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HomeMy WebLinkAboutSWP272273 SzN -Z7- 2-2/ 3 ��,� �a4 FOR DISTRIBUTION TO: ® Water Utility Building Division Wastewater Utility Public Works Constr Inspector Surface Water Utility ® Fire Prevention AMaintenance Services FRS Transportation Systems Project: Up E„ rOl� _r_J,� ZZ73 Location: 460 ��A s /, Attached please find copies of: IN PERMIT BILLS OF SALE ® RECEIPT COST DATA INVENTORY IN LETTER OF SPECIAL BILLING EASEMENTS) STUB SERVICE AGREEMENT COPY OF AS-BUILT PRECON NOTES ® PRECON ATTENDEES DRAINAGE REPORT MEMO-WATER BREAKDOWN MAP WITH NEW MAINS AND VALVES OTHER From: 1 � Date: C:T8:PREC0N:DISTFRM Bill of Sale WHEN RECORDED RETURN TO: Proieci FFiQilc 0 � —_—_-- ofricc of the Ciry Cicrk Sir: 15 " Q .::�-5 Rcnton Municipal Building Grantor(s) namcQ 200 Mill Avcnuc South STREET INTERSECTION or Rcnton,WA 98055 NAME OF PROJECT: S/0 A V S BILL Or SALE KNOW ALL MEN BY THESE PRESENTS: That HARPER ENGEENERING of RENTON County of KING , State of Washington, the part(y/ies) of the first part, for and in consideration of the sum of ; $2400:00 Two thousand four hundred dol 1 ars and no cents Dollars lawful money of the United States of America, to CITY OF RENTON in hand paid by the part(y/ies) of the second part, the receipt whereof is hereby acknowledged, do(es) by these presents grant, bargain, sell and deliver unto the said part(y/ies) of the second part, [lie following described personal property now located at200 SOJOBIN ST. in the City Of RENTON , County of KING and State of Washington, to-wit: See Attached Exhibit "A" TO HAVE AND TO HOLD the same to the said part(y/ies) of the second part, (their/his/her) heirs, executors, administrators and assigns forever. And said part(y/ies) of the first part, for (their/his/her) heirs, executors, administrators, covenant(s) and agree(s) to and with Elie said part(y/ies) of the second part, (their/his/her) executors, administrators and assigns, that said party/ies) of the first part (is/are) the owner(s) of the said property, goods and chattels and has(ve) good right and full authority to sell the same, and that will warrant and defend the sale hereby made unto the said part(y/ies) of the second part, (their/Iiis/her) executors, administrators and assigns, against all and every person or persons, whomsoever, lawfully claiming or to claim the same, IN WITNESS WHEREOF, The said part(y/ies) of the first part has(ve) hereunto set (their/his/hcr) hand and seal this day of STATE OF WASHINGTON ) �j SS � COUNTY OF KING ) / / 2 /l/Z�l.. ( I I certifychat I know or have satisfac � � Z� lat is the person who . � A appeared before me and said pe,$5n a��lgc�tFk hat (he/she) signed this instrument and acknowledged it to be (his/her) �' Ill v unQyt'� ctMfor the uses and purposes mentionc,d in the