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Home My WebLink AboutSWP272715 CITY OF RENTON DEVELOPMENT SERVICES DIVISION MEMORANDUM DATE: March 1, 2000 TO: Mike Dotson, Surfacewater Utilities FROM: Jessica Olson, Development Services Div. SUBJECT: Recorded Document Bill of Sale / Honey Creek Heights / C980034 / Project#2715 / Rec# 19991230000787 Enclosed please find a copy of the above referenced document, which has been recorded with King County. Thank you. Enc.: (1) Jo RecdoOW-Memo.doc\ BAIMA & HOLMBERG INC. swf- z� - Z� 15 DRAINAGE REPORT FOR HONEY CREEK HEIGHTS January 29, 1998 Baima & Holmberg, inc. Job No. 725-002 City of Renton No. LUA 97-036 S�UPE� WAS Z 77 11332 SSf�NAL � EXPIRES �( 3J �}r� Prepared for: Bob Colwell 2625 NE 271h St. Renton, WA 98056 100 FRONT STREET SOUTH ISSAQUAH • WASHINGTON • 98027-3817 (425) 392-0250 (425) 391-3055 = KENN CK AV NE m o ��y s�T� �` °�N_.__.'�__ _:_.._ y�o . iCOLN PL _�__.. — KE�NENiCK AV'NE---'--- rya ; w C� y W r _ _ _..__.�__ N ► 11oTH AV s L.INCOLN LINCOLN AV NE rm ✓, ��,. �3'1 KE NEW K \ m ; r ,,tia, \\a 8400 J PL NE.: z 0 �, NE;.; vi A x z ,;\ u ,\�a4 t,q MONTE EY �.. N ,,, M NTEREY �; \\�;,,�\,4;; m �y O 0 1400 NTEREY 'NE CT.NE �t �I ABERDEEN AV: oo — Nr ,M b p„a c 200 2000 `,4)s �' o \ r SL1A AV NE ABEROEE 4 � \ N w a INE a ,�\r„ �xaY ;ek\, �a i m AMAS AV NE LPL E NE: r-z N = \\ c� a N O m A NE: i �-i AV , ,j r" cn N o ` N CAMAS `AV w AYTON'AV iAYTON -� V w� m r z x N o rn :: m \ r3;,\ H168 116TH - EDMON m m m AV m -+ rn 60 co 2000 z m . 2600 \��x ___. m— z o w FERNDALE 117T o kD oo = o , z W �._ AV E �` ` \' AV S z 118TH o (! ` aC, \�il\\l t1` —1 vN HARRI NGTON. . N t \�\r\,`�1\� \',`\\\��\ N A. `� �1 --1 1 9TN N `" �i - 3S Ln IN0 M::rz CIR m —1 /•-.-c \�\\� �\ \\ N'\ \ 11 PE 3S N� 3+n� . ► , "�.;: �� ~• RRINGTO SE �+ PL NE ,� \\\ 1\ \;\\\ ;a' \\ \\ \\� N v, JEFFER N a �NtLLCRIi ,� ` m a\N , v, LH ,NE JEFFERSON`AV NE rn KIRK oV .. E A. 41 �AV \J\\\� Si— AV 1 S rn MOXMIANAzam NROE E �'� +, ��\�� ,',,�a,,`\�,,, ��••, � H19Z I rn rrj AW V N .� d N 1 6TH \�\\i� \\\��.CN \ 14y�axa Sf r v,m m n ��„\\,\,\ \\a�\\�\+ S v� �\ \\�_ m. d Zk: o �� P SE _ u+\\mu\+,�da�\\ \\\\\\„rTlj �a\,a. \\\\\, r\ \+ ��, 0 3 = `o \;\\ 27TH PL SE PL>,,NE:. nd HL 27TN PL SE` ��\ ;�\ � \\\\\ \\ " \ , �\a OUEEN AV ,, 3S Ln —� c 1 NE w m .f:. \ r\�a`\a� \� � \; 3S Ad E — 128TH AV SE ,a,� _ o \�\a �`,• \ �\;\ AV ESE �� N 129TH Ays i x y \\\�\\�\\\�\\ \\�\�, .��,� 1291}{ �. AV. SE SHELTON AV NE g "'. w 1_ QTf AVcD z ;.m m.. _. ,.� �-{ '_.{� � ��r _ ��r x 7 ��ND --A�-- --SF-- . .�„ ..m.,,x.,,� BAIMA & HOLMBERG INC. DOWNSTREAM LEVEL 1 DRAINAGE ANALYSIS FOR HONEY CREEK HEIGHTS January 29, 1998 Baima&Holmberg, inc. Job No. 725-002 City of Renton No. LUA 97-036 Prepared for: Bob Colwell 2625 NE 27, St. Renton, WA 98056 100 FRONT STREET SOUTH • ISSAQUAH • WASHINGTON • 98027-3817 • (425) 392-0250 (425)391-3055 PROJECT OVERVIEW This project involves subdividing a 2.84 acre parcel into 19 single-family residential lots. The site is located at the east end of NE 25th Street, east of Edmonds Avenue NE in Renton, Washington. The site is relatively flat and slopes generally to the northwest. The site is open and undeveloped with a few scattered trees. Existing soil conditions consist of Indianola fine loamy sand. LEVEL 1 DRAINAGE ANALYSIS Indianola soils are class A soils. Due to the soil conditions and the flat topography, the runoff from the site infiltrates into the soil. The developed downstream site conditions consists of routing the on-site runoff through an on- site detention vault and bioswale that discharges into a proposed storm system flowing west along N.E. 25th Street. The runoff flows west in this proposed system for approximately 385' where it discharges into the existing City of Renton storm system. This system flows north approximately 500' along Edmonds Ave. N.E., where it discharges down a slope and eventually drains into May Creek further than a '/4 of a mile downstream. N � I I ► I I I I I I ► ( �cl �--� I I I I I I I i I - IsrsT�r� 1 � I �-------{----- I I ► I I � I 14 13 d i tl- 1 p 26TN T 1 F KL H Bt' ■79Y.., —"._ �� a. J i Ir—.---(�. 1Zj II-------------- 1 e>q I I I I , �rva�• , i•1 i� 2 � i �' � l rsau yt L I i------I-----I-----�- ......� __.... ._.�;.....,. � .,.�_`:� -�' '':` -�`•�,.,,., -tom 5432 SE 1/4 -1 are- .1 .-.....•:. ••.kt . 3F.. i2 p,Fe-• r. .................. . IX ............. 10-1 .. 1' ... . .17 N � s� 3F8 iB NE S •., :. 3FB-B : k ' .. N.....28th St ' • O ......................:..: ...: v: h St 7rr. ,.:...... 7 G2 3 w ...... S6 ; ..G2 1 JA .. ...........i... - ..... ......... Cl ... .. .. # :U .d ........ ...:........................ ..................:.... y:............:...... .-............... ................. ................. ...................... ... ..... $ 2S$ w. E2 t 1: : ff $ . Z : i7FJ tom' i _ i7F 3-* I r' z ... _. .. . p., :........; W �... ..:'-' , E ....'. .. a - �� 1 /vim�` 4; ! 7F3 6. :7F3-rl i' 3Z s .-..: m -. ... ........... ................ s 7.i3-n Gi 7 ....} i ............ : ... :. ........... ---•-_ cxG 7�B,r3-z � NE 25th...St `A -: 7 3- Y . 73'3:5 .. ...............: .......5 aj 7F3-13: m } Y T ..I C AA 1,, rc} ,..:.. .......:..:..... ...NE 24th St J�'��'f!r�,,, ....,...... 8,34-3 1.q9 F,:6 E. -Tt.11 a�.t :.: 7F, 1 .:. f A 7. k L,J i ...... -..Z ..G _.............. �,-9 a t NE 23rc! St dB '} ....... e.aa-z€# 1. ................. Q ..... P 7.Ha-S .. tQl1 t..... _t i :. 0 O: }........................ 5 :C_7 ...' : - $7.c,-b ca i 7G, 3 •H,-3 '" {$7. 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'�.. �.H AgC• ,, 12' STORM OUTFALL I TO NE 27TH ST. 25' 25' W I •... - IT I Z 5.15' EXIST. HOUSE iWP. > N 88'15'36' w 370.71' 200 W unuTY 1� I EASIMENT 4,14\1 19 ` —`-1 "L"�=1� 17 Ce 15 . W STA 1+ 1.3 14 13 '.LL C8/1, TYPE 1 n I C8/9 - (.. ._ RIM = l�'2S. i - STA 0+02 "1 yu- --•ST`i 0+05. 25L 'INV-321.5� RIM -.323.05 �RIN �.323.7 32'-12T x 'ltr,1' WV;320.16, INv-317:25'-..] n -1 iW 1 00 W ! N J2 •� . �. ol1.� ! - ' N. 25TH T i N.E. 25TH ST 00 ,. 32-12'..,0 0.50z �W'.._. _— � P♦ Mj2 Dc STA 0+02 I 160' 2' O 0.38x 12 RIM 323.05 '� C8/3 {/ I INV-320.00 j STA 1+61.31 f {•�; I RIM - 325.56 65'-12' f INV ,.317.5 INV-319.39 O 0.38% - 2 3 4 I , ROCKERY CB/5 MAX. HIECNT 8' STA 2+40 RIM - 326.19 / u CBJ7 11 W INV - 319.14 8 STA 3+16.24 %13o I §3'-72' O 0.38% 9 NV 322.0 I •r-S.Ia n I c STA 3+ J2'-•t2' O 9.69% .,,,/ RIM - 326.79 _ - - INV J18.90- 1 I 0N C� 0, 1I0-12 O 0.38 BIOSwALE 8 - 190 O 0.25% ,) J r. ZZ' f Z .. TRACT.'B%, N 88,15'15' w INV�'Sd.0 y N 88'15' S� w O �. 280.69' o o-- I �N 00'31'03' E I I co I CONTROL STRUCTURE INV-St8.45 \ 20.00' INSIDE VAULT, C8#8 or JOB / ,2-S — o o .2- BAIMA & HOLMBERG, INC. SHEET NO. / OF 100 Front Street South CALCULATED BY `/' DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE ... ..... y '' D ._13 = oaf ,1-1zf0. 13 �CJ�v / 3 7L - %6 2 3 �. PRODUCT 204-1(Single Sheets)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE c A/ -31 - ,�, Qom .- d. o�i PRODUCT 204-1(Single Sheets)205-1(Padded) ------------------------------------------------------------ - ******************** S .C.S . TYPE-IA DISTRIBUTION ******************** ********* 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP. ********* --------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 65 . 0 . 0 98 . 0 25 .3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 2 . 8 65 . 0 . 0 98 .0 25 . 3 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) . 04 23 . 83 1384 W ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 10-YEAR 24-HOUR STORM **** 2 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 65 . 0 . 0 98 . 0 25 .3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 2 . 8 65 . 0 . 0 98 . 0 25 .3 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) . 09 12 . 50 4729 a ----------------------------------------------------------- ----------- ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 65 . 0 . 0 98 . 0 25 . 3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 2 . 8 65 . 0 . 0 98 . 0 25 . 3 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) . 27 8 . 00 9944 tf(00 12* STORM OUTFALL TO NE 27TH ST. 25' 25' r Z 5.15' EXIST. I 1 I I HOUSE PLIES N 88�5'36' W 370.7V UTY EASNMENT ® sb- JJ! ° Q 5 I \\ 17 I pC ce 15 14 13 11-4-1 w ;% .. o ( , - STA 325.1 RIM 325.56 ? u- STA TYPE 1 n CT i /c INV=321.50 STA 0+02 0+05, 25'l RIM RIM 323.05 RIM,+.,,323.7 32'-12'0 6.5 x INV-m320.16 - INV-317.25' Jul - - -• - _ -i aw -1 00 Jl 1.00 N. . 25TH T N N.E. 25TH 8T �' 1 32-12' O 0.50% -�' P v[ C13STA20+02 160' 2" O 0.38% 12 rr i RIM 323.05 I ' C813 32 I NV= 0.00 STA 1+61.31 RIM - 325.56 65'-12- 1 I IN =,317.5 INV-319.39 O 0.38% ... ROCKERY I 3 CB dS 4 . I I MAX♦HIEGHT 8' STA 2+40 RIM = 326.19 8 CBH7 11 W INV = 319.14 STA 3+16.24 §3'-12- O 0.38% NV = 322.09 O PT 3+71 n \ o - 121 - STA 3+ 32'-12- O 9.69% RIM - 326.79 - v < INV - 31B.90' BIOSWALE 1 / ! 110'-12' O 0.38 O 1,90' o 0.25% . 8 I V 77 27 U k' 17' < <.Ozs. TRACT.'Bj;�;4 N 88.1V15' W _ 2 / INV�'38.0 N 88'15' S' W 280.69' 1 � ° o� N 00.31'03* E CONTROL STRUCTURE INv=3t8.a5 • 20.00' INSIDE VAULT, C8#8 v, JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE . ............. G �_.1 .... _ ...2 . {. .. .... .... _. PP✓///dS /4 z� lawh� c_ Pft000CT 204-1(Single Sheets)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE Al PRODUCT 204-1(Single Sheets)205-1(Padded) ******************x* S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP. ********* ------------------------------------------------------------ ---------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 .3 68 . 0 1 . 6 98 . 0 5 .0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 1 .3 68 . 0 1 . 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) � _9 7 . 67 10944 ---------?2------------------------------------------------------------- ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 10-YEAR 24-HOUR STORM **** 2 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 .3 68 . 0 1 . 6 98 .0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 1 . 3 68 . 0 1. 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 1 .23 17766 �!o ---------------------------------------------------------------------- ******************** S .C.S . TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 . 3 68 . 0 1 . 6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 1 . 3 68 . 0 1 . 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 1` ',�.. 84 7 . 67 26021 ob JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE Z)-ele, /ae.-0—. lr vr3 p-Ile, .wct C/,e a� G l(rJcvo!f� =_. Q 02�'', GAS Srer� ... . Gr>, U.L� mil/ a/ _5 f .. �a� G� olca/...... ...................... _ P .............................. 9 " l s '' iP� TO 41 PRODUCT 204-1(Siegle Sheets)205-1(Padded) PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 1.84 .27 f//,#C._ .27 4.50 15231 TEST HYD 1: 1.23 09 .09 4.22 14280 TEST HYD 2: .79 .�2 .02 2.96 10000 SPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP ENLARGEMENT OPTION: ALLOWS FOR INCREASING STORAGE AT A SPECIFIED STAGE HEIGHT, TO PROVIDE A FACTOR OF SAFETY. ENTER: STORAGE-INCREASE($), STAGE-HEIGHT(ft) PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 1.84 .27 .22 4.43 17973 TEST HYD 1: 1.23 .09 .08 3.79 15370 TEST HYD 2: .79 .02 .01 2.49 10090 SPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 1.84 .27 .22 4.43 17973 TEST HYD 1: 1.23 .09 .08 3.79 15370 TEST HYD 2: .79 .02 .01 2.49 10090 STRUCTURE DATA: R/D-VAULT RISER-HEAD VAULT-BOTTOM-AREA STOR-DEPTH STORAGE-VOLUME 4.50 FT 4058.2 SQ-FT 4.50 FT 18262�CU-FFT^ TRIPLE ORIFICE RESTRICTOR: DIA(INCHES) HT(FEET) Q-MAX(CFS) BOTTOM ORIFICE: .59 .00 .020 MIDDLE ORIFICE: 1.55 3.00 .080 TOP ORIFICE: 3.54 4.25 .170 ROUTING DATA: STAGE(FT) DISCHARGE(CFS) STORAGE(CU-FT) PERM-AREA(SQ-FT) .00 .00 .0 .0 .45 .01 1826.2 .0 .90 .01 3652.4 .0 1.35 .01 5478.6 .0 1.80 .01 7304.8 .0 2.25 .01 9131.0 .0 2.70 .02 10957.2 .0 3.00 .02 12174.7 .0 3.15 .04 12783.4 .0 3.60 .07 14609.6 .0 4.05 .09 16435.8 .0 4.25 .09 17247.4 .0 4.50 .27 18262.0 .0 JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE ... 4 �-=H = O....... /-/.._..... . G ... i2 ...... .. 2..<..... ..... ... � . . 3 5 PRODUCT 204-1(Single Sheets)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE Cj ............. /.P ,�<. /ya ......... /0.o /Puy- C 'a c... D o 7 av 7 CJ r ,3 ; 3 PRODUCT 204-1(Single SWs)205-1(Padded) lraoezozoal Channe � Anaiyszs � Oes�gn Ooer' �nannei - uni {orm f ' uw �,zr�sheez Name : 7�5-O0� ��mmeni : BIO.... WALE �ESl6N �olve For Bottom Width � � ven lnou` Da�a : Left 5ide Slooe . . 3 .00 : 1 Rzght Szde �looe . 3 .�0 : 1 Mannzng 's n . , . . . . 0 .350 Cr'annel Siooe . . . . 0 .0�0� ft/ft Depth . . . . . . . . . . . . 0 .33 ft [omouted Resuits : Worksneet dues not have calculated results . . . ' Ouen [hanne L Flow Module , Verszon � .01 (c ) 1 �9J Haestad Metho�s , lnc . * 37 Brookside Rd * WaLerbury . Ct 0�7�8 ' -rauezo� d.� i �hanne / �.�al ,s zs � �eszgn �urksneer N�me : 7�5-0�2 [omment : BlO5W�� [�PAClT� ��ECK ocn ^, For beoth M ,en inom Data ;. 8ottom Widih . . . . . 0 .50 K. Left 5zde Siope . . S .00 : 1 (H :V) Right 5zoe Mope , 3 .00 : 1 (H :V) Manning 's n . . . . . . 0 .�E7 Channel Mom . . . . 0 .0025 it /it Lzscharge . . . . . . . . 0 .27 cfs Comouied Results : �� -�«�m�~~~ °o Fiow Area . . . . . . . . 0 .34 sf �low Too Width . . . 2 .07 ft Wetted Perimeter . 2 . 10 ft Critical Depth . . . 0 . 15 it Critical Mooe . . . 0 .0E ft/ft Froude Number . . . . 0 .35 ( flow is Subcrztzcal ) Oueo [hannel Fiow Moduis . jerElon E .61 kc> 1096 Haestad Methods , 1nc . ^ 37 6rookside Rd 0 Waterzurv ~ Cc 0670� JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE Qom - � 79c�� vrac_ C /cam ....... ......... . PRODUCT 204-1(Single Sheets)205 1(PaMe0) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE mod. DZ S'�fe PRODUCT 204-1(Single Shms(205-1(Padded) ,2 Iy ._ S.� � Czrcular Cnannei Analysis � Des �gr Toned wich Mannzng 's Eq./ation Men Channel - Uniform fiow worksheet Name : 725-00E Comment : CAPACITY ANALYSIS Solve For Full Flow [aoaciwv Gzven Input Data : Diameter . . . , . . . . . . 1 .00 ft Slooe . . . . . . . . . . . . . 6 .00% ft /fi Mannzng 's n . . . . . . . 0 .012 Discharge . . . . . . . . . E .3O cfs computed Results : Full Fiow Capacity . . ' ' . � .wT� cfs ~�� wa,, Full Flow Dept� . . . . . . . . 1 .00 ft Velocity . . . . . . . . . . 3 .03 fps Flow Area , . . , . . . . . 0 .79 OF, Critical Deoth . . . . 0 .66 ft Percent Full . . . . . . 100 .00 % Full Capacitv. . . . . 2 .38 cfs QMAX @ .94D . . . . . . . . 2 .56 cfs Froude Number . . . . . FULL Open Channel Flow Module , version 2 .01 /c / 1990 Haeszad Methods , inc , * 31 Brookside Rg * Waierbur, , Q 06708 JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE fyNG ` N,F, =% S.ZT . . = .2. -Y._.14 C =� dv....= .......... ... T /u•s f cr s-c w. f ..... — C � .. ! / i . . .....__.... . G. 8 7 t'Pw•d.-s'.Aires __.= 1, ,2 GN 6 / w� e.. . 6g G � 9 `.. Cam• !/��,, _..... C ...��...'�"e /.�^� G'� J ;... => TUB j__.y/ow = O,�?f._2. =J2 '�/3 7 is N3 _ /� 7 sr LS�e _�� e / ,}_.. .. 7 2. -1/.3 -j =7 Ne PRODUCT 204-1(Single Sheets)205-1(Padded) I. o, • �•t 3p4 , - ��R 0 3 Z �\ 0 Sip c W S.E 97TH sT-. .. �o < aAss aL al M 30 ! °' I 0 s,� n `q'iS Ltj 1 � Lam, SJ� 8400'='"Y .V _ - •►. 9Y9S. C CD 11'• - - 100.6 - g0 0. t rav'rAky OqO►t O �R pllp qp E >r `qoo ' i qO 0 e sA1a•/a 4z" �j1 l ,39 PO .Iv z /00 ,41 0 a 80.03 h o Q i s Dk* 00� o h '�e1,7- 012 — n �7� n N8i•is Is•w13 `� �• `�QoO 8 ^ h /, ' 0130, 1 t9 o a Q �r07p 0 lb ��4 z 2 9So2 � 'tor• v , 1 O /co Nib•/s/_r'•ty (� I v 0 6 � � 170.7 28 /o r� 0060 0 z 95. 4 3 t` Li. NB8•/S'/S 1y 70. 7/ as 7S.00 .>r i u _ S�r� :�i o III.E:. 5- sT.-75f�1.0 C�HrAAY . `l go 00 7930 0 - e*� �G2.00 02.00 GZg9. � - C a^�y0olp O qp 4:• Bob 8 /-r 45 .77,0 So `62.40Lb �o 0 7,v7/ 1296.35 w - W Z GQ O/ 10 %i Iw 94.6 V y -,�0:` C �ot� 0 092° - oo ® 040 �y° 0 qp0&0 0070 a 09 � •1: t I ii - � .t�l �90 i N ,, s e /ooTH s CONTR I a Th" AAa #4 18.. :4 17 p1 _-.,_ A/6 .2-S 4.3 sT 6I�Phc-7I-/ �4NA,4-ys_F-.s ---------------------------------------------------------------------- ******************** S.C.S. TYPE-1A DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3.90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2.6 68.0 1.6 98.0 5.0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 4.2 2.6 68.0 1.6 98.0 5. 0 PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT) 2.16 7. 67 32293 `f/dp N C. 2,57 ti *5 7; �� - � 4 [zrcuLar Cnannel Analvszs & Deszgr Toiveo with Manning *s Eouaiion On an Channel - Uniform fLo� Worksheet Name : 725-002 Commentt CAPA[ITT ANALYSiS SoLve For Full Flow [apaczty Gzven lnouL Data : Giameter . . . . . . . . . . 1 .00 ft Slope . . . . . . . . . . . . . 0 .0118 ft/ ft Mann zng 's n . . . . . . . 0 .012 Discharge . . . . . . . . . 4 . 