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HomeMy WebLinkAboutSWP272867(4) 4205 148th Ave.N.E.Suite 200 CORE Bellevue,Washington 98007 425.885.7877 Fax 425.885.7963 DESIGN STORM DRAINAGE REPORT FOR MAPLEWOOD PARCEL RENTON, WASHINGTON 4' e0 .3 3 PREPARED BY: Gina R. Brooks, P.E. AL APPROVED BY: David E. Cayton, P.E. REg6-t2- DATE: February, 2000 b •1 Y-oa REVISED: June, 2000 CORE PROJECT NO.: 94168 ENGINEERING PLANNING SURVEYING MAPLEWOOD PARCEL TABLE OF CONTENTS Section I: Project Overview Section II: Off-site Analysis Section III: Detention Analysis and Design Section IV: Conveyance System Analysis and Design SECTION I: PROJECT OVERVIEW: The Maplewood Parcel is a proposed single family development located on the south side of 128th Street SE between the Right of Ways for 148th and 152nd Avenue SE in Renton, Washington in the Section 14, Township 23 North, Range 5 East W.M. The property will be accessed from 128th Street SE. The property is approximately 62.73 acres sloping to the southwest at an average slope of 5%. Approximately 47.75 acres of the subject property will be developed. The remaining 14.98 acres will remain in its existing condition as preserved wetlands, buffers, and Native Growth Protection Easements. The surrounding land uses are residential housing and undeveloped land. See Figure 1 for vicinity map. The property is currently vacant. Ground cover consists of a combination of young trees and wetlands. A couple minor drainage swales consisting of wetlands traverse northeast to southwest across the property. Development of the site will include construction for 218 single family lots with associated roadway and utilities. A detention/water quality pond followed by a biofiltration swale will be installed at the southwest corner of the site. 405 5 4 3 2 900 s0 8 9 10 11 R E N T 0 N NE 4TH ST. SE 128TH ST. S� BM PT. BM PE N��R 1852 2103 GREENWOOD SITE CEMETERY 1 t 169 16 15 14 Y MAPL WOOD GOLF COURSE VICINITY MAP N 1" = 3000'± SECTION II: OFFSITE ANALYSIS : Upstream Area The site receives runoff from 53.17 acres. The upstream drainage basin extends from the east property line east to 156d' Avenue SE between SE 132nd Street and SE 128th Street Another smaller area is also upstream of the site. This area is the west half of the 152°d Avenue SE right-of-way from SE 132nd Street south to the intersection of a proposed road (located 365 feet north of the southeast property corner). This tributary area described above is divided into two tributary areas based on the location of the arrival onsite. Tributary Area 1 arrives on the site in the form of sheet flow which is collected by the onsite conveyance system. Tributary Area 2 arrives on the site in the form of both sheet flow and concentrated ditch flow. Drainage from Tributary Area 2 flows directly into a onsite wetland. This corresponding wetland drainage is bypassed through the site. The site straddles another upstream tributary area which is near the west boundary of the site and adjacent to SE 128th Street. This area sheet flows onto the site and is captured by the onsite drainage system. All drainage east of 152"d Avenue SE between SE 136`' Street and SE 132nd Street is intercepted by a ditch that runs along 152nd Avenue SE conveying drainage south and away from the proposed site. An upstream area on the north side of SE 128th Street is diverted from flowing onto the site through a series of culverts and ditches. The stormwater flows under SE 128th Street in a 30-inch concrete culvert to the northwest corner of the site and ultimately away from the proposed site. Onsite Area The majority of the site is currently young alder saplings. The site has a minor drainage swale traversing the site from the northeast to the southwest. The property is surrounded by unimproved Right of Way with the exception of the north property line. The Right of Ways currently are unimproved dirt roads. Small runnels have formed along the perimeter roads. Stormwater generally flows in a southwesterly direction over forested terrain. Where the flows reach the west perimeter dirt road, they generally run through puddles until a runnel directs them to the drainage swale to the west. The flows from this drainage swale ultimately run back towards the southwest property corner. Where the flows reach the south perimeter road, they run through runnels to a section of cleared property which directs the flow toward a 30" culvert south of the site. Downstream Investigation The western swale and the on-site flows drain to a swale just south of the southwest property corner. The swale is broad with a shallow low-flow eroded channel. The channel seems to contain normal flows but is probably inundated during major storm events. However, there does not currently appear to be any erosion or capacity problems for the swale as a whole. This swale flows through a cleared and grassed area which does not appear to be maintained. The southern Swale and other site runnels converge approximately 500 feet south of the property at a 30" culvert. This culvert directs the flows through the Plat of Briar Hills through a 30" CMP pipe at varying slopes of 0.6 to 3.8% (see Figure 3 for Downstream Drainage Map)., There is one "off-line" detention pond approximately 1200 feet downstream which is thoroughly grassed and shows no sign of recent inundation. The 30" inch CMP ultimately drains to another"off-line" detention pond approximately 2200 feet downstream near the south end of Briar Hills. This detention pond shows evidence of recently detained flows filling up the bottom 2 feet of the pond (the pond has seven feet of available storage). This pond releases to a rip-rapped discharge at the top of a natural drainage ravine. The ravine eventually discharges to the Cedar River approximately one mile downstream of the subject property. The downstream flow path has no apparent signs of flooding or extensive erosion. It u, �,�:.�;- j gym-- '�l�/• i 1 �• q ; ?• � � t �. yA a Y� p � �•ISpNp NC [[a`• •fro yL� AK >��• � t lllM IY[ ![ �- - •• SECTION III: DETENTION ANALYSIS & DESIGN: A. Hydraulic Analysis Storm water runoff for the site was modeled using WaterWorks hydrology software and the Santa Barbara Urban Hydrograph Methodology. A combination detention/water quality pond along with a biofiltration swale will be used for mitigation of the stormwater. The soil type on-site and upstream of the site is Alderwood (AgQ per the King County SCS Map. The soil type falls under hydrologic group C. The precipitation rates used for this analysis are as follows: *Water quality storm= 1/3(2-year, 24-hour storm) --> 0.67 in. •2-year, 24-hour storm 2.00 in. •5-year, 24-hour storm 2.60 in. •10-year, 24-hour storm 2.94 in. •25-year, 24-hour storm 3.46 in. •100-year, 24-hour storm —> 3.95 in. Existing Conditions The existing conditions will consist of those portions of the site within the property boundaries that will be disturbed(47.75 acres) and some areas outside the property boundaries that will be improved with half street and/or full street improvements (0.95 acres). EXISTING SITE Total Area=48.70 acres CONDITIONS GROUND COVER AREA acre CN Second Growth Forest 48.70 81 Time of concentration See Site Plan exhibit on the following 68.12 min. pages (See Waterworks printouts for calculation ma !m OF �.� �l'!�i►_ I "ice Y " c e Ilk I�`�1 1 �� 4 - ` i I T•- MWIN -W 1 1-3011" )14 Elkin Illy � w���� rail �4lip - PPAI Lip i11,�R �11� '��•��''l��j�,, 93 MAN kommi wm mm PC rod IPPAAF! 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ME AN INVvim i •- ;.�+ n ,► ► �, illM, XV,Eli vim- r wASM r. • 11 17111 wo ' IN I L'i Pau WX ON I Nil wo awl IVA lip . . , . . . . . . . ��'�i���!�/ICE • SHEET NO. 11 KING COUNTY AREA, WASHINGT( (RENTON QUADRANGLE) 139AQUAH 12 Mi. 1 LO[ 1680 000 FEET 200 470.10, j Lill -4r3 ur� '. �l 4"t ,4-m- "TI *tt ark`. ° Iw Ilx � •` e gi .. , •u I II `�l$M k �• 8 r 1 .- _ I{'. r -- ^K �-. � "ill s � • .. .��r..� .r-�.... �}�6�. k f 180 000 w F.. -- k• r vac.— __� \� II An- ,F.. ��:11 1{ as eT..7t1• fit. � z v� ° 1�A �•� I / AkF q r •_ x n .. -� AgC \, . c•.r s r Py lr y r \ a AkF --_\ `J 8 UI• irl PNg I mw pit Ma:; W`\ �, p it F, •Py Vt Elliot P� J AgC I - \- AgC. \II , AkF Park Ng ply aq`uE \C•`a I .� 169 .■ \�ti\`i d y: Evc Agc r M f B AgD AkF \ u 1 A 8 � _�g2- ` BM 27f30f1 ~..i (� I Agc °-- LJ I AgD AgC AgU O I AkF U BMA 4 ' c SOILS MAP 428: I AmC ( Agg l:; mB i AgB :_ ur 27 �� MAPLEWOOD PARCEL PROJECT NO. 94168 lb 0 I , _ 1..- --------- `—T—� I � _ F- ` 5.... ... I 1 fl ii•. -} �S 100 Co J` . o• � S I � 29 122 i t •1 Id a , \ 167 124 1188 ^t66 G I I 162� 170 121 ,>17 ! 119- y I, 125. 1�6 Y 160 t5s r --"f unity i M n i `\ T� {/�7 179i Ib 1311 132 w I I M� W /M� r w 6/12/00 11 : 35 :44 am Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: EX002 NAME: EX SITE 2 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 00 inches AREA. . : 48 . 70 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 68 . 12 min 0 . 00 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0570 TcReach - Shallow L: 250 . 00 ks : 5 . 00 s : 0 . 0560 TcReach - Shallow L: 630 . 00 ks : 5 . 00 s : 0 . 0300 TcReach - Channel L: 670 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE : 2 . 35 cfs VOL: 2 .45 Ac-ft TIME: 550 min BASIN ID: EX005 NAME: EX SITE 5 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 60 inches AREA. . : 48 . 70 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 68 . 12 min 0 . 00 min ABSTRACTION COEFF: 0 .20 TcReach - Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0570 TcReach - Shallow L: 250 . 00 ks : 5 . 00 s : 0 . 0560 TcReach - Shallow L: 630 . 00 ks : 5 . 00 s : 0 . 0300 TcReach - Channel L: 670 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE: 4 . 56 cfs VOL: 4 . 12 Ac-ft TIME : 540 min BASIN ID: EXO10 NAME: EX SITE 10 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 94 inches AREA. . : 48 . 70 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 68 . 12 min 0 . 00 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0570 TcReach - Shallow L: 250 . 00 ks :5 . 00 s : 0 . 0560 TcReach - Shallow L: 630 . 00 ks : 5 . 00 s : 0 . 0300 TcReach - Channel L: 670 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE : 5 . 98 cfs VOL: 5 . 14 Ac-ft TIME: 520 min 6/12/00 11 : 35 :44 am Dodds Engineers, Incorporated page 2 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: EX100 NAME : EX SITE 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 48 . 70 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 68 . 12 min 0 . 00 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0570 TcReach - Shallow L: 250 . 00 ks : 5 . 00 s : 0 . 0560 TcReach - Shallow L: 630 . 00 ks : 5 . 00 s : 0 . 0300 TcReach - Channel L: 670 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE : 11 . 00 cfs VOL: 8 .44 Ac-ft TIME : 490 min Open Space Portions of the open space (5.51 acres)within the property are captured by the storm drainage system and routed through detention. Since these areas will remain in their natural condition, these areas will be routed through the detention pond undetained. Listed below are the areas within specific tracts that are captured by the storm drainage system. See"Site Plan" exhibit in the previous pages. ' Tract Area acres A 2.61 ' C 0.16 D 0.03 E 0.04 F 1.66 J 1.01 OPEN SPACE Total Area= 5.51 acres GROUND COVER AREA acre CN 2'Growth Forest 5.51 81 Time of concentration Assumed to be equal to the "Existing 68.12 min. Time of Concentration" 6/12/00 1 : 18 :4 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: OPEN002 NAME : OPEN SPACE 2 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 5 . 51 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 00 inches AREA. . : 5 . 51 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 68 . 12 min 0 . 00 min ABSTRACTION COEFF : 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 . 4000 p2yr: 2 . 00 s : 0 . 0570 TcReach - Shallow L: 250 . 00 ks : 5 . 00 s : 0 . 0560 TcReach - Shallow L: 630 . 00 ks : 5 . 00 s : 0 . 0300 TcReach - Channel L: 670 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE: 0 .27 cfs VOL: 0 .28 Ac-ft TIME: 550 min BASIN ID: OPEN005 NAME: OPEN SPACE 5 YR STORM SBUH METHODOLOGY - TOTAL AREA. . . . . . . : 5 . 51 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 60 inches AREA. . : 5 . 51 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 68 . 12 min 0 . 00 min ABSTRACTION COEFF: 0 .20 TcReach - Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0570 TcReach - Shallow L: 250 . 00 ks : 5 . 00 s :0 . 0560 TcReach - Shallow L: 630 . 00 ks : 5 . 00 s : 0 . 0300 TcReach - Channel L: 670 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 .0250 PEAK RATE: 0 . 52 cfs VOL: 0 .47 Ac-ft TIME: 540 min BASIN ID: OPEN010 NAME: OPEN SPACE 10 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 5 . 51 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 94 inches AREA. . : 5 . 51 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 68 . 12 min 0 . 00 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0570 TcReach - Shallow L: 250 . 00 ks : 5 . 00 s : 0 . 0560 TcReach - Shallow L: 630 . 00 ks : 5 . 00 s : 0 . 0300 TcReach - Channel L: 670 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE: 0 . 68 cfs VOL: 0 . 58 Ac-ft TIME: 520 min 6/12/00 1 : 18 :4 pm Dodds Engineers, Incorporated page 2 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: OPEN100 NAME: OPEN SPACE 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 5 . 51 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 5 . 51 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 68 . 12 min 0 . 00 min ABSTRACTION COEFF: 0 .20 TcReach - Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0570 TcReach - Shallow L: 250 . 00 ks : 5 . 00 s : 0 . 0560 TcReach - Shallow L: 630 . 00 ks : 5 . 00 s : 0 . 0300 TcReach - Channel L: 670 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE: 1 .24 cfs VOL: 0 . 