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HomeMy WebLinkAboutSWP272846 • 50Q- 2:1 ' 2��10 • • ��. Auld 0 • • • • DRAINAGE REPORT • • • HAZEN HIGH SCHOOL • 1' 11J 1J lJ 11111 1\\J v A-%1 11J 1 \ 1 1.7 • Proiect Number 73-99-157-00 • y • RL1rT 1"1'4 oIt-1-1 1-j D1S 1 R1L1 ilt). 'tVj • RENTON, WASHINGTON • • • • 4 • �C>�"�,oF wAsyfti Q�> �o�sa • NAL �' • CExPIRES �-ltr"eD • • • • • DLR Group • • Seattle, Washington • ITY OF RENTON (206) 461-6000 RECEIVED • • FEB 0 8 2000 • a.:usi'OMbel SERVICE • • Cl� O -ice C.� W 0 • • • • • • INTRODUCTION • r • The project consists of improvements to existing athletic fields. The fields that are being • modified are the softball, baseball, soccer, and the track. The scope of work includes the instillation of underdrains at different locations on site. It also includes some modification to the • existing irrigation system accommodate the new field improvements. • The facilities are owned by the Renton School District. The project is located in Renton, Washington and is bounded by the existing high school to the East, Duvall Ave SE to the West, • NE 121h Street to the north, and NE 10' Street to the south. No new impervious areas will be • added as a part of this project however some modification of the tennis court will be necessary • for improved drainage of this area. • No buildings will be demolished, modified, or constructed as a part of this project. • • • • • • • • • • • • • • • • • • • • • • • • • • • 4� 4� 4� EXISTING DRAINAGE CONDITIONS The entire property consists of approximately 34 acres, our project disturbs only 8.5 of thouse. • Although the site drains both toward Duvall street on the western side and 142"d on the eastern side it appears that these two drainage systems meet up about a half mile down stream. r According to the City of Renton drainage maps it appears that a stream along Sunset Blvd takes inflow from both of these minor sub-basins. • The Softball field tends to drain in a northeastern direction until it meets the neighboring property. The runoff from this area then runs due east toward the 142"d street right of way. Once there it enters the City of Renton conveyance system and travels north to Sunset Blvd. The stream next to Sunset Blvd runs westward, eventually entering Lake Washington. • Stormwater runoff from the baseball field is slightly more direct. The runoff in this area sheet flows across the field to the west where it flows down a small hill to Duvall Ave. Once on this street it enters the City of Renton conveyance system that travels north to the aforementioned • stream. The soccer field runoff is currently the least contained with the most potential for impacting the neighboring properties. The runoff from this field is split and travels both northerly and • northwesterly. The runoff to the north dumps down a hillside directly toward an existing house. • Evidence of seepage from the hillside was evident flowing toward the neighboring property at the time of investigation, in mid August. The flow leaving the site to the northwest also travels down a hill toward an apartment building. A drainage channel had been installed between our property and this building to intercept flows from our site and direct it away from the building to • the north. Each of these paths eventually lead to the stream adjacent to Sunset Blvd. • r� • _ `♦ \ \. 7Sbth AVE7RJE 8E'F.pWALC.AVE 87c _ -------------------------------------- • -�- __ __ __ _ __ -_ riw _ -_-_--_-- -_-` + V/ i---------_ l`r �•♦ �. -_�`' -------------- a ----------------- ________________________ `-' ---- ------------------- - ``♦ __ - '\ I iIl"'ll t /' I 11 11111 II; , r `` 1 1 I'illl III `+ • „ 1 ' •-' `♦ `` __-.---_ '__�' - --..- , ♦\7 iPr'1'y '1 a 1 ,� � i • i i -% - ------------------------------- ' 1111 ♦- ♦ -,1 K•11 +nyi u i / r S , • 11 - ------ ---- - � 1111 + i •'W --_ _______________________________________________-______- L- .----- ,1,1 1, , ♦ _------- -- -� ----,//;;//,II�,�� .._- - ;-�,—. ��. `` i � � � \♦ ,-� ►I,I,III I I' !� !- 'a aaea► 1 e•a a 1, • I l• �5fls PRE DEVELOPMENT DRAINAGE PATTERN 1 1 ❑❑ ❑ ❑ ❑ ❑ ❑ j b I 13 Not to Scale • s • --- '-------------^ :' % I 1 Ildal lwl Wool it �' '�' �r-`` ' 'I�• � . ^,- Ir I I ----------- _ _ % 7 • 142nd AVENUE&L 1 4� 4� -ice V1 ^� F�+� �`. `• �` 'N:, 14th AVEME tiE l.pINALL.AVE 8'£ .—..—..—..—..—..__.—.. —'—•— — — — -- qw _-- _----__x.----- _ ---------- a ---- k__ --` -- - % � / r(,';,'S'% •r tea. "�.`\o.�;`\\1c�'\ ---------------- ' n b^. � `�rC � _` �' •' - -- -- -_ -______ _!_ssT_.� ' �:s��t=a>a._:_?.?Jc'_c__`w.a-_i.?�=:CzV.:``- __ .ice_-_%__�.w:.-+----•::� -3s ---------- --t=_ _-__`__ - `.® 1 "`• 'ie``��. :7`sr r: — �' --`•' `-�`: •, �\ —-------- 't, \ A ' 1 0 -- l Ir. , ______-_�"___ , SEW, wa Y ,NMI II I _- 11 41.xJj'• 11 111 • 1;;;`��• _ .. i� / •ii4�ii 1 Ill;i;lll ` ------ ---------------------------------- '', 1 1 1 \- - ,1}♦\T` 1 1 ` / ;hlp 1111 I YrO ----------------------------- ' , 1 1 1 '\ /' ' �` 1I�;�•1\,, 1 1111,,,11 L_ =- ------ gym_.. --------- I � ��� - �• Illl,j I )I 1-1 1 1111 N `` _--_-- _ _ _ -- _ -_ __________�______________________________ _ ..:-..�:.-�_�r . •—s��•—P—•� . `. _ al '� ;\�' �`r'r=_i/"_�•.—_ •I lh:\\ ,j-'-- _>.!�- `—�_^T•1'��'�-�-��-C ---:''//' MJ \ ,` pI;la,\1;: .-'' r r' ♦ \;,,• -Y ---�A _ ---------------- 1 � 'itjilt ;; y---------------------- il�I i ;' I POST -DEVELC)PMENT - __ ------ ❑ ❑ ❑ o ❑ j �= i Not to scale DRAINAGE PATTERN 1 it l 0 0 00 0 ❑ ❑ 1 i • .rr ; ; 'Ile 5 i. `\ __- _ \; ' wlm/�•w•oloa 1 / �;�;; 1 r 1 i�� I / . , 1 1 it 11 i 1 i t L.