HomeMy WebLinkAboutSWP272153(1) TECHNICAL INFORMATION REPORT
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BUSH, ROED &HITCHINGS, INC.
2009 MINOR AVENUE EAST
SEATTLE,WASHINGTON
(206) 323-4144
BRH JOB NO.
DATEp�',
ll R'I�C'L-1 v"0
Nov 2,9 1993
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ON-SITE STORM WATER ANALYSIS
There are two sources for storm water discharge from the site.
The first is from the Windsor Place Apartments and the second
from onsite storm water run-off. The storm water discharge from
the Windsor Place Apartments currently flow onto the site through
a 30 inch diameter culvert and then is conveyed across the site
within a ditch. The ditch bottom is approximately 5 foot wide.
A gravel driveway crosses the ditch within the Safeway site. At
this location two culverts , a 12 and 10 inch CMP, convey the
storm water beneath the driveway. From this point the storm
water is conveyed in a southwesterly direction across the site
until it is collected by a 48 inch culvert located just west of
the Water District 90 pump house. This culvert conveys the storm
water run-off from the Windsor Place Apartments and the subject
site to the downstream system.
The open drainage ditch across the Safeway site will be tight
,�- lined. This concept was discussed with Neil Watts when we first
�1 stated researching the site. It was Neil's opinion that a tight
line system could be installed. Since no additional storm water
will added to the tight line pipe within the Safeway site, the
pipe size will be based on the connection point pipe size. Tight
line conveyance of the Windsor Apartments will not impact the
downstream capacity. Therefore only onsite storm water run-off
mitigation will be required.
The storm water run-off from the developed Safeway site will be
conveyed to a storm water detention/wet vault combination. The
design of the facility is according to the 1990 King County
Surface Water Design Manual . A water quality vault was selected
because the site is within the aquifer protection zone. The
vault will have better containment potential than an open pond
with a 40 mil liner. Storm water will be discharged from the
vault at the pre-developed peak rate into a biofiltration swale.
The biofiltration swale will convey the storm water to the 48 w z
inch diameter culvert which discharges into the downstream sys-
tem.
DOWNSTR 49
Storm water run-off from the Safeway site and the Windsor Apart-
ments will be conveyed beneath Northeast 4th Street within a 48
inch concrete culvert. The inlet of the culvert is located just
west of the Water District 90 pump house. The culvert inlet pro-
jects out of 6 to 7 foot high ecology block wall . The proposed
development would set a manhole at this location for connection
of the Windsor Apartments tight line pipe. A smaller inlet pipe
would be connected to the manhole for the Safeway biofiltra
swale discharge.
On the south side of Northeast 4th Street the 48 inch culvert
discharges into an open ditch. The ditch has a 5 foot wide
bottom and is approximately 4 to 6 feet deep. Within the banks
of the ditch there is a thick growth of grassed and blackberries.
The ditch conveys the storm water southward for approximately 100
feet and then turns west. The ditch flows westward for approx-
imately 100 feet and then turns southward again. The ditch con-
tinues southward until it flows into what appears to be an open
detention system for a residential subdivision. The detention
facility has a 42 3nch outlet pipe which conveys the storm water
beneath Bremerton Place Northeast just north of Northeast 1st
Place.
4 The proposed development of the Safeway store will not signifi-
cantly impact the downstream system. Both water quantity and
quality controls will be constructed at the source. The Safeway
site represents only a minimal portion of the area tributary to
the open ditch. Design standards implemented by the City of
Renton will adequately protect the existing downstream course.
TEMPOWY JEROSION CON`j'ROL
Erosion control measures will be implemented during site grading.
A temporary sedimentation control pond will be installed in the
vicinity of the proposed detention system. The pond will be
sized to accomidate the construction of the detention vaults and
biofiltration swales . Therefore the storm water volume will be
excess of the 100 year volume for a developed site. Interceptor
swales with rock check dams will be constructed on the perimeter
of the site. The interceptor swales will convey the storm water
to the sedimentation control pond.
Filter fabric fence will be installed along the western boundary
and along Northeast 4th Street from the pump house south. In
these location the onsite grades will be approximately the same
as the adjacent property. The interceptor swales along the
boundary will collect the drainage. Therefore the primary func-
tion of the filter fabric fence will be to deter vehicular traf-
fic from entering the site.
