�0 FERNDALE 4th `,T NE 4th CT I NE 4th ST I�NE,4,h ST 4th ST ST GREENWOOD NE 3rd PL CEMETERY N N' 2nd Sty �1T. OLIVET N£ f mTn�/ } CEMETERY n (A! 66 v .2 SE Is PL w RTY A CEOA%*R �1 zy ARK� RIVEF, `PARK SE'2nd , AQUIFER MAP N E VI I I o OTHER PERMITS r►� L4 IX. EROSION/SEDIMENTATION CONTROL DESIGN SINCE MOST OF THE CONSTRUCTION WILL BE PAVING EXISTING GRAVEL AREAS ONLY MINIMAL CONTROL WILL BE REQUIRED. SILT FENCING WILL BE INSTALLED IN AREAS WITH POTENTIAL FOR SEDIMENT TRANSPORTATION. CC.AgD �7 r .. � r ° BM� 1 � '`.;.r i J jl� .•I , (� B. CVC�' .11 fly _ •, ^ V ; t' m II i p ! A C ACD ✓ter 1(�I � 1 . .` 1-�;.� •`..BM s :. °ii".F :-;' 17 :: at.. . t ti I II "1 •„t T Il a t %5 ar 9 p i '' . I. 1'• 11 sy ntCl OS L .r C•Il--�— ` .. :;r ..'� Y '•'a+,,rf�,l r 1, Ag I l f. FN 1 r e II 1 I �� I_ r .• t 'p d'. r 1 }. + ro. Sm InC�_I��• I HI� I 1 n ��J .�,-, }Fll 't+ -� N y r A 4 S �r. L.1\, KG9A I �' ASC /r` 4.t EVC • �Pt I f:.. R �� yS 1 RrR h ;'. , '._, •'� ,,',1Mi; 5 r. `; .,�;.;, \! t ter +.t 7 I... _ '.t •-'_1 ''I rr -,:,. ` AgC`f __—`r ,.rIy 1 e'Yf.. +' +.. 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Aac , .- AkF 3 F U ,,.,ar \� n, rt, Ur \ \, w°• I,I IAr;C` u,,Ilt r I AI*F t I "Ic Park, Ncz I 1; 515 •.♦ ` '7gUE \ r °`• Iy a µt G!'x 7t.,Y ', !r� ..I.!... .�,a. , I iifl` r.c •.1 ` ~ 1 M )IF8 %, ' SOILS MAP w.Jr f�Ji ASD Permeability is moderately rapid in the surface Arents, Alderwood Material layer and subsoil and very slow in the substratum. Roots penetrate easily to the consolidated substra- tum where they tend to mat on the surface. Some Arents, Alderwood material consists of Alderwood :1 roots enter the substratum through cracks. Water soils that have been so disturbed through urban- moves on top of the substratum in winter. Available ization that they no longer can be classified with water capacity is low. Runoff is slow to medium, the Alderwood series, These soils, however, have t and the hazard of erosion is moderate. many similar features. The upper part of the soil, This soil is used for timber, pasture, berries, to a depth of 20 to 40 inches, is brown to dark- and row crops, and for urban development. Capability brown gravelly sandy loam. Below this is a grayish unit IVe-2; woodland group 3dl. brown, consolidated and impervious substratum. Alderwood gravelly sandy loam, 0 to 6 percent Slopes generally range from 0 to 15 percent. slopes (AgB) .--This soil is nearly level and These soils are used for urban development. undulating. It is similar to Alderwood gravelly sandy loam, 6 to 15 percent slopes, but in places its surface layer is 2 to 3 inches thicker. Areas Vents, Alderwood material 0 to 6 percent slope `•! are irregular in shape and range from 10 acres to (AmB) •--In many areas this soil is level, as a slightly more than 600 acres in size. result of shaping during construction for urban i Some areas are as much as 15 percent included facilities. Areas are rectangular in shape and Norma, Bellingham, Tukwila, and Shalcar soils, all range from 5 acres to about 400 acres in size. of which are poorly drained; and some areas in the Representative profile of Arents, Alderwood "9 vicinity of Enumclaw are as much as 10 percent material, 0 to 6 percent slopes, in an urban area, Buckley soils. 1,300 feet west and 350 feet south of the northeast it Runoff is slow, and the erosion hazard is corner of sec. 23, T. 25 N., R. 5 E. : o1 slight. t This Alderwood soil is used for timber, pasture, 0 to 26 inches, dark-brown (10YR 4/3) gravelly berries, and row crops, and for urban development. sandy loam, pale brown (10YR 6/3) dry; Capability unit IVe-2; woodland group 3d2. massive; slightly hard, very friable, non- sticky, nonplastic; many roots; medium acid; Alderwood gravelly sandy loam, 15 to 30 percent abrupt, smooth boundary. 23 to 29 inches slopes (AgD) .