instrument. A O • Dated: .20 6 �� •o � . — -.._—. t*-,*Tington lie in and for the Stslte of Notary (Print) Doan c/fonns/BOSPORM.DOC/bh/5/94 My appointment expires: Exhibit"A" Bill of Sale 45 if of 8"pvc storm line 1 ea of 36" storm catchbasin Documents\ PROJECT CLOSING #4 Final Cost Data FINAL COST DATA AND INVENTORY and Inventory SUBJECT: I ITT I TTFS CITY PROJECT NUMBERS: WTR- WWP- HARPER ENGEENERING SWP- Name of project TRO- TED- 2 73 TO: City of Renton FROM: HARPER ENGEENERING Plan Review Section 2n0 SO TnRTN Planning/Building/Public Works [ nlTnnl Inl!!,-W QRnFF 200 Mill Avenue South Renton,WA 98055 DATE: 19 AUG 1996 Per the request of the City of Renton, the following information is furnished concerning final costs for improvements installed for the above referenced project. WATER SYSTEM CONSTRUCTION COSTS: Length Size Type L.F.of WATERMAIN L.F.of WATERMAIN L.F.of WATERMAIN L.F.of WATERMAIN EACH of GATE VALVES EACH of GATE VALVES EACH of GATE VALVES EACH of FIRE HYDRANT ASSEMBLIES $ (Cost of Fire Hydrants must be listed separately) $ (Include Engineering and Sales Tax if applicable $ TOTAL COST FOR WATER SYSTEM $ SANITARY SEWER SYSTEM: STORM DRAINAGE SYSTEM: Length Size Type Length Size Type L.F.of p\/E SEWER MAIN 4b L.F.of —8 Py(; STORM LINE L.F.of SEWER MAIN L.F.of STORM LINE L.F.of SEWER MAIN L.F.of STORM LINE EA of DIAMETER MANHOLES EA of STORM INLEIYOUTLET EA of DIAMETER MANHOLES 1 EA of 36 ONE STORM CATCHBASIN (Including Engineering and Sales Tax EA of STORM CATCHBASIN if applicable) S (Including Engineering and Sales Tax TOTAL COST FOR SANITARY SEWER SYSTEM S if applicable) s ?4n0 nn TOTAL COST FOR STORM DRAINAGE SYSTEMnn — STREET IMPROVEMENTS: (Including Curb,Gutter,Sidewalk,Asphalt Pavement and Street Lighting) STDEWALKPATCHTNG.ASPHAIT PAVEMENT PATCHING SIGNALIZATION: (Including Eng.Design Costs,City Permit Fees,WA St Sales Tax) STREET LIGHTING: (Including Eng.Design Costs,City Permit Fees,WA St Sales Tax) 255 0414 Print signatory name day phone# (SIGNATURE) forms/COSTDAT2.DOCfbh (Signatory must be authorized agent or owner of subject development) LEVEL I DRAINAGE INSPECTION FOR �y HARPER SITE PLAN PROJECT NO. 94-62 August 9, 1995 off,oR ASI B 12701 S�ONAL l '^ORES: 9 5 ' 77 22 � BY: FOR: PACIFIC ENGINEERING DESIGN, INC. HARPER ENGINEERING 130 ANDOVER PARK EAST 200 SOUTH TOBIN STREET SUITE 300 RENTON, WA 98055 SEATTLE, WA 98188 PHONE: (206) 255-0414 PHONE: (206) 431-7970 LEVEL I DRAINAGE INSPECTION On August 8, 1995 a site inspection of the down-stream drainage corridor was made during clear weather conditions. The City of Renton Storm Drainage Inventory Maps/data were used as a reference. The subject improvements drain to Lake Street which contains a storm drainage trunk line extending from Airport Way to the intersection of Rainier Avenue N. and 3rd Street. Areas