19 cfs Computed Resuits : Full Flow CaPacity cfs ��' ^ ^ ^ ^ ^ ~n �~pJ� Full Flow Deoth . . . . . . . . 1 .00 ft Velocity . . . . . . . . . . 5 .34 fps Flow Area . . . . . . . . . 0 .79 sf Crztical Depth . . . . 0 .86 ft Percent Full . . . . . . 100 .00 % Full Capacity . . . . . 4 . 10 cfs QMAX @ .94D . . . . . . . . 4 .51 cfs Froude Number . . . . . FULL Upen [hannei Flow Module, Version 2 .Oz (c> 1990 haestad MetMoos . Inc . * 11 GrooKszoe Rd * WaterMry ` Ct �67u6 - I I 9 PAGE 0030OF0 7 002 CITY OF RENTON BS KINGOCOUNTY, Wp4 9.00 Return Address: City Clerk's Office City of Renton 1055 S Grady Way Renton,WA 99055 BILL OF SALE Property TuParcel Number.042305-9151-02 ProjcctFile#: C980034 Street Interscction25&FERNDALE A'-drs2600 NE25TH ST Reference Number(s)of Documents assigned or released:Additional reference numbcrs are on page Grantor(s): Grantee(s): 1. City of Renton, a 1, LONDO—TIBERIO CONSTRUCTION INC. Municipal Corporation 2. sells and delivers to 0o The Grantor,as named above,for,and in consideration of mutual benefits,hereby gran ,bargains, cl— the Grantee,as named above,the following described personal property. c e o WATER SYSTEM: 1— th "L.F.of D.I. Water Main o. __��.__— o L.F.of " Water Main L.F.of Water Main N3 each of 8 Gate Valves 2 each of 6 Gate Valves 6, 2 each of Fire Hydrant Assemblies rn 6' SANITARY SEWER SYSTEM: Len Si7C 555 L.F.of 8 PVC Sewer Main 273 L.F.of 8 C-900 Sewer Main 574 L.F.of 6 " ^ PVC Sewer Main 5 each of 48 Diameter Manholes each of Diameter Manholes each of Diameter Manholes STORM DRAINAGE SYSTEM: Len th sizc lyp—e 577 L.F.of _" PVC'. Storm Line 900 L.F.of 6 pVC Storm Line 385 L.F.of 12 " PVC Storm Line each of " Storm Inlet/Outlet 7 each of " TYPF 1 Storm Catch Basin each of 4£� " TYPE 2 Manhole STREET IMPROVEMENTS: (Including Curb,Gutter,Sidewalk,Asphalt Pavement) Curb,Gutter,Sidewalk_94 I.F. SY or 440 L.F.of 32' Width Asphalt Pavement: STREET LIGHTING: #of Poles 5 By this conveyance,Grantor will warrant and defend the sale hereby ag made unto the Grantee ainst all and ev ery Per-°n Or persons,whomsoever,lawfully claiming'or to claim the same. This conveyance shall bind the heirs,executors, administrators and assigns forever. pagc 1 H:�FII.E SYS�FR2�i`84H4DOt PSn LSAT E.DMh Return Address: City Clerk's Office City of Renton 200 Mill Avenue South Renton,WA 98055-2189 BILL OF SALE Property Tax Parcel Number.042305-91 51—02 project File#: C980034 Street intersection.-NE25&FERNDALE 600 NE25TH ST Reference Number(:)of Documents assigned or released:Additional reference numbers are on page Grantoe(s): Grantee(s): 1. LONDO—TIBERIO CONSTRUCTION INC. 1. City of Renton, a Municipal Corporation 2. is sells and delivers to The Grantor,as named above,for,and in consideration of mutual benefits,hereby gran ,bargains, the Grantee,as named above,the following described personal Property. WATER SYSTEM: size IYP—C L.F.of 46 1. Water Main _�" L.F.of " Water Main L.F.of Water Main 3 each of 8 Gate Valves 2 each of 6 Gate Valves 2 each of Fire Hydrant Assemblies SANITARY SEWER SYSTEM: Length Size IYP—C 555 L.F.of 8 " PVC Sewer Main 273 L.F.of 8 C-900 Sewer Main 574 L.F.of 6 PV Sewer Main 5 each of 48 " Diameter Manholes each of " Diameter Manholes each of Diameter Manholes STORM DRAINAGE SYSTEM: Length size hp—e 577 L.F.of _ 12 ` PVC'. Storm Line 900 L.F.of 6 " PVC Storm Line 385 L.F.of 12 " PVC Storm Line each of Storm Inlet/Outlet 7 each of TYPF 1 Storm Catch Basin each of 4Fi Type 2 Manhole STREET IMPROVEMENTS: (Including Curb,Gutter,Sidewalk,Asphalt Pavement) Curb,Gutter,Sidewalk 944 L.F. SY or 440 L.F.of 32' Width Asphalt Pavement: STREET LIGHTING: #of poles 5 — and every person By this conveyance,Grantor will warrant and defend the sale hereby made unto the Grantee against all or persons,whomsoever,lawfully claiming or to claim the same. This conveyance shall bind the heirs,executors, administrators and assigns forever. It-e page 1 H:TU.B.sYSTRMN84HNDOUIIBII LSALE.DOCNAB f .1 'Y A• CITY OF RENTON PLANNING, BUILDING/PUBLIC WORKS DEPARTMENT FINAL COST DATA AND INVENTORY NAME OF PROJECT WTR- W WP- HONEY CREEK SWP- TRO- TED- Per the request of the City of Renton, the following information is furnished concerning final costs for improvements installed and turned over to the City for the above referenced project. WATER SYSTEM CONSTRUCTION COSTS: Lenggth Size Type 460 L.F. of 8 DI WATERMAIN L.F. of WATERMAIN L.F. of WATERMAIN L.F. of WATEP—MAIN EACH of GATE VALVES — EACH of 8 GATE VALVES 2 EACH of 6 GATE VALVES 2 EACH of 6 FIRE HYDRANT ASSEMBLIES $ 13800.00 (Cost of Fire Hydrants must be listed separately) S 4200.00 (Include Engineering and Sales Tax if applicable $ 1548.00 TOTAL COST FOR WATER SYSTEM $ 19548.00 SANITARY SEWER SYSTEM: STO I DRAINAGE SYSTEM: Length Size Type Length . Size Type 555 L.F. of 8 PVC SEWER MAIN 577 L.F. of 12 PVC STORM LINE 273 L.F. of 8 " C-900 SEWER MAIN 900 L.F. of 6 PVC STORM LINE SEWER MAIN .385 L.F.of 1 2 PVC STORM LINE 574 L.F. of 6 " PVC STORM INLET/OUTLET 5 EA of 48 DIAMETER MANHOLES EA of STORM CATCHBASIN EA of DIAMETER MANHOLES 7 EA of 48 TYPE1 �_ EA of 48 R+ypR2 STORM CATCHBASIN (Including Engineering and Sales Tax $ 3481 .88 (Including Engineering and Sales Tax if applicable) s 4051 "55 TOTAL COST FOP.SANITARY SEWER SYSTEM $ 43968.88 if applicable) TOTAL COST FOR STORM DRAINAGE $ 51162.55 SYSTEM STREET IMPROVEMENTS: (Including Curb, Gutter,Sidewalk, Asphalt Pavement) Curb, Gutter, Sidewalk: 944 L.F. S ---- .asphalt Pavement: — SY or 440 L.F. of 32 Width $ 51147.00 SIGNALIZATION: (Including Eng. Design Costs, City Permit Fees,'WA St Sales Tax) NSA STREET LIGHTING: (Including•Eng. Design Costs, City Permit Fees, WA St Sales Tax) of Poles 5 S 24489.00 ROBERT P. LONDO 42 —451 082 Print signatory name day ph (SI ATURE) forms/COSTDA72.DOC/bh (Signatory must be authorized agent or owner of subject development) �1 iI —I 17 16 1 « o= ; p aW J i 15 14 13 rr I— iw Ytt. 11 1 1 e _ Aw,xe roxro1ix o,wN r�«vns ws:a«sm o.xo z - -------- _ r 0'i Z _f ,smxas wrw. rzc,..0 I IT 25TH ST F a ,- �z F 4 O 12 �1 ,.-nA, I I I ... •i— -.w''T�a:� k p:. _.«.«. ,m 6...w.n.. «. «.a«R.v„.xx,x.w�"x .E w•"A.0M.,. a 41 s l I ui I 10 >aw.rA— m 9 tl I I- LL Y NOTE: IY R ETHINFO-AT../A _ _ ACCWATELY REFLECTS MISTING °f FIELD CpNITI()f!5 AS OF TNIS OATS: «..iw•(fi-IG�N ..w �a u/uIM 7 I _ F t�` AL R-27IV07 ED FOR ORAvv APPROVAL NOw rn. "w.,... a�n-wa�«,�n�n3 snucm�o I wco/ro mK r�o s u.. 21 I ai w.¢ - I I \•� ..,w..=.�n m°'n:'.` A _ ww a...:wul . Call MUTE: 3 MI I II before you D;9 wA d Y TFO-4e-tf�t 1-800-4245555 ROLL161 064 0 LJ Gj uj uj .0 -j z T: LL. LLJ uj Z 00 ---------------------- --- ---------- --------------- N,..r 25 :mm a-_ t Z" 11t.I W—x as b e f o riFyaol I Dig. 1.800-424-5555 co:kl-171'.1 *24X ROLL 57 3 BAIMA & HOLMBERG INC. DRAINAGE REPORT FOR HONEY CREEK HEIGHTS January 29, 1998 Baima& Holmberg, inc. Job No. 725-002 City of Renton No. LUA 97-036 S L1PE�I WAS r 11332 ?FG1 V SSI0 AL G� EXPIRES Prepared for: Bob Colwell 2625 NE 27" St. Renton, WA 98056 100 FRONT STREET SOUTH ISSAQUAH • WASHINGTON • 98027-3817 (425) 392-0250 (425) 391-3055 :iw4 CD KENNCK AV NE m � ' ooPKE11 _�COLN PL _..__.. - ••NE------- -=- - 11oAv sLINCO LN��LINCOLN AVNE rm ti o m lIo % r ,�; A\\\\MONTE EY . A .. N m Y l \ m 840 y�o O` NE;1400 NTEREYNF _ QlCT NEN,\ABERDEEN AV. �+ \ — 200 NBERDEE 00 �' Iv z�" ` { \`?� "f C7 QLA AV m NE w g INE \ ,\,`\\.,•,,�\, o v �,', „„\,\ '" AMAS '"'.� AV NE �PL NE< r'z AV N \\ ; m m o m x " \ \;, 114 m zCD m. �,� A NE N CAMAS AV w z � AYTOINEAV pG :.HE AV iAYTON V cn DAYTON T z N r N n1 CA \; r H168 (/� ram- m Z t cn c m l 16TH - EDMON m m :m AV NE r sooa N 60 �r W-Vo�'b ,-• �. p 2000 z N z m .,2600 ___ ;�•\/- - �► m-�' 1� - x o ca FERNDALE Ln � ,\ 1 117T o o = o , S _ 118TH HARRINGTON . N 1�\\� o��\�` \�\\`\ N r yo`` -1 1 9TH �`" S vA�Avv V\ C SE,p\\ fn N x• ,\\\ \ , \\ �Dm m ' I ND ��. C I/j m -t -U "�\\\`\\\ \`�\\�\\\��\\\\\\\\\\11 PL 3S ry ri .. r- vv�vv \vA�\v�\�A��w SE It l `� HARRINGTO ;�,\\\ \ ,�`\\\+u\ \„ �O o �^+vv' � �' PL NE '�� "�'" v� '�a`A�v``'\'\`a\;�\ va\v�AA�\v4' JEFFER' N �� 2l��itiicr \ �;";;\;r?� :1+ \ \ \�\1 \� 0 12 N M \,\\ +\\\, +\\,\\\\\ V o .NE JEFFERSON' AV NE e`a+,a\•r�� ;\„ .KIRK o ;;,;AV . E : fr � � Ivy\�v,vvv�v+AvA� 121ST m. N t� ✓ y 'yQ \\\�\ �\\��\�\\\h 1? NO F'' p ZI 12 D AV \X� \��\`� P� S ,1J�\ SE r �Z vn AY MONROE E � m Cn \\�\\�\ Z V N ,m Nd N� ijN `"1 6TH �,;\ \\,\\ \\\\\a\\\, a\\ a\\\ P� g r-m rrl i \�a \\\\�\\\\\ ,�\ `\\�`\a\\,\�\p \\�,\\\ Sf �S `' r cn (Nn �S k' Im P SE N\�; ,��\\1, „\,\\\\ \\ \ \\ a.\\\�\iq�+� 12TH V S O �\\a\,\,\\t \\\�\\�\`C)`a \ co PIERCE:�" ocn o = \\\? \►� \\ i 21TH PL SE \y�\`\`\ \\ \+ 27TH PL SE J QUEEN AV �` `- --- 3S nV cn \?\\��\p��\�\,\`�\� ;\`` m NE w m �; �" n', \�\\\!�\��`\� ;\ \\ �, 3 �d N18zt L:, 0 128TH AV SE v, \ \\\\\\� \` \\\ �� S AV SE SE qy Ell m \�Q\ \\fit\ S 1291}{ \G M AV SHELTON AV NE "b S \°` NI / z F=, �� ' •a\y W4 \\ All 1 M D --A V--- —5 E--, u,a r 1�e 1 a ,a„•a BAIMA & HOLMBERG INC. DOWNSTREAM LEVEL I DRAINAGE ANALYSIS FOR HONEY CREEK HEIGHTS January 29, 1998 Baima & Holmberg, inc. Job No. 725-002 City of Renton No. LUA 97-036 Prepared for: Bob Colwell 2625 NE 27, St. Renton, WA 98056 100 FRONT STREET SOUTH ISSAQUAH • WASHINGTON • 98027-3817 • (425) 392-0250 (425) 391-3055 4 PROJECT OVERVIEW This project involves subdividing a 2.84 acre parcel into 19 single-family residential lots. The site is located at the east end of NE 25th Street, east of Edmonds Avenue NE in Renton, Washington. The site is relatively flat and slopes generally to the northwest. The site is open and undeveloped with a few scattered trees. Existing soil conditions consist of Indianola fine loamy sand. LEVEL 1 DRAINAGE ANALYSIS Indianola soils are class A soils. Due to the soil conditions and the flat topography, the runoff from the site infiltrates into the soil. The developed downstream site conditions consists of routing the on-site runoff through an on- site detention vault and bioswale that discharges into a proposed storm system flowing west along N.E. 25th Street. The runoff flows west in this proposed system for approximately 385' where it discharges into the existing City of Renton storm system. This 18" pipe system flows north approximately 500' along Edmonds Ave. N.E., to a catch basin located about 30' north of NE 27th. A 24" pipe exits this catch basin, outfalling cross-slope approximately 600' down a the steep slope above May Creek. This pipe dumps into what looks like a deep stilling basin at the toe of the steep slope, with a 24" pipe exiting at the bottom. This pipe discharges onto a concrete apron. There is substantial erosion immediately downstream of this apron. Flows go to May Creek though a deep, moderately eroded but stable, flat gradient channel. Other than erosion in the stilling basin area, The downstream drainageway from the site doesn't appear to have any serious problems. i! I I ► I I I I Iw ieI I ` i ` ————— nu I nva I nn•a I �`` I I ,awataa naruca I I JOA 5 n i to y� Sa �( / i E 370.50 n __ —— — — bTH T— t \ w e iase.ei.' t \_,Y�. v.:.' I lift ,x I -------------- cm I utoa nwca i � i J I I I rw.ua I ,A .:. 3 f .. I .. 1 I I I µru.na , , �� • .iau�a t I 5432 SE 1/4 .. .:.:..::.. . . -1 3f 8-3 1 ••'. .................... ._ ...................... 3, .? P,FS-4 E8-S,i ES ..s 40 .. Ve7'. :...... 3s'6 :3.Lfl-fa -� T� ci , l �v . �lsi,v� �l , .....: 7f2 ::.. rrt ••:..:... St k.:.,..�..., w 2 :27th..S#:.. s + t N cl LJ U.. . ............. ...... :. ... .: :..... ......... .... y E : Z : .. : ....... .. :: _� ` +v I v L7,F31 - �? ;7f3=1 .! Lai .. _. : , Ld • t r ...............: ,.F3-❑ ..... > { .1 ? 7f3. L��7f3-7'•:7F3-J .... ............� _ ._ ' ... .. .. ... .. _.. G.-7f3 .............. Gj .,o ¢ $ NE 24thSt a 97E4 6 �'. 4th .St t ... -...:...` 4 ...`..`..y. - 7F4 1 ;...7,E4-5 i 714-6 i i W 5 Y Z ' 4_ - Z ` : E 79. ...:......:.....:.. :..........'........... G4-9 : "tJ7.G4- 7G4 �, NE 23rd St s .. - Q ; 7H4G4-8 ,7H4 2 B94o ........... 7.Gs-6 .. _.. 5 ..,G4 7,64-a 2nd St ....... i. ... ..,.::.,,,,,:. NE 22nd St: _. ..., :...'...: ........ NE 2 . ... _ ..:............ .... 4 _. 7,,C4r4 }y,, 7,G4-10 1 : ( rIVQt2 I'�� 8a 6 �, _ t :. H$ NE _ 7.o5- ,......... t NE 2fs P. > ........ ........... ],GS C5 I] G5_ ..... :--...... ... .......... c_.. ... ..¢, .....:..................... i -..... ._. ........ is ? ;. 1 .......955 :7.G5- .... ... S 7H .........0 ..0.: .......... 7H5$ 4 ;7,H5 6 : ........... I A• }r,y�� (1 ... .. ::...:::NE 2Gth $ 7G5 9 7H5 77H5 8 7 -lp I,MSUt a9s 2 aas a _.._._ 7G5 8 ,. /�. •.-�—: .... ... .:. •:: ,.HS-z_ -...... s NE �20th .St r F5'6 7f5-8 t Z f Zi i } ............... i ... _. Z ........ '' _ ... _ ' ,7f5-1i-' . .. .. .... .. .A/..} ...�.• ; cu N 19th P1 ;. .E a: 7f5-5 .................. GJ i :.................. Es V. .:`.._ 8.961 NE 19th St ,.. Q < _ 5305 SE 1/4 /-D N 57~1k FA M l�R,41NA lq,4P f • ■ N •• No ■ 1 ■No I a No 11 � ■. O I O tom- /• I 1 / . �?30 I , 30 00 308X • �f ` t2 4G No a ■■ No � � ♦i t 1. f it a i k y • � I --, ..s: �f •, , � �� 'mil -� °I No `t w /L •1A v/ NO ru 1l__ n O .qgC j KPD U 4y C AkF �� • 2 10� $ BM s• I aK igh i I.' 854 8 KPB I �N I! :m8 gC it AkF c ' AgC AmC 1 •L■ AgC eigh R 1' �� fr w •O' SM i,• Pleasure B •! \� 8 (m BM 22 Point 21 / 4 F' I I' 5 :■� Hills M ? /I'• v I s 122 AgC. AmC azel J i Ir.c e 1 P \J\ S Ai FY �\ Bh 1 AkF A8C BM — KpIl 29 263 74 •AgC U / 42 — I BeC KPB t. ~ ( AgC c/ A D f 'Pine§ \ rlewpo B S. Ur EwC \• •� Hills ` ` BeC InA AgC -- - -U • •D n I A Ur n Evl3y �mC •KpDyu i BeC Ur •i 9M . ° r ISk p%T AgD;I-^ 3 01 BMPID EvC ;qgC Eh 58 AmC I eC • �• j e .• , Bh ..© I (�� `: } •\' AgC 1 ,�• ,'\ May a 1K;.0 = .EvC 109 • • � 1 .ems";• O OvD ! tS�•• .•\ ----, ------ --1`------ — — BMA &BM ■ � B i•.? AgD . . 690 t� 1 692 'AgC No ti ABC t� i BM i I. ✓ 605 n ` I • ••� 1 nO \ Sm \ v �• �— 1 � n BeC .xq C 71 .. 1, iAgC / B m 2 D , '�' AgD 1 �r I •i; 34 • Ag .•• � � (� qgD Ken_ydale 1 o B n •InC• AkF I •� 'Y 1 I` AkF A C EvB ��• AkF B I SeC. EvC aman Poin Q Py r ' AkF• _ .t / 'InA•.'• — 11-- ----- -- --r— — — — -- AgC — L s BC AgC) '~ m i •BM,30 � BMi11 AgC EvC� AgC �� - ti��d°.•fit' 1(�I 11 e'� R ' � 4 tr :fir z Am6( 1 •�1 r — ---- s Sm < r(l(rw�{ 4vrab iyf', ` 4• - -.InC' • If:'; ;. a+... ,Y,+�,• t �� y �"� ..�;'' w�:�. t I• pppfff I� > ql,;p lbs. ,= EvC' �.. II 12' STORM OUTFALL • ,,,- I TO NE 27TH ST. 25' 23' LLil -.. EXIST. HOUSE Lu v N 88'15'35' w 370.71* I a zo'\UnUTY !llvvv W EASkMENT ` .. • . _E22 x .._7$ 17 . ST 1+y�`1.VS3 I 15 14W 13 RIM -LL C811, TYPE I n CB19 STA 0+02 SI + INV'-321.S1 L MA �,323.7 32-12'0RIM 3.05 R i x '*1 INV�320.16. INV-317.25 -1 aWa 1 00 nD< 1.00 N. 25TH T 1 N.E. 25TH 8T __• - 32-•12'.O 0.50% _ pr STTA20+02 160' 2' O 0.38% 12 r' ' RIM 323.05 I '/ C813 I I` NV_;20.00 j \, STA 1+61.31 11'I`T k f INV �.317.5 RIM - 325.56 65 -12' 1 - ,2 INV-319.39 O 0.38% V ROCKERY I 3 CB15 4 MAX.HIEGHT 8' ; STA 2+40 ^ I RIM - 326.19 C617 11 INV - 319.14 j STA 3+16.24 i v o I 43'•-12- O 0.38% MV 322.09 F - yr-3.1d STA z ~ ,� RIM -�+326.79 _ _ 32'•-12' O 9.69% F . ,•,,, INV --318.90__-- 10 O BIOSwALE 110'-12* O 0.38 190' O 0.25% I 8 7 $� !� 322- 171" • z0 9 1 i - °° CT-,131":.4 N 8815'157 W. ss 90.0Y' � 1NV-�'38.0 N 8815' S' W 280.69'I N 00'31'03' E cO I CONTROL STRUCTURE INV-318.45 \ 20.00' INSIDE VAULT, CB18 vT JOB 7,2-- o o BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY ` ' DATE 7�2 ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE /V �31- - s-�G�ia d/_�c.. =� .,/�X ✓v/off..'Cio ri .2 : �. ... ' �liitiP14 ......... .......... .... ..... .... PRODUCT 204-1(Single SAeels)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE Co? c �� ............:fig .z..... . . _ CfS. ........ PRODUCT 204-1(Single Sheets(205-1(Padded) )19R F, ^444��F A/ T ---------------------------------------------------------------------- ******************** S .C.S . TYPE-lA DISTRIBUTION ******************** ********* 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 65 . 0 . 0 98 . 0 25 .3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 2 . 8 65 . 0 . 0 98 . 0 25 . 3 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) . 04 23 . 83 1384 ******************** S .C.S . TYPE-lA DISTRIBUTION ******************** ********* 10-YEAR 24-HOUR STORM **** 2 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- -ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 65 . 0 . 0 98 . 0 25 .3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 2 . 8 65 . 0 . 0 98 . 0 25 .3 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) . 09 12 . 50 4729 eve ---------------------------------------------------------------------- ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 65 . 0 . 0 98 . 0 25 . 3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 2 . 8 65 . 0 . 0 98 . 0 25 . 3 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) .27 8 . 