-2.2 • -- --- - ulna Avg sE. � • • • • • • Drainage Calculations • • • • • • • • • • • • • • • • • • • • • • • • • • r • • • • • • • • DESIGN CRITERIA • City of Renton Development Regulations (Title 4) 1998 King County Surface Water Design Manual,1995 DETENTION SYSTEM The Santa Barbara Unit Hydrograph, a United States Soil Conservation Service (SCS), derived method will be used to develop rainfall hydrographs and calculate runoff. Software developed by King County, Washington was used to calculate hydrographs and to size the detention system. • DESIGN PARAMETERS The detention system was designed to handle flow according the following criteria: • 2 year 24 hour storm (2.10") Postdevelopment runoff to match predevelopment 10 year 24 hour storm (2.95") Postdevelopment runoff to match predevelopment 100 year 24 hour storm (4.00") system to convey postdeveloped runoff. The postdeveloped runoff was designed looking at each sub-basin separately this allowed us to use and maintain the natural drainage course as much as possible. Even though there was no addition of impervious area, the addition of underdrains significantly increases on the curve • number. Detention facilities were designed to keep the post-developed runoff at the same rate as • the pre-developed condition. The softball field has the addition of a quarter-acre of underdrainage as a part of the base project. If the alternate for this area is taken the area with underdrains becomes a half-acre. To • compensate for the increased runoff due to this underdrainage a detention pipe will be used to meter out the runoff. The length of detention pipe needed for the base bid system is 83 feet for the alternate 195 feet. Runoff will then be routed to the conveyance system in 142"d street. • The baseball field has no base bid underdrainage. In the alternate however some drainage will be added in the western corner of the field. A small pond was designed to detain and meter out the flow. A level spreader will be used to prevent concentrated flows from eroding the hillside. After leaving the level spreader the runoff in this area will follow the pre-development drainage • course. The underdrainage in the soccer field is all part of the base bid. The drainage from this field is to be detained in a 48"pipe 165 feet in length. In stead of continuing to direct flow from this field onto the neighboring properties. The outflow from the detention structure will be routed into an • `h existing storm drain manhole on 12street. 1, CALCULATION SUMMARY • 2 year, 24 hour rainfall: 2.10" 10 year, 24 hour rainfall: 2.95" 100 year, 24 hour rainfall: 4.00" • Curve Number for Pervious Area: 86 . Curve Number for Skinned Area: 89 Curve Number for Underdrained Area: 98 Time of Concentration: 10 minutes (pre &post development) Predevelopment Runoff(Softball) Undetained r . � 1.o 0.31 cfs G yyear, IA hour: 10 year, 24 hour: 0.57 cfs • 100 year, 24 hour 0.93 cfs • Postdeveloptuient Runoff(Softball) T a D L L; 1�010� Lridctairi%u Lewiiuon Release S 2 year, 24 hour: 0.36 cfs 0.31 cfs 10 year, 24 hour: 0.63 cfs 0.57 cfs 100 year, 24 hour: 0.98 cfs Postdevelopment Runoff(Softball Alternate) Undetained Detention Release 2 year, 24 hour: 0.44 cfs 0.31 cfs 10 year, 24 hour: 0.70 cfs 0.57 cfs • 100 year, 24 hour: 1.07 cfs Predevelopment Runoff(Baseball) Undetained 2 year, 24 hour: 0.61 cfs 10 year, 24 hour: 1.17 cfs 100 year, 24 hour: 1.90 cfs Postdevelopment Runoff(Baseball Alternate) Undetained Detention Release 2 year, 24 hour: 0.78 cfs 0.61 cfs 10 year, 24 hour: 1.34 cfs 1.17 cfs 100 year, 24 hour: 2.08 cfs Predevelopment Runoff(Soccer) Undetained ., 2 year, 24 hour: 0.96 cfs 10 year, 24 hour: 1.79 cfs 100 year, 24 hour: 2.83 cfs Postdevelopment Runoff(Soccer) Undetained Detention Release 2 year, 24 hour: 1.41 cfs 0.96 cfs 10 year, 24 hour: 2.25 cfs 1.79 cfs 100 year, 24 hour: 3.33 cfs Detention T ank (Softball) Diameter: 24" Required Volume from HYD program: 201 cubic feet Volume required x 30% increase: 261 cubic feet Volume provided: 83 if of tank: 261 cubic feet Control Structure: 12" • Orifice Size 2.35"top (1.0' above flow line) 3.31"bottom Detention Tank(Softball Alternate) Diameter: 24" • Required Volume from HYD program: 470 cubic feet Volume required x 30% increase: 611 cubic feet • Volume provided: 195 if of tank: 612 cubic feet r Control Structure: 12" . Orifice Size 2.45"top (1.15' above flow line) 3.31"bottom Detention Pond (Baseball Alternate) Design depth: 2.5' • Side slope 3:1 Required Volume from HYD program: 488 cubic feet i Volume required x 30% increase: 634 cubic feet Volume provided: Bottom Area Top Area 8.5'x8.5' 23.5'x23.5': 640 cubic feet Control Structure: 12" Orifice Size 4.83"top (1.95' above flow line) • 4.04"bottom Detention Tank (Soccer) Diameter: 48" Required Volume from HYD program: 201 cubic feet Volume required x 30% increase: 261 cubic feet Volume provided: 165 if of tank: 2072 cubic feet Control Structure: 12" Orifice Size 2.35" top (1.0' above flow line) " bottom V.) r- 14 CCU p_ L) P-4 .�i CIO �W 0 Z: • •--- ' 16 D LR G rou D Calculations • Date • Subject Computed . Checked Project Name Project Number Page (of pages) • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •: \CIVIL\PROGRAMS\HYD>hyd • • • KING COUNTY DEPARTMENT OF PUBLIC WORKS • Surface Water Management Division HYDROGRAPH PROGRAMS Version 4 . 21B 1 - INFO ON THIS PROGRAM • 2 - SBUHYD • 3 - MODIFIED SBUHYD 4 - ROUTE • 5 - ROUTE2 • 6 - ADDHYD 7 - BASEFLOW • o - PLOTI-IYD o - DATA 10 - RDFAC • 11 - RETURN TO DOS t NTER OPTION: •BUH/SCS METHOD FOR COMPUTING RUNOFF HYDROGRAPH OFTORM OPTIONS : 01 - S .C. S . TYPE-lA - 7-DAY DESIGN STORM - STORM DATA FILE *PECIFY STORM OPTION: � . C. S . TYPE-lA RAINFALL DISTRIBUTION NTER: FREW YEAR) , DURATION (HOUR) , PRECIP (INCHES) 024 2 . 1 ------- --- ------- ---------------------------------- •********************-S .C. S . TYPE-lA DISTRIBUTION ******************** •********* 2-YEAR 24-HOUR STORM **** 2 . 