contributing drainage to this line are commercial developments with the exception of Renton High School practice field located between Tobin and 2nd Street. The storm drainage trunk line consists of catch basirg'with CMP and concrete pipe lines. The pipe sizes range from 12" diameter at the Tobin/Lake Street intersection to 24" diameter concrete south of the Lake Street/2nd Avenue intersection. The drainage corridor was investigated for 1/4 mile downstream of the site and no capacity problems were observed with the exception of an area along the west curb line opposite point 16F5-6 (refer to Inventory Map). In this area, the adjacent building at the west margin of Lake Street has stairways leading from the sidewalk down to building entries for the bottom floor. At two of these stairways, sand bags and plywood have been placed apparently to prevent drainage resulting from street flooding from entering the lower floors due to overtopping of the sidewalk. This indicates flooding at the low point in Lake Street. From the city data it is noted the pipe run (from point 16F5-10 to 16F5-7) is a 15" diameter CMP at 0.15%. Pipe capacity, flowing full at this point, would be approximately 1.3 cfs. A drainage analysis for the 100 year/24 hour event was done. This analysis showed the increase in flows from the proposal would be 0.15 cfs with an increase of runoff volume of 570 c.f. Since the 100 year runoff increase was less than 0.5 cfs the site qualifies for an exemption from providing on-site detention for the proposed development. It should be noted the existing parking lot surface detention area has been relocated from the north portion of the site to the south parking area. Therefore, the existing detention volume is still provided by the new development. The flooding problem previously discussed is likely the result of the 110' of 15" diameter CMP pipe at S = 0.15% having insufficient capacity. The flooding problem probably occurs during even minor storm events. This proposal will not aggravate, i.e., increase the magnitude, . frequency or duration, of the existing flooding problem. No erosion, scouring, bank sloughing or sedimentation were noted during the inspection. I F4-4- Q \ ----- 16,G3-7 J 1 16,D4-t6 16,D -1 16,E4-1 < IZ"COK 16,Dd�14 ,D4- 6,E4-1 16,E-4 ,(, y 16,G4- Nil- - -► I 9 j -; , f ::D + ` 16,D4-4 S` 16:! <-c?\' 161F4-7 �T f--._ ! DT �I ( 16,E4-13 (Z"Ct�rrG . rt'_ !7 i Q I •i � ,v` 16,D41 � 16,F4- i 16,D4-7 6,D4-6 q :4-2 I �� G R !16,F4-9 n # C N { �•• 1 D4-8 16,C4-3 AVE 16,D4-2 16,C4-4 16.D4-1-' 16,D4-10 16,D4-9 VrCT 6,-4 1 I ` j , rA (� "J T t 6,E 17- ifh <l: 16E4-2 r _ I �' ��- r,FA-s _ ~ 16,E 7 Cam} I i jS"C� r I ' 16,E-5-8 _ •I� � 16,E-5-6 16,E-5-9 j �{5 •�► 16,E-5- =ia,v (S"CHIP Fc_oC7v1[-l(. t,S . I f 16,E-5-51 I 1 ARC 16,E-5-ll � i I 2 i 16,F51 � W 2V