--Depth to the substratum in this soil thick. varies within short distances, but is commonly 26 to 60 inches, grayish-brown (2.5Y 5/2) weakly on about 40 inches. Areas are elongated and range consolidated to strongly consolidated glacial Th. from 7 to about 250 acres in size. till, light brownish gray (2.5Y 6/2) dry; wH Soils included with this soil in mapping make common, medium, prominent mottles of yellowish i: up no more than 30 percent of the total acreage. brown (10YR 5/6) moist; massive; no roots; Some areas are up to 25 percent Everett soils that medium acid. Many feet thick. ou' have slopes of 15 to 30 percent, and some areas are ma' up to 2 percent Bellingham, Norma, and Seattle soils, The upper, very friable part of the soil extends so,) which are in depressions. Some areas, especially to a depth of 20 to 40 inches and ranges from dark is' ,'! on Squak Mountain, in Newcastle Hills, and north of grayish brown to dark yellowish brown. Tiger Mountain, are 25 percent Beausite and Ovall Some areas are u to 30 percent included soils Par , soils. Beausite soils are underlain by sandstone, that are similar top this soil material, but either and Ovall soils by andesite. shallower or deeper over the compact substratum; Runoff is medium, and the erosion hazard is and some areas are 5 to 10 percent very gravelly Fi;; severe. The slippage potential is moderate. Everett soils and- sandy Indianola soils. This Alderwood soil is used mostly for timber. This Arents, Alderwood soil is moderately well Some areas on the lower parts of slopes are used drained. Permeability in the upper, disturbed soil for pasture. Capability unit VIe-2; woodland group material is moderately rapid to moderately slow, Ki 3dl. depending on its compaction during construction. an The substratum is very slowly permeable. Roots of Alderwood and Kitsap soils, very steep (AkF) .-- de penetrate to and tend to mat on the surface of the . This mapping unit is about 50 percent Alderwood fd gravelly sandy loam and 25 percent Kitsap silt consolidated substratum. Some roots enter the loam. Slopes are 25 to 70 percent. Distribution substratum through cracks. Water moves on top of su of the soils varies greatly within short distances, the substratum in winter. Available water capacity na About 15 percent of some mapped areas is an is low. Runoff is slow, and the erosion hazard is included, unnamed very deep, slight. sd nc moderately coarse This i cc textured soil; and about p,t 10 percent of some areas s so s used for urban development. Ca- Sc is a very deep, coarse-textured Indianola soil• pability unit IVe-2; woodland group 3d2. Drainage and permeability- vary. Runoff is rapid to very rapid, and the erosion hazard is severe Arents, Alderwood material, 6 to 15 percent very severe. The slippage potential is severe. slopes (AmC) ,--This soil has convex slopes. Areas These soils are used for timber. Capability are rectangular in shape and range from 10 acres to unit VIIe-1; woodland group 2dl. about 450 acres in size. 10 y Z7 Some areas are up to 30 percent included soils to dark yellowish-brown gravelly sandy loam that that are similar to this soil material, but either extends to a depth of about 19 inches. The lower shallower or deeper over the compact substratum; part of the subsoil is olive-brown very gravelly and some areas are 5 to 10 percent very gravelly sandy loam. Fractured sandstone is at a depth of Everett soils and sandy Indianola soils. about 38 inches. Runoff is medium, and the erosion hazard is Beausite soils are used for timber and pasture. moderate to severe. Some areas have been used for urban development. This soil is used for urban development. Ca- pability unit IVe-2; woodland group 3d2. Beausite gravelly sandy loam, 6 to 15 percent Arents, Everett material (An) .--This is a level slopes (BeC) .--Areas of this soil are 20 acres or to gently sloping, dark-brown gravelly or very more in size. Slopes are long and convex. gravelly sandy loam. It is very similar to Everett Representative profile of Beausite gravelly gravelly sandy loam (see Everett series) , but it sandy loam, 6 to 15 percent slopes, in woodland, has been disturbed and altered through urban de- 570 feet south and 800 feet east of the northwest velopment. Multicolored very gravelly coarse sand corner of sec. 29, T. 24 N., R. 6 E.: is at a depth of 8 to 40 inches. Areas are common- ly rectangular in shape, and range from 1 to 120 01--2 inches to 1/2 inch, undecomposed leaf litter. acres in size. 02--1/2 inch to 0, black (10YR 2/1) decomposed Representative profile of Arents, Everett mate- leaf litter. rial, in a homesite, 440 feet west and 100 feet Al--0 to 6 inches, dark-brown (10YR 3/3) gravelly north of the center of sec. 11, T. 24 N., R. 6 E.: sandy loam, brown (10YR 5/3) dry; weak, fine, granular structure; soft, very friable, 0 to 8 inches, dark-brown (7.5YR 3/4) gravelly nonsticky, nonplastic; many roots; slightly sandy loam, brown (7.5YR 5/4) dry; massive; acid; clear, wavy boundary. 