The sedimentation and erosion control measures will be designed
in accordance with the BMP's outline in the King County design
manual . Installation of the sedimentation and erosion control
facilities will minimize the amount of silt laden storm water
run-off leaving the site.
file 93178 .dsa
SHEET NO. 11
KjVr COUNTY AREA, WASHINGTON
(RENTON QUADRANGLE)
)UAH 17 Ml 10' 1 680000 FEET 11220 7'30"
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KING COUNTY, WAS * GTON, SURFACE WATEWESIGN MANUAL
(2) CN values can be area weighted when they apply to pervious areas of similar CN's (within 20
CN points). However, high CN areas should not be combined with low CN areas (unless the
low CN areas are less than 1 5% of the subbasin). In this case, separate hydrographs should be
generated and summed to form one hydrograph.
FIGURE 3.5.2A HYDROLOGIC SOIL GROUP OF THE SOILS INKING COUNTY
HYDROLOGIC HYDROLOGIC
SOIL GROUP GROUP' SOIL GROUP GROUP*
Aldervvood C Orcas Peat D
Arents, Alderwood Material C Oridia D
Arents, Everett Material B Ovall C
Beausite C Pilchuck C
Bellingham D Puget D
Briscot D Puyallup B
Buckley D Ragnar B
Coastal Beaches Variable Renton D
Earlmont Silt Loam D Riverwash Variable
Edgewick C Salal C
Everett A B 'Sammamish D
Indianola A Seattle D
Kitsap C Shacar D
Klaus C Si Silt C
Mixed Alluvial Land Variable Snohomish D
Neilton A Sultan C
Newberg B Tukwila D
Nooksack C Urban Variable
Normal Sandy Loam D Woodinville D
HYDROLOGIC SOIL GROUP CLASSIFICATIONS
A. (Low runoff potential). Soils having high infiltration rates, even when thoroughly wetted, and consisting
chiefly of deep, well-to-excessively drained sands or gravels. These soils have a high rate of water
transmission.
B. (Moderately low runoff potential). Soils having moderate infiltration rates when thoroughly wetted, and
consisting chiefly of moderately fine to moderately coarse textures. These soils have a moderate rate of
water transmission.
C. (Moderately high runoff potentiai). Soils having slow infiltration rates when thoroughly wetted, and
consisting chiefly of soils with a layer that impedes downward movement of water, or soils with moderately
fine to fine textures. These soils have a slow rate of water transmission.
D. (High runoff potential). Soils having very slow infiltration rates when thoroughly wetted and consisting
chiefly of clay soils with a high swelling potential, soils with a permanent high water table, soils with a
hardpan or clay layer at or near the surface, and shallow soils over nearly impervious material. These soils
have a very slow rate of water transmission.
• From SCS, TR-55, Second Edition,June 19W. Exhibit A-1. Revisions made from SCS, Sod Interpretation
Record, Form #5, September 19M.
3.5.2-2 11/92
KING COUNTY, WASHIOGTON, SURFACE WATERSESIGN MANUAL
TABLE 3.5 2B 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 86 91 94 95
Mountain open areas: low growing brush and grasslands 74 82 89 92
Meadow or pasture: 65 78 85 89
Wood or forest land: undisturbed or older second growth 42 64 76 81
Wood or forest land: young second growth or brush 55 72 81 86
Orchard: with cover crop 81 88 92 94
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% 0 p
to 75% of the area 77 85 90 92
Gravel roads and parking lots 76 85 89 91
Dirt roads and parking lots 72 82 87 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
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BRH Job No. : q� � 1�•OI
Date: G - '1 -Q Z,
H Y D R 0 6 R A P H I N P U T W 0 R K S H E E T
Project :
Basin Identification (5 char ): X 'I-
Description (30 char ): tx1,; " Z�" ��✓"
v
Total Area: . O
Precipitation:
2yr ',0 Syr 10yr 2 A I 25yr SOyr 1 00yr
Hydrograph Numbers:
2yr I Syr 10yr 'I— 25yr SOyr 100yr
Time of Concentration:
length slope surface type "n" value time
O' 4-
0 or �O S S I,OS
Total Travel Time: 24-.