00 9944 `f,000 12' STORM OUTFALL — TO NE 27TH ST. ._..•. 25' 25' � IT T; w i 615' EXIST. HOUSE PgES n I Lu N 8815'36" w 370.7V sb EASUM LITY 20 W EASl;MENT ❑V I \ Q 5' 17 ccCB 15 . (L ,. o I STA 1+61.31 14 13 RIM - 325.56 LL \\ CBy1, TYPE I n CB/9 INV=321.50 /S (� STA 0+02 1 �u-^— R 0+05, 25'L RIM 0 323.05 / I RIM <.323.7 32'-12'O 6.5 x INV-320.16 •- `17 � — I 1.00 N. . 25TH T p, N.E. 25TH 8T `� 1 I - , 32'-12' o osoz -�' P PE �A20+02 160' 2' O 0.38% 12 RIM - 323.05 I "� CB/3 MV=320.00 i STA 1+61.31 RIM 325.56 65'^�12"INV-',Z17.5 INV=319.39 O 0.387. -•- ROCKERY I 2 3 CBpS 4 . I I MAX. HIEGHT 8' _ RIM 2+40 326.19 V C6N7 11 W INV = 319.14 g STA 3+16.24 RIM §3'-•12' O 0.38x NV = 326.7 322.09 PT }'IQ n 6 o ue - STA 3+16.2 326.79 RIM -_ - 32'^•12' O 9.69% n _ Z 1 INV - 318.90 BIOSWALE 110'-12" O 0.38 190' O 0.25x $ 7 6 21 T3 c �l :°_ U ,�y o � s� W/ y� 111 c- 4.07.24 TRACT,'Bj;�',4 N88'15'15' w 90-02* Q z INV1'38.0 N 88'15' S" W Oo INV=318.45 N 020.00' E CONTROL STRUCTURE INSIDE VAULT, C8?8 of JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE 2 lv .... ... .... ..rl . ... ..... .. .... .. . 7d / G � j PRIDDUCT 204-1(Single Sheets)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE Al- ..G 6�` 9 ..... ..................... Q :_ 7y cis .. PRODUCT 204-1(Single Sheets)205-1(PaAAed) 1 )0 o S 7- S .C.S . TYPE-lA DISTRIBUTION ******************** ********* 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 . 3 68 . 0 1 . 6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 1 . 3 68 . 0 1 . 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) l79 7 . 67 10944 --------?�----------------------------------------------------------- ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 10-YEAR 24-HOUR STORM **** 2 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 .3 68 . 0 1 . 6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 1 .3 68 . 0 1 . 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 1 .23 7 . 67 17766 �!o ---------------------------------------------------------------------- ******************** S .C.S . TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 . 3 68 . 0 1 . 6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 1 . 3 68 . 0 1 . 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) 1 . 84 7 . 67 26021 'od JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE ,.elf axx yam `— fhi ve, tiayG...o ✓c o. 0 9 cis _. GAS ...... .......... gip, .� �; f v Tp 'i` '� /fir/ 7. . 4 4 � ( 5 L�U Z PRODUCT 204-1(Single Sheets)205-1(Padded) PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 1.84 .27 ,aWof11,o✓ .27 9.50 15231 TEST HYD 1: 1.23 09 09 4.22 14280 TEST HYD 2: .7912 O .02 2.96 10000 .'qtL jo/li►csA SPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP ENLARGEMENT OPTION: ALLOWS FOR INCREASING STORAGE AT A SPECIFIED STAGE HEIGHT, TO PROVIDE A FACTOR OF SAFETY. ENTER: STORAGE-INCREASE($), STAGE-HEIGHT(ft) PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 1.84 .27 .22 4.43 17973 TEST HYD 1: 1.23 .09 .08 3.79 15370 TEST HYD 2: .79 .02 .01 2.49 10090 SPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 1.84 .27 .22 4.43 17973 TEST HYD 1: 1.23 .09 .08 3.79 15370 TEST HYD 2: .79 .02 .01 2.49 10090 STRUCTURE DATA: R/D-VAULT RISER-HEAD VAULT-BOTTOM-AREA STOR-DEPTH STORAGE-VOLUME 4.50 FT 4058.2 SQ-FT 4.50 FT 1826�2 CU-FT TRIPLE ORIFICE RESTRICTOR: DIA(INCHES) HT(FEET) Q-MAX(CFS) BOTTOM ORIFICE: .59 .00 .020 MIDDLE ORIFICE: 1.55 3.00 .080 TOP ORIFICE: 3.54 4.25 .170 ROUTING DATA: STAGE(FT) DISCHARGE(CFS) STORAGE(CU-FT) PERM-AREA(SQ-FT) .00 .00 .0 .0 .45 .01 1826.2 .0 .90 .01 3652.4 .0 1.35 .01 5478.6 .0 1.80 .01 7304.8 .0 2.25 .01 9131.0 .0 2.70 .02 10957.2 .0 3.00 .02 12174.7 .0 3.15 .04 12783.4 .0 3.60 .07 14609.6 .0 4.05 .09 16435.8 .0 4.25 .09 17247.4 .0 4.50 .27 18262.0 .0 JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE .-- _ �i or. rdv1`..... _ �}� .,a . ...... ....... �! .................... ....... . ....:_.. .;?ter .y H G ........ ........ __ ..... _. i2 ._. .. ....... __....... :...... ..._ �a _ . �/. _157 .... ... U, / 7 f 4-z .... -7 L S, S� • = 5 9ii� PRODUCT 204-t(Single Sheets)2054(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE l S�s�c..S/off .G' . .... G-/,�if �,.. ._......D• Dv✓............... Fo /_yv _. ..... . vs- 57 - -- r 3 � 3 r PRODUCT 2044(Single Sheets(205-1(Padded) �raoezozda � �hannel Anal4szs & Design Omen wnannel - uniform f `uL� wor�sheer Name : 725-001 [ommeni : BIO5WALE DESIGN Solve For Bottom Width Given lnpul Data --. Left Side Slooe . . 3 .00 : 1 M :V) Right Side Siooe . 3 .00 : 1 (H :V) Manning 's n . . . . . . 0 .350 Coannel Slone . . . . 0 .0E0O ft/ft Depth . . . . . . , . . . . . 0 .33 ft Discharge . . . . . . . . 0 .02 cfs Comouted Resuits : Worksheet does not nave calculated results . . . ^�y . Ouen [hannei Flow Moouie , Version 2 .01 (c ) 1S`S} Haestad Metnoos , lnc . * 37 Broc,kside Rd * Waterbury . Ct %70; ��J ~- �� .~ -rauezoldai Channel Malvszs & 6es101- Open [nanneL - un1101m `' io= surssneet Nyme : 725-DOE Comment : BlOSWALE CAPACITY LHE[|( 5oi ^s For beoth Given 1nout Data : Bottom width . . . . . 0 .50 ft Left Side Siope . . 3 .00 : 1 Right Side Slope . 3 .00 : 1 (H :V) Manning 's n . . . . . . 0 .0E7 Channel Slope . . . . 0 .0525 it/it Discharge , . . . . . . . 0 .27 cfs Computed Results : Velocity . . . . . . . . . 0 .80 fps Flow Area . . . . . . . . 0 .34 sf Flow Too Width . . . 2 .07 it Wetted Perimeter . 2 . 10 It Critical Depth . . . 0 . 15 ft Critical Slooe . . . 0 .0R ft/fi Froude Number . . . . 0 .35 ( flow is 5ubcritical ) Opeo Channel Flow Moouis , Version 2 .G1 kc ) 109� Haestad Methods , inc , ° 37 6rookside Rd * Waterbury , CI 0670O r 1 � JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE It TV-0- 44 T-T 1 T--1-- V-1- jj:-T LLL 4-1 _j_j:jj7jEj7-T-T--'! [q, 1-1-1 11111-3-1-- 0-J-1. 4-4 .1. v., T-t -4-1 A A- ............ PRODUCT 204-1(Single Sheets)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE 11-7 el 7...... H '- S,�fe P PRODUCT 204-1(SmgO Sheels)205-1(Padded) ~� ~� � � ^� �p �� m1 � � ^� " ' ^ "^ ~- =- ' � ' ' ' Czrcular Cnannel Anat /sis & Des : yr. 5oived with Maoning 's Eu:atzon Wen Channel - Uniform { iow worpsneet Name : 725-00E Comment : CAPACITY ANALYSIS Solve For Full Flow [aoacity Gzven Input Data : Diameter . . . . . . . . . . 1 .00 it Slooe . . . . . . . . . . . . . 0 .0030 ft /fi Mannzng 's n . . . . . . . 0 .012 Discharge . . . . . . . . . 2 .3O cfs Computed Results : Full Flow CBpacit / . . . . . 2 .38 cfs 4� ^�, �� v� Full Flow Deptn . . . . . . . . 1 .00 Ti ' - Velocity . . . . . . . . . . 3 .03 fps Flow Area . . . , . . . . . 0 .79 sf Critical Depth . . . . 0 .66 ft Percent Full . . . . . . 100 .00 % Full Capacity . . . . . 2 .3E cfs QMAX @ .945 . . . . . . . . 2 .56 cis Froude Number . . . . . FULL Ouen Channel Flow Module , Version 2 .01 /c / 1990 Haesrad Methods , inc , * 3/ Brookszge Rd * Waterbury , Q �670� JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE L6r-s f ik-<P G4�4,,oc-L fy 4A-e-17's am. y _S . S rrA_, r.. =7 o Fjs=T ...... .... ..._ - y�-L .. /}L. /f '`/ .. ... ............ �.....SSr,-e Tom . �Pv USj�/vi?% S f .2.16=.2•y -------------------- PRODUCT 204-1(Single Sheets)205-1(Padded) � Lo fit, �� •, r t .. , _ .30¢ �, � I . S.E• .97T.H _..SST .. � •s��> �-� 7 c 23 A s c 0 DPb G v' 4r c' •,c ash �q, it/_ 368 is /89 J 6c �mh 30 CO 0�1g9 � I Z� 1 ��•4 � �.J �+. Bfoo��vt ._ ..••�`•.. 9s'9s � 9 �i 7-- -- - - - /32 � gp el o a b. I O a9oo� �5 W GowRgvf�l�m o o ► o,� Y R oRf ` 8gao 0 f3 4 1' 1h p p �' qD 0 o� B9. L� s A�a'/z a�" • ,7�1' I V34 Per r_�V Z /00 .�41 a >g � ••Z� a Oo.oJ� 5�12 _ V kd i D o s r 1n p0 DDQ� 0 �!1 I •�'r. ��- /00'j :�' 10 rl `ti 13 Iv,' Sao w u ?zs r v., 0. cnca 007Q i ..� �^J J 38 c' _ ^G '•'a gL• 14 Z o 9s•o2 ° �� 52 37 N O O � (� 2 ki ,t�0 h M � 1 � �• 8'S 26L ;��•• � - /co N?e•isir^ly W ��-' " �t o � l�o�� oobo /oo Z 95. 4 3:• li N88•I '/S w Z 70. 7Y Cj dl ,'•8 2S 25 ti�1 DD$ �.\ '' _°_ N.E•:- 5 TH s T .75f 1.0r.4 A Y. S0,00 74.00 � _,� �o sG2.00 G2•oo GZg9. 8 �� ' .. C N^tiDD1p `p��D. ,t�0 ..b .. Q,r rv�' , t•,� � ZD °pD�o p N' 0a- N ' . co--``$*` 2 - �04 1 yf,va ° Lb �o ,� >o.7� 1296.35 LO W z— + 9 ^� Sao/ - >6.e7 7c S. 6'B•/s/s wiz.9B .L r �... i 7Z.3o _ D- 6aqo � QOla 0Q� ,�y,toI%ot ° ��rjj S. 8B•/s• /sE c/o. z� 01 J200 ° P r z5 � rl, �2 >2.3o S E loorH S _,0. ro" APta A 77;�o �t7F�ll17 /�A nogD .InO I .i2� 1 nr�0 �I �1 122119 �1 12f9.a e l ,�r : P A/6 2-S 4�3 .sT 41/,4�_Ys.7_-.s ---------------------------------------------------------------------- ******************** S.C.S. TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3. 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2.6 68.0 1.6 98.0 5.0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 4.2 2.6 68.0 1.6 98.0 5. 0 PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT) 2.16 7.67 32293 /dp S T er 4 r rY � [zrcu �ar �nannel Anal �szs & �esz�r �oiveo wzth Mann�og 's Euuaiio� Goen [nannel - Uniform + �o� �or�sheet Name : 7�5-�� Comment : CAP�CIlY �W�LYSiS 3oive For Fuil Flow [apacitv Gz,en lnout Data : Mannzng 's n . . . . . , . 0 .012 Dzscharge . . . . . . . . . 4 . 19 cfs Computed Resuits : Full Flow Caoacity cfs ^�� Full Flow Decth . . . . . . . . 1 .00 ft Crztzcal Depth . . . . � .8� ft Percent Full . . . . . . 1�0 .00 % Full Capacity . . . . . 4 . 1� cfs Froude Number . . . . . FULL i)pen [hannei Flow M�dule , Ver�ion � .01 (c> 1990 Haeszad Mezhoo� . lnc . * 37 �rookszoe �d * Water�ury ` Ct 067vG BAIMA & HOLMBERG INC. DRAINAGE REPORT FOR HONEY CREEK HEIGHTS January 29, 1998 Baima & Holmberg, inc. Job No. 725-002 City of Renton No. LUA 97-036 SOU PE�I Of WAS rrl 11332 SSfONAL � Prepared for: Bob Colwell 2625 NE 27t" St. Renton, WA 98056 100 FRONT STREET SOUTH ISSAQUAH WASHINGTON • 98027-3817 (425) 392-0250 (425) 391-3055 x m KENNCK AV NE ICOLN PL ---_ _._ KE NEWICK-AV••NE_—._—__ -= �Y 11OTHF AV S LINCOLN LINCOLN AV Ni rm �, 3'1 YE NEWICK PL E MO El' Av N m M NTEREY ;, tt m7. y o NE 1400 NTER NE rQ-I ,�; V N E EY 1 �a AV `ABERDEEN CT NE ram; �',; — 200 2000 S BLA 1 AV IAJEAAl BERDEE \\``�; N: vAl AMASS+ AV NE N NE, z AV N z I \ 1 m m o m w:A NE:. w CAMS AV p \,`\ �4 0o HE z , , ;\,,� ry -4 o iYTON av o pAYTO17� :AVQE` � `\ ` '9mAYTON V cn NE m 0o, 168 Ln `" 16TH EDMON m m AVN E ' 1 R'^1 '^L N W aV < - _ cn 60 r� - cn o. 2000 Lz_�z _ m .Y2600 :: m— c o FERNDALE \,\, "�'' ✓ o --I a, `- m ,v y T CD cl AV \\. ql E N U, �°:, � , \\ ` _ 118TH 0 w AV \ tJ� NARRINGTON � IND x2 R -r\\\�\+ ,� \t�\\�\\\„\\\\\11 i PL 3s rv�" ..� O Y SE [ HARRINGTO u \ +\\\B'�N xx\ It o av; ♦,,v q;+A\�, ,\, yVA1\\V ��A\\v,AvA W w PL NE , r \\ ' \�\\,`\ ;�� `,� \�0 12 H N L%w to JEFFER N �\\1 �HILLCR� '�;;`'\�,��\� � --+ m o ") \,\\ O \,a\ `,rL� \\\`21`\\\\\\\\�,\\� �1 m LN NE JEFFERSON`AV NE ,Mr' 1d `\�, ��\� \�\�� F KIRK o ,,+.,AV �r \� N 1\\\\�\ a\ �:+ \\� 12isT ��\ �� rn m. ti O � 1� ND p Z� rn Rim c o co AV m V N rt�. {to 1 6TH \,\p\,rn co \,\\\\q\\1�u\\rn \�\•t'`\\\\\�\\,�„ \ P< S S , N, Zk ~O P SE \op\\ �\\\i�\+\h\`\\\\\\C�\,a \\,\� (� AV S N m, u, \ M. ca ]� \y\u\\ \i\� 27TH PL SE ti,�„„\Ml 27TN PL SE QUEEN ' AV cs� -i �n ,� �" \�\`,\\`\;� \\'�i\�+�\�� „+\�,\ m NE o �' 128TH AV SE !,,, = cn ,a o '� ��\\r\�\\�`\\\�a�\�\`� � �d N182 �\ \\\\\\\\\\` �'` `��\ SE SE 129TH ?9r �,j \,\\`��m�`\,\\a`a�\\��\��,., ,�5 1291H PL L; AV: SE N SHELTON AV NE �' "\ (moo") �� w��\\\\\\\\\\ nor tvF _132ND --AV--- -SE-- BAIMA & HOLMBERG INC. DOWNSTREAM LEVEL 1 DRAINAGE ANALYSIS FOR HONEY CREEK HEIGHTS January 29, 1998 Baima & Holmberg, inc. Job No. 725-002 City of Renton No. LUA 97-036 Prepared for: Bob Colwell 2625 NE 27`h St. Renton, WA 98056 100 FRONT STREET SOUTH • ISSAQUAH • WASHINGTON • 98027-3817 • (425) 392-0250 (425) 391-3055 PROJECT OVERVIEW This project involves subdividing a 2.84 acre parcel into 19 single-family residential lots. The site is located at the east end of NE 25th Street, east of Edmonds Avenue NE in Renton, Washington. The site is relatively flat and slopes generally to the northwest. The site is open and undeveloped with a few scattered trees. Existing soil conditions consist of Indianola fine loamy sand. LEVEL 1 DRAINAGE ANALYSIS Indianola soils are class A soils. Due to the soil conditions and the flat topography, the runoff from the site infiltrates into the soil. The developed downstream site conditions consists of routing the on-site runoff through an on- site detention vault and bioswale that discharges into a proposed storm system flowing west along N.E. 25th Street. The runoff flows west in this proposed system for approximately 385' where it discharges into the existing City of Renton storm system. This system flows north approximately 500' along Edmonds Ave. N.E., where it discharges down a slope and eventually drains into May Creek further than a Y4 of a mile downstream. I I I I —————————-- I I I I I 57eRM I ? i - I I I MJ�MN.6 N 14 I ww[nwuu I I I ra.na a I / -ueran, s� i l� I Iat 12 �? — 3 11 t 5432 SE 1/4 171 ZF8-3 I : • f r a_6 . '• N P( F, :.. 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Ur AmC \ • \... azelvz�• J : • I c' • Inc j • I P '• ,\ : Bh AkF AgC Mp Btd .• BM Bt -_KPD 20 2d *AgC V 42 - - - _ �BeC �� c`'• 0 AgC A( � KpB t D 'Pinesl \ rlewpor� g S, Jr Hills Bec t InA ,� , rill't AgC - -- - 'x ' n .a n W El Evl3 y KpD o i BeC U, sk .��Nev; 2 Ata i� /• Ago s JI`' • BM i \ 39e EvC• j 2 '�• • I 8 PD :4gC 5 AmC •Bee C Sh AgC I May e • < C�= � .EvC 109 • t�; OvD Sy g�l )• • AgD '• r BMA BM s �' 690 692 • \ .`i� ! rn I; 'AgC . AgC ; < ` Na = BM c+ ` _iJi• - ` 605 SM Bec C AgC �Ag 2 2 A D AgD ; �c1 'a 34 ' g ;\ AgD a i'• y AC . . ,g • el �`e' •I: n Kennydale •InC AkF I •� +!r .' AkF ��• AkF EvB r AgC I BeC EvC 2man Poin c• rr: Py T c • AkF '• // 'Inil• �• I C..� 306 AgC L_ ———— -- — -- 04. B BC AgD ^ ? n s •BM•30$•• �� u. ( t>xkr _ f 'u °. EEO O(..• AgD. l ;�E�v 4ti ti �� ..+ 'o AkF AmC JyFc s yk-rx s•., ' � ` v 2a a ": '• I + '*��. , 1`',' N" a t•r Sm' l• 1.:`• ••'' ; Y Y 3 .r Wf.ytt.•.aax:. -i7:�.. SS�y, •�,_ InC- I •�' Ir„r i 'i!L ® N �• ti •• EvC' t r. ;..r. A ••d '. .,o-,•j= ;E.. -t= �'S+ .•� • ID r J'I-'. V 1f _ %a dj..}.-.- 1a'�c S •��•�i �.� • r r Y �7 ;-�; ,o by } .� Tg .. ♦ • I ' .iri :.. '8 grH AgC I I 12" STORM OUTFALL TO NE 27M ST. ( 25' 25' WIUS IT Z S.tS' EXIST. HOUSE ! W I \ 1 v > N 88'15'36' w 370.71* _ Q � Q W 20SunurY � --�— EAS4MEN T � ❑ /J� 0 17 C8v ]5 . W I o STA 11+ 1.�1\ 14 13 LL : 1 Cep, �E I n C819 c' RIM _ S STA 0+02 �—R M 0+05, 25'L 132-1�1.5 z '- RIM 323.05 / I RIM ++05,.7 I r1 INV�320.16, INV-317.25 -r awQ t 00 i n _ z 1.00 co N N.E. 25TH 8T 32--12 .0 0.50z C8j2 160' 2' 0 0.38% - - 12 STA 0+02 I RIM / STA I MV=320.00 0.00 i �, STA 1+61.31 / RIM - 325.56 65'-12' i INV 'Z17.5 INV=319.39 O 0.38% -.. ROCKERY I 2 3 CBpS 4 MAX•HIECHT 8' STA 2+40 j ± 1 -- RIM - 326.19 C8p7 11 (� W INV = 319.14 8 STA 3+16.24 ! 43'-12' 0 0. 9 r-i.ta INV - 322.0 p n 32,9 STA }+ 32'-12" O 9.69:G � . . ••„' Z RIM - 326.79 __ \ � INV 313.908.90- 10 oI BIOSwAIE i 110'-12' O 0.38 1\vp �V 190' O 0.25% 8 7 � 77• � rt \ < 73 10* _ _I N 88'15'157 W I / / ,�s 90.02' *vim INV138.p - N 8815' S' W 280.69' o o-- n t N 00'31'03' E CO ( CONTROL STRUCTURE INV-318.45 ` ` 20.00' INSIDE VAULT, CBpB or JOB S O o BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY ` DATE 7/Z ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE Td .. oz . Y G ✓� n i/��ii>rs ...... s , ! i.. ................. _... ...... .. ._.. - � ... /tlo ..._..... e- .........KS f �.5�v r C �0 C//�. !f•D� S _ Sv •2 �? Gla__ _. / vet PRODUCT 204-1(Single Sheets)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE T _� __ - - / f tyell Q . PRODUCT 204-1(Single Sheets)205-1(Padded) ---------------------------------------------------------- ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP . ********* --------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 65 . 0 . 0 98 . 0 25 . 3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 2 . 8 65 . 0 . 0 98 . 0 25 . 3 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) . 04 23 . 83 1384 -------------------------------------------------------------------- ******************** S .C . S . TYPE-lA DISTRIBUTION ******************** ********* 10-YEAR 24-HOUR STORM **** 2 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 65 . 0 . 0 98 . 0 25 . 3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 2 . 8 65 . 0 . 0 98 . 0 25 .3 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) . 09 12 .50 4729 v ---------------------------------------------------------------------- ******************** S .C . S . TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3 . 90" TOTAL PRECIP . ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 65 . 0 . 0 98 . 0 25 . 3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 2 . 8 65 . 0 . 0 98 . 0 25 . 3 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) .27 8 . 