ST 16 5 16,F1 5-12i/ S,F 5-1Cr{ �� I E5- D 2AL [S L ``11 j 16E5-l2 (S" �{VV�-Z �) f t 16.F5-7 16.F5-� j ' 16,E5-1 Q ___ 13"CON S 2ND 16,F5-13 16,E-5-14 -� j j t 16,F5-10 16,F5_9 Z4-"CoC-- 15,G5-4 16�5-5 4 16,F5-8 f f ! f 16,F5-2 � ` 16,F5-1 sl Z,�V cchq C,- PG,C 16,C6 2 Q 16,F5-14 16,G5-6 / I ,CS- { 1 6r 16 5- I6,E6-8 - i 6-11 16,E-6- 16,E6-10 6,F5-16 � 16,D6 16,D6-5 I ( { /1�,`C6-1Q 16,D - { Q 6,GE 16;D6_10 (� 6,E 6- J 6,E6 5 i 16,E6-1?4 f 15,D6- 6,D6-12 16,E-6-2 6� 16,D6- 16,E-6-1 16,F6-9 S ` 16,F6-10 i 6.D 3 6,F6-13 f 3R 6,G6-3i 16,G 16,D6-1 16,E6-18 -22 16,E6-2 16,FG- - 16 E6-2 16.E6-It f 15,F6 i IS,F6-14 ,G6- 16,E-19 16,E6-4 16,EG-12 1 .Q. 16,E6-16 �Q f 16,E-6-1 2 3RD Pi L 16,C -5 16,C6- 16,F6- \ 16,E6-13 C i _ CV� if ,D6-12 EBTSD16.XLS CATCH BASIN AND OUTLET PIPE INVENTORY SHEET 16 !The inventory information for the storm drainage system was compiled from numerous sources and is the best information available at this time and should be used only for GENERAL guidance . The City of Renton is not responsible for errors or omissions when this information is used for engineering purpose. Designers are to field verify this information. DWN GRATE GRATE PIPE PIPE STREAM STRUCTURE INDEX # TYPE ELVE UPPER IE LOWER IE TYPE DIAM TYPE LENGTH STRUCT PLAN FILE CB 16,E 6 - 8 , 1 83.97 81.29 82.21 S• - - - 16,E6-7 4-4-319 CB 16,E 6 - 9 1 83.69 79.27 - S 12 CC - 16,E 6-24 4-4-319 CB 16,E 6 - 14 1 - - - S 12 CC - 16,E6-15 - CB 16,E 6 - 15 1 S 12 CC 16,E6-16 CB 16,E 6 - 16 1 - - - S 12 CC - 16,E6-4 - CB 16,E 6 - 17 1 - - - S 12 CC - 16,177-7 - CB 16,E 6 - 18 1 30.62 26.2 - S 24 CC - 16,D6-19 19-4-13 CB 16,E 6 - 24 1 - - - S - - - 16,E6-21 - CB 16,17 3 - 2 1 27.4 23.79 22.42 S 12 CC 274 16,F3-3 1-2-7. CB 16,F 3 - 3 1 26.3 22.42 22 S 12 CC 83 16,F3-4 1-2-7. CB 16,F 4 - 4 1 26.6 24.05 22.8 S 6 CC 260 16,F4-5 4-1-124 CB 16,F 4 - 5 1 25.8 22.8 20.9 S 8 _ CC 230 16,174-6 4-1-124 CB 16,F 4 - 7 1 25 22.54 20.78 S 8 CMP 80 16,F4-8 17-4-163 CB 16,F 4 - 8 1 24.59 20.78 20.32 S 12 , CMP — 92 16,F4-9 17-4-163 + CB 16,F 4 - 9 1 25 20.32 20.13 S 12 CMP 38 16,F4-2 17-4-163 CB 16,F 4 - 10 1 27.9 23.95 22.61 S 12 CC 336 16,F4-11 1-2-7. CB 16,17 4 - 11 1 26.4 22.6 22.5 C 12 CC 22 16,F4-1 1-2-7. CB 16,F 4 - 12 1 - - - S 12 CC 16,F4-3 - CB 16,F 6 - 2 1 23.25 20.72 19.6 S 12 CSP 150 16,F6-3 3-1-501 CB 16,F 6 - 4 1 24.5 18.97 18.17 S 12 CSP 45 16,F6-6 3-1-501 CB 16,F . 6 - 12 1 - - - S 12 CC - 16,F7-6 - CB 16,F 7 - 6 1 - - - S 18 CC - 16,F7-7 - CB 16,F 7 - 7 1 - - - C 12 CC - 16,F7-8 - CB 16,F 7 - 8 1 - - - C 12 CC - 16,F7-9 - CB 16,F 7 - 9 1 - - - C 12 CC - 16,F7-10 - CB 16,F 7 - 10 1 - - - C 12 CC - 16,F7-3 - CB 16,F 7 - 11 1 - - - S 18 CC - 16,F7-12 - CB 16,F 7 - 13 1 - - - S 8 CC - 16,F7-14 - April, 1995 Page 3 f � '- 8�ii5016 XLS a 3 .AND OUTLET PIPE INVENTORY SHEET 16 i ud orrlj►sl6jrn-_'drakwge system