Pervious Area:
Land Use
Soi 1 Type
Hydrologic Group:
Curve Number:
HYD. INP
BRH Job No. : q
Date: '� --13
H Y D R 0 6 R A P H I N P U T W 0 R K S H E E T
Project : 4,-,DD.72--J�., "'- S ��
Basin Identification (5 char ): �-- l 1. 0
l ✓c 1
Description (30 char ): QJ
Total Area:
Precipitation:
2yr 2.c� 5yr 1 0yr'L •q 1 2Syr 50yr 1 00yr ��
Hydrograph Numbers:
2yr ; Syr 10yr 4 25yr 50yr 100yr
Time of Concentration:
length slope surface type In" value time
S
d
Total Travel Time: �• 3
Pervious Area: I S'O/o = . 2 I .
Land Use:
Soil Type:
Hydrologic Group: <f
Curve Number: �51 D
v
HYD. INP
File Basin Hydrograph Siorage Discharge Level pool
3 INPUT, MODIFY OR BROWSE DATA 3
3 BASIN iO X2 SBUH HYDROGRAPH 3
3DESCRIPTION EXIST. COND. 2YR/24HR 3
3AREA (acre5 ) 8.070 RAINFALL CHOICES 3
3RAIN PRECIF ( in ) 2.00 i . TYPE !A 3
3TIME !NTERVAL(min ): i0.00 L. TYPE 1 3
3TIME OF CONC (min ) : Z4.73 3. TYPE 11 3
3RAINFAHLL SELECTION: 6 4. TYPE !!A 3
369STRACT COEFF 0.20 S. TYPE 3 3
38ASE FLOW (Cf,5 ) 0.000 G. USER i 3
3STORM OUR ( hr5 ) 24.000 7. KC 7 DAY 3
3 8. CUSTOM 3
3FERVIOUS PARCEL IMPERVIOUS PARCEL 3
3AREA: 7.600 acres AREA: 0.270 acres 3
3CN 80.00 ON 98.00 3
3 3
3 SUMMARY DATA 3
3FEAK HYDROGRAPH TIME: 8.00 hrs 3
3FEAK HYDROGRAPH FLOW: 1 .5497 cf5 3
31OTAL HYDROGRAPH VOL: 0.708i ac-ft 3
3 HOME END Fi :Find FZ:New F3:Gei F4:Tc-Calc FS:Deieie 3
3 Fgup Fgdn F6:Compute F7: F8:Meihod Fg:Templaie FiO:Exii 3
File Basin Hydrograph Siorage Discharge Level pool
3 INPUT , MODIFY OR BROWSE DATA 3
3 BASIN iD xio SBUH HYDROGRAFH 3
3DESCRIPTION EXIST , COW. iOYR/24HR 3
3AREA (acres ) 8.070 RAINFALL CHOICES 3
3RAIN FRECIF ( in ) 2.9i i . TYPE !A 3
31INE !NTERVAL(min ): i0.00 L. TYPE 1 3
3TIME OF CONC (min ) : 24.73 3. TYPE 11 3
3RAINFALL SELECTION: 6 4. TYPE IIA 3
3AGSTRACT COEFF 0.20 S. TYPE 3 3
3BASE FLOW (C f 5 ) 0.000 6. USER i 3
3STORN OUR ( hr5 ) Z4.000 7. KC 7 DAY 3
3 8. CUSTOM 3
3PERVIOUS PARCEL IMPERVIOUS PARCEL 3
3AREA: 7.800 acres AREA: 0.270 acres 3
3CN 8y.00 CN 98.00 3
:5 3
3 SUMMARY DATA 3
3PEAK HYDROGRAPH TIME: 8.00 hr5 3
3PEAK HYGROGRAFH FLOW: Z.13Z@8 cf5 3
31OTAL HYOROGRAFH VOL: 1 .2424 ac-ft 3
3 HOME END Fi :Flnd F2:New F3:Gei F4:Tc-Calc FS:Deieie 3
3 Pgup Fgdn F6:Compute F7: FS:Method FS:Tempiate F10:Exii 3
Fiie Basin Hydrograph Siorage Discharge Levei pooi
_
3 l NeU.1 , MODIFY OR BROWSE DATA
6 BASIN io 02 SBUH HYDROGRAPH (?, 6
30ESURIP11ON DEV. COND. 2YR/24HR 3
3AREA (acres ) 8.070 RAINFALL CHOICES 3
3RAIN FRECIP ( in ) 2 .100 i . TYPE IA 3
3TIME 1NTERVtiL(min ): i10.100 2. TYPE 1 3
3 T I i1E OF CONC (min ): 8.33 3. TYPE 11 3