00 9944 ifl 00 I ( 12" STORM OUTFALL TO NE 27TH ST. 25' 25' w' 5.15' EXIST. l 1 I I HOUSE V\ I W \ 1 PaEs Q I t N 88-15'36" W ® se 370.71' �v \ W EASEMENT 20 U LITY - � EASEMM ENT � \\ Z I I 19 _Ef x 1$ 17 W I _ 58i+6,.3, 15 14 ` O — 13 LL CB/1, TYPE 1 C819 RIM = 325.5E /c A ' n INV=321.50 / \\Y STA 0+02 ST P 0+05, 25'l RIM - 323.05 RIM�r,.323.7 32'-12'O 6.5 X INV--320.16 INV-317.25`...... sz � Ex iy.. o -1. l.fo -1 00 r+ J? - . 1CH1.00 ` N. . 25T.H T N N.E. 25TH ST `o 1 _ V e 3 �12' O O.SOR -� '�..- P STA20+02 160' PE 2' O 0.38x 12 //` RIM - 323.05 I C8/3 ; IL _ MV=320.00 j �' STA 1+61.31 RIM = 325.56 0 0.38" I I INV =.317.5 INV=319.39 O 0.387. ROCKERY I 1^ 2 •� CB#5 4 MAK HIEGHT 8' STA_. RIM 326.19 u CBX7 11 INV = 319.14 g STA 3+16.24 W o I 43' 12" O 0.38% RIM _ 9 IN - 322.0 r 1 Pi-S.IA G ate\`\[f n \\ o � i ire �- STA 3+ 32'•••12" O 9.69R �\ Z RIM - 326.79 v INV - 318.90 BIOSWALE 1 110'-12' O 0.38 190' O 0.25% I n 8 7 Q 77- O - - a 22' v 21' v 8 <- J c- �.ozz. \. TRACT,�S�; O N 88'15'15' W I 90.02' O ING�'38.0 N 88'15' S" W 280.69' I Cl ° °, N 00'31'03' E C9 I CONTROL STRUCTURE INV=318.45 • 20.00' INSIDE VAULT, C618 or I1 JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCAL-------------- .... ............ _ _._ lv 'v.v f_.. .. / 02 5 .a. ��......... . (/K 47)�-43 .� < 0?— id� �/� 3f6 / v7 r ' ... 14 use _ P✓c/i dS 14 . E� Pfl000CT 204-1(Single Sheets)205-1(PadAed) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE .... 40 /• 3___� ..5_ e /0 ......=../ /._.. -..S_ Pfl000CT 2044(Single Sheets)205-1(Padded) ******************** S .C.S . TYPE-lA DISTRIBUTION ******************** ********* 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 .3 68 . 0 1 . 6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 1 .3 68 . 0 1 . 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) 79�_ 7 . 67 10944 ---------?2----------------------------------------------------------- ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 10-YEAR 24-HOUR STORM **** 2 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 .3 68 . 0 1 . 6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 1 . 3 68 . 0 1 . 6 98 . 0 5 . 0 PEAK-Q(CFS) T-PEAK (HRS) VOL(CU-FT) 1 .23 7 . 67 17766 �!o ---------------------------------------------------------------------- ******************** S .C.S . TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 . 3 68 . 0 1 . 6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 8 1 . 3 68 . 0 1 . 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 1 ..',�84 7 . 67 26021 ` 'ob JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE OL Ila 4 le 02 7 Sep G7�U✓' U °�o lS_ �� . ��!...... . Ted.... � ;. wx ..... 1 Tom ', ...... .. PRODUCT 204.1(Single Sheets)205-1(Padded) PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 1.84 .27 , #Il#e .27 4.50 15231 TEST HYD 1: 1.23 09 .09 4.22 14280 TEST HYD 2: .79 �_2 v Q�lp�w.02 2.96 10000 A//iwt SPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP ENLARGEMENT OPTION: ALLOWS FOR INCREASING STORAGE AT A SPECIFIED STAGE HEIGHT, TO PROVIDE A FACTOR OF SAFETY. ENTER: STORAGE-INCREASE(%), STAGE-HEIGHT(ft) PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 1.84 .27 .22 4.43 17973 TEST HYD 1: 1.23 .09 .08 3.79 15370 TEST HYD 2: .79 .02 .01 2.49 10090 SPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 1.84 .27 .22 4.43 17973 TEST HYD 1: 1.23 .09 .08 3.79 15370 TEST HYD 2: .79 .02 .01 2.49 10090 STRUCTURE DATA: R/D-VAULT RISER-HEAD VAULT-BOTTOM-AREA STOR-DEPTH STORAGE-VOLUME 4.50 FT 4058.2 SQ-FT 4.50 FT 1826�2 CUB--FTC 140dlLr,�� TRIPLE ORIFICE RESTRICTOR: DIA(INCHES) HT(FEET) Q-MAX(CFS) BOTTOM ORIFICE: .59 .00 .020 MIDDLE ORIFICE: 1.55 3.00 .080 TOP ORIFICE: 3.54 4.25 .170 ROUTING DATA: STAGE(FT) DISCHARGE(CFS) STORAGE(CU-FT) PERM-AREA(SQ-FT) .00 .00 .0 .0 .45 .01 1826.2 .0 .90 .01 3652.4 .0 1.35 .01 5478.6 .0 1.80 .01 7304.8 .0 2.25 .01 9131.0 .0 2.70 .02 10957.2 .0 3.00 .02 12174.7 .0 3.15 .04 12783.4 .0 3.60 .07 14609.6 .0 4.05 .09 16435.8 .0 4.25 .09 17247.4 .0 4.50 .27 18262.0 .0 JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE Tao d-�e, _ �i?�•^� ,..................h dv1 ... ^-1a / 7 Gf'S ...... ... .. ..... . .._..._ . ... G^ o, N .. :....... ...... .... 3, 9 CSJ2 PRODUCT 2D4-1(SiNle sneers)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE .......... F G'. ';.... /yo ...... --7;. .................. �: . 7 ....0 -. ,SG/Q . __ . 3 ; PRODUCT 204-1(Sin01e Sheels)205-1(Padded) r i'raoezoida � Channe � Anai\ s�s & Deszgn Ooen wr.annel - Uniform f `ux Worxsheez Name : 725-O0� Eommeni : BID5VALE DESIGN Some For Bottom Width Given lnpu{ DaLa : Left Side Slooe . . 3 .00 : 1 M :V) Right Side Slone . 3 .00 : 1 (H :V) Planning 's n . . . . . . 0 .35o Cnannel Slone . . . . 0 .0200 ft/ft Depth . . . . . . . . . . . . 0 .33 ft Discharge . . . . . . . . 0 .02 c`s Comouted ResuLts : worksheet dues not nave calculated results . . . Ooen [hannei Flow Mzoule , Verszon E .01 CO 1000 Haestad Methoos , inc . * 37 Brookside Rd * Waveroury . Ct 0w7O8 -raue10101i Ihanneh Anal ,szs weslgn Ooen [nanneL - un!, orm ` `o~ .orksneer Name : 725-002 Comment : 6lO5WALE [kPACIT| LME[K soi^& For ueuth Gz ,en 1noui Daia : Bottom width . . . . . 0 .50 V. Left 5zoe 5lope . . 3 .00 : 1 (h :V) Right 5zde Slope . 3 .00 : 1 (H :V) Manning 's n . . . . . . 0 .OE/ Channel Slooe . . . . 0 .0025 ft/ft Discharge . . . . . . . . 0 .27 cfs [omouied Results : Deomh �� u��~�' . . ' ^ . . . . . . . ` ��«2 Fiow Area . . . . . . . . 0 .34 s{ Alow Top Width . . . 2 .07 ft Wetted Ferzmeter . 2 . 1n ft Crirical Depth . . . 0 . 15 it. Critical 5looe . . . 0 .0E ft/ft Froude Number . . . . 0 .35 (flow is 5ubcritical ) Dpeo Cbanoel Fiow Moduls , versyon 2 .61 kc3 1�96 Haestad Methods , 1nc . ^ 37 BrooKside Rd * Wateroury , Cc 0670O JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE z ... �. .... _.. ......... ..... . ...... PRODUCT 204-1(Single Sheets)205-1(Padded) JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE 3.g "/o �•G�!fit Q�P� =.. ,�-«..X eZ 3 8 c�_II 1....... �¢r--e PRODUCT 204-11Smgle Sheets)205-1(Padded) ^*� ��- � T ,� � .�� L. /v ~~,�_ ^ _ _ . _ _ _ Circular Cnannel Deszgr 5oioed witn Maoning 's EQ'^aKon Men Channel - Uniform {low Worksheet Name : 725-00E Eumment : CAPACITY ANALYSIS Solve For Full FLow [aoaczty Gzven Input Data - Diameter . . . . . . . . . . 1 .00 it Siooe . . . . . . . . . . . . . 0 .0038 fz/ft Mannzng 's n . . . . . . . 0 .01E Dismarge . . . . . . . . . 2 .3O cfs [om"uted Results : Full Flow [apacity . . . . ^ E E cfs wu�� Full Flow Mom — . . . . . . 1 .00 ft Velocity . . . . . . . . . . 3 .03 fps Flow Area . . . . . . . . . 5 .79 sf CrzLzcal Depth . . . . 0 .66 ft Percent Full . . . . . . 100 .00 % Full Capacitv. . . . . 2 .32 cfs QMAX @ .94D . . . . . . . . 2 .56 cfs Froude Number . . . . . FULL Owen Channel Flow Moduie , Version 2 .01 (c / 1990 Hnestad Methods . lnc . 1 37 Brookside Rd * Waterbury , Cc 0670E JOB BAIMA & HOLMBERG, INC. SHEET NO. OF 100 Front Street South CALCULATED BY DATE ISSAQUAH, WASHINGTON 98027-3817 (425) 392-0250 CHECKED BY DATE SCALE ff ..... _..... .. s. ' - Af 6........ 7 _/ ?`,r,,P. = 3 . .5 .. off .. ....... L. ..... G - .. 8 . fPety,o -s. Aim .....= . . / .►21 .= . /.. � �,2 .Sy / � e-'Al ' 68 GNP 9 0 �. ?f .�./6 =2 ...... . 4'1 = - i,y � ale w S/d �s 71 e'w�' PRODUCT 204-1(Single Sheels)205-1(Padded) . y t oR 30`I ; 20 3. W9 7 T.H ST. .. . �o ( 73ASS BL D �•�'o` �� ' K h 0 e y9 PG �G' Pv' 4r [�j�, >� 0 ��4 N_ 36B is/. / J /!•G 3!' h 30 /j9 i oti I D.LLrZ 4 I�.J .Sh Bfoo 1a.v _ - ... 9�-9s - ,°o.a - OPP �� ' �00 ° � GoN T R I B v f�l� N _ Y m 3° N' 6D qQ 43• g TEA go`04 �� 7i �► 4 0,30 d 9D' \n �. e. '17,AM2'42" �212 h Q i ao OpQp u OIZ0 !�. Lij c 13 Lwi o h 9 *c. Q cr°c o b o f t o '`to�o .Q p 007o I J 38 AG I v �0. Z - ,�= .. lam}• . � 2 0 ... � �_ . � y2 r ' 3 v O O 0Nto L>r h "10 6 h Z85 z6� /oo N?8•isir"[y W I� " �\0060 Q 0 )70.71ioo z 95. 4 3:• (L Nee./ _V,ls ly N i 9,02 25 7-14S U v o I14.E: 5-TH �T�75� 1-0 C�.H �v *4� L k�. N • Is ,�s,•�y _340_moo_ go,00 71s.�00 c2.00 G2'oo �2•F9 �� .-� ! '/1 Ca°N f,ve 19 is is•. 62-40 Lt.! O 0>I.7/ 8 v� 1296.35 o� W ?ao� >6.87 T56 751,,z.7,9 - er '� G�,�ico Olt) o 0 0got 7 � N0040 0 0070 0�p °� por a d v Fr) • � 72.30 .•� L�g ��.� s N z, 01J200 0 ►. .'.� o 3 s e on r N sr- 7 or 1z AM A o k�0 of co n 17- of 1ya:a zZ Ql� �2 9 a lo o�l 7�8 , � ,:: 17 P n09d �.rn0 i .,z nr�0 .. 1 n »r - ---------------------------------------------------------------------- ******************** S.C.S. TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3.90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2.6 68.0 1.6 98.0 5.0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 4.2 2.6 68.0 1.6 98.0 5. 0 PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT) 2.16 7.67 32293 '(d0 �� «� �� ^� � � �- � � �-� =~ , . �-�^ « ^^ ~�~�' ^ ^, �� m.4)--^^,iz7s [ zrcuLa' Cnannel Anal ^szs & i'eszy sciveo with Manning s Eouaiion �oen [hannel - Uniform fLuL� norxsheet Name : 7E5-002 Comment : CAPACITY ANALYSIS SoLve For Full Flow Capacity liven input Data : Gzameter . . . ^ . . . . . . 1 .00 V. Slooe . . . . . . . . . . . . . f!/ fr Mannzng 's n . . . . . . . � .012 Dzscharge . . . . . . . . . 4 . 19 cfs Comouted Resuics : Full FLOW Caoacity , , , , , -;cfs ��— AMw^J� Full Flow Deoth . . . . . . . . 1 .00 ft ^ , VeLocitv . . . . . . , . . . 5 .34 fps Flow Area . . . . . . . . . 0 .79 sf Critical Wpth . . . . 0 .86 +t Percent Full . . . . . . 100 .00 % Full Capacity . . . . . 4 . 10 cfs QMAX 2 .94D . . . . . . . . 4 .51 cfs Froude Number . . . . . FULL Upen [hanneL Flow Module , Version 2 .01 (c) 1990 Haestad MeLhoos . Inc . * 37 Brookszoe Rd * waternury ` Ct 067% TERRA ASSOCIATES, Inc. Consultants in Geotechnical Engineering, Geology and Environmental Earth Sciences March 10, 1997 Project No. T-3526 Mr. Bob Colwell 2526 NE 27th Street Renton,Washington 98056 Subject: Wetland and Wildlife Habitat Evaluation NE 25th Street Site Renton, Washington IDear Mr. Colwell: 1 As requested, we have conducted a wetland and wildlife habitat evaluation of the NE 25th Street property in Renton, Washington. The purposes of our work were to evaluate the site for possible wetland conditions, describe the existing site conditions, and identify habitats and potential wildlife use of the property. The scope r of our work included a site visit on March 4, 1997. The weather conditions during this site visit were partly Iclear, calm, and moderately warm (--45°F). This letter summarizes the results of our observations and evaluation. i i GENERAL SITE CONDITIONS The subject property is a rectangular parcel of approximately 2.83 acres located at the east end of NE 25th l Street, east of Edmonds Avenue NE in Renton, Washington. An additional access point is from NE 24th Street to the southeast corner of the property. The adjacent property on all sides of the NE 25th Street site is occupied by moderate density single-family residential development. Topographically, the site is nearly flat, with elevations of 328 feet in the southeast corner and 322 feet in the northwest corner. Soils on the property and in the surrounding vicinity are mapped as Indianola fine loamy sand (Soil Survey of King County Area, Washington, Soil Conservation Service). Indianola soils are characterized as somewhat excessively drained soils formed under conifers in sandy, recessional, stratified glacial drift. The Indianola soil type is not included on the National Technical Committee on Hydric Soils (NTCHS) listing of hydric soils. Our observations of soil conditions on the property are consistent with this designation. 12525 Willows Road, Suite 101, Kirkland, Washington 98034 • Phone (425) 821-7777 Mr. Bob Colwell March 10, 1997 Vegetation on the NE 25th Street site is dominated by invasive shrubs, particularly Scot's broom (Cytisus scoparius) and Himalayan blackberry (Rubus discolor). Part of the site appears to have been used as an orchard in the past, and old unmaintained apple and cherry trees are present. Some red alder (Alnus rubra) and big-leaf maple (Ater macrophyllum) saplings are becoming established. A few large Douglas fir (Pseudotsuga menziesii) trees are located on the property, primarily near the south edge of the site. Other plant species observed on the property are listed on Table 1. 1 WETLAND EVALUATION No wetland conditions are present on the property. No location on the property satisfies any of the three parameters(vegetation, soils, and hydrology) required for designation as wetland. Vegetation on the property is dominated by species in the facultative-upland and upland categories. Many of these species are exotic and/or invasive. No obligate wetland plant species are present on the site, and we found only one species in the facultative-wetland category. As mentioned above, soils on the property are mapped as Indianola fine loamy sand. The observed soil samples on the site were generally dark yellowish-brown (10YR3/4) with no mottles. These are not hydric soils and are characteristic of dry upland sites. We found no areas of inundation or saturated soil conditions on the site, in spite of heavy recent rainfall. There 1 was no indication that any part of the site has ever had saturated soils. WILDLIFE HABITAT- VEGETATION COVER TYPE The entire site is occupied by a single vegetation cover type: persistent lowland shrub. The cover type on surrounding property is moderately vegetated suburban residential development. These cover types are based on the habitat categories listed in the King County Wildlife Study Guidelines for SEPA (1993). Similar I categories are listed and described in the King County Wildlife Habitat Profile (1987), with lists of potential wildlife species in each habitat. Persistent lowland shrub habitat covers the entire property. This cover type is described by King County (1987) as shrubby thickets commonly found in disturbed areas, such as edges of agricultural fields, utility corridors, roadside edges, and vacant lots. Vegetation in this habitat is dominated by Scot's broom and Himalayan blackberry. It appears that the site was 1 formerly used as a fruit orchard, and these species invaded and became dominant when the orchard was abandoned. Dense stands of these species can be resistant to invasion by native tree species, although a few red alder and big-leaf maple saplings are present. A few Douglas fir trees are present near the south edge of the 1 site. The locations of these trees are mapped on Figure 2. These trees were probably present while the site was in use as an orchard. A variety of grasses and weedy species are the most common herbaceous plants, but sword fern (Polystichum munitum) and bracken-fern (Pteridium aquilinum) are also present. Project No. T-3526 Page No. 2 Mr. Bob Colwell March 10, 1997 The dense shrub thicket provides relatively poor habitat for wildlife species because of the dominance by invasive exotic species and the limited vegetative structural diversity. However, the fruit trees and the Douglas firs will provide some addition diversity. The isolation of this site would also limit its suitability for wildlife. The property is completely surrounded by suburban residential development, with houses, garages, driveways, and landscaped yards. Suburban residential areas have relatively little value as wildlife habitat. Wildlife species that could be present in this habitat are listed on Table 2. The shrub thicket might provide some marginal foraging habitat for a few amphibian species, but no breeding habitat is available for amphibians. We did not observed any amphibians during our site visit. The most likely amphibians to be encountered far from wetlands are the northwestern salamander (Ambystoma gracile) and the long-toed salamander(Ambystoma macrodactylum). The lack of water in this habitat also limits its suitability for most reptile species. Northern alligator lizards (Elgaria coerulea) and western terrestrial garter snake (Thamnophis elegans) could be present in this area. The dense shrubs on this property provide foraging and breeding sites for several species of birds. Because of their high levels of daytime activity and vocalizations, birds are the most commonly encountered group of vertebrates. Some of the commonly observed species on the NE 25th Street site were the song sparrow l (Melospiza melodia), American robin (Turdus migratorius), Steller's jay (Cyanocitta stelleri), and rufous-sided towhee (Pipilo erythrophthalmus). A large number of migratory songbirds, including flycatchers, swallows, warblers, and vireos, would be expected on this site during the breeding season. Most mammals tend to be secretive and nocturnal, and none were observed during our site visit. The shrub habitat provides some foraging and cover for several species of small mammals. Common mammals that would be expected in this habitat include deer mouse (Peromyscus maniculatus), eastern gray squirrel (Sciurus carolinensis), house mouse (Mus musculus), and raccoon (Procyon lotor). Several species of bats could forage over the site during the summer. Larger mammals such as black-tailed deer (Odocoileus henzionus) and coyote (Canis latrans) are likely to be present in the riparian corridor along May Creek and could occasionally pass through the residential area. PROPOSED DEVELOPMENT AND IMPACTS The proposed action for the NE 25th Street site is construction of a single-family residential development as shown on Figure 2. The subdivision would create 19 separate lots, with primary access from NE 25th Street. The proposed level of development will require most of the site to be cleared and graded for road construction and preparation of building sites. This development will result in the loss of about 2.83 acres of lowland shrub habitat by conversion to suburban residential habitat. An effort will be made to preserve the existing large Douglas fir trees on the property and incorporate them into a planting plan for the new development. Project No. T-3526 Page No. 3 Mr. Bob Colwell March 10, 1997 During initial site clearing and construction, some small mammals will likely be killed or injured, while larger or more mobile mammals and birds will be displaced to adjacent areas. The survival of displaced animals will depend on whether they are seasonal or permanent residents and on the capacity of adjacent habitats to absorb the additional population. Because of the level of existing or proposed development in the surrounding vicinity, it is likely that most displaced animals will be unable to find suitable unoccupied habitat. The overall carrying capacity of the site for wildlife will be reduced by habitat conversion and removal. However, because of the existing condition of the site, this development activity would not impact valuable or significant wildlife habitat. After construction, the cleared areas will be replaced by landscaped areas and impervious surfaces, including streets, sidewalks, driveways, and single-family residences. The residential landscaping will create patches of ornamental shrubs and trees intermixed with short-grass lawns. Habitat changes resulting from residential construction will result in the replacement of some native plants and animals with species adapted to disturbance and urban settings. 