was G guidance . The compiled 1City of Ren on numeroussourcesthe best information is not responsible for errors or omissions'lab t thisi when this uled or'erigirieering purpose. Designers are to field verify this information. y ., . DWN GRATE UPPER LOWER GRATE O1W PIPE PIPE STREAM PLAN TRUCTURE INDEX # TYPE CB ? IE IE IE TYPE SEP. DIAM. TYPE LENGTH STRUCT FILE 16,E 8 - 15 2-54. Y 20 16.09 16 S N 24 CMP 42 16,E8-5 4-3-210 16,E 8 - 16 2 Y 21.84 12.85 12.22 C N 48 RCP 225 16,E8-17 SW 7TH ST MH 16,E 8 - 17 Jan-00 Y 22 12.22 11.9 C N 48 RCP 115 16,E8-18 SW 7TH MH 16,E 8 - 18 2-72. Y 22.3 13.7 13.64 C N 24 CC 23 16,E8-4 SW 7TH MH 16,E 8 - 19 2 Y - - - C N 60X36 CMP - 16,D8-10 - MH 16,F 3 - 1 2 Y 30.77 20.29 20.04 - N 18 CC 100 - 1-2-7. MH 16,F 3 - 4 2 Y 26.8 22 20.79 C N 12 CC 302 16,E3-5 1-2-7. MH 16,F 4 - 1 2-48. Y 26.3 22.31 - C N 12 CC Q 16,F4-12 + 3-1-551 • MH 16,F 4 - 2 2-48. Y 25.5 22.56 22.31 S N 12 CC 50 16,F4-1 3-1-552 • MH 16,F 4 - _3 2-48. Y _ 24.5 21.99 21.56 S N 15 CMP — 286 16,F5-6 3-1-551 MH 16,F 4 - 6 2-48 Y 26.5 24.65 22.56 C N 12 CC 200 16,F4-2 4-1-124 MH 16,F 5 - 1 2 Y - - - C N 12 CC - 16,F5-14 - MH 16,F 5 - 2 2 Y 26.86 15.4 - C N 24 CC - —16,F5-16 17-1-7 MH 16,F 5 - 3 _ 2-48. Y 26.03 17.6 17.5 C N 18 CC 16,F5-9 3-1-551 _16 F 5_ 6_ 2-48. Y 25.4 18.16 17.97 S N 15 CMP 170 16,F5-10 3-1-551 MH 16,F 5 - 7 2-48. Y 25.8 17.81 17.69 C N 15 CMP 2 16,F5-3 3-1-551 " H 16,F 5 - 8 2 Y 32.96 28.46 - S N 18 CC 190 16,F5-9 17-1-7 H 16,F 5 - 9 2 Y - - - C N 24 -CC - 16,F5-2 17-1-7 + MH 16,F 5 - 10 2-48. Y 24.9 17.97 17.81 S_ N_ _15 _ _CC _ 110 _ 16,F5-7 4-1-136 MH 16,F 5 - 11 2-54. Y 30.5 20.93 20.6 L N 48 CMP 58 16,F5-12— 4-1-136. MH 16,F 5 - 12 2-54. Y 26.6 20.6 18.22 L Y W/R 12 CC 40 16,F5-10 4-1-136 MH 16,F 5 - 13 2 Y 26.86 15.4 - - N - CC - 16,F5-1 FB 340 MH 16,F 5 - 14 2 N - - - C N 12 CC - 16,F6-10 - MH 16,F 5 - 16 2 Y - - - C N 24 CC - 16,Ff# — 17-3-31 MH 16,F 6 - 5 2-54. Y 27.34 18.74 18.17 C N 12 CC 260 16,F6-6 3-1-501 MH 16,F 6 - 6 2-54. Y 26.09 18.17 18.17 C N 12 CC 12 16,F7-1 3-1-501 MH 16,F 6 - 7 2-54. Y 21.8 16 15 S N 8 CC 300 16,F6-8 4-1-111 MH 16,F 6 - 8 2-54. Y 21.8 15.83 41.33 S N 8 CC 150 16,F6-9 4-1-111 April, 1995 Page 6 PACIFIC ENOINEERINQ DESIGN INC. '1OB CIVIL ENGINEERING AND PLANNING CONSULTANTS SHEET NO. I ` OF CALCULATED BY �� 1` DATE V�' )3,q 4 ...........>... ......,............ ..._. .....,.., _. ....... .a ... .... .. .. .... ... .. 1LLr. .... .. .... .... ! s j j ............ .......... _.... ..... ..... ..... ...... ...... ...... ...... ...... ..... ..... ...... ... .... .... .............. .. ... .... ...... ..... ...a.... ...e.... .......... i i � ' i ! i ! i 1. i .: .... .. ....... ...:.....-'.......... ...... ..... ...... ..... .... ...... ..... ...... ...... ...... ..... .... ... ..........................:..................... !(o......