3RAINFALL SELECTION: b 4. TYPE !!A 3
3A6S T RRC I COEFF 0.Z10 S. TYPE 3 3
38ASE FLOW ( c f 5 ) 0.000 b . USER i 3
3STORM DUR ( hr5 ) 24.000 7. KC ! DAY 3
3 8. CUSTOM 3
3FERVIOUS PARCEL IMPERVIOUS PARCEL 3
3AREA: i .ZiO acres tiREA: 6.860 acres 3
3CN 190.00 CN S8.00 3
3 3
3 SUMMARY DATA 3
3PEAK HYDROGRAFH TIME: 8.100 hr5 3
3PEAK HYDROGRAPH FLOW: 3.SOS8 Cf5 3
3TOTAL HYDROGRAPH VOL: i . i247 ac-fi 3
3 HOME END Fi :Find F2:New r3:bei F4:1c-Caic FS:Deleie 3
3 Fgup Pgdn FG:Compuie F7: F8:Meihod FS:Templaie FiO:Exii 3
File Basin Hydrograph Siorage Discharge Levei pool
3 INPUT , MODIFY OR BROWSE DATA 3
3 BASIN !D Die SBUH HYDROGRAPH 3
3DESCRIPTION DEV. COND. iOYR/24HR 3
3AREA (acres ) 8.070 RAINFALL CHOICES 3
3RAIN FRECIF ( in ) 2..5i i . -TYPE !A 3
3TIME INTERVAL(min ): i10.100 2. TYPE 1 3
3TIME OF CONC (min ): 8.33 3. TYPE !! 3
3RAINFALL SELECTION: b 4. TYPE !!A 3
3ABSTRACT COEFF 0.20 S. TYPE 3 3
3BASE FLOW (c f s ) 0.000 6. USER i 3
3STORif OUR (hr5 ) 24.000 7. KC 7 DAY 3
3 8. CUSTOi'1 3
3P£RVIOUS PARCEL IMPERVIOUS PARCEL 3
3AREA: i .2ie acres AREA: 6.860 acres 3
3CN 50.00 CiN 98.00 3
3 3
3 SUMMARY DATA 3
3PE6K HYDROGRAFH TIME: 8.00 hr 5 3
3PEAK HYDROGRAFH FLOW: S.3269 Cfs 3
3TOTAL HYDROGRAFH VOL: i .7230 ac-fi 3
3 HOME END Fi :Find F2:iNew FS:Bei F4:Tc-Caic FS:Oeieie 3
3 Pgup Pgdn FS:Compuie F7: FB:Method F5:Tempiaie Fie:Exii 3
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File Basin Hydrograph Storage Discharge Level pool
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3 INPUT , MODIFY OR BROWSE DATA A 3
3 BASIN io Oi1010 SBUH HYDROGRArH O 3
3DESCRIPTI ON OEV. COND. iOOYR/24HR 3
3AREA (acres ) 8.070 RAINFALL CHOICES 3
3RA1N FRECIF ( in ) 3.90 i . IYFE !A 3
3 IME !NTERVAL(min ) : i0.1010 Z. lYF'E 1 3
3TIME OF CONC (min ) : 8.33 3. IYFE !1 3
3RAINFALL SELECTION: 6 4. TYPE !!A 3
3ABS I RAC I COEFF 0.20 S. 1YF'E 3 3
3BASE FLUID (C f 5 ) 0.000 6. USER i 3
3SI ORM -OUR ( hrs ) 24.1000 7 . KC 7 DAY 3
3 8. CUSTOM 3
3PERV.UUS PARCEL IMPERVIOUS FARCEL 3
3AREA: i .ZiO acres AREA: 6.SSO acres 3
3CN 90.00 CN 98.00 3
3 3
3 SUMMARY DATA A 3
3FEAK HYDROGRAYH TIME: 8.00 firs 3
SPEAK HYDROGRAPH FLOW: 7.3041 cfs 3
31UTAL HYDRGGRAF'H VOL: 2.3802 ac-ft 3
3 Hunt END Fi :Find FL:New F3:bet F4:ic-Caic FS:Deieie 3
3 Fgup Fgdn FS:Compuie F7: F8:iiethod FS:lemplaie Fiw:txit 3
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File basin Hydrograph Storage Discharge Level pool
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3 1Neu l , i'1OD1FY UK uxuwbt DATA 3
3 BASIN 10 .3302 Stil.H HYDROGRAF H tt'"G[' �J(Z f- QoN,=� 3