1 Birds such as European starlings (Sturnus vulgaris), house sparrows (Passer domesticus), house finches (Carpodacus mexicanus), American crows (Corvus brachyrhynchos), and American robin will become more abundant in the residential landscapes. Some species such as Steller's jay and downy woodpecker (Picoides pubescens) might continue to use the developed area,but in smaller numbers. Small mammals, other than moles and house mice, are unlikely to use residential lawns appreciably. With the proximity to May Creek, coyotes and black-tailed deer could remain in the vicinity and could occasionally pass through the residential area. Raccoons, striped skunks (Mephitis mephitis), and opossums (Didelphis virginiana) could forage in gardens and ornamental plants and could become pests with regard to household waste disposed in garbage cans. The proposed density of development on this site will form barriers that could inhibit the free movement of animals across the property. The road and subsequent traffic in the development will increase the likelihood of animal mortality due to vehicular collisions. However, because of the slow vehicle speeds on a residential f street, most wildlife would be able to avoid collisions. Species most susceptible to road mortality are those that are able to survive in residential neighborhoods, including raccoon, opossum, and eastern gray squirrel. Other aspects of the proposed residential development may have adverse impacts on wildlife and habitats. The use of fertilizers,pesticides, and herbicides on lawns, ornamental plants, and gardens will reduce populations of insects and weeds and will lower the quality of foraging habitat for small birds and mammals that feed on insects and weed seeds. Improper use of pesticides could result in direct poisoning of small birds. Street lighting systems throughout the development will increase the nighttime levels of ambient light. Nocturnal species could be affected by changes in lighting, although many species can adapt to higher light levels. Possible predation by domestic pets could adversely affect small mammals and birds and could limit the habitat suitability of the residential area. Project No.T-3526 Page No. 4 Mr. Bob Colwell March 10, 1997 1 SUMINIARY AND CONCLUSION 1 The NE 25th Street property has about 2.83 acres of low quality wildlife habitat dominated by exotic, invasive shrubs. All of the surrounding property has already been developed for suburban residential use, and no significant corridors connect this site with other wildlife habitat areas. The proposed development will impact the entire site for construction of single-family residences and an access road. An effort will be made to preserve the existing Douglas fir trees on the property. We trust this information will satisfy your current needs for this project. If you have any questions or need additional information, please call. 1 Sincerely yours, TERRA ASSOCIATES, INC. /Zvl� 1 Thomas R. Strong, Project Scientist TRS:ef Encl: Figure 1 - Vicinity Map Figure 2- Site Development Plan Table 1 - Observed Plant Species Table 2-Animal Species Observed or Expected On-site 1 I Project No.T-3526 Page No. 5 1 TABLE 1 OBSERVED PLANT SPECIES NE 25th Street Site Renton, Washington 1 Scientific Name Common Name Indicator Status TREES Acer macrophylluin Big-leaf maple FACU Alnus rubra Red alder FAC Ilex sp. Holly Prunus sp. Cherry Pseudotsuga menziesii Douglas fir FACU Pyrus malus Apple SHRUBS Corylus cornuta Hazelnut FACU Crataegus monogyna One-seed hawthorn UPL Cytisus scoparius Scot's broom UPL Ilex aquifolium, English holly UPL Oemleria cerasiformis Indian plum UPL Rosa pisocarpa Peafruit rose FAC Rubus discolor Himalayan blackberry FACU 1 Rubus leucodermis Blackcap UPL Rubus ursinus Trailing blackberry FACU Symphoricarpos albus Snowberry NI 1 HERBS Cerastium vulgatum Common chickweed FACU Bromus vulgaris Columbia brome UPL Dactylis glomerata Orchard grass FACU Epilobium angustifolium Fireweed FACU Geranium molle Dovefoot geranium UPL Geranium robertianum Robert geranium UPL Geum macrophyllum Large-leaved avens FACW Graminae spp. Grasses Hypochaeris glabra Smooth cat's ear UPL Lapsana communis Nipplewort UPL Plantago lanceolata English plantain FAC Project No. T-3526 1 1 TABLE 1 (CONTINUED) OBSERVED PLANT SPECIES ' NE 25th Street Site Renton,Washington 1 Scientific Name Common Name Indicator Status ! HERBS (Continued) Poa pratensis Kentucky bluegrass FAC 1 Polystichum munitum Sword-fern FACU Prunella vulgaris Self-heal FACU ! Pteridium aquilinum Bracken-fern FACU Rumex crispus Curly dock FAC Taraxacum ojfcinale Common dandelion FACU 1 Vicia americana American vetch FAC Notes: * Wetland Indicator Status: OBL Obligate wetland species - occur almost always(estimated> 99%)under natural conditions in wetlands. FACW Facultative wetland species -usually occur in wetland (estimated 67% to 99%), but occasionally found in non-wetland. FAC Facultative species- equally likely to occur in wetlands or non-wetlands(estimated 34% to 66%). FACU Facultative upland species -usually occur in non-wetlands(estimated 67% to 99%)but occasionally found in wetlands(estimated 1% to 33%). UPL Upland species -occur almost always(estimated > 99%) under natural conditions in non- wetlands. NI No indicator status assigned. 1 Project No.T-3526 TABLE 2 ANIMAL SPECIES OBSERVED OR EXPECTED ON-SITE NE 25th Street Site Renton, Washington Common Name Scientific Name AMPHIBIANS Northwestern Salamander Ambystorna gracile Long-toed Salamander An:bystoma macrodactylum Western Toad Bufo boreas Pacific Chorus Frog Pseudacris regilla REPTILES Northern Alligator Lizard Elgaria coerulea W.Terrestrial Garter Snake Thamnophis elegans BIRDS California Quail Callipepla californica Rufous Hummingbird Selasphorus rufus Downy Woodpecker Picoides pubescens Willow Flycatcher Empidonax traillii Tree Swallow Tachycineta bicolor Violet-green Swallow Tachycineta thalassina Barn Swallow Hirundo rustica Steller's Jay * Cyanocitta stelleri American Crow * Coovus brachyrhynchos Black-capped Chickadee * Parus atricappilus Bushtit Psaltriparus minimus Bewick's Wren * Thryomanes bewickii Ruby-crowned Kinglet * Regulus calendula American Robin * Turdus migratorius European Starling Sturnus vulgaris Warbling Vireo Vireo gilvus Orange-crowned Warbler Vermivora celata Yellow Warbler Dendroica petechia Wilson's Warbler Mlsonia pusilla Rufous-sided Towhee * Pipilo erythrophthalmus Fox Sparrow Passerella iliaca Song Sparrow * Melospiza melodia Lincoln's Sparrow Melospiza lincolnii Golden-crowned Sparrow Zonotrichia atricapilla White-crowned Sparrow Zonotrichia leucophrys Dark-eyed Junco Junco hyemalis Brown-headed Cowbird Molothrus ater House Finch Carpodacus mexicanus American Goldfinch Carduelis tristis House Sparrow Passer domesticus Project No.T-3526 TABLE 2 (CONTINUED) ANIMAL SPECIES OBSERVED OR EXPECTED ON-SITE NE 25th Street Site Renton, Washington Common Name Scientific Name ' MAMMALS Common Opossum Didelphis virginiana Vagrant Shrew Sorex vagrans Shrew-mole Neurotrichus gibbsi Pacific Mole Scapanus orarius Eastern Cottontail Sylvilagus floridanus Eastern Gray Squirrel Sciurus carolinensis Deer Mouse Peromyscus maniculatus Oregon Vole Microtus oregoni 1 House Mouse Mus musculus Raccoon Procyon lotor Striped Skunk Mephitis mephitis Coyote Canis latrans Black-tailed Deer Odocoileus hemionus 1 Notes: * Species observed on property, including visual sightings,vocalizations, or indirect evidence such as tracks,burrows,nests,or scat. it Project No. T-3526 i d J� y��/�� sneer no oroiect p '� �,,,, �� • by , 1 ` �� Miles Consulting Gp J� 1806 136th Pl., NE #200 on 2 0� �p • 'a Bellevue, WA 98005-2319 �no�kea a< r ' DETENTION TANK DESIGN: Design loads are for the actual dead loads and HS20 vehicle. Soil Load Depth is determined to be Civil Engineering Plans. Construction should be in accordance with latest edition of UBC Section 108 and should include; 1. All concrete work phases and strength. 2. Provide special inspection by Geotechnical Engineer confirming assumed soils parameters. 3 . Any fill placed below footings or slab has sufficient compaction to at least 95% ASTM D-1557 . Prior to excavation the Contractor will determine if any underground utilities exist in the area of work. Tank foundations have been designed based on; Allowable Bearing 2500 PSF Soil Weight 110 PCF Active Earth Pressure 35 PCF (Retaining) Active Earth Pressure 50 PCF (Restrained) Passive Earth Pressure 250 PCF Coef. of Friction . 40 (SF= 1.5) Foundation excavation shall extend into undisturbed soil. Should filling occur it will be place to 95% compaction and shall be inspected for adequacy. Back-filling of the walls shall be accomplished using a free draining material. When required, a sub-drain should be installed to carry away any local ground water which might accumulate in the back-fill or pond behind wall. Raise fill evenly around tank to prevent overloading walls at any specific point. Concrete construction for cast-in-place concrete shall be inspected and tested. The concrete shall attain a minimum 28 day strength of fc '= 3000 psi. Use of add mixtures shall have Owner approval. (Strength required to back-fill. ) Reinforcing steel shall conform to ASTM A-615-68, Grade 60. Lap splices shall be a minimum of 30 bar diameters. Fy= 60,000 psi. All horizontal reinforcing bars in walls shall be lapped around the corners. The reinforcing shall be protected by minimum cover as detailed on the plans, or when not detailed per UBC Concrete Construction. Any welded wire fabric use shall conform to ASTM A-185 . Pre-cast prestressed concrete planks shall be designed and detailed by the Manufacturer. Shop drawings shall be provided for approval prior to fabrication. Design and fabrication shall be in accordance with the Manufacturer ' s calculated data. Approved shop drawings, handling and erection details are to be shipped to the job site with the prestressed planks. r 22 HIGHWAY 3RiuGES 3.10.1 0 C Nsz,5.44 Io,I�LSS 4V1 Las qd �85 HS20-44 3,000 LEIS. 32,000 LEIS.* 32,000 LBS:W .HS15-44 6.000 LBS. 24,000 LBS. 24,000 LSS. mt 0 14'-0" o V o 0.4 W 1 ---• 0.4 `N 0.4 W W COMBINED WEIGHT ON THE FIRST TWO AXLES WHICH IS THE SAME AS FOR THE CORRESPONDING H TRUCK. V : VARIABLE SPACING — 14 FEET TO 30 FEET INCLUSIVE. SPACING TO BE USED IS THAT WHICH PRODUCES MAXIMUM STRESSES. CLEARANCE AND LOAD LANE WIDTH 10'-0" CURB) 2'-0" 6.-0" 2,-0" Figure 3.7.7A. Standard HS 7hudts "In tivc design of timber doors and o('hotrcpic steel decks(excluding transverse beams)for HS 20 loading. -met axle load of ?4,C00 pounds or two rA!c loads of 16.,'00 pounds acb. spaced 4 tcit apart mey be used, akichcvef produces -he greater stress,irstcad of the 32,000-pound axle shwa ..For slab dcs;p, to center line of-heels shall be assumed to be l That from face of curb. (See Article j..4.2_) 413 HIGHWAY BRIDGES App. A LOADING - )i 20-44 • TABLE Of MAXIMUM MOMENTS, SHEARS A` o REACTION3.-SIMPL3 SPANS, ONE LANE Spans in feet; moments in thousands of foot-pounds; shears and reactions in thousands of pounds. These values are subject to Specification reduction for loading of multiple Ianes. Impact not included. End sprat End sheers and and andction (n (a) spas moment reaction (a) span Moment . rea 1 ....... 1.0(b) 3l.0(b) 42 ....... 36S-1(b) 19.4 16.0(b) 12.0(b) 41 385.8(b) 40.t ......_ - 4j 405.7(b) 40.1 1 . 21.0(b) 12.0(b) 41 . . .. ... 425.6(b) 41.4 6 ..... .. 32.0(b) 12.0(b) SO 445.6(b) 42.1 ....... 40.0(b) 31.0(b) ....... 41.0(b) 32.0(b) 62 ....... 495.5(b) 424 7 ....... 66.0(b) 12.0(b) S4 ....... 485.5(b) 43.2 56 505.4(b) 43.0 t ....... 64.0(b) 32.0(b) 3- 530.1 44.6 ....... 72.0'(b) _ 12.0(b) 60 . .. $53.0 45.2 10 ...... . &0.0(b) 12.0(b) 11 13.0(b) 12.0(b) 62 ....... 534.5 45.8 11 ....... 96.0(b) 12.0(b) 64 .... ... 615.7 16.6 11 ...... . 104.0(b) 32.0(b) 64 ....... 645 i 47.1 a .. . . ... 675.E 41.t 14 .. . . 1 . (b 32.0(b) 10 . 707.0 46.4 It ....... 12020.1(b) 32.5(b) •.- 128.0(b) 33.0(b) 76 737.6 60.0 It itt7 1360(b)) 33 l(b) 30 .. 872.0 $1.6 34 960.6 631 ..... .. 144. 1.053.0 3/.t 11.•..... .. 152.0(b) 14.1(b) •• 10 ....... 160.0(b) 31.4(b) 13 . . . ... 1.141.6 64.4 11 ....... 161.0(b) 14.7(b) 1?0 ....... 1.250.9 31 • n ....... 174.0(6) 14.9(b)) ll0 ....... 1.463.9 61.3( ....... 134.0(b) 35.1(b) 111 ....... 1,937.0 $7.6 14 ....... 112.0(b) 16.3(b) 130 ....... 2.199.0 10.0 is ....... too.*(b) 16.6(b) ll0 ....... l.19t.• 10.t 14 ....... 201.00b) t$.T(b) Ise ....... 1.473.E 74.9 17 ....... 214.9(b) IS.I(b) 160 ....... 1.768.6 17-2 IS ....... 226.1(b) 16.0(b) 110 ....... 1.077.E 10.4 I ....... 236.7(b) 14.1(b) 184 ....... 1.402.0 93.6 30 ....... 214.6(b) 16.1(b) 1i0 ....... 1,743.• u•0 31 ....... 2-54.5(b) 36.4(b) ZA ....... 4.100.0 l0.0 12 266.3(b) 36.5(b) 220 ....... 4,362.9 16.4 31 ....... 174.4(b) 36.6(b) t40 ....... 6,688.2 102.8 34 ....... 134.3(b) 36.0 260 ....... 4.579.0 109-2 36 ....... 296-2(b) 17-2 130 ....... 7.532.1 116.E ` 34 ....... 204.2(b) 174 300 ....... 8.550.2 1t2:• 11 .._.... $19.1(b) 17.5 31 ....._. 329.1(b) 38.1 30 ....... 136.0(b) 3s 6 (a) Concvntratea 10a4 In oons!der d ;'1:rd it tba lu"Ort Loa's msd art those rtlpuLto for ear. (►) 31 as{na a •aI of late rm 1 n sd bj S'aa'a rd T ry c3 Laa d i as. Oth a ri t" tb* 3 tan 3a rd Lan& Los di aS 1v.trnd. } CALCULATIONS ` �—� �.csCuJ _ �� Vic.. �u►�Z Z O r� �� e � 17.�`3 �o o 1 ,Q 20� cr 2odc-` 3-Z,31- vo 0-7 , G�b C-,-,v VI-IL � l . o�_ � C�ram. �►, ��' �-�� • Ann - l �o <<< L Prt,�Cr- � o �z�•o7 �v29.10 �SZS,o �z4.o�. Ll w Is It9, l O -7 •S'� i 2z. Ar 2-S �L, = 84: oc).(Oij -7) (I ��.. q-7z � 1� 1 � 2SCxj�� zQ IVY Aw cam" �✓ z VI lGoo r'o`] (o as id. Sao 2 4 l z C2.-�� ,5 (--2 2 A eo �7 4- SO) CL ev - PCVL(�j C� 11 *r .o0%S 10 _ , mc,::)tS Y IF c1i' r !� do cr any; ( _ 2 60 _9 -d' v CIVIL ENGINEERING DATA W -k 1 � f- 32s --- a I 10 N I 1.5' SIDEWALK i— !^ —J — EASEMENT O � Q ' r•r ' 1.5r SIDEWALK o .EASEMENT Z I 7 n g 8 Z _ 0 z 'l SEWER ESMT EASEMENT \ / i 25' DRAINAGE \ / INLET CRATE I a \ / — 10'-12" sD O 0. 87G EASEMENT —RVt325.25 - - -------- N 88'15'15* 'N 78.25' A ; N 00'31'03' E -. 20.00' N 98�5'15' W 292.48' IN =318.03 61 a' VENT1LA110N C8/ 8. TYPE II 48* ♦+5B PIPE W/ SCREEN 12' '3RAVEL STA. 4+25. 