95 Ac-ft TIME: 490 min Offsite Tributary Area The site receives runoff from 53.17 acres as described previously _ There will be three different offsite areas delineated. One area sheet flows onto the site from the east (Offsite Tributary Area 1). This area includes a large area north of SE 132nd Street and east of 152nd Avenue SE. The area also includes the west half of 152' r Avenue SE from SE 132nd Street south to the intersection of a proposed road (located 365 feet north of the southeast property corner). This area will flow through the detention system undetained The other area is either intercepted by a ditch along the north side of SE 132nd Street upstream and east of 152°d Avenue SE or sheet flows into a wetland onsite (Offsite Tributary Area 2). The concentrated flow from the ditch will be intercepted by a culvert and conveyed directly to the adjacent onsite wetland. This wetland will bypass the detention system. The site straddles the other offsite area which is near the west boundary of the site and adjacent to SE 128' Street(Offsite Tributary Area 3). This area sheet flows onto the site. This area will flow through the detention system undetained OFFSITE TRIBUTARY Total Area= 10.63 acres AREA 1 GROUND COVER AREA acre CN 2'Growth Forest 2.01 81 Pasture 0.86 85 Lawn/Landscaping Lawn/Landscaping 2.07 86 Gravel 4.39 89 Impervious 1.30 98 Existing Time of concentration See Existing Offsite Tributary Area 73.90 min. exhibit on the following pages (See Waterworks printouts for calculation Developed Time of See Developed Offsite Tributary Area 36.74 min. concentration exhibit on the following pages (See excel spreadsheet Dev. Time of Conc. For Trib. Area 1 for calculation Time of concentration to project (See Waterworks printouts for 29.83 min. property line(for conveyance calculation) calculations 6/12/00 2 : 29 : 51 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: EXOS1002 NAME: EX TRIB AREA 1 2 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 00 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 73 . 90 min 73 . 90 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 TcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 TcReach - Shallow L: 1405 . 00 ks : 5 . 00 s : 0 . 0160 TcReach - Channel L: 290 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 impTcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 impTcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 impTcReach - Shallow L: 1405 . 00 ks : 5 . 00 s : 0 . 0160 impTcReach - Channel L: 290 . 00 kc : 17 . 00 s : 0 . 0240 impTcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE: 1 . 03 cfs VOL: 0 . 86 Ac-ft TIME: 510 min BASIN ID: EXOS1005 NAME : EX TRIB AREA 1 5 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . ; 2 . 60 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 73 . 90 min 73 . 90 min ABSTRACTION COEFF : 0 . 20 TcReach -- Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 TcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 TcReach - Shallow L: 1405 . 00 ks : 5 . 00 s : 0 . 0160 TcReach - Channel L: 290 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 impTcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 impTcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 impTcReach - Shallow L: 1405 . 00 ks : 5 . 00 s : 0 . 0160 impTcReach - Channel L: 290 . 00 kc : 17 . 00 s : 0 . 0240 impTcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE : 1 . 68 cfs VOL: 1 . 30 Ac-ft TIME : 490 min 6/12/00 2 :29 : 51 pm Dodds Engineers, Incorporated page 2 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: EXOSIO10 NAME: EX TRIB AREA 1 10 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 2 . 94 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 73 . 90 min 73 . 90 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 TcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 TcReach - Shallow L: 1405 . 00 ks :5 . 00 s : 0 . 0160 TcReach - Channel L: 290 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc: 17 . 00 s : 0 . 0250 impTcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 impTcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 impTcReach - Shallow L: 1405 . 00 ks : 5 . 00 s : 0 . 0160 impTcReach - Channel L: 290 . 00 kc : 17 . 00 s : 0 . 0240 impTcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE : 2 . 08 cfs VOL: 1 . 56 Ac-ft TIME: 490 min BASIN ID: EXOS1100 NAME : EX TRIB AREA 1 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 73 . 90 min 73 . 90 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 TcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 TcReach - Shallow L: 1405 . 00 ks : 5 . 00 s : 0 . 0160 TcReach - Channel L: 290 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc: 17 . 00 s : 0 . 0250 impTcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 impTcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 impTcReach - Shallow L: 1405 . 00 ks : 5 . 00 s : 0 . 0160 impTcReach - Channel L: 290 . 00 kc : 17 . 00 s : 0 . 0240 impTcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE : 3 . 33 cfs VOL: 2 . 36 Ac-ft TIME : 490 min DEV. TIME OF CONCENTRATION FOR TRIB. AREA 1 Sheet Flow: Tt= 0.42(n,L)0-8 (P2) (So) where: Tt: travel time (min). ns: sheet flow Manning's Effective roughness coefficient (from Table 3.5.2C). L: flow length (ft). P2: 2-year, 24-hour rainfall (in), (see Figure 3.5.1 C). so: slope of hydraulic grade line (land slope, ft/ft). Shallow Tt= L Concentrated Flow: 60ks(so) 73 where: Tt: travel time (min). L: flow length (ft). ks: time of concentration velocity factor(ft/s), (see Table 3.5.2C). so: slope of hydraulic grade line (land slope, ft/ft). Channel Flow: Tt= L 60kc(so) where: Tt: travel time (min). L: flow length (ft). kv: time of concentration velocity factor(ft/s), (see Table 3.5.2C). so: slope of hydraulic grade line (land slope, ft/ft). Fill in Values In Boxes: Sheet Flow: Segment#= 1 Tt= 21.97 min. ns= 0.15 L = 300 P2 = 2 sa = 0.043 Shallow Segment#= 2 Tt= 7.86 min. Concentrated Flow: L = 1050 ks = 11 So= 0.041 Segment#= 3 Tt= 0.59 min. L = 97 ks= 11 So= 0.062 Channel Flow: Segment#= 4 Tt= 0.20 min. L = 145 kC= 42 So= 0.083 Segment#= 5 Tt= 2.02 min. L = 1066 k.= 42 So = 0.044 Segment# = 6 Tt= 4.10 min. L = 1386 kc= 42 So= 0.018 Tc= 36.74 min. 6/12/00 3 : 9 : 58 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: DOS1002 NAME: DEV TRIB AREA 1 2 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 2 . 00 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 36 . 74 min 36 . 74 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 1 .43 cfs VOL: 0 . 86 Ac-ft TIME : 490 min BASIN ID: DOS1005 NAME: DEV TRIB AREA 1 5 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . ; 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 2 . 60 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 36 . 74 min 36 . 74 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 2 . 31 cfs VOL: 1 . 30 Ac-ft TIME : 490 min BASIN ID: DOS1010 NAME: DEV TRIB AREA 1 10 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 2 . 94 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 36 . 74 min 36 . 74 min ABSTRACTION COEFF : 0 . 20 PEAK RATE : 2 . 83 cfs VOL: 1 . 56 Ac-ft TIME : 490 min BASIN ID: DOS1100 NAME: DEV TRIB AREA 1 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 36 . 74 min 36 . 74 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 4 .45 cfs VOL: 2 . 36 Ac-ft TIME : 490 min 6/12/00 3 :24 : 35 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: TRIB1025 NAME: TRIB AREA 1 25 YR STORM --rC FMP wne SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 46 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 29 . 83 min 29 . 83 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 TcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 impTcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 impTcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 PEAK RATE: 3 . 90 cfs VOL: 1 . 97 Ac-ft TIME: 490 min BASIN ID: TRIB1100 NAME: TRIB AREA 1 100 YR STORM TO FZDP L1`rY, SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 .-63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 29 . 83 min 29 . 83 min ABSTRACTION COEFF : 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 TcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 impTcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 impTcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 PEAK RATE: 4 . 74 cfs VOL: 2 . 36 Ac-ft TIME: 490 min OFFSITE TRIBUTARY Total Area=33.54 acres AREA 2 GROUND COVER AREA acre CN 2nd Growth Forest 20.43 81 Pasture 5.40 85 Lawn/LandscRing 5.29 86 Impervious 2.42 98 Time of concentration to project See Existing &Developed Offsite 77.58 min. property line (for conveyance Tributary Area exhibits on previous calculations) pages (See Waterworks printouts for calculation 6/12/00 3 :26 : 17 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: TRIB2025 NAME: TRIB AREA 2 25 YR STORM -TT3 PQOQ, L..jrV& SBUH METHODOLOGY TOTAL AREA. . . . . . . : 33 . 54 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 31 . 12 Acres 2 .42 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 82 . 50 98 . 00 TC. . . . : 77 . 57 min 77 . 57 min ABSTRACTION COEFF: 0 .20 TcReach - Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0260 TcReach - Shallow L: 1290 . 00 ks :5 . 00 s : 0 . 0530 impTcReach _ Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0260 impTcReach - Shallow L: 1290 . 00 ks : 5 . 00 s : 0 . 0530 PEAK RATE : 6 . 50 cfs VOL: 5 . 29 Ac-ft TIME : 490 min BASIN ID: TRI132100 NAME: TRIB AREA 2 100 YR STORM "TO fT-01P wnr-, SBUH METHODOLOGY TOTAL AREA. . . . . . . : 33 .54 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 31 . 12 Acres 2 .42 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 82 . 50 98 . 00 TC. . . . .. 77 . 57 min 77 . 57 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0260 TcReach - Shallow L: 1290 . 00 ks : 5 . 00 s : 0 . 0530 impTcReach - Sheet L: 300 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0260 impTcReach - Shallow L: 1290 . 00 ks : 5 . 00 s : 0 . 0530 PEAK RATE: 8 . 24 cfs VOL: 6 .46 Ac-ft TIME : 490 min OFFSITE TRIBUTARY Total Area= 9.00 acres AREA 3 GROUND COVER AREA acre CN 2"Growth Forest 7.66 81 Pasture 0.26 85 Compact Dirt 0.28 87 Impervious 0.80 98 Existing Time of concentration See Existing Offsite Tributary Area 30.50 min. exhibit on the previous pages (See excel spreadsheet Ex. Time of Conc. For Trib. Area 3 for calculation Developed Time of See Developed Offsite Tributary Area 26.48 min. concentration exhibit on the previous pages (See excel spreadsheet Dev. Time of Conc. For Trib. Area 3 for calculation Time of concentration to project (See Waterworks printouts for 15.91 min. property line (for conveyance calculation) calculations EX. TIME OF CONCENTRATION FOR TRIB. AREA 3 Sheet Flow: Tt= 0.42(n,,Q0-8 (P2) (so) 0.4 where: Tt: travel time (min). ns: sheet flow Manning's Effective roughness coefficient (from Table 3.5.2C). L: flow length (ft). P2: 2-year, 24-hour rainfall (in), (see Figure 3.5.1C). so: slope of hydraulic grade line (land slope, ft/ft). Shallow Tt= L Concentrated Flow: 60ks(so) where: Tt: travel time (min). L: flow length (ft). ks: time of concentration velocity factor(ft/s), (see Table 3.5.2C). so: slope of hydraulic grade line (land slope, ft/ft). Channel Flow: Tt= L 60kc(so) 0-5 where: Tt: travel time (min). L: flow length (ft). k,�: time of concentration velocity factor(ft/s), (see Table 3.5.2C). so: slope of hydraulic grade line (land slope, ft/ft). Fill in Values In Boxes: Sheet Flow: Segment#= 1 Tt= 2.04 min. ns = 0.011 L= 260 P2= 2 So = 0.066 Segment# = 2 Tt= 8.09 min. ns = 0.4 L = 40 P2= 2 80 = 0.066 Shallow Segment#= 3 Tt= 5.78 min. Concentrated Flow: L = 410 ks= 5 So = 0.056 Channel Flow: Segment#= 4 Tt= 7.54 min. L = 1115 kc= 17 So = 0.021 Segment#= 5 Tt= 1.84 min. L = 290 kc = 17 So = 0.024 Segment#= 6 Tt= 5.21 min. L = 840 kc = 17 So = 0.025 TC= 30.50 min. 6/12/00 2 :29 :41 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: EXOS3002 NAME: EX TRIB AREA 3 2 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 00 inches AREA. . : 8 .20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 30 . 50 min 30 . 50 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 0 . 79 cfs VOL: 0 . 54 Ac-ft TIME : 490 min BASIN ID: EXOS3005 NAME: EX TRIB AREA 3 5 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 60 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 30 . 50 min 30 . 50 min ABSTRACTION COEFF: 0 .20 PEAK RATE: 1 .44 cfs VOL: 0 . 86 Ac-ft TIME: 490 min BASIN ID: EXOS3010 NAME : EX TRIB AREA 3 10 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 94 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 30 . 50 min 30 . 50 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 1 . 85 cfs VOL: 1 . 06 Ac-ft TIME : 490 min BASIN ID: EXOS3100 NAME : EX TRIB AREA 3 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 30 . 50 min 30 . 50 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 3 . 15 cfs VOL: 1 . 69 Ac-ft TIME: 490 min DEV. TIME OF CONCENTRATION FOR TRIB. AREA 3 Sheet Flow: Tt= 0.42(nSL)0-8 (P2) (So) 0-4 where: Tt: travel time (min). ns: sheet flow Manning's Effective roughness coefficient (from Table 3.5.2C). L: flow length (ft). P2: 2-year, 24-hour rainfall (in), (see Figure 3.5.1C). so: slope of hydraulic grade line (land slope, ft/ft). Shallow Tt= L Concentrated Flow: 60ks(so) where: Tt: travel time (min). L: flow length (ft). ks: time of concentration velocity factor(ft/s), (see Table 3.5.2C). so: slope of hydraulic grade line (land slope, ft/ft). Channel Flow: Tt= L 60k,(sj) where: Tt: travel time (min). L: flow length (ft). kc: time of concentration velocity factor(ft/s), (see Table 3.5.2C). so: slope of hydraulic grade line (land slope, ft/ft). Fill in Values In Boxes: Sheet Flow: Segment#= 1 Tt= 2.04 min. ns = 0.011 L= 260 P2 = 2 So= 0.066 Segment#= 2 Tt= 8.09 min. ns = 0.4 L= 40 P2 = 2 So = 0.066 Shallow Segment#= 3 Tt= 5.78 min. Concentrated Flow: L= 410 ks = 5 So= 0.056 Channel Flow: Segment#= 4 Tt= 0.70 min. L = 260 kc= 42 So= 0.022 Segment#= 5 Tt= 5.78 min. L= 1527 kc= 42 So= 0.011 Segment#= 6 Tt= 4.10 min. L= 1386 kc= 42 So= 0.018 Tc= 26.48 min. 6/12/00 4 : 35 :47 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: DOS3002 NAME: DEV TRIB AREA 3 2 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 2 . 00 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 26 . 48 min 26 . 48 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 0 . 83 cfs VOL: 0 . 54 Ac-ft TIME : 490 min BASIN ID: DOS3005 NAME: DEV TRIB AREA 3 5 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 2 . 60 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 26 .48 min 26 .48 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 1 . 51 cfs VOL: 0 . 86 Ac-ft TIME : 490 min BASIN ID: DOS3010 NAME: DEV TRIB AREA 3 10 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 2 . 94 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . . 26 .48 min 26 .48 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 1 . 93 cfs VOL: 1 . 06 Ac-ft TIME : 490 min BASIN ID: DOS3100 NAME : DEV TRIB AREA 3 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 26 .48 min 26 . 48 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 3 . 28 cfs VOL: 1 . 69 Ac-ft TIME : 490 min 6/12/00 3 :24 : 12 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: TRID3025 NAME : TRIB AREA 3 25 YR STORM -ro - T-00 Line SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA DERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 8 .20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 15 . 