3DESCRIYIION ONE-THIRD DEV. 2YR/Z4HR 3
3AREA (acres ) 8.e70 RAINFALL CHOICES 3
3RA1N PRECIF ( in ) 0.67 i . I YF'E !A 3
3 IME !N ERVAL(min ): i0.00 Z . TYPE 1 3
3 IME OF CONC (min ): 8.33 3. TYPE !1 3
3RAINFALL SELECTION: 6 4. IYYE !!A 3
3ABSIRACI COEFF 0.20 S. IYFE 3 3
3BASE FLOW (c f 5 ) 0.000 6. USER i 3
3STORM OUR (hrs ) 24.000 7. KC 7 DAY 3
3 8. CUSTOM OM 3
3FERV1OUS PARCEL !MFERVIOUS FARCEL 3
3AREA: i .ZiO acres AREA: 6.8610 acres 3
3CN S0.00 CN 98.00 3
3 3
3 SUMMARY DATA 3
3FEAK H-YDROGRAFH TIME: 8.1010 hrs 3
3FEAK HYDROG AFH FLUID: 10.8 K, Cf5 3
.31O1AL HYDROGRAF'H VOL: 0.2846 ac-ft - 12 �l'1 • lib Gfr 3
3 HOME END Fi :Find FZ:New F3:6ei F4:Tc-Caic FS:Oei.eie 3
3 F'gup rgdn F6:Compute F7: F8:Method F9:Templaie FilO:Exli 3
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File Basin Hydrograph Storage Discharge Level pool
3 MULTIPLE ORIFICE 3
3 DISCHARGE STRUCTURE ID:FR1"H 3
3 3
3Name: FLOW RES I KIC;I OR MANHOLE 3
3Feak 05gn Release Kate: 0.00 Cf5 Orif %fiow%elev 3
30rifice Coefficient . . . : 10.62 Dia ( in )%cfs% fi 3
3Lowe5t Orifice Dia ( in ) . . : b.57 b.57 2.35 cf5 3
3hi : Outlet to [nd Orifice: i .BO 383.80 Tt 3
3Second Orifice Dia ( in ) . . 6. i4 b. i4 i .52 cfs 3
3h2: 'Lnd to 3ro Orifice. . . : 0.00 3
3ihird Orifice Dia ( in ). . : 0.00 3
3h3: 3rd to 4th Orifice. . . : 0.00 3
3Fourth Orifice Dia ( in ). . : 0.00 3
3h4: 4ih to 5th Orifice. . . : 0.00 3
3iop Orifice Dia ( in ). . : 0.00 3
3
3Eievation of Lowest Orifice. . . . : 382.00 3
30uiiet Elevation. . . . . . . . . . . . . . . 382.00 3
3Max Elev Above Outlet. . . . . . . . . . : 386.00 3
3Siage-015ch increment . . . . . . . . . . O J O 3
3 0
Av3YbUt' YbDN F3: bet Fb: Delete FiO: txit 3
File Basin Hydrograph Storage Discharge Level pool
Bush , Roeda
Release 3 3
3rroportionai weir 3
3v-Weir 3
i r 3
3 RISER INFLOW STRUCTURE 3e5ted weir 3
3 DISCHARGE STRUCTURE 10: OVER 3de5ign 3
3 3flow 3
3DESCRIP ION:GVERFLOW RISER Sri culvert 3
3RISER DIAMETER ( INCHES ): i2.000 3 3
3WEIR COEFFICIENT. . . . . . . : S.733 Sion 3
30RIFICE COEFFIC;IENI . . . . : 3.782 ,Site 3
3 3-5iruct 3
3RISER ELEVATION (FI ). . . : 386.00 O 3
3MAX Ii'iUM ELEVATION (F I ). : 386.00 31"11'il'li'li"IF'ii'Il''li"li`1i'li`li' M>
3Mtf X IMUi'i INCREMENT (F I ) . : O 1 O 3
3 3
3FGUF PGON F3: bet Fe: Delete Fib: Exit 3
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Avaiiabie Memory remaining: i37008 Dyte5
Current Data Set Name: O: \WORKS\JAL\33178
File Basin Hydrograph Storage Discharge Level pool
Bush , [11111'1('11'If'll'ifllll'll`it'it"lill`1111'll'ITII'll`Illtf