10" TOTAL PRECIP. ********* 0-- - - ------------------------------------------ ------------- - - ----- - --- OENTER: A(PERV) , CN (PERV) , A(IMPERV) , CN(IMPERV) , TC FOR BASIN NO . 1 • • • • • 0 . 16 86 . 25 89 10 WTA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 1 .4 1 . 2 86 . 0 . 3 89 . 0 10 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) • . 31 7 . 83 4901 WTER [d: ] [path] f i lename [ .ext] FOR STORAGE OF COMPUTED HYDROGRAPH: +sofe2 WECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP 0- - - - - - - -- - - - -- -- - - - - ------ ---- ----- ----------- - ----- - - - - -- - - -- - -- - -- - *TTER: A(PERV) , CN (PERV) , A (IMPERV) , CN (IMPERV) , TC FOP BASIN NO. 2 0. 16 86 0 . 25 98 10 *AY A PRINT-OUT: • Ak ,A (ACRES) P�;RVIOUS IMPERVIOUS TC (MINUTES) CN Civ • 1 . 4 i . ? 86 . 0 98 . 0 10 . 0 PEAK-Q ,-FS) T-PET_�(HRS) VOL (CU-FT) • . 36 7 . 83 5593 *,NTEx [d: ] [ '1 f.i l ename [ .ext] FOR STORAGE OF COMPUTED HYDROGRAPH: losofn2 lop,,, _ rY : C - CONTINUE, N_- NEWSTORM, P - PRINT, S - STOP OTORM OPTIONS : • - S . C. S . TYPE-lA - 7-DAY DESIGN STORM - STORM DATA FILE %PECIFY STORM OPTION: � .C. S . TYPE-lA RAINFALL DISTRIBUTION JWNTER: FREQ (YEAR) , DURATION (HOUR) , PRECIP (INCHES) -0 24 2 . 95 - - ------- --- -- - -- -- --------------- ------------ ----------- -- -- -- -- -- - - ******************* S .C. S . TYPE-1A DISTRIBUTION ******************** ********* 10-YEAR 24-HOUR STORM **** 2 . 95" TOTAL PRECIP . ********* -- -------------- ------- - - - - - - - ------ ------------ ------ NTER: A(PERV) , CN (PERV) , A (IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 & 16 86 0 . 25 89 di0 WTA PRINT-OUT: AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) . A CN A CN 0 1 .4 1 . 2 86 . 0 . 3 89 . 0 10 . 0 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) • . 57 7 . 83 8497 OTTER [d: ] [path] f i l ename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: 46sofel0 OPECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP 40- - - - - - - -- -- - - -- - - - -- --- - - - - - -- -- -- --- - ---- ------ - ----- ----- -- -- -- - --- ONTER: A (PERV) , CN (PERV) , A(IMPERV) , CN (I MPERV) , TC FOR BASIN NO. 2 * 16 86 0 . 25 98 10 O T7; PRINT-OUT: • AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) • A C i3 A CT3 0 1 .4 1 . 2 86 . 0 . 3 98 . 0 10 . 0 • PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) . . 63 7 . 83 9281 &NTER [d: ] [path] filename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: 4sofnl0 &PECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP W 46TORM OPTIONS : - S .C . S . TYPE-lA - 7-DAY DESIGN STORM - STORM DATA FILE WPECIFY STORM OPTION: OS . C. S . TYPE-lA RAINFALL DISTRIBUTION �NTER: FREQ (YEAR) , DURATION (HOUR) , PRECIP (INCHES) 100 24 4 . 00 ------ --- -------------------------------------------- ---- -- --- i******************** S .C. S . TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 4 . 00" TOTAL PRECIP . ********* _ ----------------------- -------- ---- --- - -- -- - ---- --- --- - -------- •ENTER: A(PERV) , CN (PERV) , A (IMPERV) , CN (IMPERV) , TC FOR BASIN NO. 1 0 0 0. 16 86 0 . 25 89 10 OTA PRINT-OUT : • AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN . 1 .4 1 . 2 86 . 0 . 3 89 . 0 10 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) • . 93 7 . 83 13275 ONTER [d: ] [path] filename [ .ext] FOR STORAGE OF COMPUTED HYDROGRAPH: Osofel00 OPECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP - -- - - -- -- - - - - - -- -- --- - --- -- ------ ------- -- --- ------- - -- ---- - - - - - - - --- ONTER: A(PERV) , CN (PERV) , A (I MPERV) , CN (IMPERV) , TC FOR BASIN NO. 2 1 . 16 86 0 . 25 98 10 DATA PRINT-OUT : AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) • A CN A CN 1 . 4 1 . 2 86 . 0 . 3 98 . 0 10 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 98 7 . 83 14130 ENTER [d: ] [path] f i 1 ename [ .ext] FOR STORAGE OF COMPUTED HYDROGRAPH: hsofn100 • SPECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP ! 10 R/D FACILITY DESIGN ROUTINE • SPECIFY TYPE OF R/D FACILITY: • 1 - POND 4 - INFILTRATION POND 2 - TANK 5 - INFILTRATION TANK S 3 - VAULT 6 - GRAVEL TRENCH/BED 02 ENTER: TANK DIAMETER (ft) , EFFECTIVE STORAGE DEPTH (ft) • 2 2 ENTER [d: ] [path] filename [ . ext] OF PRIMARY DESIGN INFLOW HYDROGRAPH: ksofnlO �RIMARY DESIGN INFLOW PEAK = . 63 CFS `INTER PRIMARY DESIGN RELEASE RATE (cfs) : •57 `NTER NUMBER OF INFLOW HYDROGRAPHS TO BE TESTED FOR PERFORMANCE (5 MAXIMUM) : 6 :NTER [d: ] [path] f ilename [ .ext] OF HYDROGRAPH 1 : sofn2 NTER TARGET RELEASE RATE (cfs) : 40. 31 *NTER: NUMBER OF ORIFICES, RISER-HEAD (ft) , RISER-DIAMETER (in) • 2 12 *ISER OVERFLOW DEPTH FOR PRIMARY PEAK INFLOW = . 16 FT •PECIFY ITERATION DISPLAY: Y - YES, N. - NO •PECIFY : R - REVIEW/REVISE INPUT, C - CONTINUE OUMMARY OF INPUT ITEMS 0) TYPE OF FACILITY : TANK �) TANK DIAMETER (ft) , STORAGE DEPTH (ft) : 2 . 00 , 2 . 00 �) VERTICAL PERMEABILITY (min/in) : . 00 PRIMARY DESIGN HYDROGRAPH FILENAME : hsofnl0 �) PRIMARY RELEASE RATE (cfs) : . 57 �) NUMBER OF TEST HYDROGRAPHS : 1 • TEST HYD 1 FILENAME : hsofn2 TARGET RELEASE (cfs) : . 31 �) NUMBER-OF-ORIFICES, RISER-HEAD (ft) , RISER-DIAM (in) : 1, 2 . 00 , 12 0 8) ITERATION DISPLAY: YES • NTER ITEM NUMBER TO BE REVISED (ENTER ZERO IF NO REVISIONS ARE REQUIRED) : • NTER: NUMBER OF ORIFICES, RISER-HEAD (ft) , RISER-DIAMETER (in) 2 12 • ISER OVERFLOW DEPTH FOR PRIMARY PEAK INFLOW = . 16 FT 4f SPECIFY: R - REVIEW/REVISE INPUT, C - CONTINUE UMMARY OF INPUT ITEMS • ) TYPE OF FACILITY: TANK TANK DIAMETER (f t) , STORAGE DEPTH (f t) : 2 . 0 0 , 2 . 00 �) VERTICAL PERMEABILITY (min/in) : . 00 �) PRIMARY DESIGN HYDROGRAPH FILENAME : hsofnl0 �) PRIMARY RELEASE RATE (cfs) : . 57 �) NUMBER OF TEST HYDROGRAPHS : 1 • TEST HYD 1 FILENAME : hsofn2 TARGET RELEASE (cfs) : . 31 �) NUMBER-OF-ORIFICES, RISER-HEAD (ft) , RISER-DIAM (in) : 2 , 2 . 