15.22'R pRC ACCESS ROAD DETENTION VAULT DRIVEWAY RIM:327.70 CONTROL STRUCTURE TO CONTROL 20'x5.5'403' !Y FROM PL INV�1,8.07 RELOCATE .SIDE VAULT STRUCTURE _PRIVATE SYSTEM a VAULT SHALL VENTILATION UTILITIES I I CONTROL MANHOLE BE 4' RI14s325.00 _THE I PIPE W/ SCREEN AS NEEDED. TYP. ` '- •-c I i'4V�318.03 I DESIGNED/CONSTRUCTED 0/F-322.53 TO-SUPPONG RT SHEETIC4 0 I I FOR DETAIL I PT = + a �9/1\ 4' STEEL VENTILATION 203' WEIR PIPE W/ SCREEN, TYP, SEE PRIVATE ACl;LS' CUTOUT FRAMES, GRATES AND ROUND SOLID COVERS ROAD SECTION MARKED "DRAIN" W/LOCKING BOLTS. WEIR DETAIL OVERFLOW DEP SEE DRAWING NAME BR29 NTS RIM-325.00 INLET GRATE — RIM-325.25 RIM-326.50 �%' RIM-328.10 36' 36' 36' ® \� WEIR CUTOUT P CEILING 3' �. ELEV.•"323.Os - W.S. 0 LOW 322.53 FLOW RESTRICTOR ELEV-321.03 6' R00 DRAIN STD. GALV. SIL (FROP-T SHOWN) ORIFICE DIA.=1 9 16 r INV=3.222.53 SEE DWG NAME BR-04 CELL PARTITION / o F12" SD TO BIOSWALE FL 0 ELEVw �� 0.5' DEAD 53 - STORAGE 12" 12" SD ROM CB# 8 INV= LEVEL - BOTTOM 12" WALL FLANCi FLOOR GRATE WITH 2'x2'HINGED ACCESS DOOR 19/32" ORIFICE (TYP.) r 0%1/ BARS) GALV. METAL I S 03 SEE SP PAGE 8035 INV=J18.03 3 NOTE: ORIFICE DIA=19/32" 4' MIN 03 THE VAULT SHALL BE DESIGNED/CONSTRUC 3 NOTES: �Z TO SUPPORT H2O LOADING. 1. PLANS MUST BE DESIGNED do STAMPED BY A REGISTERED PROF. STRUCTURAL El PVISTA0+50 2. ALL METAL PARTS: CORRSION RESISTANT. STEEL PARTS GALVANIZED & ASPHALT PVI ELEV 325.00 COATED (TREATMENT I OR BETTER). A.D. _ -2.61 3. PROVIDE WATER STOP AT ALL CAST-IN-PLACE CONSTRUCTION JOINTS. K - 38.38 PRECAST VAULT SHALL HAVE APPROVED RUBBER GASKET SYSTEM. DETENTION VgU 100.00' vc LT N.T.S. $ + O N I r� SECTION A-A .E PRIVATE ACCESS )AD SECTION REMOVABLE WATER- TIGHT COUPLING. CEILING ELEV.-323.03 } -- STD. GALV. STEPS OR LADDER �I FILING ELEV=323A3 1 PLATE WITH 6' MAX, 20' E AS SPFC.CBELOW ELBOW DETAIL N TS JD ROM CB# 8 FLOOR ELE V=317,53 WALL FLANGE (TY'•) THE LGi'. 1NV=318.03 STAIJILI I END SECTION THL h 1 M;u. =D/CONSTRUCTED r,.7.s. 3 A,I,` 4 M AI. 5 MAk 50 5.00 •ANY' . LICLN`. CITY 1. RUl NL 80T1 C, ROCKI dOT TJ, o + C � N M GEOTECHNICAL DATA --- - �L $ SHEET L OF 1 - r'R0. FCT CA of RviloNzE At ; F 3(�' DATUM: gads x•nnyaal-&WA PROJECT NlJMBERt 9$3 1001 BORINQ LCCATiON, 2717 NE 24tA St BORiNQ DXM 1/1"S rsrsrwr+ow 90� L aP►nt PKC DH1iInON c7F7TH s0 3�erM+/ y�,r A VN t EV6i IICM.nd UM brv�wl.Kk �A77 iP $w%d(OVI' "M) 00 i,yq ti 14lI{ I W t V4 �..akrw a,erso, .�a i�rv►s►+1 *A � a 00 7.7.11 Is IV►` sow*wv 140t '• Is 9 i ao 1 n I � 30 C lao*" anuJa CC%-rRACTM= o•�w ° r At4ao grata_ q-. 60AA Karxzyd&—&I YA PRojec"T NUMBER: 333 1001 13CR N® LCC,=CN: 2711 NE 24th St as ,� Sao,lca.oo.rss land.tsar tit. .; . t 00 r� C�r,Waot -Sd pirgy arvw+t r st %od.fVw t'cor* . to X�t �t,�a�v,ems.�t �•� ,. w doom ta0 j u � 70 i , 1 i MISC. INFOPAATION 121/2" HOLLOW CORE SLAB � ) Y-10''t I.MENSIONS s• 11 ,2. „',Z• 11�;:• s• ,;„• -OR DETAILING (� I 1 08 N � 17/,e 11• il�h• I il�h• il• 1�/,6• 3'-11'Y ' (4'-0'Ncmiral Wiath) SPAN-LOAD TABLE ALLOWABLE SUPERIMPOSED LOAD in pounds per square foot Effective No. of SIMPLE SPAN in feet Prestress 1/2" a (KIPS) STRANDS 28 32 36 40 44 48 52 56 60 \ 70.7 3 78 44 20 77.7 4 126 80 49 26 T01.3 5 174 117 78 50 27 124.8 6 221 153 1 C6 70 43 23.- 148.4 7 267 186 129 89 59 36 172.0 8 307 216 153 103 74 49 29 195.5 9 343 243 174 125 89 61 40 23• 219.1 10 378' 270 195 142 103 73 50 31• 242.7 11 413' 297 217 160 117 85 60 40 24r SECTION PROPERTIES (with shear keys grouted) A = 313 in2 Zt = 1019 in3 Zb = 947 in3 m = 84 psf = 6136 in4 Yt = 6.02 in Yt) = 6.48 in NOTES: 1. The values given in this table are based on hollow core slabs without shear reinforcement. Superscripts(1,2.etc.) following values in the table indicate the number of filled voids required at the ends of slabs to develop the allowable superimposed load.See page 2. 'SHEAR'for discussion. 2. asterisk(•)following values in the table indicate that-the total defection under all loads is greater than U360 but less than U 130. 3. Interpolation between values is acceptable. Co rot extrapolate values into the blank spaces of the table. l 4 These Span-Load Tables are intended as an aid to preliminary sizirg.Sound engineering judgement is required for the application of this information to specific design cases. . . . . ,:.� . ,-,�....�,-,.. .-.r- nnr( Tf'1P(`[+rr1 /`/1�1/'`n�TC • T�(`rl\1 :� ,1/ �C�-IIf��TnN 11,'3� LO N •<� K 09 -L;10 4' MIN. O Re 0 _ —_--- :;0 -- — ---- rn fn rn to rn ----- _ r fTl rn O Z — Q) z ? 40 � o Z v -< D � o o o Z o g 0 The use of thews plane and specifications @hall be restricted � � to the original purpose for which they were prepared. Any reproduction or distribution is expressly limited to such use. Any other reproduction. reuse or disclosure by any method. In = D whole or In port. without the written consent of CTC Is prohibited. These drawings and specifications contain proprietary Information and title remains In CTC. • PROJECT DETENTION VAULTS JOB NO. CONCRETESUBJECT i SCAN-LL1 �D BY_��OAT ,t�HNOLOGY L,�J �, 5(�IL(� Cf 4AT< " SHEET J OF CORPORA1lON WX N soi Ca U�'' ��'-�) 120 W� HS20 0 /00 . 14 N07E5 I. No CorCre,* -Top pin�( 2. NO Try ffic 1 kyt Oact 2 3. Coran-tAgd Lands -D&h- 6 vfia over InAx• of sla�,�s & ro o Vw arm p& AA514TO/6 .4. 4; In ahsinCz &Y soil Covers 8 To. r is rzCom��d I APR 4 8 1996 2 12.12- Erich ULTRASP 5 2.5 30 • CLEAR SPAN - - - — -� � _ . ,-,- . , , �.. � � T� �r�►.� +,"rc oPd71 (2�F) 383-3545 rj 3t � �4,✓ � t t:? rI s�f�J: sneer❑o Miles Consulting cta-oxz 1806 136th Pl., NE #200 iocation3kP Bellevue, WA 98005-2319 ehen, checked dare DETENTION TANK DESIGN: Design loads are for the actual dead loads and HS20 vehicle. Soil Load Depth is determined to be Civil Engineering Plans. Construction should be in accordance with latest edition of UBC Section 108 and should include; 1. All concrete work phases and strength. 2. Provide special inspection by Geotechnical Engineer confirming assumed soils parameters. 3 . Any fill placed below footings or slab has sufficient compaction to at least 95% ASTM D-1557 . Prior to excavation the Contractor will determine if any underground utilities exist in the area of work. Tank foundations have been designed based on; Allowable Bearing 2500 PSF Soil Weight 110 PCF Active Earth Pressure 35 PCF (Retaining) Active Earth Pressure 50 PCF (Restrained) Passive Earth Pressure 250 PCF Coef. of Friction . 40 (SF= 1.5) Foundation excavation shall extend into undisturbed soil. Should filling occur it will be place to 95% compaction and shall be inspected for adequacy. Back-filling of the walls shall be accomplished using a free draining material. When required, a sub-drain should be installed to carry away any local ground water which might accumulate in the back-fill or pond behind wall. Raise fill evenly around tank to prevent overloading walls at any specific point. Concrete construction for cast-in-place concrete shall be inspected and tested. The concrete shall attain a minimum 28 day strength of fc '= 3000 psi. Use of add mixtures shall have Owner approval. (Strength required to back-fill. ) Reinforcing steel shall conform to ASTM A-615-68, Grade 60. Lap splices shall be a minimum of 30 bar diameters. Fy= 60,000 psi. All horizontal reinforcing bars in walls shall be lapped around the corners. The reinforcing shall be protected by minimum cover as detailed on the plans, or when not detailed per UBC Concrete Construction. Any welded wire fabric use shall conform to ASTM A-185 . Pre-cast prestressed concrete planks shall be designed and detailed by the Manufacturer. Shop drawings shall be provided for approval prior to fabrication. Design and fabrication shall be in accordance with the Manufacturer ' s calculated data. Approved shop drawings, handling and erection details are to be shipped to the job site with the prestressed planks. 22 HtGH'NAY 9RIDGES 3.10.1 14SZS-44 IC,,11a0 1-$S 40,ko LBS 40f CBS IHS20-44 3,000 LBS. 32,000 LBS.* 32.000 LBS:V •HS15-44 6.000 LBS. 24,000 LBS. 24.000 LBS. �„I mt �• v o o1w oary oaw W COMBINED 'HEIGHT ON THE FIRST TWO AXLES WHICH IS THE SAME AS FOR THE CORRESPONDING H TRUCK. V VARIABLE SPACING — 14 FEET TO 30 FEET INCLUSIVE. SPACING TO BE USED IS THAT WHICH PRODUCES MAXIMUM STRESSES. CLEARANCE AND LOAD LANE WIDTH 10'-0" CURB 2'-0" g -0.. 2,-0., Figure 3.7.7A. Standard HS Trucks 'In the design of timber(loon and xLhotropic steel decks(excluding transverse beams)for HS 20 lcadin& axle lead of 24,000 pounds or two axle .Dads of 16. 00 pounds each. spaced 4 trit apart may be used, whichever?roduces ttte greater stress,irstead of the 32,000-pound axle stjx+n. "For slab lcsign. .Ce centcr line of wheels shall be assunsed to be I foot from face of curb. (See Article 3.24.2_) Ila HIGHWAY BRIDGES App. A LOADING - H 20-44 • TABU OF MAXIMUM MOMENTS, SHEARS A` i) REACTIONS.-SIMPLS SPANS. ONE LANE Spans in feet; moments in thousands of foot-pounds; shears and reactions in thousands of pounds. These values are subject to Specification reduction for loading of multiple Ianes. Impact not included. >rnd.1+rar End.b me and ens and end SDen moment . r Span Moment reaction (a) reaction (a) 1 ....... 6.0(b) IY.0(b) 11 ....... 365.9(b) 19.E _ ....... 16.0(b) 32.0(b) 46 ....... 385.8(b) 40.1 6 ....... 24.0(b) 32.0(b) ti ....... 405.7(b) 40.1 32-0(b) 82.0(b) 13 .... ... 125.I(b) 41.6 ....... 60.0(b) 31.0(b) SO ... . ... 11S.6(b) 42.0 6 ....... 13.0(b) 32.0(b) 62 ....... 465.5(b) 42.6 1 ....... 66.0(b) 12.0(b) 56 ....... 185.S(b) 43.1 S6 ....... 605.4(b) 0.9 0 ....... 14.0(b) 32.0(b) S3 44.6 1 ....... 72.0'(b) 12.0(b) 1 . .. . ._....... 530... 636. 4S.! 10 ....... 30.0(b) 12.0(b) I1 5e.0(b) 22.0(b) 62 .. ..... 536.6 45.6 11 ....... 96.0(b) 12.0(b) 61 ... . ... 615.7 16.6 IS ....... 104.0(b)) 12.0(b) 1i ....... $45.6 47.1 16 ..... .. 112.0(b) 12.0(b) i6 ... .... 675.9 47.6 16 120.0(b) 12.S(b) 10 707.6 /3.4 li ....... 12S.0(b) 33.0(b) . 16 .. . . .. 787.E 60.0 17 ....... 136.0(lb 17 4(b) 30 .. . .. .. 372.0 Sl.i 16 . .... .. 1/6.0(b 13.8(b) 960.6 $3.2 19.. ... 162.0(b) 14.1(b) 30 ....... 1,053.0 3/.6 20 .... ... I SO.0(b) 14.4(b) 1S . . . ... 1.149.6 $6.6 31 ....... 116.0(b) 14.7(b) . .. .... 1.250.1 is 1 12 176.0(b) 34.9(b) lie ....... 1.463.0 611 I1 ....... 184.0(b) 36.1(b 121 ....... 1,692.0 N•� 14 ....... 192.0(b) IS.3(b) 111 ....... 1.937.8 $7.6 16 ....._. 200.0(b) U.6(b) 111 ....... 1.191.4 70.6 16 ....... 208.0(b) 1S.7(b) ISO ....... 2.475.1 7/.9 t7 ....... 214.9(b) 13.1(b) 1W ....... 2.768.0 17-2 tl ....... 226.3(b) 36.0(b) lie ....... 1.077.6 30.4 11 ....... 23M(b) 14.1(b) 150 ....... 1,102.0 93•6 30 ....... 216.$(b) 16.3(b) 1 i0 ....... 3.743.8 K•6 11 ....... 256.9(b) 16.6(b) !?0 ....... 4.100.5 We 11 ....... 266.5(b) 36 S(b) 2:0 ....... 4.362.0 19.6 It ....... 176.4(b) 36.6(b) 210 ....... 6.698.0 102.E 14 ....... 184.3(b) 36.9 150 ....... 6.571.0 109 2 16 ....... 296-2(b) 37-2 130 ....... 7.532.0 116.6 36 ....... 104.2(6) 17.5 300 ....... 8.550.1 122.1 11 ....... 316.1(b) 17.6 11 ....... 329.1(b) 18.2 11 ....... 336.0(b) 3s 6 i0 ......: 316.0(b) 13.6 (a) Concentratrd bat Is cone dared p'_x -d at the eipPort Loads =ed are tbcse rt1puUto for & ear. (b) Masimzsa Truck Loadins. Otherwise tse-3tu+Urd Lanz Los dlnt gorsrtdL- CALCULATIONS 20� S2 ono PL Lc- 1 3z4.o-7 -q 4 , Tel Its, t v CI 0. 54 I = ��za L L. C�i f Jam.. J r - Rb co 10 N �i`?.5� 10 r t 80 C nn, ►� �' ) ��.(,`1� <► �.��oJ = d C10,(o�)Cl, �150� = 1 C000 W(�,LL (S,$ ) C��`1 ( IGo) � �j�� (5.5)C,fo1, ay� /Dwvb 9 (0 id. Sao 4 l 2 S (G.5,2 -72 1�7 (VA7 (I A30) cL 11-57 1 �K Y � l c1�/ r e� FL LO L r�j c �7��F'l.,u�, �.J��L . � �,��,03 .-�-- ��, �w �� zap .� 3�� ,�� 2 ��i�� . � � -9 _ � � - �n � � V CIVIL ENGINEERING DATA Lu Z 1 32'-t2' 0 '4.53x 326 1O 1.5' SIDEWALK ' 1 EASEMENT c � Q. i �•. �. i i_S SIDEWALK ' EASEMENT 6 Ul la' 8 7 n$ O '4HYDRANT O J ♦ / ♦� /45 SEWER ESMT EASEMENT ♦ / « 25' DRAINAGE ♦ / INLET CRATE `J r!s ♦ / C 10'�12� SD O 0. EASEMENT —RIlA=325.25— — _—— ——— -r+ — __— — N 8875'15' W 78.25* _. N 00*31'03' E 20.00' 0.5. 75't5' W 292.462 IN N 88 -318.03 9� I 4' VENTILATION CB/ 8. TYPE 11 48* 4+SH' I j PIPE W/ SCREEN t 2' tAVELJ STA. 4+25. 15.2ZR 9 I ' ACCESS ROAD DETENTION VAULT DRIVEWAY RIM:327.70 CONTROL STRUCTURE TO CONTROL 20'x5.5'x203' 5' FROM PL INV-318.07 INSIDE VAULT STRUCTURE _PRIVATE SYSTEM RELOCATE I I CONTROL MANHOLE a VENTILATION UTILITIES RIM-325.00 -THE VAULT SHALL 13E PIPE WI SCREEN \ INV-318.03 ( DESIGNED H OS OACNO I AS NEEDED. • 0/F-322.53 i0 SUPPORT SHEET C4 FOR DETAIL I PT + 4 I \ ~ 4' STEEL VENTILATION 203' WEIR PIPE W/ SCREEN, TYP. SEE PRIVATE ACt;LS CUTOUT FRAMES. GRATES AND ROUND SOLID COVERS ROAD SECTION 9 MARKED "DRAIN" W/LOCKING BOLTS. WEIR DETAIL OVERFLOW DEP SEE DRAWING NAME BR29 ND RIM=325.00 INLET GRATE - RIM-325.25 RIM 326.50 2% RIM-328.10 36. 36' 36 CEILING 3" WEIR CUTOUT ELEV.-323.0s - W.S. a 0 - LOW 322.53 FLOW RESTRICTOR ELEV=321.03 6- ROOF 'DRAIN STD. GALV. 5IL (FROP-T SHOWN) a ORIFICE DIA.=1 9 16 IN®2.53 SEE DWG NAME BR-04 CELL PARTITION 3 03 un / o vi 12" SD TO 810SWALE FL 0 53 EVm 0.5' DEAD STORAGE 12" 12" SD ROM CBIy 8 INV= LEVEL - BOTTOM 12" WALL FLAN6L N FLOOR GRATE WITH 2'x2'HINGED ACCESS DOOR 19/32" ORIFICE (TYP.) ^� z (I"xl 4" GALV. METAL ® �' 18 03 SEE SP PAGE 8035 iNV=318,03 BAR46 NOTE: 3 ORIFICE "DIA=19 32 �?' " � 4' MIN I 03 THE VAULT SHALL BE DESIGNED/CONSTkui:_, 114 . NOTES: TO SUPPORT H2O LOADING. 1. PLANS MUST BE DESIGNED & STAMPED BY A REGISTERED PROF. STRUCTURAL ENGR. PVI STA = 0+50 2. ALL METAL PARTS: CORRSION RESISTANT. STEEL PARTS GALVANIZED & ASPHALT PVI ELEV - 325.00 COATED (TREATMENT I OR BETTER). A.D. _ -2.61 -IN-PLACE CONSTRUCTION JOINTS. K - 3 3. PROVIDE WATER STOP AT ALL CAST 8.38 rhj PRECAST VAULT SHALL HAVE APPROVED RUBBER GASKET SYSTEM. 100.00' VC DETENTION VAULT � g o /�•`� N.T.S. + O N I r� SECTION A-A m M .E PRIVATE ACCESS )AD SECTION REMOVABLE WATER- TIGHT COUPLING. CEILING ELEV.-323.03 STD. GALV. STEPS OR LADDER FILING ELEV=323.03 PLATE WITH 6' MAX. 20' SPcC CBELOW ELBOW DETAIL N TS 3�DROM CB# 8 FLOOR ELEV=317,53 WALL FLANGE (TYP•) THE LUh, INV=318.03 STAUILII END SECTION Tr,t h N.T.S. 2 MAi,. =D/CONSTRUCTED 3 1viAN 4 MAI, 5 MAk J0 •AfVY' 5.00 ;1 LICLN`. CITY 1. RUi;KL 80TI G. ROChk_. 80110. 0 0 o + U') GEOTECHNICAL DATA — -- - - - - - - �L 3HEET 1 OF t'ROJcC1' C•;ty Of r��r;:ar Casts�.► Ji 3 Oe �("�� $ K#mydC*oWA DATUM: c3rads pROJeCT NUMBER: Sa3 1001 BORING LC=ON- 2717 NE 24th St. BORING DAM Ill a 98 9M apAPKC n� v OB IIIT�GfI `� i9 a y�r -�VA lIcV6C IINf.rsd co"Wwn. Sid m�Sum �A �Md tOUm'e1�N) 00 =44 We R up-$ LrV+10.sw+�s OIT WAW am -?i-< t 30 {11.11 ri un R •'I co,00e�o"row^a wwsxiiieo.N•s of JW XoW doM 11 0+e - 30 26 f i 1 c 340040 oaLL eaa: � d a, Heel: vikve #Cimyd&l*/WA pROJECT NUMBER: 9$3 1001 80RtNC3 LCC=CN: 2711 NE 244hSt •� ,Wft COW""M !rph 00 a �d (CUTW .$.'fist��4 bra ;fA ` t so }11-tZ $3 ism I71RM/II V^��1 iaf1�jW 7s�'�'•� `t'r'l_1'S•\q1 00 7a7-11 xc,w dhom 14 0 it u � i 30 i i MISC. INFORMATION 121h" HOLLOW CORE SLAB ) Y-loft' DIMENSIONS s. ,;x. 1114, 1111le b• e ,-OR DETAILING f tt• tt�/x• I ttiz• tt• t7/1e• ' (4'-0•Nomiral Math) SPAN-LOAD TABLE ALLOWABLE SUPERIMPOSED LOAD In pounds per square foot Effective No. of SIMPLE SPAN in feet Prestress 1/2" s (KIPS) STRANDS 28 32 36 40 44 1 48 52 1 56 60 \ 70.7 3 78 44 20 77.7 4 126 80 49 26 101.3 5 174 117 78 50 27 124.8 6 221 153 106 70 43 23.• 148.4 7 267 186 129 89 59 36 172.0 8 307 216 153 108 74 49 29 195.5 9 343 243 174 125 89 61 40 23' 219.1 10 3731 270 195 142 103 73 50 31' 242.7 11 413' 297 217 160 117 85 60 40 24' SECTION PROPERTIES (with shear keys grouted) A =313 in2 Zt = 1019 in3 Zb = 947 in3 w = 84 psf = 6136 in4 Yt = 6.02 in Yb = 6.48 in NOTES: 1. The values given in this table are based on hollow core slabs without shear reinforcement. Superscripts(1,2,etc.) following values in the table indicate the number of filled voids required at the ends of slabs to develop the allowable _ superimposed load. See page 2, 'SHEAR'for discussion. 2. Asterisk(•)following values in the table indicate that1he total deflection under all loads is greater than LI360 but less than L/130. 3. Interpolation between values is acceptable. Do rot extrapolate values into the blank spaces of the table. 1 4. These Span-Load Tables are intended as an aid to preliminary sizirg.Sound engineering judgement is required for the application of this information to specific design cases. n .rrTnre,t�rr�j r_TC s Tit-nNIN A }PINIr.TnN 11,3! w P v .r m. N -<C) '? 09 � t�t C-) 4" MIN. O m Z -p �- m m I �; T+ C7 � ---- • rn r m z - --------- OZ — cn mZ z � o � o Z �7D � CO( D i O . o Z OZ G I V g v C i The use of these plans and specifications shill be restricted P to the original purpose for which they were prepared. Any � D reproduction or distribution Is expressly limited to such use. Any other reproduction, reuse or disclosure by any method, in = D whole or In port, without the written consent of CTC Is prohibited. These drawings and specifications contain proprietary Information and title remains In CTC. PROJECT DETENTON V`UL-TS J0B NO. F7' - COhCRET� � SUBJECT BY DATE DAT 1 15 5 �tCHNOL lON 1=�.