91 min 15 . 91 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 260 . 00 ns : 0 . 0110 p2yr: 2 . 00 s : 0 . 0660 TcReach - Sheet L: 40 . 00 ns : 0 . 4000 p2yr: 2 . 00 s : 0 . 0660 TcReach - Shallow L: 410 . 00 ks : 5 . 00 s : 0 . 0560 impTcReach - Sheet L: 260 . 00 ns : 0 . 0110 p2yr: 2 . 00 s : 0 . 0660 impTcReach - Sheet L: 40 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0660 impTcReach - Shallow L: 410 . 00 ks : 5 . 00 s : 0 . 0560 PEAK RATE: 3 . 04 cfs VOL: 1 . 38 Ac-ft TIME: 480 min BASIN ID: TRID3100 NAME : TRIB AREA 3 100 YR STORM TO PZDP. LIv1E, SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 15 . 91 min 15 . 91 min ABSTRACTION COEFF: 0 .20 TcReach - Sheet L: 260 . 00 ns : 0 . 0110 p2yr: 2 . 00 s : 0 . 0660 TcReach - Sheet L: 40 . 00 ns : 0 . 4000 p2yr: 2 . 00 s : 0 . 0660 TcReach - Shallow L: 410 . 00 ks : 5 . 00 s : 0 . 0560 impTcReach - Sheet L: 260 . 00 ns : 0 . 0110 p2yr: 2 . 00 s : 0 . 0660 impTcReach - Sheet L: 40 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0660 impTcReach - Shallow L: 410 . 00 ks : 5 . 00 s : 0 . 0560 PEAK RATE : 3 . 83 cfs VOL: 1 . 69 Ac-ft TIME : 480 min Developed Conditions The amount of new impervious area for the developed site within the property boundaries was derived from Table 3.5.2B of the 1990 King County Surface Water Design Manual (KCSWDM). According to Table 3.5.2B of the 1990 KCSWDM, the percentage of impervious area for the site is 46.3 % for 218 proposed lots on 47.75 acres =4.57 DU/AC. The developed conditions will consist of those portions of the site within the property boundaries that will be disturbed (47.75 acres) and some areas outside the property boundaries that will be improved with half street and/or full street improvements (0.95 acres). The areas outside the property boundaries will be consider completely impervious. DEVELOPED CONDITIONS Total Area=48.70 acres GROUND COVER AREA acre CN Lawn/Landscaping Lawn/Landscaping 25.64 86 Impervious (46.3%*47.75 ac+ 23.06 98 0.95 ac Time of concentration See Site Plan exhibit on the previous 29.53 min. pages (See Waterworks printouts for calculation 6/12/00 3 :40 :42 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: DEV002 NAME: DEV SITE 2 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 00 inches AREA. . : 25 . 64 Acres 23 . 06 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 29 . 53 min 29 . 53 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 TcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 TcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 TcReach - Channel L: 2767 . 00 kc :42 . 00 s : 0 . 0340 impTcReach - Sheet L: 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 impTcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 impTcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 impTcReach - Channel L: 2767 . 00 kc :42 . 00 s : 0 . 0340 PEAK RATE : 10 . 02 cfs VOL: 5 . 22 Ac-ft TIME: 490 min BASIN ID: DEV005 NAME: DEV SITE 5 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 2 . 60 inches AREA. . : 25 . 64 Acres 23 . 06 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 29 . 53 min 29 . 53 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 TcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 TcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 TcReach - Channel L:2767 . 00 kc :42 . 00 s : 0 . 0340 impTcReach - Sheet L: 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 impTcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 impTcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 impTcReach - Channel L:2767 . 00 kc :42 . 00 s : 0 . 0340 PEAK RATE : 14 .47 cfs VOL: 7 . 39 Ac-ft TIME: 480 min 6/12/00 3 :40 :42 pm Dodds Engineers, Incorporated page 2 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: DEV010 NAME : DEV SITE 10 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 2 . 94 inches AREA. . : 25 . 64 Acres 23 . 06 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 29 . 53 min 29 . 53 min ABSTRACTION COEFF: 0 .20 TcReach - Sheet L: 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 TcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 TcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 TcReach - Channel L:2767 . 00 kc : 42 . 00 s : 0 . 0340 impTcReach - Sheet L: 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 impTcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 impTcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 impTcReach - Channel L:2767 . 00 kc :42 . 00 s : 0 . 0340 PEAK RATE : 17 . 09 cfs VOL: 8 . 65 Ac-ft TIME : 480 min BASIN ID: DEV025 NAME: DEV SITE 25 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 46 inches AREA. . : 25 . 64 Acres 23 . 06 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 29 . 53 min 29 . 53 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 TcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 TcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 TcReach - Channel L:2767 . 00 kc :42 . 00 s : 0 . 0340 impTcReach - Sheet L : 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 impTcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 impTcReach - Channel L: 235 . 00 kc : 42 . 00 s : 0 . 0420 impTcReach - Channel L:2767 . 00 kc :42 . 00 s : 0 . 0340 PEAK RATE : 21 . 17 cfs. VOL: 10 . 61 Ac-ft TIME : 480 min r 6/12/00 3 :40 :42 pm Dodds Engineers, Incorporated page 3 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: DEV100 NAME: DEV SITE 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 25 . 64 Acres 23 . 06 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 29 . 53 min 29 . 53 min ABSTRACTION COEFF: 0 .20 TcReach - Sheet L: 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 .3300 TcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 TcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 TcReach - Channel L:2767 . 00 kc :42 . 00 s : 0 . 0340 impTcReach - Sheet L : 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 impTcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 impTcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 impTcReach - Channel L:2767 . 00 kc :42 . 00 s : 0 . 0340 PEAK RATE: 25 . 07 cfs VOL: 12 . 48 Ac-ft TIME : 480 min B. Water Quality Calculations A combination of dead storage in the pond along with a biofiltration swale will be used for mitigation of the stormwater to meet Special Requirement #5 and Core Requirement #3 of the 1990 King County Surface Water Design Manual. DEAD STORAGE According to the 1990 King County Surface Water Design Manual, the required volume for dead storage of the ponds shall be equal to the water quality storm in the developed condition. The water quality storm is defined as a storm having a precipitation equal to 1/3 of the 2-year precipitation. The required surface area for the dead storage of the ponds shall be equal to 1% of the impervious surface area tributary to the pond. The areas considered for treatment are those areas tributary to the detention pond. These areas include the developed site along with any open space and tributary area captured by the storm drainage system conveying drainage to the pond. For each area considered for treatment, 6-month storms were calculated. The areas were summed to arrive at a required volume for water quality. See WaterWorks hydrograph summary printout in Section III'C. Hydrograph 13 is the sum of the 6-month storm events of the developed site plus the open space plus the tributary areas (1 & 3). See basin summary printouts on the following pages. The dead storage required for the pond is 51,440 CF. Refer to the volume calculations spreadsheet on the following pages. Dead storage will be accomplished from elevation 391 to elevation 394. The dead storage provided is 97,002 CF which is more than the required. The required dead storage surface area is equal to 1%*(23.06 + 0.00+ 5.69 + 0.80) AC = 12,872 SF. At elevation 394, the surface area is equal to 36,296 SF which exceeds the minimum. 6/12/00 4 : 36 : 15 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: DEV6MO NAME: DEV SITE 6 MONTH STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 0 . 67 inches AREA. . : 25 . 64 Acres 23 . 06 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 29 . 53 min 29 . 53 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 TcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 TcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 TcReach - Channel L:2767 . 00 kc :42 . 00 s : 0 . 0340 impTcReach - Sheet L: 30 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 3300 impTcReach - Sheet L: 100 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0050 impTcReach - Channel L: 235 . 00 kc :42 . 00 s : 0 . 0420 impTcReach - Channel L:2767 . 00 kc :42 . 00 s : 0 . 0340 PEAK RATE: 1 . 86 cfs VOL: 1 . 04 Ac-ft TIME : 480 min BASIN ID: DOS10006 NAME: DEV TRIB AREA 1 6 MONTH STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 0 . 67 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 36 . 74 min 36 . 74 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 0 . 07 cfs VOL: 0 . 09 Ac-ft TIME : 960 min BASIN ID: DOS30006 NAME : DEV TRIB AREA 3 6 MONTH STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA DERV IMP PRECIPITATION. . . . : 0 . 67 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 26 .48 min 26 .48 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 0 . 07 cfs VOL: 0 . 04 Ac-ft TIME: 480 min 6/12/00 4 :36 : 15 pm Dodds Engineers, Incorporated page 2 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: OPEN6MO NAME : OPEN SPACE 6 MO STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 5 . 51 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 0 . 67 inches AREA. . : 5 . 51 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 68 . 12 min 0 . 00 min ABSTRACTION COEFF : 0 .20 TcReach - Sheet L: 300 . 00 ns : 0 . 4000 p2yr: 2 . 00 s : 0 . 0570 TcReach - Shallow L: 250 . 00 ks : 5 . 00 s : 0 . 0560 TcReach - Shallow L: 630 . 00 ks : 5 . 00 s : 0 . 0300 TcReach - Channel L: 670 . 00 kc : 17 . 00 s : 0 . 0240 TcReach - Channel L: 840 . 00 kc : 17 . 00 s : 0 . 0250 PEAK RATE : 0 . 01 cfs VOL: 0 . 01 Ac-ft TIME: 1330 min CALCULATED POND VOLUME CALCULATIONS DEI# 94168 PROJECT NAME: MAPLEWOOD ELEVATION INCREMENTAL TOTAL LIVE VOLUME VOLUME VOLUME SF CF CF CF 391.0 28061 0 �9,589 392.01 31117 29,589 67,413 394.01 36296 97,002 0 394.01 32996 97,0021 0 Surface Areas 70,983 Decreased by 1/1.10 396.0 37987 1 7,9851 70,983 0 396.0 32143 167,985 70,983 Surface Areas 68,694 Decreased by 1/1.30 398.0 36551 236, 779 1 77 7 400.01 41150 314,380 217,378 BIOFIL TRA TION SWALE According to the 1990 King County Surface Water Design Manual, the required flow for design of a biofiltration swale shall be equal to the 2-year outflow from the detention pond. The required bottom width of a 200' biofiltration swale was calculated by using Manning's Equation with an assumed depth of flow and 2-year outflow from the detention/water quality pond. The required flow for the biofiltration Swale is 3.08 cfs. The 100-year outflow is equal to 18.70 cfs. The required bottom width of a 200' biofiltration swale was calculated by using Manning's Equation. According to the spreadsheet on the following pages, the biofiltration swale was designed with wetland vegetation with a depth of 8 inches, an n value equal to 0.35 and a slope of 0.02. For a 200' Swale, the required bottom width is 9.35 feet. The calculated velocity is 0.41 fps which is less than the required 1.5 fps limit. The swale will be designed with a 12.5-foot bottom which exceeds the minimum. The swale was checked for conveyance capacity based on the actual design slope of 0.005, true n value equal to 0.035 and a bottom width equal to 12.5 feet. The flow depth required to carry the 100-year outflow is between 0.64 feet which is less than the design flow depth of 8 inches. The velocity of the 100-year outflow is between 2.03 fps which is less than the required 5 fps limit. ��T T ANAL . i >:>: �r��T T: : Y.:YV: L . ........................................ 8 :Q . k7........................................ ................................. BO�* TT � IN* : 1.�� .. .. . SWALE GEOMETRY JOB NAME: MAPLEWOOD PARCEL BOTTOM SLOPE = 0.0200 JOB#: 94168 SIDE SLOPE (Z:1)= 3.00 OPERATOR: G.R. BROOKS MANNING'S n= 0.350 DATE: 6/13/00 DESIGN FLOW DEPTH WATER QUALITY SWALE BIOFILTRATION SWALE 3 INCHES 4 INCHES 8 INCHES (NATURAL GRASS) WETLAND VEGETATION BOTTOM DESIGN FLOW DESIGN FLOW DESIGN FLOW WIDTH FLOW VELOCITY FLOW VELOCITY FLOW VELOCITY (FEET) (CFS) (FPS) (CFS) (FPS) (CFS) (FPS) 0.00 0.03 0.15 0.06 0.18 0.37 0.28 0.50 0.05 0.17 0.10 0.20 0.50 0.30 1.00 0.08 0.18 0.14 0.22 0.64 0.32 1.50 0.11 0.19 0.19 0.23 0.77 0.33 2.00 0.14 0.20 0.23 0.23 0.91 0.34 2.50 0.17 0.21 0.28 0.24 1.06 0.35 3.00 0.20 0.21 0.33 0.25 1.20 0.36 3.50 0.23 0.21 0.37 0.25 1.34 0.37 4.00 0.25 0.21 0.42 0.25 1.49 0.37 4.50 0.28 0.22 0.47 0.26 1.64 0.38 5.00 0.31 0.22 0.52 0.26 1.78 0.38 5.50 0.34 0.22 0.56 0.26 1.93 0.39 6.00 0.37 0.22 0.61 0.26 2.08 0.39 6.50 0.40 0.22 0.66 0.26 2.23 0.39 7.00 0.43 0.22 0.71 0.27 2.38 0.40 7.50 0.46 0.22 0.76 0.27 2.53 0.40 8.00 0.49 0.22 0.80 0.27 2.68 0.40 8.50 0.52 0.23 0.85 0.27 2.83 0.40 9.00 0.55 0.23 0.90 0.27 2.98 0.41 Im 0.57 0.23 0.93 0.27 Le 1S,_4l 9.50 0.58 0.23 0.95 0.27 3.13 0.41 10.50 0.64 0.23 1.04 0.27 3.43 0.41 11.50 0.70 0.23 1.14 0.27 3.74 0.42 12.50 0.76 0.23 1.24 0.27 4.04 0.42 IL-13.00 0.79 0.23 1.28 0.28 4.19 0.42 - F AST L BI: ........ ......................... ... ..... ............ ........................ SWALE DATA: BOTTOM WIDTH (FT) = 12.50 JOB NAME: MAPLEWOOD PARCEL LEFT SIDE SLOPE (L:1) 3.00 JOB #: 94168 RIGHT SIDE SLOPE (R:l 3.00 OPERATOR: G.R. BROOKS BOTTOM SLOPE (FT/FT 0.0050 DATE: 1/28/00 MANNING'S n = 0.035 FLOW FLOW WETTED HYDRAULIC SWALE FLOW DEPTH AREA PERIMETER RADIUS CAPACITY VELOCITY (FEET) (SQ FT) (FEET) (FEET) (CFS) (FPS) 0.00 0.0000 0.0000 0.0000 0.000 0.000 0.05 0.6325 12.8162 0.0494 0.255 0.404 0.10 1.2800 13.1325 0.0975 0.814 0.636 0.15 1.9425 13.4487 0.1444 1.605 0.826 0.20 2.6200 13.7649 0.1903 2.603 0.993 0.25 3.3125 14.0811 0.2352 3.790 1.144 0.30 4.0200 14.3974 0.2792 5.156 1.283 0.35 4.7425 14.7136 0.3223 6.693 1.411 0.40 5.4800 15.0298 0.3646 8.397 1.532 0.45 6.2325 15.3460 0.4061 10.261 1.646 0.50 7.0000 15.6623 0.4469 12.285 1.755 0.55 7.7825 15.9785 0.4871 14.464 1.858 0.60 8.5800 16.2947 0.5266 16.796 1.958 9S4 9.2288 16.5477 0.5577 18.772 2.034 0.65 9.3925 16.6110 0.5654 19.282 2.053 0.71 10.3873 16.9904 0.6114 22.463 2.163 0.75 11.0625 17.2434 0.6415 24.704 2.233 0.80 11.9200 17.5596 0.6788 27.641 2.319 C. Detention Calculations All site drainage will be collected in a roadway drainage system with roof drains connected directly to the system. Some of the existing offsite tributary areas and open space will be captured and routed through the detention pond. The detention system will be sized using the detention criteria specified in the Determination of Non-Significance (Mitigated), Mitigation Measures Item 2. The stormwater release rate for the developed site shall be limited to 50% of the existing 2 year storm with a safety factor of 10% applied to the detention volume and 100% of the existing 5, 10 and 100 year storms with a safety factor of 30% applied to the detention volume. The developed 2-year, 5-year, 10-year, and 100-year, 24-hour storms were routed through the pond to confirm adequate sizing. The pond to be constructed in the field was reduced by 1/1.10 from EL 394 to EL 396 and reduced by 1/1.30 from EL 396 to EL 400 for calculation of the required pond volume. See pond volume calculations in Section IIIB of this report. See results on the following pages. Hydrographs were generated and are as specified below: Hydrograph Storm Peak Runoff Rate cfs 1 50% existing site 2-year, 24-hour storm+ open 3.09 space 2-year, 24-hour storm+ offsite trib. area 1 2-year, 24-hour storm+ offsite trib. area 3 2 existing site 5-year, 24-hour storm+open space 7.98 5-year, 24-hour storm+offsite trib. area 1 5-year, 24-hour storm+ offsite trib. area 3 5-year, 24- hour storm 3 existing site 10-year, 24-hour storm+ open space 10.49 10-year, 24-hour storm+offsite trib. area 1 10- year, 24-hour storm+ offsite trib. area 3 10-year, 24-hour storm 4 existing site 100-year, 24-hour storm +open 18.73 space 100-year, 24-hour storm+offsite trib. area 1 100-year, 24-hour storm+ offsite trib. area 3 100- ear, 24-hour storm 5 developed site 2-year, 24-hour storm+open 12.51 space 2-year, 24-hour storm+ offsite trib. area 1 2-year, 24-hour storm+ offsite trib. area 3 2-year, 24-hour storm 6 developed site 5-year, 24-hour storm+open 18.75 space 5-year, 24-hour storm+offsite trib. area 1 5-year, 24-hour storm+offsite trib. area 3 5-year, 24-hour storm Hydrograph Storm Peak Runoff Rate cfs 7 developed site 10-year, 24-hour storm+ open 22.45 space 10-year, 24-hour storm+ offsite trib. area 1 10-year, 24-hour storm+ offsite trib. area 3 10- ear, 24-hour storm 8 developed site 100-year, 24-hour storm+ open 33.86 space 100-year, 24-hour storm+ offsite trib. area 1 100-year, 24-hour storm+ offsite trib. area 3 100- ear, 24-hour storm 9 2-year, 24-hour outflow out of pond 3.08 10 5-year, 24-hour outflow out of pond 6.78 11 10- ear, 24-hour outflow out of pond 9.14 12 1 00- ear, 24-hour outflow out of pond 18.70 13 developed site 6-month, 24-hour storm+ open 1.99 space 6-month, 24-hour storm+offsite trib. area (51,440 CF) 1 6-month, 24-hour storm+offsite trib. area 3 6- month, 24-hour storm 6/13/00 8 : 56 : 37 am Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- HYDROGRAPH SUMMARY PEAK TIME VOLUME HYD RUNOFF OF OF Contrib NUM RATE PEAK HYDRO Area cfs min. cf\AcFt Acres --------------------------------------------- --------------------------------------------- 1 3 . 085 540 126406 cf 73 . 84 2 7 . 976 490 293685 cf 73 . 84 3 10 .487 490 363460 cf 73 . 84 4 18 . 728 490 585580 cf 73 . 84 5 12 . 505 490 300517 cf 73 . 84 6 18 . 745 490 436156 cf 73 . 84 7 22 .445 490 516065 cf 73 . 84 8 33 . 861 490 761736 cf 73 . 84 9 3 . 081 1000 300464 cf 73 . 84 10 6 . 776 700 436063 cf 73 . 84 11 9 . 144 650 515957 cf 73 . 84 12 18 . 702 570 761593 cf 73 . 84 13 1 . 988 490 51440 cf 73 . 84 6/13/00 8 : 58 : 22 am Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 STAGE STORAGE TABLE CUSTOM STORAGE ID No. POND Description: CALCULATED POND SIZE STAGE <----STORAGE----> STAGE <----STORAGE----> STAGE <----STORAGE----> STAGE <----STORAGE----> (ft) ---cf--- --AC-Ft- (ft) ---cf--- --Ac-Ft- (ft) ---cf--- --Ac-Ft- (ft) ---cf--- --Ac-Ft- 394.00 0.0000 0.0000 395.60 56786 1.3036 397.20 112199 2.5757 398.80 170757 3.9201 394.10 3549 0.0815 395.70 60336 1.3851 397.30 115634 2.6546 398.90 174642 4.0092 394.20 7098 0.1630 395.80 63885 1.4666 397.40 119069 2.7334 399.00 178528 4.0984 394.30 10647 0.2444 395.90 67434 1.5481 397.50 122504 2.8123 399.10 182413 4.1876 394.40 14197 0.3259 396.00 70983 1.6295 397.60 125938 2.8911 399.20 186298 4.2768 394.50 17746 0.4074 396.10 74418 1.7084 397.70 129373 2.9700 399.30 190183 4.3660 394.60 21295 0.4889 396.20 77852 1.7872 397.80 132808 3.0488 399.40 194068 4.4552 394.70 24844 0.5703 396.30 81287 1.8661 397.90 136242 3.1277 399.50 197953 4.5444 394.80 28393 0.6518 396.40 84722 1.9449 398.00 139677 3.2065 399.60 201838 4.6336 394.90 31942 0.7333 396.50 88157 2.0238 398.10 143562 3.2957 399.70 205723 4.7227 395.00 35492 0.8148 396.60 91591 2.1026 398.20 147447 3.3849 399.80 209608 4.8119 395.10 39041 0.8963 396.70 95026 2.1815 398.30 151332 3.4741 399.90 213493 4.9011 395.20 42590 0.9777 396.80 98461 2.2603 398.40 155217 3.5633 400.00 217378 4.9903 395.30 46139 1.0592 396.90 101895 2.3392 398.50 159102 3.6525 395.40 49688 1.1407 397.00 105330 2.4180 398.60 162987 3.7417 395.50 53237 1.2222 397.10 108765 2.4969 398.70 166872 3.8309 ti 6/13/00 8 : 56 : 37 am Dodds Engineers, Incorporated page 5 MAPLEWOOD PARCEL PROJECT NO. 94168 STAGE DISCHARGE TABLE COMBINATION DISCHARGE ID No. COMBO Description: COMBO Structure : ORIFICE Structure : Structure : NOTCH Structure : Structure : STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> (ft) ---Cfs-- ------- (ft) ---Cfs - (ft) ---Cfs-- ------- (ft) ---Cfs-- ------- 394.00 0.0000 395.60 2.0954 397.20 2.9633 398.80 13.827 394.10 0.5238 395.70 2.1598 397.30 3.0092 398.90 14.834 394.20 0.7408 395.80 2.2225 397.40 3.1488 399.00 15.856 394.30 0.9073 395.90 2.2834 397.50 3.5070 399.10 16.891 394.40 1.0477 396.00 2.3427 397.60 3.9824 399.20 17.936 394.50 1.1713 396.10 2.4005 397.70 4.5447 399.30 18.989 394.60 1.2831 396.20 2.4570 397.80 5.1774 399.40 20.049 394.70 1.3859 396.30 2.5122 397.90 5.8697 399.50 21.113 394.80 1.4816 396.40 2.5663 398.00 6.6136 399.60 22.181 394.90 1.5715 .396.50 2.6192 398.10 7.4026 399.70 23.249 395.00 1.6565 396.60 2.6711 398.20 8.2316 399.80 24.317 395.10 1.7374 396.70 2.7219 398.30 9.0960 399.90 25.383 395.20 1.8146 396.80 2.7719 398.40 9.9920 400.00 26.445 395.30 1.8887 396.90 2.8210 398.50 10.916 395.40 1.9600 397.00 2.8692 398.60 11.865 395.50 2.0288 397.10 2.9166 398.70 12.836 6/13/00 8 : 56 : 37 am Dodds Engineers, Incorporated page 6 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- STAGE DISCHARGE TABLE NOTCH WEIR ID No. NOTCH Description: NOTCH Weir Length: 1 . 9700 ft . Weir height (p) : 3 . 3400 ft . Elevation : 397 . 34 ft . Weir Increm: 0 . 10 STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> (ft) ---Cfs-- ------- (ft) ---Cfs (ft) ---Cfs-- ------- (ft) ---Cfs-- ------- 397.34 0.0000 398.00 3.3005 398.70 9.2449 399.40 16.200 397.40 0.0943 398.10 4.0484 398.80 10.197 399.50 17.229 397.50 0.4080 398.20 4.8367 396.90 11.167 399.60 18.261 397.60 0.8394 398.30 5.6610 399.00 12.152 399.70 19.294 397.70 1.3583 398.40 6.5173 399.10 13.150 399.80 20.328 397.80 1.9482 398.50 7.4021 399.20 14.158 399.90 21.359 397.90 2.5983 398.60 8.3123 399.30 15.176 400.00 22.387 6/13/00 8 : 56 : 37 am Dodds Engineers, Incorporated page 7 MAPLEWOOD PARCEL PROJECT NO. 94168 STAGE DISCHARGE TABLE MULTIPLE ORIFICE ID No. ORIFICE Description: ORIFICE Outlet Elev: 394 . 00 Elev: 392 . 00 ft Orifice Diameter: 7 . 8130 in. STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> STAGE <--DISCHARGE---> (ft) ---Cfs-- ------- (ft) ---Cfs-- ------- (ft) ---Cfe-- ------- (ft) ---Cfs-- ------- 394.00 0.0000 395.60 2.0954 397.20 2.9633 398.80 3.6293 394.10 0.5238 395.70 2.1598 397.30 3.0092 398.90 3.6669 394.20 0.7408 395.80 2.2225 397.40 3.0545 399.00 3.7041 394.30 0.9073 395.90 2.2834 397.50 3.0991 399.10 3.7410 394.40 1.0477 396.00 2.3427 397.60 3.1430 399.20 3.7775 394.50 1.1713 396.10 2.4005 397.70 3.1864 399.30 3.8136 394.60 1.2831 396.20 2.4570 397.80 3.2292 399.40 3.8494 394.70 1.3859 396.30 2.5122 397.90 3.2714 399.50 3.8849 394.80 1.4816 396.40 2.5663 398.00 3.3130 399.60 3.9201 394.90 1.5715 396.50 2.6192 398.10 3.3542 399.70 3.9549 395.00 1.6565 396.60 2.6711 398.20 3.3949 399.80 3.9894 395.10 1.7374 396.70 2.7219 398.30 3.4350 399.90 4.0237 395.20 1.8146 396.80 2.7719 398.40 3.4748 400.00 4.0576 395.30 1.8867 396.90 2.8210 .398.50 3.5140 395.40 1.9600 397.00 2.8692 398.60 3.5528 395.50 2.0288 397.10 2.9166 398.70 3.5913 6/13/00 8 : 56 :38 am Dodds Engineers, Incorporated page 8 MAPLEWOOD PARCEL PROJECT NO. 94168 LEVEL POOL TABLE SUMMARY MATCH INFLOW -STO- -DIS- <-PEAK-> OUTFLOW STORAGE <- DESCRIPTION---------> (cfs) (cfs) --id- --id- <-STAGE> id (Cfs) VOL (cf) 2 YR 3.09 12.51 POND COMBO 397.35 9 3.08 3 ac-ft 5 YR .... . . ............ ....... 7.98 18.74 POND COMBO 398.02 10 6.78 3 ac-ft 10 YR ...... .................. 10.49 22.45 POND COMBO 398.31 11 9.14 3 ac-ft 100 YR ....................... 18.73 33.86 POND COMBO 399.27 12 18.70 4 ac-ft The routing results are summarized as follows: ROUTING RESULTS 2 year 5-year 10 year 100 year storm storm storm storm Qp allowable release from site (cfs) 3.09 7.98 10.49 18.73 (adjusted 2 yr outflow by 50%) Hydrographs 1, 2, 3, 4 Qp developed (cfs) 12.51 18.75 22.45 33.86 Hydrographs 5, 6, 7, 8 Qp out of pond(cfs) 3.08 6.78 9.14 18.70 Hydrographs 9, 10, 11, 12 Pond live storage required CF 117,410 140,475 151,541 189,122 Pond live storage provided(CF)w/ 138,361 168,394 183,041 231,526 safety factor of 10% for 2-yr and 30% for remaining storms See attached volume calculations spreadsheet for the actual pond to be constructed on the following page. Design of the emergency overflow spillway for the pond is calculated below. The maximum water surface is at EL 399.27. The spillway will be placed at EL 400.00 with a berm located at EL 401.00 The depth of water over the spillway will be 0.7 feet. The overflow elevation therefore will be equal to 400.0 plus 0.7 or 400.7. L=(Q100/(3.21H3'2)) - 2.4H L= (33.86/(3.21(0.7)3/2)) - 2.4(0.7) = 16.3 feet minimum => USE 16.5 feet A minimum of 0.3 feet of freeboard above the overflow elevation is required. Therefore, the berm height for the pond needs to be greater than or equal to 400.70 plus 0.3 or 401.00. The actual berm height for the pond is 401.00 which is equal to the minimum. POND TO BE CONSTRUCTED VOLUME CALCULATIONS DEI# 94168 PROTECT NAME: MAPLEWOOD ELEVATION INCREMENTAL TOTAL LIVE VOLUME VOLUME VOLUME SF CF CF CF 391.0 28061 0 29,589 392.0 31117 29,589 67,413 394.01 36296 97,002 0 78,082 396.01 41786 175,084 78,082 89,302 398.0 47516 264,3861 167,384 101,011 400.0 53495 365,3971 268,395 6/13/00 8 : 58 : 22 am Dodds Engineers, Incorporated page 2 MAPLEWOOD PARCEL PROJECT NO. 94168 STAGE STORAGE TABLE CUSTOM STORAGE ID No. PONDREAL Description: REAL POND SIZE STAGE <----STORAGE----> STAGE <----STORAGE----> STAGE <----STORAGE----> STAGE <----STORAGE----> (ft) ---cf--- --AC-Ft- (ft) ---cf--- --Ac-Ft- (ft) ---cf--- --AC-Ft- (ft) ---cf--- --Ac-Ft- 394.00 0.0000 0.0000 395.60 62466 1.4340 397.20 131663 3.0226 398.80 207788 4.7702 394.10 3904 0.0896 395.70 66370 1.5236 397.30 136128 3.1251 398.90 212839 4.8861 394.20 7808 0.1793 395.80 70274 1.6133 397.40 140593 3.2276 399.00 217890 5.0021 394.30 11712 0.2689 395.90 74178 1.7029 397.50 145059 3.3301 399.10 222940 5.1180 394.40 15616 0.3585 396.00 78082 1.7925 397.60 149524 3.4326 399.20 227991 5.2339 394.50 19521 0.4481 396.10 82547 1.8950 397.70 153989 3.5351 399.30 233041 5.3499 394.60 23425 0.5378 396.20 87012 1.9975 397.80 158454 3.6376 399.40 238092 5.4658 394.70 27329 0.6274 396.30 91477 2.1000 397.90 162919 3.7401 399.50 243142 5.5818 394.80 31233 0.7170 396.40 95942 2.2025 398.00 167384 3.8426 399.60 248193 5.6977 394.90 35137 0.8066 396.50 100408 2.3050 398.10 172435 3.9586 399.70 253243 5.8137 395.00 39041 0.8963 396.60 104873 2.4075 398.20 177485 4.0745 399.80 258294 5.9296 395.10 42945 0.9859 396.70 109338 2.5100 398.30 182536 4.1904 399.90 263344 6.0456 395.20 46849 1.0755 396.80 113803 2.6126 398.40 187586 4.3064 400.00 268395 6.1615 395.30 50753 1.1651 396.90 118268 2.7151 398.50 192637 4.4223 395.40 54657 1.2548 397.00 122733 2.8176 398.60 197687 4.5383 395.50 58562 1.3444 397.10 127198 2.9201 398.70 202738 4.6542 i SECTION IV: CONVEYANCE SYSTEM ANALYSIS & DESIGN: The conveyance system for the site was designed for both the 25-year, 24-hour storm and the 100-year, 24-hour storm. The conveyance sheets were generated using the rational method to calculate flows for each area collected by each catch basin. A conveyance spreadsheet was produced for both the 25-year and 100-year storms. Backwater calculations were also performed in accordance with KCSWDM, Chapter 4. The flows generated from both storms were input into a backwater analysis spreadsheet to confirm adequate sizing. Some of the flows were manipulated if they exceeded the SBUH flows for the entire site including the tributary areas and open space collected by the conveyance system. The backwater analysis was performed to ensure that during the 25-year design storm, the maximum water surface elevation in each structure did not exceed an elevation equal to 0.5' less the rim and during the 100-year design storm, the maximum water surface elevation did not exceed the rim. Exceedance of a rim would be allowed if the topography of the basin would allow the overflow to be conveyed to the next downstream catch basin or if the topography could ensure that ponding would not cause damage. A weighted C value was used for each area collected by each catch basin. A breakdown of the amount of the site, open space, and tributary areas flowing into each catch basin is listed on the following pages. For each area(site, open space, and/or tributary area), an average C value was used. The amount of area that a specific catch basin collects takes into account the amount of the site, open space, and/or tributary area it is collecting and calculates a weighted C value for that catch basin, See the following pages for the calculated C values for each catch basin. Developed Site: C (average) _ [25.64Ac(0.25) +23.06Ac(0.90)]/48.70Ac = 0.56 Open Space: C = 0.15 Tributary Area 1: C (average) _ [2.OlAc(0.15) + 0.86Ac(0.20) + 2.07Ac(0.25) + 4.39Ac(0.80) + 1.30Ac(0.90)]/l0.63Ac= 0.53 Tributary Area 3: C (average) _ [7.66Ac(0.15) + 0.26Ac(0.20) + 0.28Ac(0.80) + 0.80Ac(0.90)]/9.00Ac= 0.24 The maximum SBUH flows were calculated and used for those rational flows that exceeded the maximum SBUH flows. The maximum SBUH flows were calculated for both the 25-year and 100-year storms. See Waterworks printouts on the following pages for flows from the developed site, open space, and tributary areas. The four areas for a specific storm were