�-IM d t`e . ......................... ............_ .......... ...... ...... ! ...... ...... .... ..... ...... ...... ...... ..... ..... :. ;.... :.... ............: ; ; o .................................... .......... ..... ......... .............. ... ..... 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F lC t� 1 O ...... ...... ...... .... ...... ...... ..... ..... ..... .... ............................... ...� . `........._ ... ....... - ... ...... s ... ..... ..... ...... ...... ...... ...... ..... ..... ..... ..... ...... ..... ......... .... s.s...... ........ ........ ............:...................................................................................a........a .... ... ...... ..... .... ..... ...... ...... ...... ...... ..... ..... ..... j ....................... j... ......... ...... ..... ...... ..... ..... ...... ...... ...... ..... ..... ..... .... .... .. . .. .. .. ...... ....... ....... ...... ..... �.�.--.. :.. ...... ...... ............................... ..... .... ..... ..... gp.... ....... ........ :.... a ° . ... ............ I' . ... .. .... ......................................:.. .... ...... ...... ..... ...... .... ..... .... ..... ..... ..... .. ..... ..... j.. ....:.... ....:.... ztoZ� II s 1� i.�S......... .................1 ....:... .. .................................... ... .... �c............................... ...... ..... ...... .... ..... .... ...... ...... ...... . ......... ........ ......... ......... ....:.... ........ .................... ..... ..... ..... ..... 130 ANDOVER PARK EAST, SJW300 SEATTLE, WASHINGTON 98188 6) 431-7970 FAX:431-7975 8/ 9/95 Pacific Engineering Design Inc page 1 HARPER ENGINEERING BUILDING ADDITION EXEMPTION FROM ON--SITE DETENTION BASED ON NET INCREASE FOR 100 YR/24 HR EVENT OF LESS THAN 0 .5 CFS BASIN SUMMARY BASIN ID: DE10 NAME : DEVELOPED BASIN W/ 10 YR SBUH METHODOLOGY TOTAL AREA . . . . . . . = 0 .35 Acres BASEFLOWS; 0 .00 cfs RAINFALL. TYPE . . . . : USER1 PERVIOUS AREA PRECIPITATION . . . . : 2 .90 inches AREA _ : 0 .00 Acres TIME INTERVAL . . . . : 10 .00 min CN . . . . : 86 .00 TIME OF CONC . . . . . .. 1 .78 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .20 AREA - : 0 .35 Acres CN . . . . 98 .00 TGReach -- Sheet L : 80 .00 ns:0 .0110 p2yr : 2 .00 s:0 .0088 PEAK RATE : 0 .30 cfs VOL: 0 .08 Ac-ft TIME : 470 min BASIN ID: DE100 NAME: DEVELOPED BASIN W/ 100 SBUH METHODOLOGY TOTAL AREA . . . . . . . 0 .35 Acres BASEFLOWS: 0 .00 cfs RAINFALL TYPE . . . . : USER1 PERVIOUS AREA PRECIPITATION . . . . : 3 .90 inches AREA . . : 0 .00 Acres TIME INTERVAL . . . . : 10 .00 min CN . . . . : 86 .00 TIME OF CONC . . . . . : 1 .78 min IMPERVIOUS AREA ABSTRACTION COEFF 0 .20 AREA - : 0 .35 Acres CN . . . . 98 .00 TGReach - Sheet L: 80 .00 ns:0 .0110 p2yr . 2 .00 s :0 .0088 PEAK RATE: 0 .41 cfs VOL: 0 . 