�y��J��..�� G' 4A�� SHEET —OF 1 CORPORATION J�1A�c. N 12D 0 14 N 07ES 1. No Coil cro* 70ppin,4 2. NO Try f'r6 l hr naot 12 3. Co r an-t�ftgd Loads over mAx. of 2 slams & ow area p& AAS14TO16 .4- 1 4: �n ahs6r a off' soil co v&Y fn/ Im Uim As w - 8 To is rgammgiide . D` D l� j� LRI APR 0 8 1996 2 12,12- I rich UL7RAS� O _ 2-5 �p . 1 5 20 2-5 30 CLEAR SPAN -- _ _ _ , � � . , . �.., � r. T� �n►ae \�.la opd�� (2nF1 38'?-3545 July 14, 1997 Q Mr. Shupe Holmberg P.E. a Baima& Holmberg Inc. 100 Front Street Issaquah, WA 98027-3817 Dear Mr. Holmberg: SUBJECT: Proposed 19 lot residential subdivision of Honey Creek Heights storm water infiltration system and percolation testing results. N.E. 25th at Ferndale AVE N.E. Renton. On Friday, June 13, 1997, percolation tests were conducted on the above-subject plat. Those tests were conducted in accordance with the Design Manual - Onsite Wastewater Treatment and Disposal Systems, U.S. Environmental Protection Agency, October 1980. According to your instructions, those tests were conducted in a 202 foot by 20 foot wide strip of land which runs north to south, along the southwest side of the subdivision. A copy of the Preliminary Plat drawing in enclosed which indicates the location where those percolation tests were conducted. A copy of the infiltrative rates appears at the bottom of this report. In my opinion, the infiltrative rates, as determined by these percolation tests, were not representative of anticipated infiltrative rates in this area. Soil conditions in much of the greater "Renton Highlands" is medium to fine sand. Soil conditions in each of the 3 perc test sites were more consistent with type 5, 4 and 3 soils, respectively, as defined by the United States Department of Agriculture. A further definition of these soils, and their respective characteristics may be obtained in Appendix A of the Design Manual. Test numbers 2 and 3 were excavated to a depth of 56 inches. Test number 1 was excavated to a depth of only 48 inches due to the presence of a dense silty clay layer which restricts permeability. Soils at the infiltrative depth were found to be mottled. They were distinctly mottled in test hole#1, with ribbons of silt. In many cases, the presence of this mottling may be an indicator of winter time soil saturation. Based upon the predominant soil conditions of the area, I believe that this is only a "relic" mottling condition and not an indicator of seasonal ground water saturation. Shupe Holmberg Percolation testing report - Honey Creeks Heights subdivison Page - 2 - I trust that this report will satisfy the concerns of the City of Renton. Should there be any additional questions, please call. I will also make myself available should it be necessary to "demonstrate" percolation values to the engineering staff of the city. Depth Infiltrative rate in minutes per inch Percolation Test# 1 4811 64 p t Percolation Test#2 56" 23 Percolation Test#3: 56" 6 Sincerely, BAIMA ENTERPRISES Steve A. Baima Drainfield Designer King Co. License No. D0036 Master Installer King Co. License No. MI098 cc: Clint Morgan, City of Renton W li 1N Yls# ��71Y yl�111 �r �► • HONEY CRi . uj - • V ii r• r• I r. ►r►I y r• 15, EXIST. HOUSE i W N 8875'36" w 70.64' 50.01' 50.01' ' a _ 20 UTILITY W �---_ �_ -EASkMENT-" -1 I` _ - _ _ l I- - - -- -- -l (- cl o I 19 � _e t AWN 18 sir- a 17 Q 16 W 00 i '', ► � I ' L 8.92' ,a. 70.19' 50.01' ` 41.11• .. .._..� _` , nr N 2 N 8815'10" W 161.31' N. . 25TH. T An N N.E. 25TH ST 18r579 _ R1� v 20.46' 50.01' n 50.01' 4JM62' I r L 49.42_ _ I ' � 'W I 4•' I � .I ' � �� •. n r• r. ►• ►r►r �. ►• 1ro7 2 ` 1` M 3 oI - .... _... __ - - _ l_ - - - - L •. W 04 • N 88'15'10" W o Q 50.01' 50.01' 50.21' 67.93' o -w 53.48' 52.34'32e 52.34' 60.01' r� C4 Q - - - '- - -- - b Of L - - - J 12 -� - _ - I 01'�• 60.01' - - - -J - - -- -- -� 52.34' 26.21' 86.02' 78.55"' o 0 I L TRACT 'S' 20.00' 131.60' cw N 86.58' + W it t r N 88'15' 5' W 280.69' I a 3.168 sq.ft. p m 16'03'36' • R w 100.00' L 28.03' P.wig►+ p - 17'17'18"• R - 100.00' ' -r :: •; h I Tom_ O -- - N.E. 24TH ST -TOTAL PARCEL AREA 123,507 sq.ft. �T PROPOSED NO. OF LOTS' ' 19 LOTS ' PROPOSED.ZONING. 8 DU/ARCE (R--8) PROPOSED SQUARE FOOTAGIES' OWNER BOB COLWELL LOT.1• 4.500'sq.ft, - LOT 11 4,680 sq.ft. 2625 NE 27TH ST 2 4.500 sq.ft. 12 5.256 3q.ft. RENTON. WA - 3 '4,516 sq.ft. 13 8,128 sq.ft. (206) 228-2473 4 4.840 sq.ft. 14 5,107 sq.ft. 5 5.159 sq.ft. 15 6.064 sq.ft. LAND SURVEYOR BAIIAA & HOLMBERG INC. 6 ' '4,658 sq.ft. 16 4,825 sq.ft. 100 FRONT STREET SOUTH 7 4.814 sq ft.' 17 4.706 sq.ft. ISSAQUAH. WA 96027• 8 6.630 sq.ft. 18 4,704 sq.ft. (206) 392--0250 9-, 4.512• aq.ft.. 19 6.391 sq.ft. FAX (206) 3QI-3055 10' .4.52E aq.ft. PERCENTAGE OF LAND IN STREETS 18.38X 07/16/1997 0B:29 3913055 BAIMA HOLMBERG INC PAGE 02 43R ' ' SE nu+ PL z ~:A 11200 11600 r aisT sE PL I � uj IL UD CT AYIt SE 84TH Sic. N ST v> . SE 85 E BSTNPL R - EK PL C3 , eD >: G SE �j` SE 87TH ST 00 ST 8 7H , a S'[' 4 1600 I�. �'" p ST.' .o ,ti cam; A 89TH ST SF � ',► '�PL =90TH SE g ,12200 I 92ND ST SE� 4 LL g5 �2�00 r S ST SIERRA ` YY nn sE 99TI+ ST HEIGHTS 210o l7�. Yf.� �a ny : O W.. •� Q PARK J N 10 H ST It _ d SE 102ND ' ;A tir ST LO SE. .103R2D ��^, SE 204� 3rn :ST- °� x �+ 400 12900 5T . NE '21ST : x F- -¢ a " P w 1 0 �. W�. NE zlsr s[ w £�� SE 057H a, cwi) { Zia w 00 : NE '20 SY a r �.�. •s ,. u :' _:W .�' L E 06TH ST NE KE lgsx Pl - :'} .4 Y'NE 19T SY !!II�� 3:: - i -AIE .ST y PARK S� >ME� - PV ju PA wc 14C -� Sj NE<4TM -x7 r KID .� ... 13Slt xGO T 07/16/1997 08: 29 3913055 BAIMA HOLMBERG INC PAGE 03 i No .` � : M -AgC KpD�� 4t I ♦ I ' I AkF a g — s �B ! Kns I gh y I-' 854 B :e b n xf w Al.F C. •� t Agc AmC P Etc AsG m BM Pleasure B 20 'g I BM 22 Point 21 • S Pr__ ' nG�=• •' M f 6 2 ABC j Ur AmC \-- /awl I : ARC y AkF Y - gn I AkF M! 8a Kpp--- .zr 29 •Agc - V 42 A8 r KPB` C • ,in Newpo Ag° UT Hills S�c InA �; �. ' ACC - - U Ur -h Evil W i mC I m ' KPDsw . B!c Ur 6 M �' �9 Newc I k Ago•�^ 3 f oC jJ BM r I�9vC• •tC AgC Amc 6h Ag ., ±;• AgC Miy K;- I EEC ir, r OvD �q g Agp` BMA pglg 690 692 A No ti ' AS rn I. •'AgC C 1 BMP6 4D I ♦ r O l I 605 Sn ,. BUC ABC Ate T. AgD � �' Agp �`I �♦c � 34 . As AgC �! �� •I� H Kennydale - .. •,' I• :. -Inc AkF 1 I AkF - ACC Ev6 AkF EvC an POIn Q Py In �•_ __ AkF — I �e T �` A✓'C rwil IN Fv /� . . fsgC Ae _ = 7 : ✓• a -- _ n .BM v - m LI 12 STORM OUrFAL.L Q 1 TO NE 271N ST, LU DO S 7. HOUSE u H 8815'3v w ]70.71' Q Q 20\U nUTY ` W — EASWENt 15 14 2 LU $ _ STA17, R 1.� LL c W C8/1 STA C+02, TYPE I _ST[�� 0+05, 25'L - N Y-]2l. J } RIM - 52305 i RIII'.�323J _32'-ti 3 O �T1 _ �_NY.3I0,16, INK3i7:75'- __ _.._..�, 2 `� — r _ - N. 25TH T N.E. IM 8T 1 STA 0+01 $a0' 2' O a.M R8! . 32105 ST "320.00 \ STA3 1+81.3t , ....,:Y. RiM 325.54 a3'-12' 1 Nv,�:317, INV.319.34 0 0.3ax V ... ROGKCRY J , coos 4 1 MAX MIECNT a' STA 2+40 RIU . 376.19 Y car 4 NV . 319.14 STA 3+16 24t1 Rimv 'no �3'•12' O 0,3aR wy - 322.0 rr.3.r IN+•� � 522,0 Ln n' CD 1-4 Q'r IN; I 326.79, * INv ]1a 9D `\ 10 .1 aoswALe 1so'�Iz' oa]a C14 TV) ,90' 0 0.25x � °7• co 6A cr CTILo -----J ` - � �_ f .�EVICT..��,"r,• - N eays'ts• ,x o m Nf(�7A 0 N ba15' S' w 2a0.69' ' o- 00']t'O3' E f ro CONTROL STRUCTURE Nv.71B.a5 20.00' ! INS10C VtULrr Ca!9 .i ., 07/16/1997 0B: 29 3913055 BAIMA�HJOLMBERG INC PAGE 05 JOB BAIMA & HOLMBERG, INC. SHEET No OF 100 Front Street South �. �, DATE 7fz ISSAQUAH, WASHINGTON 98027-381-7 caLcutATEDar (425) 392-0250 CHECKED 9v DATE 8CALE ..... _ ...._. _. .. ........ .... .. ...... n 1•• .J -7. .. ... ... ... .. ..... .. ......... ... .... .. / d 4- ,q �. ..... ..... �... a • . .... �p . .p 1;� .._ . .... .. .. . . .... .... ............b.......... ...... ... .,i. .. ................. .. ... ..... ... ...... .. ... ........ . .......... ... ............ ..........._...._...__;. ... .__.... ............. ...................... 8'� • li. ........... .. _................... . .... ...... ...... 7 .. .............. �d....... , ................. ...... /�t� D ................_.........i.. Qt......`..'.i........t G7�. ................:.. d_...^' .�.�... ._p/O_... .... .._ .. .... ............ ..... ... .. : P a ; ° .... ..... ? s :.. .. 03 >> ........................... ........ .... ..... F .... ............. .. ........ ..... ....... _ .. ............. ..... ..... .._.. Sf�r z of ....._.. A... ........ ......_... o...__.. 07/16/1997 0B: 29 3913055 BAIMA HOLMBERG INC PAGE 06 J0a BAIMA & HOLMBERG, INC_ SHEET NO. DF 100 Front Street South ISSAQUAH, WASHINGTON 98027-3817 CALCULATED 13Y DATE (425) 392-0250 CHECKED BY DATE SCALE ..... ....................... , ........... ..... ,,/ / st F Q v L .... .. d, 3.2, cfzs . ...........::..:......' .......F. .. .. ......... .......... ... ... ......... .............. _..... ... .........................._............................. .... ... ........... ... .... r .... .... ....... .._...._... .... ..... ..... ...... ...... .. . .........._............. ............................._......_............ .._. ... ... ...... .. .. ... ....... ..... ... ..... ... .. ... ...... , 07/16/1997 08: 29 3913055 BAIMA HOLMBERG INC PAGE 07 PRr - D�VELOPMC-- lV7 ------- wwww*wftwwwwwwwt*f * ---------------------------------- S.C.S. TYPE-IA-DISTRIBUTION *wwwwww,r*wwwww+*ww** t******** 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP. *******ww ----- ---------- -------- ------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 ` 2 . 8 75 .0 . 0 98 . 0 25 .3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 - 8 2 -8 75-0 . 0 98. 0 25 .3 PEAK-Q(CFS) T-PEAK(FIRS) VOL(CU-FT) 08 12 .50 3904 www***************** S .C.S _ TYPE-1A DISTRIBUTION *****www***+wwww*www ********* 10-YEAR 24-HOUR STORM www* 2 .90" TOTAL PRECIP_ ****wwwww ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , -TC FOR BASIN NO 1 2 . 8 75. 0 . 0 98. 0 25 .3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 -8 2 .8 75.0 . 0 98 . 0 25 . 3 PEAK-Q (CFS) T-PEAK(HRS) VOL(CU-FT) 32- 8 .00 9165 *************t****** S -C.S. TYPE-lA DISTRIBUTION **wwwwwww*www*wwwww* ********* 100-YEAR 24-HOUR STORM **** 3 . 90" TOTAL PRECIP. ********* -------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(ZMPBRV) , TC FOR BASIN NO. 1 2 -8 75 .0 - 0 98 - 0 25 .3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 .8 2 . 8 75. 0 - 0 98 . 0 25 .3 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 62 -1 7 .83 16294 froo i 00 m w J Q I f 12' STORM OUTFAU( Tn NF 277M ST. - ?�� 2S.`. ...._ ...... "-`ill .. ...... . ,. ._..,. - ExIST f Z ••' S.tS' . M0175E ; MIS 6N all5'36" w 370.71• % a W 2o�unuTY E-AS;MENr o, 1 jco ce $ + srA 1+61 31 u LL u I R1Y - 32s.S6 STA �,_ _ ST .os, 2.5Y U1v-321 f' g Cokyl,+T�E /�C18��/9 .50 J RIM . 32105 / I R 6( Z 323,7 32'-12'0 SS _ [� ��nv-JaOte. Nv.3177s-.. _ _ - in a 25TH T N. n KLt. 2M 8T 1 �0+01 I / 180 2' O MUM M 12 �,. ntv+3z0.00 j ti STA 1fe1.71 l I Rt1! . 325,56 65'.1Y Q - Wg g,.J17. NY.319.39 O 0.-Mx '1 Z i ROCKERY I ' C805 4 f I WX HIEGMT a' STA 2+40 INVRM . 3 S 28.14 8 CTA73tie.zn RIM c [Ln 63'"•1z' O 0.Pr-3#1 NH. 372.D� cr) Aft Ut '—�-• = c A N - 328.79 / 32'-12' O 9.819 M ! INV- 316.90' 10 �C O"1 BIOStMALE - 11d 12' O 0,36 NCS) O 190' O 0,2" 8 7 � tr m j 22* �o CTI LJO fi1�ACT,' Q ' 9aa7 m ^Nv-v38.0 N dad S' S' w o D— fe C0+(1ROl SIRUCIVRE INV.Stb,fS N �D 003'E I i IN'MC VaLKr1 07/16/1997 08: 29 3913055 BAIMA HOLMBERG INC PAGE 09 JOB BAIMA & HOLMBERG, INC_ SHUT No.3 OF 100 Vront Street South ISSAQUAH, WASyHINGTON 98021-3817 CALCULATED BY DATE ( `425) 392-0250 CHECKED BY DATE SCALE ...... ..... ;.................... ......... 5 s �j�.. .........._.....,...................... .. .. ......^.... ................. .. ............ ...... ..... ............. ... ..... ...... .... .. .....:.......... ............:.............'....... ................... ..... .. ......... ..... ... • ..... ..... .;....................... .....o ... .. ._ [.... / Er. .... ... - .. .........._ .... ..... .. ...._.......t..__..._..a_.................................:.............:. ..................................................._........................... • 1 �p ti .............'..............:............._.................. - ... ........r................_.............. ..._........... .. .... _ J— .. ... ............................. .... ..... ........ ... ............ • ..... ... . . .... 9� . /. /�:.. ..... .' :... . ... ... .. Z ...... ..................................... 5'6 > s y :...... .. -... e ,4 � a ...........:...................... ;.._... ._.........:... :..;.... ......... . ..:. .. : -G i .�_ % .. ... ._... . ...... ...... ....................... ; 07/16/1997 08:29 3913055 BAIMA HOLMBERG INC PAGE 10 JOB BAIMA & HOLMBERG, INC. SHEET No OF 100 Front Street South ISSAQUAH, WASHINGTON 98027-3817 CAICULATEDBY DATE (425) 392-0250 CHECKED BY DATE SCALE . 1 ! ....... rs �v,~ I ; r • J ............. ............:..... ..... ............ G N R� ..... .. ..... ...... F......... . ... .. .. ... .. ... .... .... .. ...... ..... .... .. ... .. C . ' ; .. ., ....... ... .. ... ...... .......................... .. ..... .................. ...... ..... rp ............. .............:............... , ..........................L.:....................... . p........._..:............................. ... L. a............. ............................,............. ..,... _.._....._......_.._......................................:.... .. .. ... ............... ......... ...... .. .......... ..... ... .......i........ ...... ..................... .....{..............:...................... ........... .... ... ......... . ............................... ...... .. ' ...........:............a.............:............. ' ...................._..:..:.........l...........1...........:. ........_........_..__............a...__......t."......................... .... .. . .:....:.................... ......_.p........................... :.............. ... .. .. ... ...... i ..._......................L................. ..._. .. .. i 07/16/1997 08: 29 3913055 BAIMA HOLMBERG INC PAGE 11 **************w***** S.C_S_ TYPE-lA DISTRIBUTION **********wt******** ********* 2-YEAR 24-HOUR STORM **** 2 -00" TOTAL PRECIP_ ------------------------- ----- -- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO- 1 1 -3 68 .0 1 .6 98 - 0 5 -0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 -8 1.3 68 .0 1.6 98 . 0 5 .0 PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT) •79 7 . 67 10944 --------R2---------------------- --- ------ ------------------ ---.- ******************** S .C.S. TYPE-IA DISTRIBUTION ******w*w**wt******* **ww*ww** 10-YEAR 24-HOUR STORM **** 2 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 -3 68 . 0 1. 6 98- 0 5 . 0 DATA PRINT-OUT: AREA{ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 .8 1.3 68 -0 1 . 6 98 . 0 5 . 0 PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT) 11 23 7 .67 17766 ----------------------------------------------------------- �!e ******** rr* rr ***t*tf S_C_S_ TYPE-IA DISTRIBUTION **************ww*** ********* 100-YEAR 24-HOUR STORM **** 3 .90^ TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1.3 68 .0 1. 6 98 . 0 5 .0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 -8 1.3 68.0 1.6 98 .0 5 .0 PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT) 1-84 7 . 67 26021 ` 'ob 07/16/1997 00: 29 3913055 BAIMA HOLMBERG INC PAGE 12 JOB BAIMA & HOLMBERG. INC. SHEET NO. Of: 100 Front Street South ISSAQUAH, WASHINGTON 98027-3817 CALCULAT20gv DATE (425) 392-0250 CHECKED BY DAYE SCALE Tr��_L'o IV :... , ....._...... ..... �^ F, '4 _ ..... ....................... o /cv.. . .. T , ell .... 13 Fo o� , P ........ ..... _............. , T :_......... : . , y 5 . ... ... ..... 3 • ..........................._.i..........: . :.................. ........................................•....... . ..........................:.............:........ .. .. • ....... 07/16/1997 08: 29 3913055 BAIMA HOLMBERG INC PAGE 13 PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 1 .84 43t0 .71 �� /.t . 71 4 .00 7744 TEST HYD 1 : 1.23 Qi0 .32 .29 3 .47 �yj� TEST HYD 2 : .79 4� . 0 `[ .08 3 .33 6460 STRUCTURE DATA. R/D-VAULT rfOR � RISER-HEAD VAULT-BOTTOM-AREA STOR-DEPTH STORAGE-VOLUME 4 .00 FT 1937 .5 SQ-FT 4. 00 FT 7744 CU-FT DOUBLE ORIFICE RESTRICTOR! DIA(INCHES) HT(FEET) Q-MAX(CPS) BOTTOM ORIFICE: 1 .21 .00 .080 TOP ORIFICE: 5 . 33 3 .33 .630 ROUTING DATA: STAGE (FT) DISCHARGE (CFS) STORAGE(CU-FT) PERM-AREA(SQ-FT) . 00 .00 . 0 . 0 .40 _ 03 775 . 0 . 0 . 80 .04 1550 . 0 . 0 1.20 . 04 2325 .0 .0 1 .60 . 05 3100 . 0 . 0 2 .00 _06 3875. 0 . 0 2 .40 . 06 4650.0 _ 0 2 . 80 .07 5425 . 0 .0 3 .20 .07 6200 . 0 .0 3 .33 .07 6451 . 