added together to derive the maximum SBUH flows. Maximum SBUH Flow=Developed Site + Open Space+Tributary Area 1 + Tributary Area 2 Max. SBUH Flow (25-year)=21.51 + 1.84+ 3.90+ 3.04 = 30.29 cfs Max. SBUH Flow (100-year) =25.48 +2.36 +4.74+ 3.83 = 36.41 cfs Catch SBUH Areas SBUH Flows (cfs) Basin 25-Year 100-Year 2 A,B,C,D,1,2,3,4,5,6,7,8,9,10 33.81 40.46 3 A,B,C,D,1,2,3,4,5,6,7,8,9,10 33,81 40.46 3A 7 L69 2.01 4 9 2.87 3.42 4A 9 2.87 3.42 5 9 2.87 3.42 5A 9 2.87 3.42 6 9 2.87 3.42 6A 9 2.87 3.42 7 9 2.87 3.42 7A 9 2.87 3.42 7B 9 2.87 3.42 7C 9 2.87 3.42 7D 9 2.87 3.42 8 9 2.87 3.42 8A 9 2.87 3.42 9 9 2.87 3.42 10 9 2.87 3.42 11 A,B,C,D,1,2,3,4,5,6,7,8 30.65 36.69 12 A,B,C,D,1,2,3,4,5,6,7,8 30.65 36.69 12A 7 1.69 2.01 13 A,B,C,D,1,2,3,4,5,6,7,8 30.65 36.69 14 A,B,C,D,1,2,3,4,5,6,7,8 30.65 36.69 15 A,B,C,D,1,2,3,4,5,6,7,8 30.65 36.69 16 6,8 6.22 7.36 17 6,8 6.22 7.36 18 6,8 6.22 7.36 18A 8 1.78 2.11 19 6,8 6.22 7.36 20 8 1.78 2.11 20A 8 1.78 2.11 21 6 4.44 5.24 21 A 6 4.44 5.24 22 6 4.44 5.24 23 6 4.44 5.24 23 A 6 4.44 5.24 24 6 4.44 5.24 24A 6 4.44 5.24 Catch SBUH Areas SBUH Flows (cfs) Basin 25-Year 100-Year 25 6 4.44 5.24 25A 6 4.44 5.24 26 6 4.44 5.24 26A 6 4.44 5.24 27 6 4.44 5.24 28 6 4.44 5.24 28A 6 4.44 5.24 29 6 4.44 5.24 30 6 4.44 5.24 3'0A rrr 6 4.44 5.24 31 6 4.44 5.24 31 A 6 4.44 5.24 32 A,B,C,D,1,2,3,4,5,7 24.43 29.33 32A 7 1.69 2.01 33 A,B,C,D,1,2,3,4,5,7 24.43 29.33 33A 7 1.69 2.01 34 AB,C,D,1,2,3,4,5 22.73 27.32 35 AB,C,D,1,2,3,4,5 22.73 27.32 35A 5 2.30 2.72 36 AB,C,D,1,2,3,4,5 22,73 27.32 37 A,D,1,2,3,4,5 20.48 24.64 38 5 2.30 2.72 39 A,2,3,4 11.73 14.01 40 A,2,3 9.84 11.77 40A 3 7.33 8.80 41 A,2,3 9.84 11.77 41A 3 7.33 8.80 42 A,2,3 9.84 11.77 43 A,2,3 9.84 11.77 43A 3 7.33 8.80 44 A,2,3 9.84 11.77 45 A,2,3 9.84 11.77 45A 3 7.33 8.80 46 A,2,3 9.84 11.77 47 A,3 8.80 10.54 48 3 7.33 8.80 48A 3 7.33 8.80 49 A 1.47 1.74 Catch SBUH Areas SBUH Flows (cfs) Basin 25-Year 100-Year 49A A 1.47 1.74 50 A 1.47 1.74 50A A 1.47 1.74 51 B 1.16 1.37 52 B 1.16 1.37 53 B 1.16 1.37 54 B 1.16 1.37 54A B 1.16 1.37 55 C 1.09 1.31 56 C 1.09 1.31 57 C 1.09 1.31 58 D,1,5 8.75 10.63 59 D,1,5 8.75 10.63 60 D,1,5 8.75 10.63 60A 5 2.30 2.72 6`1 D,1,5 8.75 10.63 62 D,1,5 8.75 10.63 62A 5 2.30 2.72 63 D,1 6.45 7.91 64 1 1.90 2,33 64A 1 1.90 2.33 65 D,1 6.45 7,91 65A 1 1.90 2.33 66 D,1 6.45 7.91 67 1 1.90 2.33 67A 1 1.90 2.33 68 D,1 6.45 7.91 68A 1 1.90 2.33 69 D,1 6.45 7.91 69A 1 1.90 2.33 70 D,1 6.45 7.91 70A 1 1.90 2.33 71 D 4.55 5.59 71A D 4.55 5.59 72 D 4.55 5.59 72A D 4.55 5.59 73 D 4.55 5.59 73A D 4.55 5.59 Catch SBUH Areas SBUH Flows(cfs) Basin I 25-Year I 100-Year 74 41 1.891 2.24 74A 4 1.89 2.24 75 4 1.89 2.24 75A 4 1.89 2.24 76 4 1.89 2.24 76A 4 1.89 2.24 77 4 1.89 2.24 78 4 1.89 2.24 79 4 1.89 2.24 $0 4 1.89 2.24 81 4 1.89 2.24 82 4 1.89 2.24 82A 4 1.89 2.24 83 4 1,89 2.24 83A 4 1.89 2.24 84 2 1.04 1.23 84A 2 1.04 1.23 85 2 1.04 1.23 85A 2 1,04 1.23 86 D 4.55 5.59 87 D 4.55 5.59 88 D 4.55 5.59 8`8A D 4.55 5.59 89 D 4.55 5.59 6/14/00 1 :29 :43 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: DEV02501 NAME : DEV SITE 25 YR STORM (AREA 1) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 1 . 98 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 1 . 04 Acres 0 . 94 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 1 . 11 cfs VOL: 0 .43 Ac-ft TIME: 480 min BASIN ID: DEV02502 NAME : DEV SITE 25 YR STORM (AREA 2) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 1 . 85 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 0 . 97 Acres 0 . 88 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE: 1 . 04 cfs VOL: 0 .40 Ac-ft TIME: 480 min BASIN ID: DEV02503 NAME : DEV SITE 25 YR STORM (AREA 3) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 6 . 31 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 3 . 32 Acres 2 . 99 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE: 3 . 54 cfs VOL: 1 . 37 Ac-ft TIME : 480 min BASIN ID: DEV02504 NAME : DEV SITE 25 YR STORM (AREA 4) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 3 . 32 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 1 . 75 Acres 1 . 57 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE: 1 . 86 cfs VOL: 0 . 72 Ac-ft TIME : 480 min 6/14/00 1 :29 :43 pm Dodds Engineers, Incorporated page 2 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: DEV02505 NAME : DEV SITE 25 YR STORM (AREA 5) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 4 . 08 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 46 inches AREA. . : 2 . 15 Acres 1 . 93 Acres TIME INTERVAL. . . . ; 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 2 . 29 cfs VOL: 0 . 89 Ac-ft TIME : 480 min BASIN ID: DEV02506 NAME: DEV SITE 25 YR STORM (AREA 6) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 7 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 46 inches AREA. . : 4 . 01 Acres 3 . 62 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE: 4 . 29 cfs VOL: 1 . 66 Ac-ft TIME : 480 min BASIN ID: DEV02507 NAME: DEV SITE 25 YR STORM (AREA 7) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 2 . 89 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 1 . 52 Acres 1 . 37 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 1 . 62 cfs VOL: 0 . 63 Ac-ft TIME : 480 min BASIN ID: DEV02508 NAME: DEV SITE 25 YR STORM (AREA 8) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 2 . 97 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 1 . 56 Acres 1 .41 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF : 0 . 20 PEAK RATE: 1 . 67 cfs VOL: 0 . 65 Ac-ft TIME: 480 min 6/14/00 1 :29 :43 pm Dodds Engineers, Incorporated page 3 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: DEV02509 NAME: DEV SITE 25 YR STORM (AREA 9) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 4 . 69 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 46 inches AREA. . : 2 .47 Acres 2 .22 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 2 . 63 cfs VOL: 1 . 02 Ac-ft TIME : 480 min BASIN ID: DEV0250A NAME: DEV SITE 25 YR STORM (AREA A) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 2 . 62 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 1 . 38 Acres 1 .24 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 1 . 47 cfs VOL: 0 . 57 Ac-ft TIME : 480 min BASIN ID: DEV0250B NAME: DEV SITE 25 YR STORM (AREA B) SBUH METHODOLOGY TOTAL AREA. . . . . . . ; 2 . 06 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . ; TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 1 . 08 Acres 0 . 98 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 1 . 16 cfs VOL: 0 .45 Ac-ft TIME : 480 min BASIN ID: DEV0250C NAME: DEV SITE 25 YR STORM (AREA C) SBUH METHODOLOGY TOTAL AREA. . . . . . . ; 1 . 76 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . ; TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 0 . 93 Acres 0 . 83 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 0 . 99 cfs VOL: 0 . 38 Ac-ft TIME : 480 min 6/14/00 1 :29 :44 pm Dodds Engineers, Incorporated page 4 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: DEV0250D NAME: DEV SITE 25 YR STORM (AREA D) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 3 .49 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 1 . 84 Acres 1 . 65 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE: 1 . 96 cfs VOL: 0 . 76 Ac-ft TIME: 480 min BASIN ID: DEV02510 NAME : DEV SITE 25 YR STORM (AREA 10) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 0 . 52 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . ; 3 .46 inches AREA. . : 0 .27 Acres 0 .25 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE: 0 . 29 cfs VOL: 0 . 11 Ac-ft TIME : 480 min 6/14/00 1 : 31 : 21 pm Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: DEV10001 NAME : DEV SITE 100 YR STORM (AREA 1) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 1 . 98 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 1 . 04 Acres 0 . 94 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 1 . 31 cfs VOL: 0 . 51 Ac-ft TIME : 480 min BASIN ID: DEV10002 NAME: DEV SITE 100 YR STORM (AREA 2) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 1 . 85 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 0 . 97 Acres 0 . 88 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . . 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 1 . 23 cfs VOL: 0 .47 Ac-ft TIME : 480 min BASIN ID: DEV10003 NAME: DEV SITE 100 YR STORM (AREA 3) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 6 . 31 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 3 . 32 Acres 2 . 99 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 4 . 19 cfs VOL: 1 . 62 Ac-ft TIME : 480 min BASIN ID: DEV10004 NAME : DEV SITE 100 YR STORM (AREA 4) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 3 . 32 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPEIA DERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 1 . 75 Acres 1 . 57 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE: 2 . 20 cfs VOL: 0 . 85 Ac-ft TIME : 480 min 6/14/00 1 :31 :21 pm Dodds Engineers, Incorporated page 2 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: DEV10005 NAME : DEV SITE 100 YR STORM (AREA 5) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 4 . 08 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 2 . 15 Acres 1 . 93 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 2 . 71 cfs VOL: 1 . 05 Ac-ft TIME: 480 min BASIN ID: DEV10006 NAME : DEV SITE 100 YR STORM (AREA 6) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 7 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPElA DERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 4 . 01 Acres 3 . 62 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 5 . 06 cfs VOL: 1 . 96 Ac-ft TIME : 480 min BASIN ID: DEV10007 NAME : DEV SITE 100 YR STORM (AREA 7) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 2 . 89 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 1 . 52 Acres 1 . 37 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 1 . 92 cfs VOL: 0 . 74 Ac-ft TIME : 480 min BASIN ID: DEV10008 NAME : DEV SITE 100 YR STORM (AREA 8) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 2 . 97 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 1 . 56 Acres 1 .41 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 1 . 97 cfs VOL: 0 . 76 Ac-ft TIME : 480 min 6/14/00 1 : 31 :21 pm Dodds Engineers, Incorporated page 3 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: DEV10009 NAME : DEV SITE 100 YR STORM (AREA 9) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 4 . 69 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 2 .47 Acres 2 .22 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 3 . 11 cfs VOL: 1 , 20 Ac-ft TIME: 480 min BASIN ID: DEV1000A NAME : DEV SITE 100 YR STORM (AREA A) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 2 . 62 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 1 . 38 Acres 1 .24 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 1 . 74 cfs VOL: 0 . 67 Ac-ft TIME: 480 min BASIN ID: DEV1000B NAME : DEV SITE 100 YR STORM (AREA B) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 2 . 06 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 1 . 08 Acres 0 . 98 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 .20 PEAK RATE : 1 . 37 cfs VOL: 0 . 53 Ac-ft TIME : 480 min BASIN ID: DEV1000C NAME: DEV SITE 100 YR STORM (AREA C) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 1 . 76 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 0 . 93 Acres 0 . 83 Acres TIME INTERVAL. , . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 1 . 17 cfs VOL: 0 .45 Ac-ft TIME : 480 min r 6/14/00 1 :31 :21 pm Dodds Engineers, Incorporated page 4 MAPLEWOOD PARCEL PROJECT NO. 94168 --------------------------------------------------------------------- --------------------------------------------------------------------- BASIN SUMMARY BASIN ID: DEV1000D NAME: DEV SITE 100 YR STORM (AREA D) SBUH METHODOLOGY TOTAL AREA. . . . . . . : 3 . 49 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 1 . 84 Acres 1 . 65 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 2 . 32 cfs VOL: 0 . 89 Ac-ft TIME: 480 min BASIN ID: DEV10010 NAME : DEV SITE 100 YR STORM (AREA 10 SBUH METHODOLOGY TOTAL AREA. . . . . . . : 0 . 52 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 0 . 27 Acres 0 . 25 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 10 . 00 min 10 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE: 0 . 35 cfs VOL: 0 . 13 Ac-ft TIME: 480 min MAPLEWOOD PARCEL Catch Basin Sub-basin Areas Note: CB's 41,42, 71, 72, 73, 86, 88A, & 89 have flows coming from Tributary Area 3. All other CB's collecting tributary flows are collecting from Tributary Area 1. Sub- Total Site Upstream Trib. Open Space Composite Basin/ Area Area Area(Acres) Area C Value Catch (Acres) (Acres),C=0.56 C=0.53 (Trib 1) (Acres), C=0.15 Basin C=0.24 (Trib 3) 3 :::0`.52 0.52 0.00 0.00 3A a54: 0.54 0.00 0.00 >;::*:4:56:::: 4 D � >.'. 0.57 0.00 0.00 :::::::O;S6: ::::: 4A :a:3....:: 0.55 0.00 0.00: ::::O:Sfi:: 5 0>5b 0.56 0.00 0.000:56..: 5A __ 4..54..>: 0.54 0.00 0.00 ....a:36::: 6 0.39 0.00 0.00 :::: 0:56` 6A 0.17 0.00 O.00: S6:::: 7 0.02 0.00 0.00 '»: 0:56< 7A 0'30: : 0.30 0.00 0.00 7B ;:::0;1:2:<:: 0.12 0.00 0.00 : : 05. 6: 7C >:43:0.4:.:: 0.04 0.00 0.00 ::..0 5:6:>: 7D :02:7::: 0.27 0.00 8 0:45:::: 0.45 0.00 0.00 ::'::0 66: 8A '>:033<:> 0.33 0.00 0.00 9 0.2 ;::: 0.21 0.00 O.00:::::a: :::: 10 ...:...:.::..A.*....3. 3.7::: 0.17 0.19 1.01 11 :::::0:.3:9 0.39 0.00 0.00:::::::::0.'56:...:. 12- :::0::24:<>: 0.24 0.00 0.00 . 12A „ 3:�: 0.39 0.00 0.00 13 f};:41:::: 0.41 0.00 0.00:. <O: Fi>:>: 14 0.46 0.00 0.00 >::0:56 15 :::::0.:lb..:: 0.16 0.00 16 >:00 :<. 0.02 0.00 0.00 ::: :0:56::.::: 17 fl:60:::: 0.60 0.00 0.00:::: 0:56::: 18 :: 0.43 0.00 0.00 ::::0:56 18A >:1.84:`: 1.20 0.00 0.64 :`::: 19 :0:4:8::: 0.48 0.00 0.00 .....0.56:::: 20 fl.05:: 0.05 0.00 0.00 20A <019::: 0.19 0.00 0.00 :::::0:56:: 21 A:23:::: 0.23 0.00 0.00:::::0 3:6... 21A 0:4:4:: 0.44 0.00 0.00 ::�::::4:56:::::: Sub- Total Site Upstream Trib." Open Space Composite Basin/ Area Area Area(Acres) Area C Value Catch (Acres) (Acres), C=0.56 C=0.53 (Trib 1) (Acres), C=0.15 Basin C=0.24 (Trib 3) 22 6U:' :: 0.16 0.00 0.00:::::::::.3; 23 :#}32::: 0.32 0.00 0.00 {3:56:::::: 23A < 65»s: 0.65 0.00 24 0.11 0.00 0.00".... :SE:::::::: 24A :: : 0.75 0.00 0.00:::::0a :::::::: 25 0.04 0.00 0.00 25A ::0: 6:::: 0.76 0.00 0.00:::::::0~:5:6:::;:::: 26A : 094:::: 0.89 0.05 0.00:::::::::( : :6::::::: 27 ::�5:�::: 0.57 0.00 0.00; 3:56:::::::: 28 ::�. f ::: 0.11 0.00 0.00 -0:: .'::::::: 28A : 0.88 0.14 0.00 >::{}:56:: 29 ::::A2:3:::::: 0.23 0.00 0.00 ' ::.: 30 : 0.09 0.00 0.00: >: 3:5C:: 30A ::0;g7:?<:: 0.83 0.14 0.00 ::>::::0:56>::::: 31 >Q;( #?: : 0.01 0.00 ::::::::43: 6::>':. 