11 Ac-ft TIME : 470 min BASIN ID: DE2 NAME : DEVEELOPED BASIN W/ 2 YR SBUH METHODOLOGY TOTAL AREA . . . . . . . : 0 .35 Acres BASEFLOWS: 0 .00 cfs RAINFALL TYPE . . . . : USER1 PERVIOUS AREA PRECIPITATION . . . . ; 2 .00 inches AREA - : 0 .00 Acres TIME INTERVAL. . . . . : 10 .00 min CN . . . . : 86 .00 TIME OF CONC . . . . . : 1 .78 min IMPERVIOUS AREA ABSTRACTION COEFF: 0 .20 AREA . . : 0 .35 Acres CN . . . . 98 .00 TGReach - Sheet L : 80 .00 ns:0 .0110 p2yr : 2 .00 s:0 .0088 PEAK RATE : 0 .20 cfs VOL : 0 .05 Ac-ft TIME : 470 min 8/ 9/95 Pacific Engineering Design Inc Page 2 HARPER ENGINEERING BUILDING ADDITION EXEMPTION FROM ON--SITE DETENTION BASED ON NET INCREASE FOR 100 YR/24 HR EVENT OF LESS THAN 0 .5 CFS BASIN SUMMARY BASIN ID: EX10 NAME: EXISTING BASIN W 10 YR SBUH METHODOLOGY TOTAL_ AREA . . . . . . . = 0 .35 Acres BASEFLOWS: 0 .00 cfs RAINFALL TYPE . . . . : USER1 PERVIOUS AREA PRECIPITATION . . . . : 2 .90 inches AREA . . : 0 .13 Acres TIME INTERVAL . . . . : 10 .00 min CN . . . . : 86 .00 TIME OF CONC . . . . . : 14 .40 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .20 AREA . . : 0 .22 Acres CN . . . . 98 .00 TcReach -- Sheet L: 80 .00 ns:0 .1500 p2yr : 2 .00 s:0 .0088 PEAK RATE: 0 . 18 cfs VOL: 0 .07 Ac-ft TIME: 480 min BASIN ID: EX100 NAME : EXISTING BASIN W/ 100 YR SBUH METHODOLOGY TOTAL AREA . . . . . . . = 0 .35 Acres BASEFLOWS: 0 .00 cfs RAINFALL TYPE . . . . : USER1 PERVIOUS AREA PRECIPITATION . . . . : 3 .90 inches AREA . . : 0 . 13 Acres TIME INTERVAL . . . . 10 .00 min CN . . . . : 86 .00 TIME OF CONC . . . . . : 14 .40 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .20 AREA . . : 0 .22 Acres CN . . . . 98 .00 TcReach --Sheet L : 80 .00 ns:0 .1500 p2yr : 2 .00 s:0 .0088 PEAK RATE : 0 .26 cfs VOL: 0 .09 Ac--ft TIME : 480 min BASIN ID: EX2 NAME: EXISTING BASIN W/ 2 YR SBUH METHODOLOGY TOTAL AREA . . . . . . . : 0 .35 Acres BASEFLOWS: 0 .00 cfs RAINFALL TYPE . . . . : USER1 PERVIOUS AREA PRECIPITATION . . . . : 2 .00 inches AREA . . : 0 .13 Acres TIME INTERVAL . . . . : 10 .00 min CN . . . . : 86 .00 TIME OF CONC . . . . . : 14 .40 min IMPERVIOUS AREA ABSTRACTION COEFF : 0 .20 AREA . . : 0 .22 Acres CN . . . . 98 .00 1"cReach -- Sheet L : 80 .00 ns :0 .1500 p2yr : 2 .00 s:0 .0088 PEAK RATE : 0 . 12 cfs VOL : 0 .04 Ac-ft TIME: 480 min KING COUNTY. WASHINGTON, SURFACE WATER DESIGN NIANUAL TABLE 3.5 213 SCS WESTERN WASHINGTON RUNOFF CURVE NUMBERS SCS WESTERN WASHINGTON RUNOFF CURVE NUMBERS (Published by SCS in 1982) Runoff curve numbers for selected agricultural. suburban and urban land use for Type 1A rainfall distribution, 24-hour storm duration. CURVE NUMBERS BY HYDROLOGIC SOIL GROUP LAND USE DESCRIPTION A B C D Cultivated land(1): winter condition I 86 91 94 95 Mountain open areas: low growing brush and grasslands I 74 82 