00 , 12 �) ITERATION DISPLAY . YES WNTER ITEM NUMBER TO BE REVISED (ENTER ZERO IF NO REVISIONS ARE REQUIRED) : �0 •INITIAL STORAGE VALUE FOR ITERATION PURPOSES : 2340 CU-FT 0 0TTOM ORIFICE : ENTER Q-mui'i (cfs) �D,IA. = 3 . 31 INCHES WIFOP ORIFICE: ENTER HEIGHT (ft) DIA. = 2 . 35 INCHES •ITERATION COMPUTATION BEGINS . . . WRIAL TANK-LENGTH STOR-AVAIL STOR-USED PK-STAGE PK-OUTFLOW 1 744 . 8 2340 934 . 84 . 27 2 521 . 1 1637 820 1 . 00 . 30 3 391 . 2 1229 712 1 . 13 . 36 • 4 309 . 0 970 618 1 . 22 . 40 5 252 . 9 794 552 1 . 31 . 42 6 214 .4 673 501 1 . 39 . 44 • 7 186 . 9 587 464 1 .48 .46 8 167 . 4 525 434 1 . 54 . 48 9 152 . 9 480 411 1 . 60 .49 • 10 141 . 9 445 391 1 . 64 . 50 11 133 . 2 418 373 1 . 68 . 51 12 126 . 0 395 358 1 . 70 . 51 . 13 120 . 0 376 344 1 . 73 . 52 14 114 . 9 360 332 1 . 74 . 52 15 110 . 4 346 322 1 . 76 . 52 16 106 . 5 334 312 1 . 77 . 53 • 17 103 . 1 323 304 1 . 78 . 53 18 100 . 0 314 296 1 . 79 . 53 19 97 . 2 305 289 1 . 80 . 53 • 20 94 . 7 297 282 1 . 81 . 53 21 92 . 3 290 276 1 . 82 . 54 22 90 . 2 283 270 1 . 83 . 54 23 88 .2 277 265 1 . 84 . 54 24 86 . 3 271 260 1 . 84 . 54 25 84 . 6 265 255 1 . 85 . 54 • 26 82 . 9 260 250 1 . 86 . 54 27 81 . 4 255 246 1 . 86 . 54 • 08 79 . 9 251 242 1 . 86 . 54 a9 78 . 5 246 237 1 . 86 . 54 p 77 . 1 242 233 1 . 87 . 54 el 75 . 7 237 229 1 . 87 . 54 *2 74 . 4 233 226 1 . 88 . 55 3 73 . 2 230 223 1 . 89 . 55 &4 72 . 2 226 220 1 . 90 . 55 5 71 . 3 223 218 1 . 91 . 55 *6 70 . 5 221 216 1 . 92 . 56 4JB7 69 . 7 219 215 1 . 93 . 56 8 69 . 1 217 213 1 . 94 . 56 *9 68 . 6 215 212 1 . 94 . 56 040 68 . 1 213 211 1 . 95 . 56 •41 67 . 6 212 210 1 . 96 . 56 42 67 . 2 211 209 1 . 96 . 56 043 66 . 9 210 208 1 . 96 • 56 •44 66 . 6 209 207 1 . 97 . 56 45 66 . 3 208 206 1 . 97 . 56 046 66 . 1 207 206 1 . 97 . 57 •47 65 . 8 206 205 1 . 98 . 57 48 65 . 6 206 205 1 . 98 . 57 049 65 . 5 205 204 1 . 98 . 57 •50 65 . 3 205 204 1 . 98 . 57 51 65 . 1 204 Gp3 1 . 98 57 052 65 . 0 204 2p3 1 . 99 . 57 53 64 . 9 203 203 1 . 99 . 57 •54 64 . 8 203 202 1 . 99 . 57 055 64 . 7 203 202 1 . 99 . 57 56 64 . 6 202 202 1 . 99 . 57 •57 64 . 5 202 202 1 . 99 . 57 •58 64 . 5 202 202 1 . 99 . 57 1059 64 . 4 202 201 1 . 99 . 57 60 64 . 3 202 201 1 . 99 . 57 • 61 64 . 3 201 201 1 . 99 . 57 • 62 64 . 2 201 201 2 . 00 . 57 63 64 . 2 201 201 2 . 00 . 57 • 64 64 . 2 201 201 2 . 00 . 57 • 65 64 . 1 201 201 2 . 00 . 57 WERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: . 63 . 57 . 57 2 . 00 201 • TEST HYD 1 : . 36 . 31 . 31 1 . 03 100 • ORIF, E ENLARGE, S STOP PECIFY: D - DOCUMENT, R - REVISE, A - ADJUST - - • i • • • • • • • • • • • • 2RFORMANCE : INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE ODESIGN HYD : . 63 . 57 . 57 2 . 00 201 •TEST HYD 1 : . 36 . 31 . 31 1 . 03 100 •i RUCTURE DATA: R/D TANK (FLAT GRADE) •ISER-HEAD TANK-DIAM STOR-DEPTH TANK-LENGTH STORAGE-VOLUME • 2 . 00 FT 2 . 00 FT 2 . 00 FT 64 . 1 FT 201 CU-FT •OUBLE ORIFICE RESTRICTOR: DIA (INCHES) HT (FEET) Q-MAX (CFS) • BOTTOM ORIFICE : 3 . 31 . 00 . 420 TOP ORIFICE : 2 . 35 1 . 00 . 150 • 40 OUTING DATA: •TAGE (FT) DISCHARGE (CFS) STORAGE (CU-FT) PERM-AREA (SQ-FT) • 00 . 00 . 0 . 0 . 20 . 13 10 . 5 . 0 • . 40 . 19 28 . 7 . 0 • 60 . 23 50 . 8 . 0 . 80 . 27 75 . 3 0 • 1 . 00 . 30 100 . 7 . 0 • 1 . 00 . 30 100 . 7 . 0 1 . 20 . 39 126 . 2 0 • 1 . 40 . 45 150 . 6 . 0 • 1 . 60 . 49 172 . 8 . 0 . 53 191 . 0 0 • 2 . 00 . 57 201 . 5 . 0 • 2 . 10 . 90 201 . 5 . 0 2 . 20 1 . 48 201 . 5 . 0 • 2 . 30 2 . 22 201 . 5 . 0 • 2 . 40 3 . 03 201 . 5 . 0 2 . 50 3 . 33 201 . 5 . 0 • VERAGE VERTICAL PERMEABILITY: . 0 MINUTES/INCH OSPECIFY: F - FILE, N - NEWJOB, P - PRINT IF/OF, R - REVISE, S - STOP • • • • • • • • • • • • • DLR Group Calculations • Date • Subiect • Computed • Checked • Project Name • Project Number Page (of pages) � U OBUH/SCS METHOD FOR COMPUTING RUNOFF HYDROGRAPH gTORM OPTIONS : - S . C. S . TYPE-lA 7-DAY DESIGN STORM - STORM DATA FILE 40PECIFY STORM OPTION: 4P. C . S . TYPE-IA RAINFALL DISTRIBUTION �NTER: FREQ (YEAR) , DURATION (HOUR) , PRECIP (INCHES) 24 2 . 1 -- - - - -- - - - -- - - -- - ---- - - - - - - - --- ------ ---- --- -- -- --- - ---- --- -- --- - -- - - - •******************* S . C . S . TYPE-lA DISTRIBUTION ******** 2-YEAR 24-HOUR STORM **** 2 . 10" TOTAL PRECIP . ********* -- - - - - -- - - - - - - - - - - - - -- - ---- - - -- - - -- - - - - --- - - - -- --- - - -- - - - - - - - - - �NTER: A (PERV) , CN (PERV) , A (IMPERV) , CN (IMPERV) , TC FOR BASIN NO . 1 • 0 . 87 89 0 . 54 98 10 • DATA PRINT-OUT: AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) • A CN A CN 1 . 4 . 9 86 . 0 . 5 98 . 0 10 . 0 • PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) .44 7 . 83 6590 • ENTER [d: ] [path] filename [ .ext] FOR STORAGE OF COMPUTED HYDROGRAPH: esofa2 OPECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP 40TORM OPTIONS : - S . C. S . TYPE-lA 7-DAY DESIGN STORM - STORM DATA FILE OPECIFY STORM OPTION: 4R, . C. S . TYPE-lA RAINFALL DISTRIBUTION ONTER: FREQ (YEAR) , DURATION (HOUR) , PRECIP (INCHES) 410 24 2 . 9 - - - - - - - - ---- -- - - - - - - - - - ------ ---- - - - - - ---- --- --- --- - - - - - -- - -- - -- - - - - - - ******************* S . C. S . TYPE-lA DISTRIBUTION ******************** ******** 10-YEAR 24-HOUR STORM **** 2 . 90" TOTAL PRECIP . ********* - --- --- - - - - - - - -- -- - - -- - -- - --- ---- -- - -- - - - - - -- - - -- --- - - - - - - -- - - - NTER: A (PERV) , CN (PERV) , A (IMPERV) , CN (IMPERV) , TC FOR BASIN NO . 1 . 87 86 0 . 54 98 10 �ATA PRINT-OUT : AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) • A CN A CN 1 . 4 . 9 86 . 0 . 5 98 . 0 10 . 0 • PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) . 70 7 . 83 10205 h• NTER [d: ] [path] filename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: spfal0 • PECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP n vTORM OPTIONS : el - S .C. S . TYPE-lA - 7-DAY DESIGN STORM 3 - STORM DATA FILE •SPECIFY STORM OPTION: 1 •S . C. S . TYPE-1A RAINFALL DISTRIBUTION ENTER: FREQ (YEAR) , DURATION (HOUR) , PRECIP (INCHES) 0100 24 4 . 