5 to 7 inches soft, very friable, nonsticky, nonplastic; thick. few roots; 30 percent gravel content; B21--6 to 19 inches, dark yellowish-brown (lOYR 4/4) slightly acid; clear, smooth boundary. 8 to gravelly sandy loam, light yellowish brown 14 inches thick. (IOYR 5/4) dry; massive; soft, very friable, 8 to 60 inches, grayish-brown and light olive-brown nonsticky, nonplastic; many roots; slightly (2.5Y 5/2 and 5/4) very gravelly coarse acid; clear, irregular boundary. 10 to 15 sand, light gray and light yellowish brown inches thick. (2.5Y 7/2 and 6/4) dry; single grain; loose, B22--19 to 38 inches, olive-brown (2.5Y 4/4) very nonsticky, nonplastic; few roots; 55 percent gravelly sandy loam, light yellowish brown gravel and 10 percent cobblestone content; (2.5Y 6/4) dry; massive; soft, very friable, medium acid. nonsticky, nonplastic; common roots; medium acid; abrupt, irregular boundary. The upper part of the soil ranges from dark IIR--38 inches, fractured sandstone; medium acid. brown to olive brown and from gravelly sandy loam to very gravelly loamy sand. The substratum ranges from black to olive brown. The A horizon ranges from very dark grayish This soil is somewhat excessively drained. The brown to very dark brown and dark brown. The B effective rooting depth is 60 inches or more. horizon ranges from dark grayish brown to dark Permeability is rapid, and available water capacity yellowish brown and olive brown. It is gravelly is low. Runoff is slow, and the erosion hazard and very gravelly sandy loam and gravelly loam. is slight. Depth to sandstone ranges from 20 to 40 inches. This soil is used for urban development. Ca- Some areas are up to 20 percent included Alder- pability unit IVs-1; woodland group 3f3. wood soils, which have a consolidated substratum, and Ovall soils, which are underlain by andesite; some are up to 5 percent the wet Norma and Seattle Beausite Series soils; some are up to 5 percent Beausite soils that have a gravelly loam surface layer and subsoil; and The Beausite series is made up of well-drained some are up to 10 percent soils that are similar to soils that are underlain by sandstone at a depth Beausite soils, but are more than 40 inches deep of 20 to 40 inches. These soils formed in glacial over sandstone. deposits. They are rolling to very steep. Slopes Roots penetrate easily to bedrock and enter a are 6 to 75 percent. The vegetation is alder, fir, few cracks in the bedrock. Permeability is cedar, and associated brush and shrubs. The annual moderately rapid. Available water capacity is low. precipitation is 40 to 60 inches, and the mean Runoff is medium, and the hazard of erosion is annual temperature is about 50° F. The frost-free moderate. season ranges from 160 to 190 days. Elevation is This soil is used for timber and pasture and for 600 to 2,000 feet. urban development. Capability unit IVe-2; woodland .In a representative profile, the surface layer group 3d2. and the upper part of the subsoil are dark-brown 11 2� i If drained, this soil is used for _ow crops. It Ap2--3 to 8 inches, grw is also used for pasture. Capability unit IIw-3; light brownish gr+ no woodland classification. fine, prominent, and 3/4) mottles mottles of strong Urban Land dish yellow (7.5Y: and very fine, an; Urban land (Ur) is soil that has been modified by friable, sticky, disturbance of the natural layers with additions of medium acid; abru] fill material several feet thick to accommodate large inches thick. industrial and housing installations. In the Green B21g--8 to 38 inches, g: River Valley the fill ranges from about 3 to more gray (5Y 6/1) dry than 12 feet in thickness, and from gravelly sandy brown (7.5YR 4/4) loam to gravelly loam in texture. nent mottles of b: The erosion hazard is slight to moderate. No 2S percent of mat: capability or woodland classification. brown (10YR 2/2) (10YR 3/4) peaty i } massive; hard, fi: Woodinville Series roots; medium acii 30 to 40 inches t} The Woodinville series is made up of nearly level