89 92 Meadow or pasture: 65 78 85 89 � I Wood or forest land: undisturbed or older second growth 42 64 76 31 Wood or forest land: young second growth or brush I 55 72 81 36 . Orchard: with cover crop i 81 38 92 94 i Open spaces, lawns, parks, golf courses, cemeteries, landscaping. good condition: grass cover on 75% or more of the area 68 80 86 90 fair condition: grass cover on 50% to 75% of the area I 77 85 90 92 i Gravel roads and parking lots 76 85 89 91 Dirt roads and parking lots 72 82 37 89 Impervious surfaces, pavement, roofs, etc. 98 98 98 98 Open water bodies: lakes, wetlands, ponds, etc. 100 100 100 100 Single Family Residential (2) Dwelling Unit/Gross Acre % Impervious (3) 1.0 DU/GA 15 Separate curve number 1.5 DU/GA 20 shall be selected 2.0 DU/GA 25 for pervious and 2.5 DU/GA 30 impervious portion 3.0 DU/GA 34 of the site or basin 3.5 DU/GA 38 4.0 DU/GA 42 4.5 DU/GA 46 5.0 DU/GA 48 5.5 DU/GA 50 6.0 DU/GA 52 6.5 DU/GA 54 7.0 DU/GA 56 Planned unit developments, % impervious condominiums, apartments, must be computed commercial business and industrial areas. (1) For a more detailed description of agricultural land use curve numbers refer to National Engineering Handbook, Section 4, Hydrology, Chapter 9, August 1972. (2) Assumes roof and driveway runoff is directed into street/storm system. (3) The remaining pervious areas (lawn) are considered to be in good condition for these curve numbers. 3.5.2-3 11/92 Short Plat (SHPL ii ) REQUEST FOR PROJECT # Prelim. Plat (PP# ) a CAG# t t To: Technical Services Date /�ys ��, /I?7 WO# 990641 Green# From: Plan Review/Project Manager �l {-o h M© ra 3 V-7, (� t I i Project Name ]p� l ��' S I `ea� (� t� `rvV��J� 5 T Ida Z 5 - Z a (70 characters max) Description of Project: d {'t -f- )7 �l Lt Owr,ej Circle Size of Waterline: 8" 10" 012- Circle One: New or Extension �823,L4-321tr 33,3 Ly /4.`�' aeslt,eE Circle Size of Sewerline: 8" 10" 12" Circle One: etv or Extension 5hcei 13 G�F .3 C&O i Circle Size of Stormline: 2' 15" G 4' Circle One: Netv�, or Extension Address or Street Name(s) 6 DvIpr/Contractor/Owner/Cnsit: 7o0-/ CD, 011 116 r/S v e v d PM F Lr V; 1,-T-tic- con 5lt j� LJ (70 characters max) Check each discipline involved in Project Ltr Drwg # of sheets per discipline O Trans-Storm PY / yck 4� -f-y -" (Roadway/Drainage) (Off site improvementsXinclude basin name) (include TESC sheets) _ 2C& -- ZCII Z _ 5Le-m-t5 J0 Transportation (Sig alizati Channelizatio f3 (ac t t--t 6r i-d 2 q O Wastewater /oCa cJ 1, c24kesWa-1e Are;S`40 _ _ 3GZ� Jamtary Sewer Main (include basin name) qC�;g� Z 3� 2Y�� Z_`/, �CGoCJ60I ,6,GZ,'Y ")YO/_) � 07, F-4)965 O Water Mons,Valves.Hydrantsy 1 Z — ���S �- (Include composite&Horizontal Ctrl Sheets) TS Use Only P 3 aL3 i-a33 k k a7 - X3 X 3 �� �23 P , P - Approved by TSM Date: Corms/misc/92-090.DOC/CD/bh