0 ------------- ------- ----------------------------------- -- ---- - •******************** S . C. S . -TYPE-lA DISTRIBUTION ******************** ********* 100-YEAR 24-HOUR STORM **** 4 . 00" TOTAL PRECIP. ********* 0- - - ------- - - - - ------- - ---- - - - -- - - - - -- - --- - -- - - - - - - ------- - ---- - ---- --- OENTER: A(PERV) , CN (PERV) , A (IMPERV) , CN (IMPERV) , TC FOR BASIN NO. 1 0 0 . 87 86 0 . 54 98 10 *,TA PRINT-OUT : AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) �. A CN A CN • 1 . 4 . 9 86 . 0 . 5 98 . 0 10 . 0 . PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 1 . 07 7 . 83 15413 WTER [d: ] [path] f i lename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: 4s(5fall •PECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP STORM OPTIONS : • 1 - S .C . S . TYPE-lA 2 - 7-DAY DESIGN STORM • 3 - STORM DATA FILE SPECIFY STORM OPTION: &JMMARY OF INPUT ITEMS 0 �) TYPE OF FACILITY: TANK TANK DIAMETER (ft) , STORAGE DEPTH (ft) : 2 . 00, 2 . 00 VERTICAL PERMEABILITY (min/in) : . 00 •) PRIMARY DESIGN HYDROGRAPH FILENAME : hsofal0 l PRIMARY RELEASE RATE (cfs) : . 57 4j) NUMBER OF TEST HYDROGRAPHS : 1 TEST HYD 1 FILENAME : hsofa2 TARGET RELEASE (cfs) 31 �) NUMBER-OF-ORIFICES, RISER-HEAD (ft) , RISER-DIAM (in) : 2 , 2 . 00 , 12 ITERATION DISPLAY : YES .. qV TER ITEM NUMBER TO BE REVISED (ENTER ZE n� TF -NT0 -P71TTCTlNS ARE REQUIRED) ; NITIAu STORAGE VALUE FOR ITERATION PURPOSES : 2844 CU-FT OTTOM ORIFICE : ENTER Q-MAX (cfs) *IA. = 3 . 31 INCHES OP ORIFICE : ENTER HEIGHT (ft) . 15 ODIA. = 2 .45 INCHES 4k TERATION COMPUTATION BEGINS . . . RIAL TANK-LENGTH STOR-AVAIL STOR-USED PK-STAGE PK-OUTFLOW 1 905 . 3 2844 1190 . 87 . 28 2 642 . 1 2017 1060 1 . 04 . 30 3 489 . 8 1538 951 1 . 19 . 35 4 396 . 3 1245 849 1 . 29 . 39 5 333 . 4 1047 773 1 . 39 .43 6 289 . 9 910 704 1 . 45 . 44 7 257 . 0 807 661 1 . 53 . 47 8 233 . 7 734 627 1 . 59 . 48 9 216 . 7 680 600 1 . 66 . 50 • 10 203 . 9 640 580 1 . 71 . 51 ll 194 . 3 610 564 1 . 75 . 52 • 12 186 . 9 587 550 1 . 78 . 52 13 181 . 2 569 540 1 . 81 . 53 14 176 . 6 554 531 1 . 84 . 54 15 172 . 8 542 523 1 . 86 . 54 16 169 . 7 533 517 1 . 88 . 55 17 167 . 1 525 511 1 . 90 . 55 18 165 . 0 518 506 1 . 92 . 55 19 163 . 2 512 502 1 . 93 . 56 20 161 . 6 507 499 1 . 94 . 56 • 21 160 . 3 503 496 1 . 95 . 56 • 22 159 . 2 500 494 1 . 95 . 56 i 023 158 . 3 497 491 1 . 96 . 56 24 157 . 4 494 489 1 . 96 . 56 025 156 . 7 492 487 1 . 97 . 56 4026 156 . 0 490 486 1 . 97 . 56 27 155 . 4 488 484 1 . 97 . 56 028 154 . 8 486 483 1 . 97 . 56 029 154 . 3 484 481 1 . 98 . 57 30 153 . 8 483 480 1 . 98 . 57 031 153 . 4 481 479 1 . 98 . 57 032 153 . 0 480 478 1 . 98 . 57 33 152 . 7 479 477 1 . 98 . 57 034 152 . 4 478 476 1 . 99 . 57 � 35 152 . 1 477 476 1 . 99 . 57 36 151 . 8 476 475 1 . 99 . 57 037 151 . 6 476 474 1 . 99 . 57 � 38 151 . 3 475 474 1 . 99 . 57 39 151 . 2 474 473 1 . 99 . 57 40 151 . 0 474 473 1 . 99 . 57 i 41 150 . 8 473 472 1 . 99 . 57 42 150 . 7 473 472 1 . 99 . 57 43 150 . 5 472 472 1 . 99 . 57 � 44 150 . 4 472 471 1 . 99 . 57 45 150 . 3 472 471 1 . 99 . 57 * 46 150 . 2 471 471 2 . 00 . 57 - , ^ '" 470 2 . 00 57 • 47 LDU . l ll � 48 150 . 0 471 470 2 . 00 . 57 0 49 149 . 9 470 470 2 . 00 . 57 ERFORMANCE : INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: . 70 . 57 . 57 2 . 00 470 TEST HYD 1 : . 44 . 31 . 31 1 . 10 260 SPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP ed ,PERFORMANCE : INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: . 70 . 57 . 57 2 . 00 470 • TEST HYD 1 : .44 . 31 . 31 1 . 10 260 STRUCTURE DATA: R/D TANK (FLAT GRADE) RISER-HEAD TANK-DIAM STOR-DEPTH TANK-LENGTH STORAGE-VOLUME 2 . 00 FT 2 . 00 FT 2 . 00 FT 149 . 9 FT 470 CU-FT *DOUBLE ORIFICE RESTRICTOR: DIA(INCHES) HT (FEET) Q-MAX (CFS) • BOTTOM ORIFICE: 3 . 31 . 00 .420 TOP ORIFICE : 2 . 45 1 . 15 . 150 i •ROUTING DATA: OSTAGE (FT) DISCHARGE (CFS) STORAGE (CU-FT) PERM-AREA (SQ-FT) . 00 . 00 . 0 . 0 . 20 . 13 24 . 5 . 0 . 40 . 19 67 . 1 . 0 . 60 . 23 118 . 8 . 0 . 80 . 27 175 . 9 . 0 1 . 00 . 30 235 . 5 . 0 • 1 . 15 . 32 280 . 3 . 0 1 . 20 . 36 295 . 0 . 0 0 1 . 40 . 43 352 . 1 . 0 1 . 60 . 48 403 . 9 . 0 1 . 80 . 53 446 . 4 . 0 2 . 00 . 57 470 . 9 . 0 2 . 10 . 90 470 . 9 . 0 2 . 20 1 . 48 470 . 9 . 0 2 . 30 2 . 23 470 . 9 . 0 2 . 40 3 . 03 470 . 9 • 0 2 . 50 3 . 33 470 . 9 • 0 0 ERAGE VERTICAL PERMEABILITY: . 0 MINUTES/INCH 41 •PECIFY: F - FILE, N - NEWJOB, P - PRINT IF/OF, R - REVISE, S - STOP • • • • • • • • • • • • • i • • • • • • • • '• ��� � � DLR Group • Calculations • Date • Subject . Computed - • Checked Project Name Project Number Page (of pages) • • • i / If . • • • • • • • • • • • • • • • • i • • • • 0 �C 1&: \CIVIL\PROGRAMS\HYD>hyd • KING COUNTY DEPARTMENT OF PUBLIC WORKS • Surface Water Management Division HYDROGRAPH PROGRAMS • Version 4 . 21B • 1 - INFO ON THIS PROGRAM 2 - SBUHYD 3 - MODIFIED SBUHYD 4 - ROUTE 5 - ROUTE2 6 ADDHYD . 7 - BA.gEFT,nw 8 - PLOTHYD 9 - DATA 10 - RDFAC 11 - RETURN TO DOS OENTER OPTION: 06BUH/SCS METHOD FOR COMPUTING RUNOFF HYDROGRAPH WTORM OPTIONS : - S .C. S . TYPE-lA - 7-DAY DESIGN STORM 03 - STORM DATA FILE WPECIFY STORM OPTION: �1 S .C. S . TYPE-lA RAINFALL DISTRIBUTION *ENTER: FREQ (YEAR) , DURATION (HOUR) , PRECIP (INCHES) •2 24 2 . 1 0 0 0 0 0 -- - - - - - -- - - - - - - - - - - - -- - - ------- --- --- --- -- - --- ------ --- --- - - --- - - -- - - - ******************* ******** 2-YEAR 24-HOUR STORM **** 2 . 10" TOTAL PRECIP . ********* - - -- -- - ---- - -- ------------------ ----- --------------- ------ ----- - - ---- G'NTER: A (PERV) , CN (PERV) , A (IMPERV) , CN (IMPERV) , TC FOR BASIN NO. 1 � . 