31A 0.52 0.08 0.00 :::::{:SG:::::::: 32 :Q:{$:::: 0.08 0.00 0.00::::::::::0'5.6:::::;:: 32A 0.08 0.00 0.32: :::::023::::::::: 33 : 0.04 0.00 0.00::::::::::�}: :::;:::: 33A 0.10 0.00 0.10 :::::(:3f:::::::: 34 ::..:#9.... 0.19 0.00 O.00:::::b �:::::::: 35 0.34 0.00 0.00::: :::O:S6:;:;::::: 35A : 0.29 0,00 0.00::::::::::0:; 6:::::::: 36 :::n:{19::: 0.09 0.00 0.00 ::::::{3:56:::::::: 37 :::�:60 ::: 0.60 0.00 0.00 0 3: :::::;:: 38 ::n::i: ;:::;:: 0.11 0.00 0.00: fl:56:::::::: 39 :::::A:00::::::: 0.00 0.00 O.00:::::::::D;: b........ 40 :;:0::?4::::::: 0.24 0.00 0.00 ::::::::fl: C:::::;:: 40A 0.43 0.00 0.00::::::::Q; ::::::: 41 : 0.53 0.25 0.00::::::>`4:4C"::> 41A 0.08 0.00 0.00 42 f}33::>: 0.27 0.08 0.00::::>:'::p;49:"*"" 43 :::::0i-'03 <: 0.03 0.00 : :0:56: :: 43A ;:083 ::: 0.83 0.00 d: '?'` 44 0.28 0.00 0.00 45 : 0.25 0.00 O.00 45A. :::'fl60:::: 0.60 0.00 46 #:{ # : 1.01 0.00 0.00' :... :0: 6::':::: 47 >n:78::> 0.78 0.00 0.00:'?:'fl:S6:?:<` 48 '.:':4.15:� 0.151 0.001 0.001: ::::::Q: Sub- Total Site Upstream Trib. Open Space Composite Basin/ Area Area Area(Acres) Area C Value Catch (Acres) (Acres), C=0.56 C=0.53 (Trib 1) (Acres), C=0.`15 Basin C=0.24(Trib 3) 48A : 0.83 3.46 0.00:::::::::.0: :.:.:.:. 49 :::#} :#: 0.21 0.00 (:5 49A 0.42 1.45 0.00:::::::::0� ? :::::::: 50 # ::: 0.95 0.34 0.00::: :::{#:5 ::;::: 50A #:3:#:::: 1.04 0.27 0.00:»>:i :::::: 51 0.97 0.00 0.00 ............. 52 >fl:{f::<? 0.06 0.00 0.00:::?::::0:�6>:::. 53 :::n62::: 0.62 0,00 0.00 (i:SE::::;::: 54 ::::�34»:: 0.34 0.00 0.00:;:::::::D~: fi :::` 54A 0.07 0.00 0.00 : 56;:::::: 55 >:>A77:::: 0.77 0.00 0.00:::: .' 0: 6:::::::: 56 :: 0:48>' 0.48 0.00 0.00: 4:SC:::::::: 57 :::: ::::::: 0.51 0.00 0.60:::::::::434::::: 58 ::::a::QO :: 0.00 0.00 ::: 59 A72 :::: 0,68 0.00 0.04:::: 60 : 0,15 0.00 0.00:::::::::: ::::: 60A :::0ifi5::: 0.65 0.00 0.00: ::::{: :::::: 61 >:` i39::: 0.39 0.0U 0.00 f::::::: 62 :::0>32::: 0.32 0.00 0.00 ::::::::D. x:::::: 62A 0.27 0.00 0.00:::>:0a6::>: 63 0.00 0.00 0.00::::: 64 ::Q # :::: 0.17 0.00 0.00:*::'::,:, 64A 0.18 0.00 0.17; ?:`a:3 ::'`: 65 >fl #6:>:: 0: 3;::::':: 0.15 0.00 65A >:::::0.4.2:>: 0.23 0.00 0.19::::::::: 66 ::: :(j0 ::: 0.00 0.00 0.00: 0�:3:6:::::: „67 >:::a:#?6::: 0.04 0.00 0.02::::::::0:4 :::::::: 67A 0:(34:>:< 0.04 0.00 0.00::::::::::a;S:6::.`::::: ............ .............. ........... .............. 68 :::3::3$::::: 0.14 0.99 68A ? 0.07 0.00 0.00 69 a7 ::::::: 0.75 0.00 69A ?:0;07::::::: 0.07 0.00 0.00:.'.'.':'.-;$ ::}:.: 70 :4k{3$:::: 0.08 0.00 70A 6'>:':: 0.06 0.00 0.00::, ::':': 71 #:CiS:::: 0.12 1.53 71A :::fl06::: 0.06 0.00 72 :::2:69 ::: 0.14 2.55 ::::;:: 72A 0.07 0.00 0.00: 73 >fl38: 0.14 0.44 0.00:::::::;:0: :.::: 73A ...0:{ i::: 0.06 0.00 0.00: Sf?;": 74' >::0:{9 ;:: 0.09 0.00 0.00 6<>;;: Sub- Total Site Upstream Trib. Open Space Composite Basin/ Area Area Area(Acres) Area C Value Catch (Acres) (Acres), C=0.56 C=0.53 (Trib 1) (Acres), C=0.15 Basin C=0.24 (Trib 3) 74A :::Q;:i3:::: 0.13 0.00 0.00::::::4:66:::: .............. ............ .............. 75 0.09 0.00 0.00........0:56..... ............ .............. 75A :::Qk49>::: 0.09 0.00 76 : #}U9::: 0.09 0.00 0.00 76A0.07 0.00 0.00:::=:: ............ .............. ............. 77 0.05 0.00 0.00 :::: 78 0.17 0.00 0.00 79 :::Oi >: 0.14 0.00 0.00 :::: (: ::: ............ ............. ........... - 80 >:: 0.24 0.00 0.00::::>4 81 :::n23: 0.23 0.00 0.00 :::: 82 :::::0�$`'': 0.28 0,00 0.00::':::::1 : 5?:::} 82A ::::n: 5::::::: 0.42 0.00 0.03 :....:.::fl......::::: 83 :::::045::::::: 0.45 0.00 0.00::::::::: 83A : 0.78 0.00 0.13 :.':::::'0:60:::::::: 84 >:A:.X: >::: 0.11 0.00 0.00 >0; 6:::: 84A ::::f?7fi:::::: 0.76 0.00 0.00:::::::::f3:66:::::::: 85 ;:•:A;22x> 0.22 0.00 0.00.>;:•: 0;660::: 85A <:s4 67............... 0.76 3.91 0.00 86 :::: i4:$::: 0.64 0.84 0.00.:::: 0:39.::... ............ .............. 87 ::(} 35> :: 0.35 0.00 0.00: 88 0.23 0.00 0.00 88A :: :{6:::: 0.59 1.47 89 :1>94::: 1.091 0.85 3/1/00 8 : 9 : 33 am Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: DEV025 NAME : DEV SITE 25 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 . 46 inches AREA. . : 25 . 64 Acres 23 . 06 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 28 . 19 min 28 . 19 min ABSTRACTION COEFF : 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0380 TcReach - Shallow L: 690 . 00 ks : 11 . 00 s : 0 . 0420 impTcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0380 impTcReach - Shallow L: 690 . 00 ks : 11 . 00 s : 0 . 0420 PEAK RATE : 21 . 51 cfs VOL : 10 . 61 Ac-ft TIME : 480 min BASIN ID: OPEN025 NAME : OPEN SPACE 25 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 5 . 51 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 5 . 51 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 10 . 00 min 0 . 00 min ABSTRACTION COEFF : 0 . 20 PEAK RATE : 1 . 84 cfs VOL: 0 . 77 Ac-ft TIME : 480 min BASIN ID: TRI131025 NAME: TRIB AREA 1 25 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPEIA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 29 . 83 min 29 . 83 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 TcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 impTcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 impTcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 PEAK RATE : 3 . 90 cfs VOL: 1 . 97 Ac-ft TIME : 490 min 3/1/00 8 : 9 : 33 am Dodds Engineers, Incorporated page 2 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID : TRIB3025 NAME : TRIB AREA 3 25 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE . . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 .46 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 15 . 91 min 15 . 91 min ABSTRACTION COEFF: 0 .20 TcReach - Sheet L: 260 . 00 ns : 0 . 0110 p2yr: 2 . 00 s : 0 . 0660 TcReach - Sheet L: 40 . 00 ns : 0 . 4000 p2yr: 2 . 00 s : 0 . 0660 TcReach - Shallow L: 410 . 00 ks : 5 . 00 s : 0 . 0560 impTcReach - Sheet L: 260 . 00 ns : 0 . 0110 p2yr: 2 . 00 s : 0 . 0660 impTcReach - Sheet L: 40 . 00 ns : 0 .4000 p2yr: 2 . 00 s : 0 . 0660 impTcReach - Shallow L: 410 . 00 ks : 5 . 00 s : 0 . 0560 PEAK RATE : 3 . 04 cfs VOL: 1 . 38 Ac-ft TIME : 480 min 3/1/00 8 : 9 :46 am Dodds Engineers, Incorporated page 1 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: DEV100 NAME : DEV SITE 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 48 . 70 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 25 . 64 Acres 23 . 06 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 86 . 00 98 . 00 TC. . . . : 28 . 19 min 28 . 19 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0380 TcReach - Shallow L: 690 . 00 ks : 11 . 00 s : 0 . 0420 impTcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0380 impTcReach - Shallow L : 690 . 00 ks : 11 . 00 s : 0 . 0420 PEAK RATE : 25 .48 cfs VOL: 12 .48 Ac-ft TIME : 480 min BASIN ID: OPEN100 NAME : OPEN SPACE 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 5 .51 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 5 . 51 Acres 0 . 00 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 00 0 . 00 TC. . . . . 10 . 00 min 0 . 00 min ABSTRACTION COEFF: 0 . 20 PEAK RATE : 2 . .36 cfs VOL: 0 . 95 Ac-ft TIME : 480 min BASIN ID: TRIB1100 NAME : TRIB AREA 1 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 10 . 63 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 4 . 94 Acres 5 . 69 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 83 . 80 91 . 10 TC. . . . : 29 . 83 min 29 . 83 min ABSTRACTION COEFF: 0 . 20 TcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 TcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 impTcReach - Sheet L: 300 . 00 ns : 0 . 1500 p2yr: 2 . 00 s : 0 . 0430 impTcReach - Shallow L: 1050 . 00 ks : 11 . 00 s : 0 . 0410 PEAK RATE : 4 . 74 cfs VOL: 2 . 36 Ac-ft TIME : 490 min R 3/1/00 8 : 9 :46 am Dodds Engineers, Incorporated page 2 MAPLEWOOD PARCEL PROJECT NO. 94168 BASIN SUMMARY BASIN ID: TRID3100 NAME : TRIB AREA 3 100 YR STORM SBUH METHODOLOGY TOTAL AREA. . . . . . . : 9 . 00 Acres BASEFLOWS : 0 . 00 cfs RAINFALL TYPE. . . . : TYPElA PERV IMP PRECIPITATION. . . . : 3 . 95 inches AREA. . : 8 . 20 Acres 0 . 80 Acres TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 81 . 30 98 . 00 TC. . . . : 15 . 91 min 15 . 91 min ABSTRACTION COEFF : 0 .20 TcReach - Sheet L: 260 . 00 ns : 0 . 0110 p2yr: 2 . 00 s : 0 . 0660 TcReach - Sheet L: 40 . 00 ns : 0 . 4000 p2yr: 2 . 00 s : 0 . 0660 TcReach - Shallow L: 410 . 00 ks : 5 . 00 s : 0 . 0560 impTcReach - Sheet L: 260 . 00 ns : 0 . 0110 p2yr: 2 . 00 s : 0 . 0660 impTcReach - Sheet L: 40 . 00 ns : 0 . 4000 p2yr: 2 . 00 s : 0 . 0660 impTcReach - Shallow L : 410 . 00 ks : 5 . 00 s : 0 . 0560 PEAK RATE: 3 . 83 cfs VOL: 1 . 69 Ac-ft TIME : 480 min SR : ` : Y . i�71 �1�k7Uf LOCATION: KING COUNTY 24-HR RAINFALL: 3.46 INCHES OB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 25 YEAR i iINC'R.E191BN3AIi::::i`•`:RUNUT;'R::i�`i`iEEiEii`ii:iii;i;i;i;:`•; ::':j�:::::�RAaNFAEiE....NIBUT u A...............................17P1 .,._..,.,.,.,P).,.,..•.,YI,.F,.,..,ACT,.l4...,. RA..EL.;..;.;.;. IPE:CAPtG}IYiS..... 1ILXi;i;i;i #IP�SEGiY➢6N�''' i'S'i1Ri ''FE ''''''':Eiiii i''''''"`''':i '''`'' `i: `'0''i '`'` '''iii •:•:•:•:•:: :::::.::::: :;:!:;:!:..,: :::: ..... ... .....7:.,..,.,.....A,PM,:p... ..........Fa3E i ipi:ipipi;ipi;i;ipi;i;i; iSUiFtnl,.,,.,.,CQNC..,.,..,IN ENSITY........F40)Y......,.117ANMiy s..,AIAMRFIiR...SEAPl;;.•..f.Ef9GT.H..VB40C1.T.Y,.:..TIME..... i.�J..L).....V,.CL4... EACT.y ?�i .,.(AtEk9) :. G..:... .:(A*CJ. (A C'#:: Yi+llNtrtfW�). (INh➢R) ;:. f�➢;}):':': rt. ;:;: fll➢4H�SJ;::(P�tu'�i`iT) ,:EFE£T) :;(FTi6E4')::::11411ryUT�� {�'F9).:;. tFiGS>*C) ..,.;:1PPR�ENT).:;::: 7D 7C 0.270 0.56 0.151 0.151 10.00 2.06 0.312 0.012 12 2.000 27 3.51 0.13 5.458 6.95 5.7% 7C 7B 0.040 0.56 0.022 0.174 10.13 2.04 0.355 0.012 12 1.240 53 3.23 0.27 4.298 5.47 8.3% 7B 7A 0.120 0.56 0.067 0,241 10.40 2.01 0.484 0.012 12 0.500 130 2.52 0.86 2.729 3.47 17.7% 89 88 1.940 0.42 0.815 0.815 10.00 2.06 1.679 0.012 12 0.500 82 3.66 0.37 2.729 3.47 61.5% 88A 88 2.060 0.33 0.680 0.680 10.00 2.06 1,401 0.012 8 2.000 27 5.83 0.08 1.851 5.30 75.7% 88 87 0.230 0.56 0.129 1.623 10.37 2.01 3.266 0.012 12 2.000 186 7.23 0.43 5.458 6.95 59.8% 87 86 0350 0.56 0.196 1.819 10.80 1.96 3.565 0.012 12 0.500 27 3.47 0.13 2.729 3.47 130.6% 86 71 1.480 0.38 0.562 2.382 10.93 1.94 4.631 0.012 12 1.020 52 4.96 0.17 3.898 4.96 118.8% 85A 85 4.670 0.53 2.475 2.475 10.00 2.06 5.100 0.012 8 2.000 27 5.30 0.08 1.851 5.30 275.5% 85 84 0.220 0.56 0.123 2.598 10.08 2.05 5.324 0.012 12 4.950 165 11.54 0.24 8.587 10.93 62.0% 84A 84 0.760 0.56 0.426 0.426 10.00 2.06 0.877 0.012 8 2.000 27 5.20 0.09 1.851 5.30 47.4% 84 46 0.110 0.56 0.062 3.086 10.32 2.02 6.227 0.012 12 0.500 72 3.47 0.35 2.729 3.47 228.2% 83A 83 0.910 0.50 0.455 0.455 10.00 2.06 0.937 0.012 8 2.000 27 5.30 0.08 1.851 5.30 50.6% 83 82 0.450 0.56 0.252 0.707 10.08 2.05 1.449 0.012 12 5.050 114 8.01 0.24 8.674 11.04 16.7% 82A 82 0.450 0.53 0.239 0.239 10.00 2.06 0.491 0.012 8 2.000 27 4.46 0.10 1.851 5.30 26.5% 82 81 0.280 0.56 0.157 1.102 10.32 2.02 2.225 0.012 12 4.520 96 8.78 0.18 8.206 10.45 27.1% 81 80 1 0.230 0.56 0.129 1.231 10.50 2.00 2.457 0.012 12 2.120 78 6.83 0.19 5.620 7.16 43.7% 80 79 0,240 0.56 0.134 1.366 10.69 1.97 2.693 0.012 12 0.500 27 3.96 0.11 2.729 3.47 98.7% 79 78 0,140 0.56 0,078 1.444 10.81 1.96 2.828 0.012 12 0.500 65 3.96 0.27 2.729 3.47 103.6% r7� 77 0.170 0.56 0.095 1.539 11.08 1.93 2.966 0.012 12 0.500 28 3.47 0.13 2.729 3.47 108.7% 76 0.050 0.56 0.028 L567 11.22 1.91 2.997 0.012 12 2.960 166 8.02 0.34 6.527 8.31 45.9% `;. .....V kM.,C �.l,.Y. 1�E .3.IJ .; �.�1:.:.:.:.:.:.:.:.:. LOCATION: KING COUNTY 24-HR RAINFALL: 3.46 INCHES [JOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 25 YEAR rRi,�;il.iG.:iINi;'TE;;4Ni:`:3:i;�i.;:':I:;N::.;::.(:r>A..CjM.tIB.LETA.NSI:'': ::�C.b.';�R.'B'�Bij'N"I>""F j;;i.:;�Si.•;,i;'::::.'i ��`i:��ii:;��ii:� �.'•�.'•".•..'•�.'•�:';•;::!.::.�.:::.�t:'''j'P' :R.:AtNFAE.f�::i:::,�:.T;I�.U�'fB•C'U'F'T'9'A)�'R'':Y:.:�:::::.:.�.::'1;N:.i:';�A..i';�.�N;i'i;�.N;i''�.�;i',�.�.i'C;�.:.i',�.'3.i':;�:.:.::,:;::,::�t.):':E:#'tE:AN:. R.EE.7 :.; ... : t ...... ,. N C fiI':CA C ..Y11M7B ' fN� R rti T) E ): :{ E) ,(TC':::;i : s. ;i : C ;. : ; �;.. i{PERCENTI!. f. 76A 76 0.070 0.56 0.039 0.039 10.00 2.06 0.081 0.012 8 2.000 27 2.52 0.18 1.851 5.30 4.4% 76 75 0,090 0.56 0.050 1.657 11.56 1.88 3.106 0.012 12 7.050 152 11.35 0.22 10.248 13.05 30.3% 75A 75 0.090 0.56 0.050 0.050 10.00 2.06 0.104 0.012 8 14.400 27 5.41 0.08 4,968 14.23 2.1 75 74 0.090 0.56 0.050 1.758 1.78 1.85 3.255 0.012 12 0.800 170 5.01 0.57 3.452 4.40 94.3 74A 74 0.130 0.56 0,073 0.073 10.00 2.06 0.150 0.012 8 2.000 1 27 3.13 0.14 1.851 5.30 8.1% 74 39 0.090 0.56 0.050[0.219 81 12.35 1.80 3.378 0.012 12 0.800 55 5.01 0.18 3.452 4.40 97.9% 73A 73 0.060 0.56 0.03434 10.00 2.06 0.069 0.012 8 2.000 27 2.28 0.20 1.851 5.30 3.7% 73 72 0.580 0.32 0.186 10.20 2.03 0.446 0.012 12 3.500 4.96 0.00 7.221 9.19 6.2% 72A 72 0.070 0.56 0.039 0.039 10.00 2.06 0.081 0.012 8 2.000 27 2.52 0.18 i.851 5.30 4.4% 72 71 2.690 0.26 0.699 0.958 10.20 2.03 1.949 0.012 12 2.660 185 6.97 0.44 6.295 8.02 31.0% 71A 71 0.060 0.56 0.034 0.034 10.00 2.06 0.069 0.012 8 2.000 27 2.28 0.20 1.851 5.30 3.7% 71 70 1,650 0.26 0.429 3.802 10.64 1.98 7.525 0.012 12 0.500 165 3.47 0.79 2.729 3.47 275.7% 70A 70 0.060 0.56 0.034 0.034 10.00 2.06 0.069 0.012 8 2.000 27 2.28 0.20 1.851 5.30 3.7% 70 69 0.080 0.56 0.045 3.881 11.43 1.89 7.330 0.012 12 1.830 200 6.65 0.50 5.221 6.65 140.4% 69A 69 0.070 0.56 0.039 0.039 10.00 2.06 0.081 0.012 8 2.000 27 2.52 0.18 1.851 5.30 4.4% 69 68 0.750 0.56 0.420 4.340 11.93 1.84 7.972 0.012 12 2.150 200 7.21 0.46 5.659 7.21 140.9% I' . �+ �+r T i':..1-7.,...V,.....7,r[.. 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LOCATION: KING COUNTY 24-FIR RAINFALL: 3.46 INCHES [JOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 25 YEAR : . . . . ::;: i i1N@BEE$N ALi``i SigUIdlNr'iii :..::: . .:::. . . ............ ...R. 11TK,X....................... ;TRRV$L....;..;.:.:.plrE:G1F! iCICYiSCk14IMA12Yiii . .. ............CD1�)F[C,B1V3i.i ; iSUR7LXFp?i;i; UNCii;i;i ii1NTEN5iTYi ipipi;iP.C{11X.•:•:••:MANNtNG3: blAaS1$7$R:::::SbOPE.•..fENGTEi::YELOCt7Y:::::::TIME::::::; JU3l :i::V lGG E i kCT..F>aEaE ..t :..<311!Nr'!'BS).. ..;.(lN(HR).. f:::i::ECFi3):�.:E. ..:.:.:.rt..:.;.:.::.:f!NCti6S);:.(PERCEi1c�T)!..(FEET);:i;:(FTrS�...,(Mirl[3TESL::,:;:{Cr'6)::Ei.:C>•F�S�Cy.,:;.;:{P,ERCENT).`.; 68A 68 0.070 0.56 0.039 0.039 10.00 2.06 0.081 0.012 8 2.000 27 2.52 0.18 1.851 5.30 68 66 3.380 0.28 0.946 5.325 12.39 1.79 9.543 0.012 12 4.420 74 10.33 0.12 8.115 10.33 117.6% 67A 67 0.040 0.56 0.022 0.022 10.00 2.06 0.046 0.012 8 2000. 