9 . 0 3 .60 .48 6975 .0 . 0 4 .00 .71 7750.0 _ 0 4 .10 1 .06 7943 .7 . 0 4 .20 1 . 67 8137.5 . 0 4 .30 2 .44 8331.2 . 0 4 .40 3 .27 8525 . 0 .0 4.50 3 .59 8718 . 7 .0 AVERAGE VERTICAL PERMEABILITY: .0 MINUTES/INCH SPECIFY: F - FILE, N - NEWJOB, P - PRINT IF/OF, R - REVISE, S - STOP ENTER [d:] [path] filename [ .ext] FOR STORAGE OF ROUTING DATA: FILE ALREADY EXIST; OVERWRITE (Y Or N) 7 SPECIFY: F - FILE, N - NEWJOB, P -- PRINT IF/OF, R - REVISE, S - STOP Stop - Program terminated_ 07/16/1997 08: 29 3913055 BAIMA HOLMBERG INC PAGE 14 JOB BAIMA & HOWBERG, INC. SHEET No_ OF 100 Front Street South ISSAQUAH, WASHINGTON 98027-3817 CALCULATEDBv DATE (425) 392-0250 CHECKFD BY DATE SCALE • h Q ........................ ..... ...... ...... .................. q S r� v- , �/o ; . .. +-1 �`�G.S�P✓" s f Pam, ,�p..t�w . as .......: ; .... / o -'7 v .. ................. .. .. .r� 1p _ ... ...... ... .. siU, � ...... _ ... ... r+.i 1_F�/ cS-- ID; ;..... ......... L.......;... dpa. . . N 3 3 .......... ......6............'..........................1. ................._....... a..........._........................... ,......... 07/16/1997 00: 29 3913055 BAIMA HOLMBERG INC PAGE 15 raeezoldal Channel Anal"SIZ & oesIg-! Wen channei - UwWm ilot-! WoFksheet Watmai summent : Solve For Bottom WIdW aiven Wout Uata ; Left Side Simoe — 1 .jogl chiv". Right swe Sione , (H :V, 0-!arinel Glure . . ftift oeutn . . . . . . . . . . . . Wmnuteu Results : WHOM W101h . . . . O .Es tt It to 4? Z) FOA, .2-ocr-l-eA46OP-� Flow Area . . . . . . . . 0 .42 sf Flow Too Winth . . . 0 .27 m Wetted Perimeter . EW 1 t Criticat DeWn . . . 0 . 10 it Critical Quue _ 4 .02 Kitt !'.'Jude Number . . . . 0 .05 if Lt. w in Open Lhannel Piaw hadure . Version 2 .01 CW w5c) Haestad Methods , 1W . A 37 BrWkSide Rd * Watoruarv , Cc 06708 07/16/1997 0B:29 391:�55 BAIMA HOLMBERG INC PAGE 16 L E E) L h iH V - �n ar . . . . . . . i c;4 ep L . . . . . . . . . . i t ft I `_iLl b I F,E7- i a& a.di �-'i c.ra k 1�i.L C-4 -awl Lk v 29 3913055 BAIMA HOLMBERG INC PAGE 01 t r Baima & Holmberg Inc. ENGINEERS & SURVEYORS 100 FRONT STREET SOUTH ISSAQUAIL WASENGTON 98027-3817 (206) 392-0260 aly rAX (208) 391-3065 � r A77N: DATE: FROM: v . DOC MENT/SUBJECT: s IYYl� �t S — ►'1 �{ � � �� REMAWS: PAGES (INUDDING TH.S PAGE}: FAX NA: 07/16/1997 08:29 3913055 BAIMA HOLMBERG INC PAGE 02 43R ' ' SE ,J1„ PL z ~:' 11200 11600 � `ST SE`'+ f� N � r+ CT 815T � Y O W PL 82mo ►fyNo SE Sr, 83 N =: caAY L?..4 a a SE 84Ty cn SE 85 cn vwi 1 PLR E 857N pt -c cm N o SE 86TH ST tr' SE 87TH $T a CO ST SE r w SE18THFE cry4 1600 sE 8 1'F, SE 89TH ST oo N L P� , (^ — SE 90TH ST l , " •1 'SE 1 SE g ,12200 { 92NO ST r• LgTH } 27TH y, ST`" ,� i a �; SIERRA 1 j — I ' 7 `2I0� yr , ` `•' o i:� SE 99TH ST HEIGHTS r PARK �+ SE 10 N STS cV LU Mal SE 03RD ST. E .SE 1 ' 3 22ND 2 00 z Y . . v►, �^ v, > SE 04"1•t` t ; � z t„ rn to w: }. :ST, N �22ND ST a aoo 2900 .:ST . I NE 21ST S W= •.� :'� > c g =r $. KE�21st sT.w.. o SE 057N w S� -- �` �c4 11 ST i N > s NE' '^2p ti, l ,s u w E 06TH STz xE 1gTH P� y y 'NE 19 .. 3 - 4 KTH KF. .' TH 18T S7 °NIGILANDS �� tv y y PARK 114� JUDE w 4. (, ✓ 1, ' = z 'a :NE 14 •, s ley. < � �; � < =�• .,;Z - !•� u SST .i.1 y • , HE.14T1i •�T { ST NE' 3Y}i rPL MID ST< BAIMA HOLMBERG INC PAGE 03 /1997 09:29 3913055 - No •l I a� ^..�Q •A8C �i4ta I , • , �— am AkF gh . I: 854 8 � • j Kpa AqC AkF � o t r1aC AmC pf Bc L Pleasure 8 2-0 '8 I BM r 22 Point 21 A c f e PC. t `,,r ••Tl f Ur AmC 1AC r •• I B `` AkF +AkF Bh l ailts�am B 8 •AQC 42 Ko6 � FC` A �C NBWpO r A gp 4 Pines ` r • �• HMS Sec s ACC InA �; ) I U rnC Ur (1 1 /1 E�� W � >I Kp D♦ '. � 6!C Urs \ 1 / AgD,�^ 3 � ' 1 C BM AmC 9C •ec S I h 6h -� AE t� AaC May e K C •EvC ��,� OVD — —�--^---- si BMO 0©M Y■5� B Agp 690 642 _ ^ ' c'NO F = AgC _ BM Q i. AgC I ° 605 7 • _ 'AEC 34 ap A8C Agp 1 •� AgD 0r I Agp " ■ ' ACC •tnC AkF I AkF - vg A ♦_ �. AkF AEC BeG EvC T AkF C 3OG I e `Z 411 n1 } ■ r, D - • g AmC i; . }Srn' 1 .In d• _ ,•'� �'r -.�. .� m <1 I TO NE 7TN St. 23' 23' — ...... Ul E>aST I rlolsi raa i N 6615'36• tl 370.71' �'X J Ensµ car 19 i-.11 - 1T 0 cop w ten. TYPE t C8p •. 13 StARIM 0+02 a yu !1 O+OS. 25 l r i J ��l AiY 32105 /( Ftll 323.7 O _1`_\�1 —,NY:SlOJb• MK3i7:25'-..• � ' �_._ -:-. Q y � � j•'. �• .M -t a0 � n t.pp ' • .` 25TH T • . '.`� , ... r .2aTH sT � • —. •-- ' STA 0+02 C 160' 2' O Q,= - _ 12 NY.320.00 STA 1+61.3t Q " INY='Jt7. Rim . M.34 63'-12' ` ... .1 IHY.3,'19.39 0 D.3aX ( ROGCERY • CBS 4 i i MAX NIGHT b' j STA 2+40 COP INV . 319A4 STA 3+16.241 1f] I o f f3'•12. O 0.389 Rnl 32 .79 322.0 M g t� • `. 1-4S A + piw 326.79 32'+12' O 9.697i M 1 RIY.. ]16.9D- \ 10 m A `�w atMALE 1fo1:• o aye CV (\ J v` .190' 0 0.25% $ 7 m m r:• � 8 cots. T` LD m IIfl�. Ss0 N db1S' S' w 280.69' — 00'31'03' E ° CONTROL STRUCTVRC INv.3,6.�5 .I 20.00' I I NsOE V tULr, ca.e ., �. ,997 08:29 3913055 BAIMA HOLMBERG INC PAGE 05 BAIMA & HOLMBERG, INC. 3HEETNO_ / OF - 100 Front Street South �. .5�. DATE ISSAQUAH, WASHINGTON 98027-3817 CALCULATED BY (425) 392.0250 CHECKED BY DATE SCALE _. . _«. ... ........y..__.,:..._.... __:__...__. TO ......... ......... . ....... ..._ «1.._ ._.. _._. ._.._. .. .... _y.». .. .................. w._._.... _ .._ .2 ------------- ------------- ...... ... _.�.._.fir•./...___-_•-_•--•_-..........:- :_....».__ ......:....«_.. .. ._ ... _ _... - __........__......._..._...._.. _ ..._._-- _ -"- -'- ..,......... __.._....._«...__.y............«..._-'•.--.___....._._. ..........._....................... .._.. ... ... _ ...__.......... .... _ •.«. .... r ....;.._.__......._.... D ' : t • • . �• : 2•o P « :� Via. �/z O. i3�C : : ~:Cd �t Fig a 0 7•r _..._;..«_._.._...»_....:. -ks_•_.-_L:.�..__�.�../��Sf v r C ) (�0�. !��.[!toy s ...._.,....__.............. .. . .. ,2 Gf _._........ o _..._ _. _ ... _. ...... :ex,-- 07/16/1997 08:29 3913055 _ BAIMA HOLMBERG INC PAGE 06 ------------ Joe BAIMA & HOLMBERG. INC. SHEET NO, 2L— 100 Front Street South of ISSAQUAH, WASHINGTON 98027-3817 CALCULATED DY DATE (425) 392-0250 08ECKED 8Y onTs BCALE C _. 14 O « . . .._.«_......._ . ................._._. .: ram. ._ems. ,� <�;. y� 3� cls 7s .'. _..._._........ _. 397 08:29 3913055 y BAIMA HOLMBERG INC PAGE 07 ---------- P M 7- S.C.S. TYPE-lA DISTRIBUTION **** 2-YEAR 24-HOUR STORM **** 2 . 00" TOTAL PRECIP. ********* --------------------- .ER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO . 1 2 . 8 75 .0 .0 98 . 0 25 .3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 .8 2 . 8 75.0 . 0 98 . 0 25 .3 PEAK-Q(CFS) T-PEAK(HRS) VOL (CU-FT) . 08 Ir 12 .50 3904 r S .C.S. TYPE-lA DISTRIBUTION ***********+********- 10-YEAR 24-HOUR STORM **** 2 . 90" TOTAL PRECIP. ********* ------------------------------------------------------------------ ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 75 . 0 .0 98 . 0 25 .3 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 . 8 2 . 8 75. 0 . 0 98. 0 25 . 3 PEAR-Q (CFS) T-PEAK(HRS) VOL(CU-FT) 8 .00 9165 ---------------------------------------------------------------------- ******************* S.C.S . TYPE-lA DISTRIBUTION ******************** 100-YEAR 24-HOUR STORM **** 3 . 90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- •.NTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 2 . 8 75 . 0 .0 98 . 0 25 .3 'ATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 . 8 2 . 8 75 . 0 . 0 98 . 0 25 .3 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) ..ZL 7 . 83 16294 roe 0o pz 2rs.) 1 '4V)TA 301$NI I 3 .IO,lG00 N S+QIf-ANI 3mkonui s 1ot11NNCD u l LO LD .. ��,a»- a '� ;�• � f------ � �• ze j_ 1t m 9f'O 0 ,21-,Otl � 77YMSOIB 1 u) 0 t 1 a6 9lC -AN] "f.: . xe9 6 0 ,rt—.zc 6i lzl - NI11 YLS _ Q O'rLf -ml IK-1� � 4 I '�` �. m to OC'9LC TtM YPCO O ,Ll^,C9 Ul +Z'Ol+f Y1S IrV61f - ANI u L�80 6l-9zC - raw 4 0/+2 YLS ,V 1k*31N YM i G/91J i Akmoov fJ %9C'0 0 6C'61L,C-ANI Z• k 1 .Zl-,ts KSTC mLlC'i M 1 0 "go 3 oo'ozc�; TOUT .- MtN T _- Yltf 0 0 .L Asl I LO+on . YOSo 0'.Ll+,tf 10. �T SC'Ctf-ANI it02C�A111 \ �.4 r C 9 o,Lt-,2C VOTIC - mitt OS'ILf-AM. lSi 'So" S--- re+ t+ zo*o V1S 3 I st'GtC - "Qj i 6#83 i{ 1 UA1 'tleo 1b Ct ,rt If't9+1 vis I g m gt � m � �t Mt"� Cl Z. H Z Cc) iJ 1N3V6SV3 S~�~ r- o o .unun\oz m x lC'OCC ' 'A .9CALl- N ` 3snoN` f m I '1SIx3 .... . ......, c is N1LL 3N 01 ~— TTVAlno k4wws .zL I f m CD m .6/1997 08:29 3913055 BAIMA HOLMBERG INC PAGE 09 J013 -7 BAIMA & HOLMBERG, INC. SHEETNO S OF 100 Front Street South CALCULATED BY ISSAQUAH, WASHINGTON 98027-3817 DATE (425) 392.0250 CHECKED BY DATE SCALE - ....: .. .. ....... _ ......................-- - , i /9 ;owvH .art -3............ L� ; G L, r.. : ._........__........,.__......5 -_ . ......_......... .... . . ; i. e ...___......_.......__..r._......;....__....._................. ............. ..... ._..._._......_.. .. .... ..__. .... ..... ......... ..... ... ........_.._..-..._ .._..__..._. ....... .... .. P/�A/✓d .i...._ r� Sb _ . 07/16/1997 08: 29 3913055 BAIMA HOLMBERG INC PAGE 10 JOB BAIMA & HOLMBERG, INC. SHEET NO 100 Front Street South °F ISSAQUAH, WASHINGTON 98027-3817 CALCULATED BY DATE (425) 392-0250 CHECKED BY DATE SCALE 21 _ — _ _.. . . . _.... . l � - .. ..... .. _. ... ._ _. - ....._.._. .....__........... _.... .. _..._ _... -_ -' ...... _ ..:......«_........._.....___....��f�.....^;.....«0..... 79' . ..CAS'_. .. _ : _ .._. . _ •..........•............... _.«_•....._..... ..... .. '7 08:29 3913055 BAIMA HOLMBERG INC PAGE 11 f 0 o s T Ay. �-o,o�1tT ************ S .C.S . TYPE-lA DISTRIBUTION ******************** ** 2-YEAR 24-HOUR STORM **** 2 .00" TOTAL PRECIP. ********* R: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1- 1 .3 68.0 1. 6 98 . 0 5 . 0 .TA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 .8 1.3 68 . 0 1.6 98 .0 5 .0 PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT) .79 7 . 67 10944 --------2---------------------------- ------------------------------- ******************** S.C.S. TYPE-lA DISTRIBUTION * ******** 10-YEAR 24-HOUR STORM **** 2 .90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- ENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 .3 68 . 0 1.6 98 . 0 5 . 0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 .8 1.3 68 . 0 1. 6 98 . 0 5 .0 PEAK-Q(CFS) T-PEAK(HRS) VOL(CU-FT) 1.2.3 7 . 67 17766 �!e ----------------------------------------------------------------------- ******************** S .C.S. TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 3 .90" TOTAL PRECIP. ********* ---------------------------------------------------------------------- EENTER: A(PERV) , CN(PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1.3 68 . 0 1. 6 98 . 0 5 .0 DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC(MINUTES) A CN A CN 2 .8 1.3 68. 0 1. 6 98 . 0 5 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL(CU-FT) 1.84 7 . 67 26021 �ab 07/16/1997 08:29 3913055 BAIMA HOLMBERG INC PAGE 12 Joe 6AIMA & HOLMBERG. INC. 9HEETNO. 100 Front Street South OF ISSAQUAH, WASHING70N 98027-3817 CALCULATM9y GATE (425) 392-0250 CHECKED BY OA7E • SCAtE 4 N !� T- v� __... C� ........ ... u - .......... �� .. ... .._.......... ... .._ 1-3 _ _ .;..._....._..... .. .. i.�J j. t - _.. .. - _...._ T fZ ...................... ......._......_.._. ........... . 1p-Yc'a� ' l/p /ter, '7 . . 736 'o•,� • All ml ru o.-...+....,,.,...,,, ... '37 08:29 3913055 _ BAIMA HOLMBERG INC PAGE 13 4ANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE ;N HYD: 1.84 43&ps .71 �J� LAe .71 4 . 00 7744 HYD 1 : 1 .23 Qrp .32 .29 3 .47 .�n . r HYD 2 : . 79 �� . 0 ce .08 3 .33 6460 .RUCTURE DATA: R/D-VAULT RISER-HEAD VAULT-BOTTOM-AREA STOR-DEPTH STORAGE-VOLUME f 30 �Jo 4 . 00 FT 1937 .5 SQ-FT 4 .00 FT 7744 CU-FT DOUBLE ORIFICE RESTRICTOR: DIA(INCHES) HT(FEET) Q-MAX (CFS) BOTTOM ORIFICE: 1.21 .00 . 080 TOP ORIFICE: 5 . 33 3 .33 . 630 ROUTING DATA: STAGE (FT) DISCHARGE(CFS) STORAGE (CU-FT) PERM-AREA(SQ-FT) . 00 .00 . 0 . 0 .40 . 03 775 . 0 . 0 . 80 .04 1550 . 0 . 0 1.20 . 04 2325 . 0 . 0 1 . 60 . 05 3100 . 0 . 0 2 .00 . 06 3875 . 0 . 0 2 .40 . 06 4650 .0 _0 2. 80 .07 5425 . 0 . 0 3 .20 . 07 6200 . 0 . 0 3 .33 . 07 6451. 9 . 0 3 . 60 .48 6975 . 0 .0 4 .00 .71 7750 . 0 -0 4 .10 1 .06 7943 . 7 . 0 4 .20 1. 67 8137 .5 .0 4 .30 2 .44 8331.2 .0 4 .40 3 .27 8525 . 0 . 0 4 .50 3 .59 8718 . 7 .0 AVERAGE VERTICAL PERMEABILITY: . 0 MINUTES/INCH SPECIFY: F - FILE, N - NEWJOB, P - PRINT IF/OF, R - REVISE, S - STOP SNTER [d:] [path] filename [ .ext] FOR STORAGE OF ROUTING DATA: 2ILE ALREADY EXIST; OVERWRITE (Y or N) 7 SPECIFY: F - FILE, N - NEWJOB, P - PRINT IF/OF, R - REVISE, S - STOP Stop - Program terminated. d//16/1997 08:29 3913055 BAIMA HOLMBERG INC PAGE 14 ---------- JOB BAIMA & HOLMBERG, INC. 5HEETNO. 100 Front Street South of ISSAQUAH, WASHINGTON 98027-3817 CALCULATEo 8Y (425) 392-0250 DATE CHECXZD By DATE SL'.ALE r •• .... • ... V . : _. _ .. . . . .. 0' .. ._........... .. ... _.._.._.. ....... _ .._._�_._._. __._____ : ' Rio w �•.• � ... . .a q y J .: 1pm : t _........... -------------- , F. s d,,, _. 3 N _.__.. --- - - r) C.:j CIE'. i� L)'I Pl= 7 Cie 1: J DQ170 T MC-1 1 4.1 U :1 T 1 2D R rsi (74 ?.25rw 4. + i.4 uu s; .-I ;:j ki-D F:- T 0 5� T Sl PVQ tr•.-4 a-B 4 s A OM W 0 4- lu i I C'T S;i4C, S t*S I L.1 u—1 -ir,D T 7--4 C, ST 3DVd ONI 963EW-10H VNIVE SG0E16C 6Z:80 16, 07/16/1997 08: 29 3913055 BAIMA HOLMBERG INC PAGE 16 Trade win al Channel "n Uniform MrKshyet / T 7- y /7 SOLve For Given innut Data . Bottom Left Sias RIM We Slone . MdnnjnQ "g n. . . . . . S Loqs , , , , two Discharge . . . . . . . . computed Results ! bemth , ' . . . . . . . . . . y Velocity . , . , . . . . . Flow Area — . . . 1 .30 — 57 Flow Top width . , , 1 .41 4 Wetted Perimeter , . 15 Critical MUM — 4 .35 Critics! 5100e 0 .qo Froune Nmmbar . . . . 0 .02 0 -30 (flew is Omen ChanneL Flow Muouie , Ve,,j,, 2 ,01 ,, "Stad MhOms , inc , N El BrmukSide Rd * WaVerburv . BAIMA & HOLMBERG INC. PRELIMINARY DRAINAGE REPORT FOR HONEY CREEK HEIGHTS PRELIMINARY PLAT March 18, 1997 Baima & Holmberg Job No. 725-002C�,��i� . }? v 199i ^fT-YOFA rOh S�UPE� �'o� Prepared For: 3 r✓' t' �7 Robert Colwell o �P 11332 ,r 2526 NE 27th Street '` SIG�'� Renton, WA 98056 OVAL EXPIRES II .3(0 100 FRONT STREET SOUTH ISSAQUAH WASHINGTON • 98027-3817 (206) 392-0250 • FAX (206)391-3055 BAIMA & HOLMBERG INC. Honey Creek Heights is a 2.84 acre site which is relatively flat and slopes generally to the northwest. Site slopes are generally 2% to 5%. The site is open and undeveloped with a few scattered trees. There is no defined drainage course from the site. Most likely existing runoff infiltrates rather than running off the site. A storm outfall will be constructed from the existing storm system on NE 27th Street to the site. Site storm drainage will be collected and piped to a storm detention vault located within Tract 'B'. This vault will be sized per City of Renton Standards. The anticipated storage volume is approximately 9,000 cubic feet. Storm drainage will be directed from the vault to a bioswale located on the west side of the property southerly of NE 25th Street. Since the site is within an aquifer protection zone, it is likely that a liner will be required under the bio-Swale. The bio-swale will discharge to the storm outfall to NE 27th Street. 100 FRONT STREET SOUTH • ISSAQUAH • WASHINGTON • 98027-3817 • (206)392-0250 • FAX (206) 391-3055 BAIMA & HOLMBERG INC. HONEY CREEK HEIGHTS PROJECT NARRATIVE Honey Creek Heights is a proposed 19 lot single family residential development. The site is located north of NE 24th Street and East of Ferndale Avenue NE. The proposed subdivision will be served by NE 25th Street which will be extended east and south through the site and will be connected to an unnamed public street which connects to NE 24th Street. Six inch public water lines are stubbed to the west line and the south line of the property. A six inch water line will be extended through the property completing a loop with the two existing stubs. The property is not currently served by sewer, however, it is anticipated that a City of Renton L.I.D. will extend sewer service in NE 24th Street this summer. Honey Creek Heights would connect to this sewer. The property is not currently served by a storm drainage system either. The proposed subdivision would construct an on site storm collection and detention system which would discharge to an on site bio-Swale. The bio-swale would discharge to a storm outfall which will be constructed offsite to an existing storm system in NE 27th Street. The Honey Creek Heights site is 2.84 acre in size and is currently vacant. The southeasterly portion of the site is encumbered by a driveway which serves tax lots 77 and 130. The site is relatively flat and contains no sensitive areas. The site is within an aquifer protection zone. n ��N OF RENTON 100 FRONT STREET SOUTH ISSAQUAH • WASHINGTON 98027-3817 (206)392-0250 • FAX (206)391-3055