95 86 0 98 10 4VATA PRINT-OUT : AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) i A CN A CN 3 . 0 3 . 0 86 . 0 . 0 98 . 0 10 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) . 61 7 . 83 9902 NTER [d: ] [path] filename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: ha2e2e !?L,` 5t .2e OPPECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP c - - - - - - - - - - -- -- ---- --- ----- -- -- - - W,TV 1 1\.TTE 7A (DER�7) rlTT (DWVW� Z1 (TMDERV) , CN (IMPERV) , TC FOR BASIN NO. 2 1 . 02 . 33 86 0 . 62 98 10 *DATA PRINT-OUT : AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 9 2 . 3 86 . 0 . 6 98 . 0 10 . 0 . PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) . 78 7 . 83 12035 *ENTER [d: ] [path] filename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH : �hbase2n SPECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP 0n *STORM OPTIONS : *1 - S .C . S . TYPE-lA •2 - 7-DAY DESIGN STORM 0 3 - STORM DATA FILE `SPECIFY STORM OPTION: 01 `S . C . S . TYPE-lA RAINFALL DISTRIBUTION ENTER: FREQ (YEAR) , DURATION(HOUR) , PRECIP (INCHES) 010 24 2 . 95 ------ - - - - - - ------------------------ - - ---- - - - - - - - - - - - -- ---- - - --- ******************** S .C. S . TYPE-lA DISTRIBUTION ******************** 10-YEAR 24-HOUR STORM **** 2 . 95" TOTAL PRECIP . ********* - -- - - - - - - ---------- --- --- ------ -- - - - -- ---------- -------- O ENTER : A (PERV) , CN (PERV) , A (IMPERV) , CN (IMPERV) , -TC-FOR BASIN N0. 1 � . 98 86 0 98 10 DATA PRINT-OUT: • AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 3 . 0 3 . 0 86 . 0 . 0 98 . 0 10 . 0 • PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 1 . 17 7 . 83 17509 WNTER [d: ] [path] f i lename [ .ext] FOR STORAGE OF COMPUTED HYDROGRAPH: • w • • • • • • • • • i 40 • • • • • • • • • s i • • • • • • • 0basl0e #APECIFY : C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP ---- - - - -- - -- - - ----- - ---- - ----- - ------- - ----- - ------ -- - ---- -- - - - *NTER: A(PERV) , CN (PERV) , A(IMPERV) , CN (IMPERV) , TC FOR BASIN NO. 2 0 . 33 86 0 . 62 98 10 *ATA PRINT-OUT : • AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN • 2 . 9 2 . 3 86 . 0 . 6 98 . 0 10 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 1 . 34 / . 83 19805 *NTER [d: ] [path] filename [ .ext] FOR STORAGE OF COMPUTED HYDROGRAPH: Wbasl0n *PECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP W WTORM OPTIONS : 0 S . C . S . TYPE-lA - 7-DAY DESIGN STORM - STORM DATA FILE PECIrY STORM CPTION: 0100 24 4 . 0 NORM OPTIONS : 0 1 - S . C. S . TYPE-lA - 7-DAY DESIGN STORM �3 - STORM DATA FILE •SPECIFY STORM OPTION: W OS . C. S . TYPE-lA RAINFALL DISTRIBUTION ,ENTER: FREQ (YEAR) , DURATION (HOUR) , PRECIP (INCHES) 100 24 4 . 0 - - -------- - -- -- --- ------------ -------------------------- -------- ------ ,******************** S .C. S . TYPE-1A DISTRIBUTION ******************** 100-YEAR 24-HOUR STORM **** 4 . 00" TOTAL PRECIP. ********* --- -==--------------------- ----------------------------- ------- ENTER: A(PERV) , CN (PERV) , A(IMPERV) , CN (IMPERV) , TC FOR BASIN NO. 1 02 . 95 86 0 98 10 *DATA PRINT-OUT: AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) • A CN A CN 3 . 0 3 . 0 86 . 0 . 0 98 . 0 10 . 0 • PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) 1 . 90 7 . 83 27249 • • TER [d: ] [p ath] filename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: aslle •PECIFY : C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP -- - - -- -- - - - - -- ---- - --- ---- ---- -- --- - ------- -------- -- - - - - - --- -- NTER: A (PERV) , CN (PERV) , A (IMPERV) , CN (IMPERV) , TC FOR BASIN NO . 2 . 33 86 0 . 62 98 10 0 �ATA PRINT-OUT : • AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 2 . 9 2 . 3 86 . 0 . 6 98 . 0 10 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 2 . 08 7 . 83 29992 NTER [d: ] [path] filename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH : baslln PECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP 40 •UMMARY OF INPUT ITEMS •) TYPE OF FACILITY: POND (3 . 0 : 1 SIDE SLOPES) STORAGE DEPTH (f t) : 2 . 50 �) VERTICAL PERMEABILITY (min/in) : . 00 PRIMARY DESIGN HYDROGRAPH FILENAME : hbasion PRIMARY RELEASE RATE (c f s) : 1 . 17 �) NUMBER OF TEST HYDROGRAPHS : 1 PEST HYD 1 FILENAME : hbase2n TARGET RELEASE (cfs) : . 61 �) NUMBER-OF-ORIFICES, RISER-HEAD (ft) , RISER-DIAM (in) : 2 , 3 . 00 , 12 �) ITERATION DISPLAY: YES i *NTER ITEM NUMBER TO BE REVISED (ENTER ZERO IF NO REVISIONS ARE REQUIRED) : i7 � m�r rTTT nn L�C'n nn TVTfl DTcVU_uD (ft ) DTQEEATA-T1TLmpr7pR ! in) 1V1AfC: LV 11 VBEn V1' Vll l 1' 11.. uu , � . 2 . 5 12 W,ISER OVERFLOW DEPTH FOR PRIMARY PEAK INFLOW = . 27 FT WPECIFY: R - RE VT INPUT, C - CONTINUE OGUMMARY OF INPUT ITEMS i 01) TYPE OF FACILITY: POND (3 . 0 : 1 SIDE SLOPES) STORAGE DEPTH (f t) : 2 . 50 VERTICAL PERMEABILITY (min/in) : . 00 •) PRIMARY DESIGN HYDROGRAPH FILENAME : hbasl0n W5) PRIMARY RELEASE RATE (c f s) : 1 . 17 •6) NUMBER OF TEST HYDROGRAPHS : 1 TEST HYD 1 FILENAME : hbase2n TARGET RELEASE (cfs) : . 61 07) NUMBER-OF-ORIFICES, RISER-HEAD (ft) , RISER-DIAM (in) : 2 , 2 . 50 , 12 �8) ITERATION DISPLAY: YES *ENTER ITEM NUMBER TO BE REVISED (ENTER ZERO IF NO REVISIONS ARE REQUIRED) : 00 •INITIAL STORAGE VALUE FOR ITERATION PURPOSES : 4851 CU-FT ,*BOTTOM ORIFICE : ENTER Q-MAX (cfs) 7 044 45 . 5 569 559 2 . 48 1 . 16 45 44 . 5 564 554 2 . 48 1 . 16 *46 43 . 6 559 549 2 . 48 1 . 16 *47 42 . 7 554 545 2 . 48 1 . 16 48 41 . 9 549 541 2 . 48 1 . 16 •49 41 . 2 545 537 2 . 48 1 . 16 •50 40 . 5 541 534 2 . 48 1 . 16 51 39 . 8 537 530 2 . 48 . 16 *52 39 . 2 534 527 2 . 48 . 16 •53 38 . 6 530 524 2 .48 1 . 16 54 38 . 0 527 521 2 . 49 1 . 16 = 55 37 . 5 524 518 2 . 49 1 . 16 • 56 37 . 0 521 516 2 . 1 . 16 57 36 . 5 518 513 . 49 1 . 16 � 58 36 . 0 516 511 2 . 49 1 . 16 59 35 . 6 513 508 2 . 49 1 . 16 60 35 . 2 511 506 2 . 49 1 . 16 � 61 34 . 