27 2.02 0.22 1.851 5.30 2.5% 67 66 0.060 0.42 0.025 0.049 10.22 2.03 0.097 0.012 12 0.500 51 1.49 0.57 2,729 3.47 3.5% 66 65 0.000 0.56 0.000 5.373 12.51 1.78 9.569 0,012 12 0.500 85 3.47 0.41 2.729 3.47 350.6% 65A 65 0.420 0.37 0.155 0.155 10.00 2.06 0.320 0.012 8 2.540 48 4.15 0.19 2.086 5.98 15.3% 65 63 0.160 0.53 0.085 5.613 12.92 1.74 9.791 0.012 12 0.500 110 3.47 0.53 2.729 3.47 358.7% 64A 64 0.350 0.36 0.126 0.126 10.00 2.06 0.260 0.012 8 2.000 45 3.69 0.20 1.851 5.30 14.0% 64 63 0.170 0.56 0.095 0.221 10.20 2.03 0.450 0.012 12 11.030 30 7.02 0.07 12.819 16.32 3.5% 63 62 0.000 0.56 0.000 5.834 13.45 1.70 9.915 0.012 12 0.500 66 3.47 0.32 2.729 3.47 363.3% 62A 62 0.270 0.56 0,151 0.151 10.00 2.06 0.312 0.012 8 9.500 27 6.53 0.07 4.035 11.56 7.7% 62 61 0.320 0.56 0.179 6.165 13.77 1.67 10.319 0.012 12 0.500 162 3.47 0,78 2.729 3.47 378.1 61 60 0.390 0.56 0.218 6.383 14.54 1.62 10.310 0.012 12 0.500 76 3.47 0.34 2.729 3.47 377.8% 60A 60 0.650 0.56 0.364 0,364 10.00 2.06 0.750 0.012 8 8.200 27 8.32 0.05 3.749 10.74 20.0% 60 59 0.150 0.56 0.084 6.831 14.88 1.59 10.871 0.012 12 0.550 85 3.64 0.39 2.862 3.64 379.8% 59 58 0.720 0.54 0.389 7.220 15.27 1.56 11.299 0.012 12 0.500 124 3.47 0.59 2.729 3.47 414.0% 58 37 0.000 0.56 0.000 7.220 15.86 1.53 11.022 0.012 12 0.540 124 3.61 0.57 2.836 3.61 388.6% L56 1.110 0.34 0.377 0.377 10.00 2.06 0.778 0.012 12 2.200 I50 4.85 0.52 5.725 7.29 13 57 56 55 0.480 0.56 0.269 0.646 10.52 1.99 1.289 0.012 12 0.500 27 3.41 1 0.13 2.729 3.47 47.2 :CONV...... Y' YA �E :: :#,1� �: DESI. :�1....:.:::::::::: LOCATION: KING COUNTY 24-HR RAINFALL: 3.46 INCHES FOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 25 YEAR INCRi..PIT44:: ::R[T'CCDX'Riiii i 5i55ii5555ii i5' .'.':':;.;:::.;:': i ii', i i i iii i ii[:""iii: :ii i[ i i°°' `• ii is i�i; ``i' `i'i' '''i":'i ':':' 'SSii TINEEOF._..;RNtNFi£f..;.TklBtITkRX.... :•........PIP£:•:•::•:•:PIRE::•:::F►PE.:• :•ACTiE4[ ::•:TRAu6L A. :sur'::•:.i ;.;.;.;.y NT.,..,.,.,.,.AREA......,.,...CblsRt(C}6NT............................. UM/afF TB. SfAPE•:::LENGTB::V.ELOCITY ;::::::::: ::: UNLFI'$9.. 1. ...,.t....�'3.:.,tfi.......). �:::;fINFEIR},, .;:.:.,.fGeSY:�:�.?'s5:?'rt;...;..:.::.fINGU6S)!!iE1'>✓ T): kE,ET); ::(FTrSEC);:!:(tFitNl3T�S�..;:.iY�FB):;[: (ETiSECERCENTJ!i:i 55 36 0.770 0.56 0.431 1.077 10.65 1.98 2.131 0.012 12 4,980 65 8.99 0.12 8.613 10.97 24.7% 54A 54 0.070 0.56 0.039 0.039 10.00 2.06 0.081 0.012 8 2.000 27 2.52 0.18 1.851 5.30 4.4% 54 53 0.340 0.56 0.190 0.230 10.18 2.04 0A68 0.012 12 1.300 130 3.53 0.61 4.401 5.60 10.6% 53 52 0.620 0.56 0.347 0.577 10.79 1.96 1.131 0.012 12 0.500 27 3.27 0.14 2.729 3.47 41.4% 52 51 0.060 0.56 0.034 0.610 10.93 1.94 1,187 0.012 12 1.730 86 5.17 0.28 5.077 6.46 23.4% 51 34 0.970 0.56 0.543 L154 11.21 1.91 2.207 0.012 12 0.500 185 3.86 0.80 2.729 3.47 80.9% 50A 50 1.310 0.55 0.721 0.721 10.00 2.06 1.485 0.012 8 2.000 27 5.89 0.08 1.851 5.30 80.2% 50 49 1.290 0.55 0.710 1.430 10.08 2.05 2.932 0.012 12 4.180 82 9.19 0.15 7.891 10.05 37.2% 49A 49 1.870 0.54 1.010 1.010 10.00 2.06 2.081 0.012 8 2.000 44 5.30 0.14 1.851 5.30 112.4% 49 47 0.210 0.56 0.118 2.557 10.23 2.03 5A94 0.012 12 4.090 215 10.63 0.34 7.806 9.94 66.5% 48A 48 4.290 0.54 2.317 2.317 10.00 2.06 4.773 0.012 8 2.000 14 5.30 0.04 1.851 5.30 257.8% 48 47 0.150 0.56 0.084 2.401 10.04 2.05 4.932 0.012 12 1.370 27 5.75 0.08 4.518 5.75 109.2% 47 46 0.780 0.56 0.437 5.395 10.56 1.99 10.727 0.012 12 4.180 284 10.05 0.47 7.891 10.05 135.9% 46 45 1.010 0.56 0.566 9.046 11.03 1.93 17.485 0.012 12 4.650 122 10.60 0.19 8.323 10.60 210.1% 45A 45 0.600 0.56 0.336 0.336 10.00 2.06 0.692 0.012 8 2.000 28 4.85 0.10 1.851 5.30 37.4% 45 44 0.250 0.56 0.140 9.522 11.23 1.91 18.199 0.012 12 4.850 78 10.82 0.12 8.500 10.82 214.1% 44 43 0.280 0.56 0.157 9.679 11.35 1.90 18.372 0.012 12 6.090 65 12.13 0.09 9.525 12.13 192.9% 43A 43 0.830 0.56 0.465 0.465 10.00 2.06 0.958 0.012 8 2.000 27 5.30 0.08 1.851 5.30 51.7% 43 42 0,030 0.56 0.017 10.160 11.43 1.89 19.188 0.012 l2 4.100 98 9.95 0.16 7.815 9.95 245.5 42 41 0.350 0.49 0,172 10.332 11.60 1.87 19.332 0.012 12 4.530 1 77 10.46 0.12 8.215 10.46 235.3% ..:.:.: ::. T EI' SI;.; 17:.: 1-\.1' ,. 1;°E .;1•� 1 .# �:! DE T .,., LOCATION: KING COUNTY 24-HR RAINFALL: 3.46 INCHES FOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 25 YEAR i E�INCREiHBN3AL':� i1iiRUNt�ERii:i:iiiii ... .... .. .. i[v1OF.. 343NF±if. 77tIBtl.TARY.••:•:•:.:.:.:.:.:.:.:..::.:P3PEi:i::f i:iPlpE:::i`:PIKE'?:?AGTUN :E` RAYBL i :'::pIPI .C 'PAC.TY SUM ......... Gbt N7: tt116iS�: �����1COlSFBIC BN3:l: .. '•'ra..V:: �::::: :: ::::::::::::::::::::::.:..::::::::::::::::::::::::::: SUM A,,,,,Ct]NC:;' `INTENSITY :E E FLi11Y 1NA1QN11VC3.;;D1AM83BR ;SfOPE 1fENC18 VELOCItt TIME: Qpi i L) ...io ...).....tCTYc fFflt4k F.;. ..RQR1 iii1`Cl'risyyi.>i`:;.: ?:''iiii ' `' `'j .:............................................. .................................................................. ....... '.fF`EE'tj: `EF'TiSE Cj:',.OIYIINUTESJ:;::;:(CF'Sf::. I,ET�SEC) {RERC!';NTJ;:;:; 41A 41 0.080 0.56 0.045 0.045 10.00 2.06 0.092 0.012 8 2.000 27 2.52 0.18 L851 5.30 5.0% 41 40 0.780 0.46 0.359 10.735 11.72 i.86 19.950 0.012 12 3,100 120 8.65 0.23 6.796 8.65 293.6% 40A 40 0.430 0.56 0.241 0.241 10.00 2.06 0.496 0.012 8 2.000 27 4.46 0.10 1.851 5.30 26.8 40 39 0.240 0.56 0.134 11.111 11.95 1.83 20.387 0.012 12 1.090 55 5.13 0.18 4.030 5.13 505.9% 39 37 0.000 0.56 0.000 12.991 12.53 1.78 23.114 0.012 18 6.630 1 185 18.41 0.17 29.301 16.58 78.9% 38 37 0.110 0.56 0.062 0.062 10.00 2.06 0.127 0.012 12 20.000 29 5.05 0.10 17.261 21.98 0.7% 37 36 0.600 0.56 0.336 20.609 12.70 1.76 36.353 0.012 24 5.000 177 18.66 0.16 54.801 17.44 66.3% 36 35 0.090 0.56 0.050 21.737 1 12.86 1.75 38.035 0.012 24 0.500 159 5.52 0.48 [17.329 5.52 219.5% 35A 35 0.290 0.56 0.162 0.162 10.00 2.06 0.335 0.012 8 8.400 27 6.41 0.073.794 10.87 8.8% 35 34 0.340 0.56 0.190 22.090 13.34 1.71 37.742 0.012 24 5.160 124 18.96 0.11 55.671 17.72 67.8% 34 33 0.190 0.56 0.106 23.350 13.45 1.70 39.684 0.012 24 0.500 78 5.52 0.24 17.329 5.52 229.0% 33A 33 0.200 0.36 0.072 0.072 10.00 2.06 0.148 0.012 8 18.200 27 6.08 0.07 5.585 16.00 2.7% 33 32 0.040 0.56 0.022 23.444 13.68 1.68 39.397 0.012 24 0.500 157 5.52 0.47 17.329 5.52 227.3% 32A 32 0.400 0.23 0.092 0.092 10.00 2.06 0.190 0.012 8 9.200 27 5.40 0.08 3.971 11.38 4.8% 32 15 0.080 0.56 0.045 23.581 14.16 1.64 38.759 0.012 24 12.420 38 26.53 0.02 86.370 27.49 44.9% :. : /+ :. .....U!>ter ...!*!O�.1,.Y.E.VANCK:1.7.Y�� .:����LX�::::::::::::::::: LOCATION: KING COUNTY 24-IIR RAINFALL: 3.46 INCHES [JOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 25 YEAR :i i:INCREh16N•AL' '' :::F:F: .•.............:.:tINiCOF.,: RA3NEAE.f. ..T.RIBUTARY. ..:.:.:.: P'3P;E.;.:..:.,.CIPE .;.;PIPE;., ;A<.TIEAi.;. 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Ef,..: l 1. 31A 31 0.600 0.56 0.336 0.336 10.00 2.06 0.692 0.012 8 2.000 27 4.85 0.09 1.851 5.30 37.4°% 31 29 1 0.010 0.56 0.006 0.342 10.09 2.05 0.700 0.012 12 4.300 190 6.01 0.53 8.004 10.19 8.7% 30A 30 0970 0.56 0.543 0.543 10.00 2.06 1.119 0.012 8 2.000 15 5.58 0.04 1.851 5.30 60.5% 30 29 0.090 0.56 0.050 0.594 10.04 2.05 1.220 0.012 12 0.500 27 3.35 0.13 2.729 3.47 447°% 29 27 0.230 0.56 0.129 I.064 10.62 1.98 2.108 0.012 12 4.600 198 8.64 0.38 8.278 10.54 25.5% 28A 28 1.020 0.56 0.571 0.571 10.00 2.06 1.177 0.012 8 2.000 15 5.60 0.04 1.851 5.30 63.6% 28 27 0.110 0.56 0.062 0.633 10.04 2.05 1.300 0.012 12 0.500 27 3.41 0.13 2.729 3.47 47.6% 27 25 0.570 0.56 0.319 2.016 11.00 1.94 3.904 0.012 12 4.800 83 10.55 0.13 8.456 10.77 46.2% 26A 26 0.940 0.56 0.526 0.526 10.00 2.06 1.085 0.012 8 2.000 14 5.52 0.04 1.851 5.30 58.6% 26 25 0.040 0.56 0.022 0.549 10.04 2.05 1.128 0.012 12 0.500 27 3.27 0.14 2.729 3.47 41.3% 25A 25 0.760 056 0.426 0.426 10.00 2.06 0.877 0.012 8 2.000 15 5.20 0.05 1.851 5.30 47.4% 25 24 0.040 0.56 0.022 3.013 11.13 1.92 5.790 0.012 12 4.700 218 11.51 0.32 8.368 10.65 69.2% 24A 24 0.750 0.56 0.420 0.420 10.00 2.06 0.865 0.012 8 2.000 13 5.20 0.04 1.851 5.30 46.7% 24 22 0.110 0.56 0.062 3.494 11.45 1.89 6.594 0.012 12 5.600 75 12.68 0.10 9.134 11.63 72.2% 23A 23 0.650 0.56 0.364 0.364 10.00 2.06 0.750 0.012 8 6.600 38 7.71 0.08 3.363 9.63 22.3% 23 22 0.320 0.56 0.179 0.543 10.08 2.05 1.113 0.012 12 0.500 27 3.27 0.14 2.729 3.47 40.8% 22 21 0.160 0.56 0.090 4.127 11.55 1.88 7.745 0.012 12 7.000 165 14.30 0.19 10.212 13.00 75.8% 21A 21 0.440 0.56 0.246 0.246 10.00 2.06 0.508 0.012 8 2.000 27 4.46 0.10 1.851 5.30 27.4% ::.'`7,,. ORM::C1.11.`IVE.YANCE::S.Y17.11'M:DESI".....;...... LOCATION: KING COUNTY 24-HR RAINFALL: 3.46 INCHES .JOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 25 YEAR IrICRFE1GNt it: :::: tjld .. F Nt F..:ti4iRFAf7 .JUBl1TARX. ;.;.;.p '.,.,JtPE.,.,..,.,.PIPE......,.,FIPG;:;:.ALTllitli::::?`I1iiV1iL.:. :PI....CA........ U14IMARY..: �PIPESBt6 GR MS.::::::''iih6ii:::�:::::::CDEI+RiCI • '..i..i..'..'0"'................ QFiC . .'iSENfi[TY. M:';'",:.. °'..;.SOE'5.i '.E:.;.G ..'V :O;'C;:;I:T;'i;': V"( L;;:. Q(ACTYSFEFxI££-k F...,.( :;w:::;: ..RQR ...TA. `:ii;i;i;i;i'!C"?5i;i;i;i:5i i:(A:. )E!i:'s::'A!tiXi :{fiigvJr�yS1:::_: N FiR)..:....(CFS J.R.... P7CHRS PEBCEiV. .. F ! ......�:. ... .. .L....... ..E<...... .......)........,.........f!....)., f.....TT...(FEBT),..,.EF'I'.SEC).:..(R7INUTE�..,.,.{CF3).;.;..C;�'SECj.:....,.(I'ERCENTI:;;�:, 21 19 0.230 0.56 0.129 4.502 11.74 1.86 8.359 0.012 12 0.610 54 3.84 0.23 3.015 3.84 277.3% 20A 20 0.190 0.56 0.106 0.106 10.00 2.06 0.219 0.012 8 2.000 27 3.34 0.13 1.851 5.30 11.8% 20 19 0.050 0.56 0.028 0.134 10.13 2.04 0.275 0.012 12 3.100 200 4.11 0.81 6.796 8.65 4.0% 19 18 0.480 0.56 0.269 4.906 11.97 1.83 8.991 0.012 18 0.940 130 6.93 0.31 11.033 6.24 81.5% 18A 18 1.840 Q42 0.773 0.773 10.00 2.06 L592 0.012 8 2.000 27 5.99 0.08 1.851 5.30 86.0% 18 17 0.430 0.56 0.241 5.919 12.29 1.80 10.668 0,012 18 0.500 100 4.55 0.37 8.047 4.55 132.6% 17 16 0.600 0.56 0.336 6.255 12.65 1.77 11.061 0.012 18 0.500 135 4.55 0.49 8.047 4.55 137.5% 16 15 0.020 0.56 0.011 6.266 13.15 1.72 1 10.808 0.012 18 0.500 60 4.55 0.22 8.047 4.55 134.3% 15 14 0.160 0.56 0.090 29.937 14.18 1.64 49.152 0.012 30 0.500 140 6.40 0,36 31.420 6.40 156.4% 14 13 0.460 0.56 0.258 30.194 14.55 1.62 48.764 0.012 30 0.500 54 6.40 0.14 31.420 6.40 155.2% 13 12 0.410 0.56 0.230 30.424 14.69 1.60 48.829 0.012 30 0.500 42 6.40 0.11 31.420 6.40 155.4% 12A 12 0.390 0.56 0.218 0.218 10.00 2.06 0.450 0.012 8 8.700 27 6.97 0.06 3.861 11.06 11.7% 12 11 0.240 0.56 0.134 30.777 14.80 1.60 49.157 0.012 30 0.500 149 6.40 0.39 31.420 6.40 156.4% 11 3 0.390 0.56 0.218 30.995 15.18 1.57 48.680 0.012 30 0.800 73 8.10 0.15 39.744 8.10 122.5% 10 9 1.370 0.25 0.343 0.343 10.00 2.06 0.706 0.012 12 2.200 55 4.85 0.19 5.725 7.29 12.3% 9 8 0.210 0.56 0.118 0.460 10.19 2.04 0.937 0.012 12 3.000 138 5.92 0.39 6.685 8.51 14.0% 8A 8 0.330 0.56 0.185 0.185 10.00 2.06 0.381 0.012 8 2.000 27 4.11 0.11 1.951 5.30 20.6% 8 7 0.450 0.56 0.252 0.897 10.58 1.99 1.782 0.012 12 15.270 44 12.10 0.06 15.083 19.20 11.9% 7A 7 0.300 0.56 0.168 0.409 IL26 191 0.780 0.012 12 17.100 23 9.65 1 0.04 15.961 20.32 4.9% r w7.. .......... ......1 r,.Y1�, 1JlJ .. leT ,, ,,.... LOCATION: KING COUNTY 24-HR RAINFALL: 3.46 INCHES [JOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 25 YEAR ;;1.. F. F: M iVCR£M.NTA1 :555ii1111yOF ...... TI.613J... .R4#rFFAt�• .TELESUTARY:i 5:55i 5.... :: PIPE:':'::':k[I'B'i:5 Y I AA ............ ...E::::::... :.:..:.:.......:.:..:�CTUAG;:.::.TRA. 4 ..:....... CA..,.,Ca�X:BWMMARY.;:` .r PB.sc�llEiv'e�:� :::'piRBi1:::::::::�::COE..C1ENF. IV:::;: BUM OF; CONC Iv3SNSE ; ;R40W,.. ;M4N i3IC 5 13TgvIBTER S#13PIL I Hl�lTli :YE4KITY; TiMF;: .WFOGL) Y 1?L)) SIEACTYQfFtj#.L PROM:.;:'Tb lAC1t$S). :.....�'........ :.(h.;�:,:,.;. .YA`�:: fMIi9DT?ES):;;:.�pfrtiN).,. .:...(CFS);;�; :;:;:;:.;a .,... .{INC1i�S�.::fP�Rt�1):::(l�•tk.,;:f{"h :: (INirtIrESJ....tEF$).. (��rS};,t) :(i'E1lCEN�).:: 7 6 0.020 0.56 0.011 1.317 11.30 1.90 2.506 0.012 12 0.500 78 3.93 0.33 2.729 3.47 91.8% 6A 6 0.170 0.56 0.095 0.095 10.00 2.06 0.196 0.012 .8 17.500 27 6.75 0.07 5.476 15.69 3.6% 6 5 0.390 0 56 0.218 1.631 11.63 1.87 3.045 0.012 12 0.500 200 3.47 0.96 2.729 3.47 111.6° 5A 5 0.540 0.56 0.302 0.302 10.00 2.06 0.623 0.012 8 8.800 27 8.07 0.06 3.883 11.13 16.0% 5 4 0.560 0.56 0.314 2.247 12.59 1.77 3.985 0.012 12 0.500 200 3.47 0.96 2.729 3.47 146.0% 4A 4 0.550 0.56 0.309 0.308 10.00 2.06 0.635 0.012 8 2.000 27 4.77 0.09 1.851 5.30 34.3% 4 3 0.570 0.56 0.319 2.874 13.55 1.69 4.860 0.012 12 0.500 132 3.47 0.63 2.729 3.47 178.1% 3A 3 0.540 0.56 0.302 0.302 10.00 2.06 0.623 0.012 8 2.000 27 4.69 0.10 1.851 5.30 33.7% 3 2 0.520 0.56 0.291 34.462 15.33 1.56 53.780 0.012 30 0.900 132 8.59 0.26 42.155 8.59 127.6% 2 2A 0.000 0.56 0.000 34.462 15.59 1.54 53.204 0.012 30 11.800 63 27.99 0.04 152.640 31.10 34.9% .. !...R.... .i. l .. .i. 171]f!I�:;:;::EEEEE LOCATION: KING COUNTY 24-HR RAINFALL: 3.95 INCHES OB NAME: MAPLEW'OOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 100 YEAR I.CgE➢ii&tiiAl: :::FtUPI i'lDDIt :::T:: 3YAt1vFA:F.F: . ............ :S[1MMARY:::::: "`'''`':``'`i;iii'°' "'ii'i i°''"''°'i i°''''``:`:i.....''i:5i .... < !:5':':':°i 5i'''0.'''' ;,;.;.;,;AREA..;,;...,;,CPItFPIC,EM3i ?;?.??;?:.??.;:.; SUM.......CQNC,.......INCENS�TY..,.,.,.F.WW......;.MA➢Y3VLiVC .;;PlAititltTRR..;.:SEAPE.;.. 19GT9..yE4QCIT.r......TIME..•..•. 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O) 7D 7C 0.270 0.56 0.151 0.151 10.00 2.42 0.365 0.012 12 2.000 27 3.75 0.12 5.458 6.95 6.7% 7C 7B 0,040 0.56 0.022 0.174 10.12 2.40 0,416 0.012 12 1.240 53 3.31 0.27 4,298 5.47 9.7% 7B 7A 0.120 0.56 0.067 0.241 10.39 2.36 0.568 0.012 12 0.500 130 2.69 0.80 2.729 3.47 20.8% 89 88 1.940 00.42 0.815 0.815 10.00 2.42 1.969 0.012 12 0.500 82 3.79 0.36 2.729 3.47 72.2% 88A 88 2.060 0.33 0.680 0.680 10.00 2.42 1.643 0.012 8 2.000 27 5.99 0.08 1.851 530 88.7% 88 87 0.230 0.56 0.129 1.623 10.36 2.36 3.837 0.012 12 2000. 186 7.51 0.41 5.458 6.95 70.3% 87 86 0.350 0.56 0.196 1.819 10.77 231 4.195 0.012 12 0.500 27 3.47 0.13 2.729 3.47 153.7% 86 71 1.480 0.38 0.562 2.382 10.90 2.29 5.451 0.012 12 1.020 52 4.96 0.17 3.898 4.96 139.8% 85A 85 4.670 0.53 2.475 2.475 10.00 2.42 5.982 0.012 8 2.000 27 5.30 0.08 1.851 5.30 323.1% 85 84 0.220 0.56 0.123 2.598 10.08 2.40 6.246 0.012 12 4.950 165 11.92 0.23 8.587 10.93 72.7% 94A 84 0.760 0.56 0.426 0.426 10.00 2.42 1.029 0.012 8 2.000 27 5.41 0.08 1.851 5.30 55.6% 84 46 0.110 0.56 0,062 3.086 10.32 2.37 7.312 0.012 12 0.500 72 3.47 0.35 2.729 3.47 267.9% 83A 83 0.910 0.50 0.455 0.455 10.00 2.42 1.100 0.012 8 2.000 27 5.52 0.08 1.851 5.30 59.4% 83 82 0.450 0.56 0.252 0.707 10.08 2.40 1.700 0.012 12 5.050 114 8.34 0.23 8.674 11.04 19.6% 82A 82 0.450 0.53 0.239 0.239 10.00 2.42 0.576 0.012 8 2.000 27 4.61 0.10 ➢.851 5.30 31.1% 82 81 0.280 0.56 0.157 1.102 10.31 2.37 2.613 0.012 12 4.520 96 9.09 0.18 8.206 10.45 31.8% 81 80 0.230 0.56 0.129 1.231 10.49 2.35 2-888 0.012 12 2.120 78 7.16 0.18 5.620 7.16 51.4% 80 79 0.240 0.56 0.134 1.366 10.67 2.32 3.169 0.012 12 0.500 27 3.47 0.13 2.729 3.47 116.1 79 78 0.140 0.56 0.078 1.444 10.80 2.30 3.325 0.012 12 0.500 65 3.47 0.31 2.729 3.47 121.8% 78 77 0.170 0.56 0.095 1-539 1111 2.26 3.481 0.012 12 0.500 28 3.47 0.13 2.729 3.47 127.6% 77 76 0.050 0.56 0.028 1.567 11.24 2.24 3.518 0.012 12 2.860 166 8.39 0.33 6.527 8.31 53.9 CON .'ii��:i'�. �:���.