B22g--38 to 60 inches, 1 and gently undulating, poorly drained soils that loam, gray (5Y 6/: formed under grass and sedges, in alluvium, on. stream mottles of browni: bottoms. Slopes are 0 to 2 percent. The annual massive; hard, vei precipitation ranges from 35 to 55 inches, and the slightly plastic; mean annual air tempetature is about 500 F. The frost-free season is about 190 days. Elevation The A horizon ranges ranges from about sea level to about 85 feet. gray and from silt loam In a representative profile, gray silt loam, horizon ranges from grad silty clay loam, and layers of peaty muck extend to gray and greenish gray < a depth of about 38 inches. This is underlain by silt loam. In places tt greenish-gray silt loam that extends to a depth of fine sandy loam and loan 60 inches and more. are common in the B hori Woodinville soils are used for row crops, pasture, and their combined thick and urban development. and 40 inches, does not Soils included with t Woodinville silt loam (Wo) .--This soil is in elon- no more than 25 percent gated and blocky shaped areas that range from 5 to areas are up to 15 percc nearly 300 acres in size. It is nearly level and to 10 percent Snohomish gently undulating. Slopes are less than 2 percent. to 10 percent Oridia, Bi Representative profile of Woodinville silt loam, and Nooksack soils. in pasture, 1,700 feet south and 400 feet west of Permeability is model the north quarter corner of sec. 6, T. 25 N., R. 7 sonal high water table a E. : drained areas, the effec inches or more. In undz Apl--O to 3 inches, gray (5Y 5/1) silt loam, grayish is restricted. The avai t brown (10YR 5/2) dry; common, fine, prominent, high. Runoff is slow, a ' dark reddish-brown (5YR 3/4) and reddish-brown slight. Stream overflow (5YR 5/4) mottles; moderate, medium, crumb flood protection is prov structure; hard, friable, sticky, plastic; This soil is used for ' many fine roots; medium acid; clear, smooth urban development. Capa boundary. 2 to 4 inches thick. group M. as Z°1 y X. BOND QUANTITIES WORK SHEET J- King County Building and Land Development Division BOND QUANTITIES WORKSHEET COMMERCIAL/MULTIFAMILY GROUP Page 1 of 2 i ~- D ate: r_� IO Cl j BALD Project No.: Project Name: i Site Address: i i Fill in those items which pertain to this project and return to the Commercial/Multifamily Group - Site Development Review Unit. PUBLIC ROADWAY IMPROVEMENTS I PRIVATE ON-SITE IMPROVEMENTS Unit Price Unit Quantity Price Quantity Price A.C.Pavement . . . . . . . . . . $ 8.00 SY $ $ Cement Conc. Curb & Gutter . . . 9.00 LF $ $ Extruded Asphalt Curb . . . . . 2.50 LF $ I�00 (.../_ $ QdbGf/, `G Concrete Sidewalk . . . . . . . 9.00 LF $ - $ 6" pipe . . . . . . . 7.50 LF $ - $ 8" pipe . . . . . . . . . . . . 10.00 LF $ - 17(j Lf_ $ I2oG, °b 121, pipe . . . . . . . . . . . . 15.00 LF $ 50 L/' $ 7 a` 151, pipe . . . . . . . . . . . . 16.00 LF $ $ 181, pipe . . . . . . . . . . . . 20.00 LF $ I g 241, pipe . . . . . . . . . . . . 26.00 LF $ I $ 361, pipe . . . . . . . . . . . . 30.00 LF $ $ 481, pipe . . . . . . . . . . . . 50.00 LF $ $ - 601, pipe . . . . . . . . . . . . 65.00 LF $ $ 721, pipe . . . . . . . . . . . . 80.00 LF $ $ Curb Inlet . . . . . . . . . . . 500.00 EA. $ $ CB TYPE I $ I-L . . . . . . . . 750.00 EA. $ I $ CB TYPE II - 481, . . . . . . . . 1400.00 EA. $ I $ CB TYPE II - 54" . . . . . . . . 2100.00 EA. $ I $ CS TYPE II - 721, . . . . . . . . 3400.00 EA. $ $ CB TYPE II - 961, . . . . . . . . 4000.00 EA. $ I $ Restrictor/Separator 12" . . . . 450.00 EA. $ $ Restrictor/Separator 15" . . . . 500.00 EA. $ I $ Restrictor/Separator 18" . . . . 600.00 EA. $ $ Restrictor/Separator 2411 . . . . 750.00 EA. $ I $ Fencing (around pond) . . . . . 10.00 LF $ $ R i prap . . . . . . . . . . . . . 30.00 CY I $ L Cy $ GG, Rockery, Gabion & ecology walL . 7.00 SF $ $ Concrete Retaining Wall . . . . 8.00 SF I $ $ Excavation for Pond . . . . . . 5.00 CY $ $ Infiltration Trench . . . . . . 15.00 LF $ $ Flow Spreader . . . . . . . . . 15.00 LF $ $ Trench Drain . . . . . . . . . . 15.00 LF $ $ Trash Rack . . . . . . . . 100.00 EA. $ / �. $ IGG. " Detention Pipe Riser . . . . . . 400.00 EA. $ $ f3i0 CGnyfy,yrlrr, >�_A,Ur,, [ L_[__ $ 94 L(= �- a $ 9 )Orr, //r2(_) O2 hIV1 50 A- $ 2 f->A- _ f SUBTOTAL $ SUBTOTAL $e7J3,41rJ. 1/90