8 08 5 4 2 . 49 1 . 16 62 34 . 4 5 6 02 2 . 49 1 . 16 63 34 . 0 50 500 2 . 49 1 . 16 • 64 33 . 7 50A / 498 2 . 49 1 . 16 . 65 33 . 4 500 497 2 . 49 1 . 16 . 66 33 . 1 498 f 495 2 . 49 1 . 16 n Q" X n n n a 1 16 67 32 . 8 �� � ZJJ G . ZJ 49 \ 492 2 . 49 1 . 16 • J J G J 69 32 . 2 4 3 \ 490 2 . 49 1 . 17 7^v 32 . 0 92 489 2 . 49 1 . 17 71 31 . 8 491 488 2 . 49 1 . 17 72 31 . 6 489 487 2 . 49 1 . 17 73 31 . 4 i 488 486 2 . 50 1 . 17 74 31 . 2 487 486 2 . 50 1 . 17 75 31 . 1 487 85 2 . 50 1 . 17 • 76 31 . 0 486 4 2 . 50 1 . 17 • 77 30 . 9 485 484 2 . 50 1 . 17 78 30 . 485 483 2 . 50 1 . 17 79 30 . 7 484 483 2 . 50 1 . 17 80 . 6 484 483 2 . 50 1 . 17 81 0 . 5 483 482 50 1 . 17 82 30 . 5 483 482 2 . 0 1 . 17 . 83 30 . 4 482 482 2 . 5 1 . 17 84 30 . 4 482 481 2 . 50 1 . 17 85 30 . 3 482 481 2 . 50 1 . 17 86 30 . 3 481 481 2 . 50 1 . 17 PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLO E . DESI N �7�8 �6�2 2 . 50 481 TEST HYD 1 : . 61 1 . 90 260 *SPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP *a *BOTTOM ORIFICE : ENTER Q-MAX (cfs) 70 •DIA. = 4 . 04 INCHES *TOP ORIFICE : ENTER HEIGHT (ft) *1 . 95 DIA. = 4 . 83 INCHES * *ITERATION COMPUTATION BEGINS . . . 3 0 G4 M [� r-I 00 N O l0 (:0 N d' Ln L` CO m O H (N M M •� cr d' II) Ln Ln Ln In Ln Ln Ln Ln Ln In Ln Ln Ln Ln Ln Ln Lf) Ln Ln Lf) CD C0 CD w l0 CD w � CD lD l0 l0 C0 � � � H lf) M to [- 00 Ol Cl 0) O O O O O O �l H -i -i H •-i H ri ri H H H H H ri H H H H H H H H H H H r-I H H H H ri H H H H H ri 0 ri rI rl r HrI ri rI ri r 1 1 rI i ri ri rI r rI rI H rI ri rI rI ri rI -4, ri r-I r i r I rI ri HrI r I I r1 H H rI rI r-i rI rI . 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TYPE-lA 7-DAY DESIGN STORM •3 - STORM DATA FILE 4kPECIFY STORM OPTION: a 0S .C. S . TYPE-lA RAINFALL DISTRIBUTION *ENTER: FREQ (YEAR) , DURATION (HOUR) , PRECIP (INCHES) 24 2 . 1 - -- - --- ---- ---- -- - -------------------------------------- - - ------ -- -- -- ******************* S . C. S . TYPE-lA DISTRIBUTION ******************** •********* 2-YEAR 24-HOUR STORM **** 2 . 10" TOTAL PRECIP. ********* --------- ----------------------------- ------------------------- �NTER: A(PERV) , CN (PERV) , A(IMPERV) , CN (IMPERV) , TC FOR BASIN NO. 1 • • • • • • • • • . 4 89 2 . 6 86 6 DATA PRINT-OUT: • AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN • 4 . 0 1 . 4 89 . 0 2 . 6 86 . 0 6 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) • . 96 7 . 83 14381 ONTER [d: ] [path] filename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: 0soce2 OPECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP - - - - - - - - - --- - - - - - -- - - - - -- -- ----- -- - - -- -- -- - - - -- - -- ---- -- - - -- - - - - ------ ONTER : A (PERV) , CN (PERV) , A(IMPERV) , CN (IMPERV) , TC FOR BASIN NO. 2 0 . 1 86 1 . 9 98 6 QATA PRINT-OUT: • AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN • 4 . 0 2 . 1 86 . 0 1 . 9 98 . 0 6 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) • 1 . 41 7 . 67 19975 ONTER [d: ] [path] f i lename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: Osocn2 O-PECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP *TORM OPTIONS : - S .C. S . TYPE-lA - 7-DAY DESIGN STORM - STORM DATA FILE WPECIFY S'i'ORM OPTION: 0 4k . C. S . TYPE-!A RAINFALL DISTRIBUTION WNTER: FREQ (YEAR) , DURATION (HOUR) , PRECIP (INCHES) ' 0 24 2 . 95 w-- - - - - - - - - - - - - - - - -- -- - ---- - - - - -- - - - - - - - - - - ---- - --- -- - - -- - - -- - - - - - - - - -- ******************* S .C. S . TYPE-lA DISTRIBUTION ******************** •********* 10-YEAR 24-HOUR STORM **** 2 . 95" TOTAL PRECIP . ********* ------ -- -- - ------------------- --------- -------------- -- -------- NTER: A(PERV) , CN (PERV) , A (IMPERV) , CN (IMPERV) , TC FOR BASIN NO. 1 0. 4 89 2 . 6 86 6 DATA PRINT-OUT: • AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 4 . 0 1 . 4 89 . 0 2 . 6 86 . 0 6 . 0 PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 1 . 76 7 . 83 24711 ONTER [d: ] [path] f ilename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH : Osocel0 O-pECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP - --- - - -- - --- --- - -------- ------------ - ------ ---- ----- -- - --- ---- - �ivTER: A (PERV) , CN (PERV) , A(IMPERV) , CN (IMPERV) , TC FOR BASIN NO. 2 0. 1 86 1 . 9 98 6 4RATA PRINT-OUT : • AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN 4 . 0 2 . 1 86 . 0 1 . 9 98 . 0 6 . 0 • PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) 2 . 25 7 . 67 31095 4?NTER [d: ] [path] f ilename [ .ext] FOR STORAGE OF COMPUTED HYDROGRAPH : Osocn2 ILE ALREADY EXIST; OVERWRITE (Y or N) ? NTER [d: ] [path] f i lename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: socn10 •PFCCTFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP �TORM OPTIONS : - S . C. S . TYPE-!A - 7-DAY DESIGN STORM - STORM DATA FILE PECIFY STORM OPTION: - C . S . TYPE-lA RAINFALL DISTRIBUTION LATER: FREQ (YEAR) , DURATION (HOUR) , PRECIP (INCHES) 000 24 4 . 0 -------- ------ - ------------------------------------------ --- ---- - - TYPE-lA DISTRIBUTION ******************** ******** 100-YEAR 24-HOUR STORM **** 4 . 00" TOTAL PRECIP. ********* - - ----- ---- - ----- ------------- ---- ------ ---------------------- ---- - - WNTER: A(PERV) , CN (PERV) , A (IMPERV) , CN(IMPERV) , TC FOR BASIN NO. 1 1 . 4 89 2 . 6 86 *ATA PRINT-OUT: • AREA(ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN . 4 . 0 1 . 4 89 . 0 2 . 6 86 . 0 6 . 0 • PEAK-Q (CFS) T-PEAK(HRS) VOL (CU-FT) • 2 . 83 7 . 67 38377 *NTER [d: ] [path] filename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH: 4psocel00 114PECIFY: C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP low - - - -- - - - - -- -- -- - ---- - ----- -- -- - - ------ -- - --- - - ----- - - - - -- ---- -- ENTER: A (PERV) , CN (PERV) , A(IMPERV) , CN (IMPERV) , TC FOR BASIN NO. 2 Ilp . 