3 3
3Keciangular vault 3
3Trapezoidai basin :S
3Underground pipe 3
3Sto list 3
3MMMMff 3
3 RECTANGULAR ANGULAR VAULT 3 3
3 STORAGE STRUCTURE lD: VAULT 3 3
3 3f"li'ii`11'M
3Name. : DETENTION VAULT 3
3Lengih ifti . . . . . . . . 85.00 3
3Widih ( fi ). . . . . . . . . 40.00 3
35iariing Elevation. : 382.00 3
Ylax Elev of Vault . . : .386.00 3
3Siage-Sto increment : 0. io 3
3Structure Vol (cf ). : 13600.00 3
3 Ac-fi . : 0.3i 3
3 3
3FGUY PEON 1=3: bet F6: Delete riO: Exit 3
I I'If'I�Ii`IT'11"I('Ii`Il`ll"119T11"il'IT11"Ilyil'IPIi'Il"Il'If'Il'11'Il`II'Ii"II`11'Il"Il`11'li'I I'71"li"ii"119Pi1"Il"If'il'119�
Available Memory remaining: i3700 8 bytes
Current Data Set Name: 0: \W0R(KS\JAL\53i 8
File Basin Hydrograph Storage Discharge Level pool
Bush , Road & Kiich.ings , Inc Lil7liilli"11`Iiitit'fT11"it"iT'Ii•lil>1P18
3 f'ii'i i'i I'91"li'Il`'IT'Il"Ii"Il"il"i i"Ii"11"11"IT"Il"1T'il"Il"I1"I1"I1 i T'Ii"INI f"Il"IF'I I"Ii"If"11"I i"(1"Il"Il'1 f1T"IMCIi"Il`11`1('11"111T11"IT1T'I('II'II"Il"li'1PII"I f'11"I T"11"Il"1191"il"(1"I I"Ii"(1'Ii"I f'I ti
3 ROUTING COMPARISON TABLE 3
3 MATCH INFLOW STO Di5 PEAK PEAi( OUT 3
3 DESCRIPTION PEAK PEAK No. NO. S i b OUT HYD 3
---aaxxxxxxxx=xx=xx xxxxxxxxxxx-------sx 3aaa---------o-a----xx
32 YK i .55 3.5i VAULT CMH51 383.74 1 .55 i1 3
31O YK 2.52 5.33 VAULT CMHSi 384.73 L .52 iL 3
3 i OO YR 0.00 7.30 VAULT CMHE i 385.56 3.84 i 3 3
3 .3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
3 3
I i'11'ii'ii'Il'11'If'il'II'Ii'IT'li°Ii'Il"(1'll'If'if'il'll'li'II'Ii'IPII'II'1i'II'Ii'Il'It'il'I1'11'Il"(i'h"11'li'Il'II"II'11'il`fl�ii'ii�l"illi'1I`11'll'II'll'II"11"Il"ii'91'li'll`Ii"Il'll'11'li'il'll`tl"II"fi'il'I
Available Memory remaining: i37008 bytes
Current Data Set Name: D:\WOR(KS\JAL\53i78
File basin Hydrogleh Storage Discharge Lev OOi
Roed & Hiiching5 , Inc
3 DITCH REACH INPUT FORM 3
3 Reach 10: BIOSWALE 3
3 3
Mitch Length ( ft5. . . . 200.00 Tributary Area (Ac5: 6.0-7 3
301ich Width ( fi ). . . . . is.00 Peak Q (cfs ). . . . . . . i .43 3
35ide Slope! 3.00 Peak Depth ( fi ). . . . 0.33 3
351de Slope[ (H: iV). . . 3.00 Peak Vel ( fps ). . . . . : O.Z7 3
30itch Slope ( ft/fi ). . : 0.0200 Up W.S. eiev ( fi ). . : 3
3ffanning5 n Coeff. . . . . 0.3500 3
Konirib Sa5in. . . . . . . . 3
30n5ireaM i .e. ( ft ). . . 38i .00 3
30n5iream W.S. ( ft ). . . 0.00 3
3E Of Steps. . . . . . . . . . . . io 3
3ArrOW5 Fi :Find F2:CiearCA F3:Get F4:mann FiO: Exit 3
Tf!MMMMNM >
Pipe Safety Factor. . . . . . i .00
Available Memory remaining: ii019b- bytes
Current Data Set Name: U:\WORKS\jAL\S3i78