1 86 1 . 9 98 6 11CATA PRINT-OUT : • AREA (ACRES) PERVIOUS IMPERVIOUS TC (MINUTES) A CN A CN • 4 . 0 2 . 1 86 . 0 1 . 9 98 . 0 6 . 0 PEAK-Q (CFS) T-PEAK (HRS) VOL (CU-FT) 3 . 33 7 . 67 45377 ENTER [d: ] [path] f i lename [ . ext] FOR STORAGE OF COMPUTED HYDROGRAPH : j1zsocn100 •SPECIFY : C - CONTINUE, N - NEWSTORM, P - PRINT, S - STOP 49 40 KING COUNTY DEPARTMENT OF PUBLIC WORKS • Surface Water Management Division . HYDROGRAPH PROGRAMS • Version 4 . 21B 1 - INFO ON THIS PROGRAM • 2 - SBUHYD 3 - MODIFIED SBUHYD 40 4 - ROUTE • 5 - ROUTE2 6 - ADDHYD 40 7 - BASEFLOW • 8 - PLOTHYD 9 - DATA 40 10 - RDFAC 40 11 - RETURN TO DOS &UMMARY OF INPUT ITEMS S ) TYPE OF FACILITY: TANK TANK DIAMETER (ft) , STORAGE DEPTH (ft) : 4 . 00 , 4 . 00 VERTICAL PERMEABILITY (min/in) : . 00 • ) PRIMARY DESIGN HYDROGRAPH FILENAME : hsocnl0 PRIMARY RELEASE RATE (cfs) : 1 . 76 • ) NUMBER OF TEST HYDROGRAPHS : 1 TEST HYD 1 FILENAME : hsocn2 TARGET RELEASE (cfs) : . 96 •) NUMBER-OF-ORIFICES, RISER-HEAD (ft) , RISER-DIAM (in) : 2 , 4 . 00 , 12 �) ITERATION DISPLAY: YES r+ rir�clTnr�71 (ENTER 17L'n� TU TTr, DL17TS'IIJT�C rpE VWr)TTTT? Tll LATER !TENT NUMBER TO BE REVISED 1SED (E iER �,�t�v iL Lvv . _v i �NITiAL STORAGE VALUE FOR ITERATION PURPOSES : 9714 CU-FT BOTTOM ORIFICE : ENTER Q-MAX (cfs) ODIA. = 4 . 80 INCHES OP ORIFICE : ENTER HEIGHT (ft) . 35 ODIA. = 3 . 83 INCHES SI TERATION COMPUTATION BEGINS . . . •RIAL TANK-LENGTH STOR-AVAIL STOR-USED PK-STAGE PK-OUTFLOW 1 773 . 0 9714 3916 1 . 69 . 81 2 542 . 3 6815 3507 2 . 05 . 89 • 3 410 . 7 5161 3200 2 . 38 1 . 02 4 332 . 7 4180 2870 2 . 60 1 . 18 5 280 . 6 3525 2631 2 . 80 1 . 31 . 6 245 . 0 3078 2457 2 . 98 1 . 39 7 220 . 3 2768 2319 3 . 13 1 .45 8 202 . 4 2543 2218 3 . 26 1 . 51 9 189 . 5 2381 2138 3 . 38 1 . 55 10 179 . 8 2259 2074 3 .47 1 . 58 11 172 . 5 2167 2023 3 . 54 1 . 61 • 12 166 . 8 2095 1982 3 . 59 1 . 63 13 162 . 3 2039 1945 3 . 65 1 . 65 14 158 . 6 1992 1909 3 . 68 1 . 66 • 15 155 . 3 1950 1876 3 . 71 1 . 66 16 152 . 3 1913 1846 3 . 73 1 . 67 17 149 . 6 1880 1821 3 . 76 1 . 68 • 18 147 . 3 1851 1800 3 . 79 1 . 69 19 145 . 3 1825 1782 3 . 82 1 . 70 20 143 . 6 1803 1765 3 . 84 1 . 71 . 21 142 . 0 1784 1751 3 . 86 1 . 71 22 140 . 7 1768 1738 3 . 87 1 . 72 W3 139 . 5 1753 1727 3 . 89 1 . 72 *4 138 . 5 1740 1717 3 . 90 1 . 73 5 137 . 6 1728 1707 3 . 90 1 . 73 026 136 . 7 1718 1698 3 . 91 1 . 73 �27 136 . 0 1708 1690 3 . 92 1 . 73 i�8 135 . 2 1699 1682 3 . 93 1 . 74 029 134 . 6 1691 1676 3 . 93 1 . 74 30 134 . 0 1683 1669 3 . 94 1 . 74 W31 133 .4 1676 1663 3 . 94 1 . 74 032 132 . 9 1670 1658 3 . 95 1 . 74 33 132 . 5 1664 1653 3 . 95 1 . 74 W34 132 . 0 1659 1648 3 . 95 1 . 74 035 131 . 6 1653 1644 3 . 96 1 . 75 36 131 . 3 1649 1640 3 . 96 1 . 75 �37 130 . 9 1645 1637 3 . 96 1 . /5 038 130 . 6 1641 l0'33 3 . 97 1 . 75 39 130 . 3 1637 1630 3 . 97 1 . 75 040 130 . 0 1634 1627 3 . 97 1 . 75 041 129 . 8 1630 1625 3 . 9 / 1 . 75 .42 129 . 6 1628 1622 3 . 97 1 . 75 43 129 . 3 1625 1620 3 . 98 1 . 75 044 129 . 1 1622 1618 3 . 98 1 . 75 •45 129 . 0 1620 1616 3 . 98 1 . 75 46 128 . 8 1618 1614 3 . 04 1 . 75 04 / i28 . 6 1616 1612 3 . 98 1 . 75 48 128 . 5 1614 1611 3 . 98 1 . 75 �49 128 . 3 1612 1609 3 . 98 1 . 75 050 128 . 2 1611 1608 3 . 99 1 . 76 51 128 . 1 1609 1606 3 . 99 1 . 76 052 120 . 0 1608 1605 3 . 99 1 . 76 053 127 . 9 1606 1604 3 . 99 1 . 76 •54 127 . 8 1605 1603 3 . 99 1 . 76 55 127 . 7 1604 1602 3 . 99 1 . 76 �56 127 . 6 1603 1601 3 . 99 1 . 76 • 57 127 . 5 1602 1600 3 . 99 1 . 76 58 127 . 5 1601 1599 3 . 99 1 . 76 � 59 127 . 4 1600 1599 3 . 99 1 . 76 *ERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE DESIGN HYD: 2 . 25 1 . 76 1 . 76 3 . 99 1599 • TEST HYD 1 : 1 . 41 . 96 . 96 2 . 35 970 OPECIFY: D - DOCUMENT, R - REVISE, A - ADJUST ORIF, E - ENLARGE, S - STOP WERFORMANCE : INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE • DESIGN HYD: 2 . 25 1 . 76 1 . 76 3 . 99 1599 TEST HYD 1 : 1 .41 . 96 . 96 2 . 35 970 •STRUCTURE DATA: R/D TANK (FLAT GRADE) • ISER-HEAD TANK-DIAM STOR-DEPTH TANK-LENGTH STORAGE-VOLUME 4 . 00 FT 4 . 00 FT 4 . 00 FT 127 .4 FT 1599 CU-FT • OUBLE ORIFICE RESTRICTOR: DIA (INCHES) HT (FEET) Q-MAX (CFS) BOTTOM ORIFICE : 4 . 80 . 00 1 . 250 TOP ORIFICE: 3 . 83 2 . 35 . 510 •ROUTING DATA: •TAGE (FT) DISCHARGE (CFS) STORAGE (CU-FT) PERM-AREA(SQ-FT) . 00 . 00 . 0 . 0 • .40 . 40 83 . 3 . 0 . 80 . 56 227 . 9 • 0 1 . 20 . 68 403 . 9 0 • 1 . 60 . 79 598 . 0 . 0 • 2 . 00 . 88 800 .4 • 0 2 . 35 . 96 977 . 8 • 0 • 2 . 40 1 . 06 1002 . 9 • 0 • 2 . 80 1 . 31 1196 . 9 • 0 3 . 20 1 . 48 1372 . 9 • 0 • 3 . 60 1 . 63 1517 . 5 • 0 • 4 . 00 1 . 76 1600 . 8 • 0 4 . 10 2 . 10 1600 . 8 • 0 • 4 . 20 2 . 69 1600 . 8 0 • 4 . 30 3 . 45 1600 . 8 • 0 4 . 40 4 . 27 1600 . 8 • 0 • 4 . 50 4 . 58 1600 . 8 • 0 tVERAGE VERTICAL PERMEABILITY: . 0 MINUTES/INCH • PECIFY : F - FILE, N - NEWJOB, P - PRINT IF/OF, R - REVISE, S - STOP -KIP Short Plat'(SHPL#* REQUEST FOR PROTECT R Prelim Plat (PP# CAG# ) To: Technical Services Date _ aiJ WO# Grccn# From: Plan Review/Project Manager /� 27 r Project Name _,-- (lo characters n=) Description of Project: S Circle Size of Waterline: 8" 10" 12" Circle One: New or Extension Circle Size of Sewerline: 8" 10" 12" Circle One: New or Extension Circle Size of Stormline: 12" 15" 18" 24" Circle One: New or Extension Address or Street Names) ZZO Dvlpr/Contractor/Owner/Cnslt:: �-- ()0 characters mu) Check each discipline involved in Project Ltr Drwg #of sheets per discipline Trans-Storm (Roadway( rairugc) (Off site improvemcnts)(includc basin name) (include TESC sheds) ❑ Transportation (Signalizadon•Chsrinclization.lighting) ❑ ❑ ❑ Wastewater ❑ ❑ — Sanitasy sewer Main(include basin name) ❑ Water (Mains.valves.Hydrants) ❑ ❑ (Includc composite do Horizontal Cui Shee(s) Suface Water ❑ Cmprovements (CLP ONLY)(includc basin name) TS Use Only