� i`i i�.:�':��ii..�'��il��::i:i:i:i:i:i:i:i: LOCATION: - i�i�ii�iEii ... .rV ... ...1J... . .. .O...S.G............ KING COUNTY 24 IIR RAINFALL: 3 95 INCHES JOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 100 YEAR i"a CLtEb76N3'°j 'E''lil7NtN}Bi( E. ii''j' ����"', N AI,.�'•i i � ,.,.:..F ME OF •RAiNFAE.E.: �i77tIBUThlili:i;ipi;ipi;i;i;i;ipi;i'i�i�iP31£ � .:EP[PE... 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FYxlt.: EaNAI!iNS7VG'3!::DIAgNk71iR::;:Sf,OPEEp:E£ENGf$::VELUCIT3`..;.:.:31ME::::::::Q(t'I23.>r)....LF...) .Qf..TYC1E...T iF E[NGEIR}:.::.isi�:�:fCF9}_i�::;..;i..,..�.rt:..:....::..fINC11RS �....., �68A 68 0.070 0.56 0.039 0.039 10.00 2.42 0.095 0.012 8 2.000 27 2.68 0.17 1.851 5.30 5.1% 68 66 3.380 0.28 0,946 5.325 12.35 2.12 11.265 0.012 12 4.420 74 10.33 0.12 8.115 10.33 138.8% 67A 67 0.040 0.56 0.022 0.022 10.00 2.42 0.054 0.012 8 2.000 27 2.02 0.22 1.851 5.30 2.9% 67 66 0.060 0.42 0.025 0.048 10.22 2.38 0.113 0.012 12 0.500 51 1.65 0.51 2.729 3.47 4.2% 66 65 0.000 0.56 0.000 5.373 12.47 2.10 11.297 0.012 12 0.500 85 3.47 0.41 2.729 3.47 413.9% 65A 65 0.420 0.37 0.155 0.155 10.00 2.42 0.376 0.012 8 2.540 48 4.51 0.18 2.086 5.98 18.0% 65 63 0.160 0.53 0.085 5.613 12.88 2.06 11.566 0.012 12 0.500 I10 3.47 0.53 2.729 3.47 423.8"% 64A 64 0.350 0.36 0.126 0.126 10.00 2.42 0.305 0.012 8 2.000 45 3.85 0.20 1.851 5.30 16.4% 64 63 0.170 0.56 0.095 0.221 10.20 2.39 0.528 0.012 12 11.030 30 7.75 0.06 12.819 16.32 4.1% 63 62 0.000 0.56 0.000 5.834 13.41 2.01 11.721 0.012 12 0.500 66 3.47 0.32 2.729 3.47 429.5% 62A 62 0.270 0.56 0.151 0.151 10.00 2.42 0.365 0.012 8 9.500 27 6.99 0.06 4.035 11.56 9.1% 62 61 0.320 0.56 0.179 6.165 13.73 1.98 12.204 0.012 12 0.500 162 3.47 0.78 2.729 3.47 447.2% 61 60 0.390 0.56 0.218 6.383 14.50 1.91 12.206 0.012 12 0.500 70 3.47 0.34 2.729 3.47 447.2% 60A 60 0.650 0.56 0.364 0.364 10.00 2.42 0.880 0.012 8 8.200 27 8.59 0.05 3.749 10.74 23.5% 60 59 0.150 0.56 0.084 6.831 14.84 1.88 12.875 0.012 12 0.550 85 3.64 0.39 2.862 3.64 449.8% 59 58 0.720 0.54 0.389 7.220 15.23 1.95 13.388 0.012 12 0.500 124 3.47 0.59 2.729 3.47 490.6% 58 37 0.000 0.56 0.000 7.220 15.82 1.81 13.069 0.0I2 12 0.540 124 3.61 0.57 2.836 3.61 460.8% r5657 56 1.110 0.34 0.377 0.377 10.00 2.42 0.912 0.012 12 2.200 150 5.07 0.49 5.725 7.29 15.9% 55 0.480 0.56 0.269 0.646 10.49 2.34 1.515 0.012 12 0.500 27 3.54 0.13 2.729 3.47 55.5% V� X '; Va,.Y.,.,.,. 1\4 ...1�. 4� l.r.......•.•.•.•... LOCATION: ICING COUNTY 24-HRRAINFALL: 3.95 INCHES [JOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 100 YEAR ....•...•.•.•........... ..................'tINICOF.,..,RAiNR9.t,..,.TiEIBUTecRk.........•.•.•...•.......,.,.PIP£.,.,..,.,.41PB.....,PIp4...ACT.IIAL....3RaYBL.......pIP':C'ArPi:•.....:S...... LY:::. i:DIPESEGbi6IdT`i i:iEiii(REYEiEi[E iiCbEfiBIC 6N3E'E ::i '5 ' UMFIF'::::�:G4•��:::::I•�`EEIVfii:::::::::�::::::; ;;:1.;:;:: :::;:':;:;: NC.... N TY. ....LULYi'i'i .5 ANNING3:ibIAri 6T6R i . ...................:.................::...•.•.•.•.•................:,:,.,.,.,.,.,.,.,.,..,.,.,...,.,.:.....:..............::..SF,OPE::.f,E..Cf6....4I.UCi'r3f:;:;:;simF:::::::Q4�In.I;):::Y�z3cl::::Qf!�cTYcfEa: ': ACRx.Bj. :(A'C 011m 6.91 IN[EIR}::: fCI3} ,...n.... NCH65 i i i F68 1SEE'' "tINUTE .•i C'R .:i 'Fq'tSEC :: ERCBNT:i:i' ..: ::::.................a.....). f� .�� ..E,....'n.;::Ef'r...). .m......sl ,.,.<...�.,.,..c....1 ..::..1�........s,...... 55 36 0,770 0.56 0.431 1.077 10.62 2.33 2.507 0.012 12 4.980 65 9.38 0.12 8.613 10.97 29.1% 54A 54 0.070 0.56 0.039 0.039 10.00 2.42 0.095 0.012 8 2.000 27 2.68 0.17 1.851 5.30 5.1% 54 53 0.340 1 0.56 0.190 0.230 10.17 2.39 0.549 0.012 12 1.300 130 3.73 0.58 4.401 5.60 12.5% 53 52 0.620 0.56 0.347 0.577 10.75 2.31 1332 0.012 12 0.500 27 3.44 0.13 2.729 3.47 48.9% 52 51 0.060 0.56 0.034 0.610 10.88 2.29 1.399 0.012 12 1.730 86 5.43 0.26 5.077 6.46 27.6% 51 34 0.970 0.56 0.543 1.154 11.14 2.26 2.604 0.012 12 0.500 185 3.96 0.78 2.729 3.47 95.4% 50A 50 1.310 0.55 0.721rl.430 10.00 2.42 1.741 0.012 8 2.000 27 6.05 0.07 1.851 5.30 94.1% 50 49 1.290 0.55 0.710 10.07 2.41 3.440 0.012 12 4.180 82 9.60 0.14 7.891 10.05 43.6% 49A 49 I.870 0.54 1.010 10.00 2.42 2.440 0.012 8 2.000 44 5.30 0.14 1.851 5.30 13l.8% 49 47 0.210 0.56 0.118 2.557 10.22 2.38 6.098 0.012 12 4.090 215 11.03 0.32 7.806 9.94 78.1% 48A 48 4.290 0.54 2.317 2.317 10.00 2.42 5.599 0.012 8 2.000 14 5.30 0.04 1.851 5.30 302.4% 48 47 0.150 0.56 0.084 2.401 10.04 2.41 5.786 0.012 12 1.370 27 5.75 0.08 4.518 5.75 128.1% 47 46 0.780 0.56 0.437 5.395 10.54 2.34 12.612 0.012 12 4.180 294 10.05 0.47 7.891 10.05 159.8% 46 45 i.010 0.56 0.566 9.046 11.01 2.27 20.573 0.012 12 4.650 122 10.60 0.19 9.323 10.60 247.2% 45A 45 0.600 0.56 0.336 0336 10.00 2.42 0.812 0.012 8 2.000 28 5.07 0.09 1.951 5.30 43.9% 45 44 0.250 0.56 0.140 9.522 11.20 2.25 21.421 0.012 12 4.850 78 10.82 0.12 8.500 10.82 252.0% 44 43 0.280 0.56 0.157 9.679 11.32 2.23 21.628 0.012 12 6.090 65 12.13 0.09 9.525 12.13 227.1% 43A 43 0.830 0.56 0.465 0.465 10.00 2.42 1.123 0.012 8 2.000 27 5.58 0.08 1.851 5.30 60.7% 43 42 0.030 0.56 0.017 10.160 11.41 2.22 22.592 0.012 12 4.100 98 9.95 0.16 7.815 9.95 289.1% 42 41 0.350 0.49 0.172 10.332 1 11.58 1 2.20 22.768 0.012 12 4.530 1 77 10.46 0.12 8.215 1 10.46 277.2% TV EYA CE: V,...,.i!i.: !Q .I:.C. 1!1 .: 17 .; lT ::::::::::::::::: LOCATION: KING COUNTY 24-HRRAINFALL: 3.95 INCHES JOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 100 YEAR i iIN63rilii"ii''"'`'i i'`:'i` i'iiiiii'S5i5i:5ii555i p o-:. ;ii; :o"''''ji ii i ii i CR tN,h RUNbFR 1MkOF....;RAISIVA, .TNOUTARY PIPE :>!tkE:.:;::.:RINE aCi[IAL•::;:TRAYBL. .PIPE.GAPAtCITY:SUMRIARY:.:::: i'....EPr]NB :. ..N7.,......,.,.AREA.:._..,CD $FIC16N;:: .:..';:;:;::i;:;ilipip;iSUMCIF.,.;:p fQNC:ii;;i i1NTENSITRi.�;:'s:EG$iYf�E�.' :LkMiti31YC3i::INAMk3kR N V �.�. ..,.: SfAPEf,E,CTH. ELOCiTY 31mE. Q�'ILL.) y :R(aCT:yCFEFfrbf-YE ;.. .:. . ........ {eF9 ErvTj ) :_(F'�S7EC) 41A 41 0.080 0.56 0.045 0.045 10.00 2.42 0.108 0.012 8 2.000 27 2.68 0.17 1.851 5.30 5.8% 41 40 0.780 0.46 0.359 10.735 11.70 2.19 23.500 0.012 12 3.100 120 8.65 0.23 6.796 8.65 345.8% 40A 40 0.430 0.56 0.241 0.241 10.00 2.42 0.582 0.012 8 2.000 27 4.61 0.10 1 1.851 5.30 31.4% 40 39 0.240 0.56 0.134 11.111 11.93 2.16 24.024 0.012 12 1.090 55 5.13 0.18 4.030 5.13 596.2% 39 37 0.000 0.56 0.000 12.991 12.64 2.09 27.087 0.012 18 6.630 185 18.90 0.16 29.301 16.58 92.4% 38 37 0.110 0.56 0.062 0.062 10.00 2.42 0.149 0.012 12 20.000 29 5.05 0.10 17.261 21.98 0.9% 37 36 0.600 0.56 0.336 20.609 12.90 2.07 42.624 0.012 24 5.000 177 19.19 0.15 54.801 17.44 77.8% 36 35 0.090 0.56 0.050 21.737 12.96 2.05 44.620 0.012 24 0.500 159 5.52 0.48 17.329 5.52 257.5% 35A 35 0.290 0.56 0.162 0.162 10.00 2.42 0.392 0.012 8 8.400 27 6.85 0.07 3.794 10.87 10.3% 35 34 0.340 0.56 0.190 22.090 13.44 2.01 44316 0.012 24 5.160 124 19.67 0.11 55.671 17.72 79.6% 34 33 0.190 0.56 0.106 23.350 13.54 2.00 46.615 0.012 24 0.500 78 5.52 0.24 17.329 5.52 269.0% 33A 33 0.200 0.36 0.072 0.072 10.00 2.42 0.174 0.012 8 18.200 27 6.88 0.07 5.585 16.00 3.1% 33 32 0.040 0.56 0.022 23.444 13.78 1.97 46.297 0.012 24 0.500 157 5.52 0.47 17.329 5.52 267.2% 32A 32 0.400 0.23 0.092 0.092 10.00 2.42 0.222 0.012 8 9.200 27 5.74 0.08 3.971 11.38 5.6% 32 15 0.080 0.56 0.045 23.581 14.25 1.93 45.585 0.012 24 12.420 38 27.77 0.02 86.370 27.49 52.8% STORM. /'�]1�Tj� �,7(''� �'+ ...,. .,�V�.\;.Y.E. 11�v :; YSItUDESI N.:.:.:.:.:.:.:.:. LOCATION: KING COUNTY 24-HRRAINFALL: 3.95 INCHES JOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 100 YEAR :':''"'ii ......................... tINICOE.,..,RAINFA£f...:TK�BITARY............:.:...:..........PIPE.;.;..;.;.CIPE.;.;....BIp�. AGT[ERL TRAY6L... PII�I .CAPr�LdTY.SUMMARY. qS➢ NT..... .AREA':E GDBBFIC BN3 ..:.:.:.:.:.:.:.:.:.:.:.:.:.:. ;SUmnF' ..C{1NC,•. tNTENS[TY ;FJ:{I1Y;_;;:7Sii1t?N1iVG'S;; DTAMB7BR: ::SEDPE, .F.EN,GfH :V;~[,OC1Ti' ,,SIMB,:,. .QfD'11LL) ,VZF'i3LL) :� F..: ....... .,.RUM:i;i;ETOi;tii i;i!:;.IA_HT91i!`i;;jisii:iii'!G!';';i;i;i;i::�:�s:fA';Cl:�:::::isifi'�:�:�:.::.VN1!3Y.L.T!'T31�..�:�.f(NGF�R}.:.;:.:.:.:{QF3}.:.:.:..:.:.:.:.!rt�:�:�:�:��:� NCA6g.::PE.� �.:�: £� .�:::.FT/SEE�::� tIN➢3T>: :��:�� � :�:�:: rS G �:�:�:� '�'�'�..... ..... ... .. .. .... ............ ................................f!....). E.i?:C.E?V'I7 ..(F."!7. .f....1. .@.....$1. ....3�'@1......h:'F,£.}.,.,.,.(PERCENT):.:.:. 31A 31 0.600 0.56 0.336 0.336 10.00 2.42 0.812 0.012 8 2.000 27 5.07 0.09 1.951 5.30 43.9% 31 29 0.010 0.56 0.006 0.342 10.09 2.40 0.821 0.012 12 4.300 190 6.42 0.49 8.004 10.19 10.3% 30A 30 0.970 0.56 0.543 0.543 10.00 2.42 1.313 0.012 8 2.000 15 5.73 0.04 1.851 5.30 70.9% 30 29 0.090 0.56 0.050 0.594 10.04 2.41 1.431 0.012 12 0.500 27 3.51 0.13 2.729 3.47 52.4% 29 27 0.230 0.56 0.129 1.064 10.58 2.33 2.481 0.012 12 4.600 198 9.01 0.37 8.278 10.54 30.0% 28A 28 1.020 0.56 0.571 0.571 10.00 2.42 1.380 0.012 8 2.000 15 5.83 0.04 1.851 5.30 74.6% 28 27 0.110 0.56 0.062 0.633 10.04 2.41 1.525 0.012 12 0.500 27 3.54 0.13 2.729 3.47 55.9% 27 25 0.570 0.56 0.319 2.016 10.95 2.28 4.602 0.012 12 4.800 83 10.98 0.13 8.456 10.77 54.4% 26A 26 0.940 0.56 0.526 0.526 i0.00 2.42 1.272 0.012 8 2.000 14 5.73 0.04 1.851 5.30 68.7% 26 25 0,040 0.56 0.022 0.549 10.04 2.41 1.323 0.012 12 0.500 27 3.44 0.13 2.729 3.47 48.5% 25A 25 0.760 0.56 0.426 0.426 10.00 2.42 1.029 0.012 8 2.000 15 5.41 0.05 1,851 5.30 55.6% 25 24 0.040 0.56 0.022 3.013 11.07 2.27 6.828 0.012 12 4.700 218 11.83 0.31 8.368 10.65 81.6% 24A 24 0.750 0.56 0.420 0.420 10.00 2.42 1.015 0.012 8 2.000 13 5.41 0.04 1.851 5.30 54.8% 24 22 0.110 0.56 0.062 3.494 11.38 2.23 7.784 0.012 12 5.600 75 13.02 0.10 9.134 11.63 85.2% 23A 23 0.650 0.56 0.364 0.364 10.00 2.42 0.880 0.012 8 6.600 38 8.09 0.08 3.363 9.63 26.2% 23 22 0.320 0.56 0.179 0.543 10.08 2.40 1.306 0.012 12 0.500 27 3.41 0.13 2.729 3.47 47.9% 22 21 0.160 0.56 0.090 4.127 11.48 2.22 9.145 0.012 12 7.000 165 14.69 0.19 10.212 13.00 89.6% 21A 21 0.440 0.56 0.246 0.246 10.00 2.42 0.595 0.012 8 2.000 27 4.69 0.10 1.851 5.30 32.2% . LOCATION: KIN COUNTY 24-FR RAINFALL: 3.95 INCHESDESIGN u11VEV11 � SY OB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 100 YEAR ' ' MEOR:::RniLv8Ai4 ':CAt6 v.... t/ThRY. ...e]PE... .�.I'IPE... .PIY.@. .�ACT:IFAL:..'tRrt Et. YIP1;CAPACITY S;::;:;:;:1:;:; a :;:!:;a:;:p: :PIP 6N?i.....iAREA i'i i'E i Ct) FF1C BN3!:i i i i i 'E`EE E i'::i$I11N':': 5i`pNCii:' '1NTEN51 A F,;:,.•C•,,,•.,. :74fi1NNi1vG3;;;ptA74iBI�R::.:;SLOPE;:;::)fEiAGTtI::V.Et tlCll!:.:.;. iM1:;:.::;:QplC);::;VULL)::;:Q(tCTISXfFF?�T: .... :?` P:i :"'' '' 'j' ..R:.. RT9 'i: 'i i'!G'5 5555i;i;i;i[i q+!e':;�:i;i:i''A'.':::`: NLR'&5'?"�f NRF R " :Y ................. ...S.....).................... ... f...)......0..�3..YiN......). ....fI...}....i.i;i;i:ECFg)i�55i ii(i;i;i"rt":?i�i:i�:if�NCt.ES)ii i(P£.CBi�c'1)i:i FEE :�i i�i T SBE�i:'"iNINi3T6Sji i"i{i�egp:�:_�'�.F15$C:i�i�i.i.PBtiCENT).i i. 21 19 0.230 0.56 0.129 4.502 11.66 2.19 9.875 0.012 12 0.610 54 3.84 0.23 3.015 3.84 327.6% 20A 20 0.190 0.56 0.106 0.106 10.00 2.42 0.257 0.012 8 2.000 27 3.53 0.13 1.851 5.30 13.9% 20 19 0.050 0.56 0.028 0.134 10.13 2.40 0.322 0.012 12 3.100 200 4.11 0.81 6.796 8.65 4.7% 19 18 0A80 0.56 0.269 4.906 11.90 2.17 10.626 0.012 18 0.940 130 7.12 0.30 11.033 6.24 96.3% 18A 18 1.840 0.42 0.773 0.773 10.00 2.42 1.868 0.012 8 2.000 27 6.05 0.07 1.851 5.30 100.9% 18 17 0.430 0.56 0.241 5.919 12.20 2.13 12.619 0.012 18 0.500 100 4.55 0.37 8.047 4.55 156.8% 17 16 0.600 0.56 0.336 6.255 12.57 2.09 13.089 0.012 18 0.500 1 135 4.55 0.49 9.047 4.55 162.7% 16 15 0.020 0.56 0.011 6.266 13.06 2.04 12.798 0.012 18 0.500 60 4.55 0.22 8.047 4.55 159.0% 15 14 0.160 0.56 0.090 29.937 14.28 1.93 57.814 0.012 30 0.500 140 6.40 0.36 31.420 6.40 184.0% 14 13 0.460 0.56 0.258 30.194 14.64 1.90 57.392 0.012 30 0.500 54 6.40 0.14 31.420 6.40 182.7% 13 12 0.410 0.56 0.230 30.424 14.78 1.89 57.482 0.012 30 0.500 42 6.40 0.11 31.420 6.40 182.9 12A 12 0.390 0.56 0.218 0.218 10.00 2.42 0.528 0.012 8 8.700 27 7.36 0.06 3.861 11.06 13.7% 12 11 0.240 0.56 0.134 30.777 14.89 1.88 57.879 0.012 30 0.500 149 6.40 0.39 31.420 6.40 184.2% 11 3 0.390 0.56 0.218 30.995 15.28 1.85 57.353 0.012 30 0.800 73 9.10 0.15 39.744 8.10 144.3 10 9 1.370 0.25 0.343 0.343 10.00 2.42 0.828 0.012 12 2.200 55 5.07 0.18 5.725 7.29 14.5% 9 8 0.210 0.56 0.119 0.460 10.18 2.39 1.099 0.012 12 3.000 138 6.17 0.37 6.685 8.51 16.4% 8A 8 0.330 0.56 0.185 0.185 10.00 2.42 0.447 0.012 8 2.000 27 4.35 0.10 1.851 5.30 24.1% 8 7 0.450 0.56 0.252 0.897 10.55 2.34 2.095 0.012 12 15.270 44 12.77 0.06 15.083 19.20 13.9% 7A 7 0.300 0.56 0.168 0.409 11.19 2.25 0.920 0.012 12 IT100 23 10.26 0.04 15.961 2032 5.8% ........................... ......... 1I �1,.V,.EreSIE7 ._.......,.,.,... LOCATION: KING COUNTY 24-IIR RAINFALL: 3.95 INCHES [JOB NAME: MAPLEWOOD PARCEL JOB NUMBER: 94168 PREPARED BY: GRB DESIGN STORM: 100 YEAR t" 'F 6 R NOiF.... ...31MBDF. .RA4NlF it P :::::.p ...E.•... t. �:�' x11?c..e�..:::::::..P...P�CAt'ACI.T?':SUMM..RY:;:: S ::`L._....�.�FYi;iiiii�i iE i°-':'�"�:�'�'�ii�'�'�'•'•'"'i .::::::::°i ..............................:.:.......................NF.i;p i:`ipi:i;ipiiiii.i4UMOF::.f;E;�EONCEpE;.,,..MTBNSl,.,.,,.,.,.,FLOH`.,...,..,3�f.4NN,11+(f.,.5,..DTA3�IET>:R, ,#.�N4"771.:YBUO�I:fX��.�.�.TIMFi�.�.��.�..�IILL.�..5'(#'ULy��... ACTY�2fF�J};.�•}. is::: .::::::::::'::i:''.:: ::::i ::: FR(?M:' "t6 [ACIti S) II.:.:.::.:::. h' � ';:: ::fA G�:..( lNflTS) E� MN).. ;. (� � n;: (lNC11�S7:::(P3�IRLIN17 (Mir[iTt SJ (EFS).. (ItSBe3 7 6 0.020 0.56 0.011 1.317 11.23 2.25 2.959 0.012 12 0.500 78 3.47 0.37 2.729 3.47 108.4% 6A 6 0.170 0.56 0.095 0.095 10.00 2.42 0.230 0.012 .8 17.500 27 7.45 0.06 5.476 15.69 4.2% 6 5 0.390 0.56 0.218 1.631 11.60 2.20 3.588 0.012 12 0.500 200 3.47 1 0.96 2.729 3.47 131.5 5A 5 0.540 0.56 0.302 0.302 10.00 2.42 0.731 0.012 8 8.800 27 8.40 0.05 3.883 11.13 18.8% 5 4 0.560 0.56 0.314 2.247 12.56 2.09 4.703 0.012 12 0.500 200 3.47 0.96 2.729 3.47 172.3 4A 4 0.550 0.56 0.308 0.308 10.00 2.42 0.744 0.012 8 2.000 27 4.99 0.09 1.851 5.30 40.2% 4 3 0.570 0.56 0.319 2.874 13.52 2.00 5.743 0.012 12 0.500 132 3.47 0.63 2.729 3.47 210.4% 3A 3 0.540 0.56 0.302 0.302 10.00 2.42 0.731 0.012 8 2.000 27 4.93 0.09 1.851 5.30 39.5% 3 2 0.520 0.56 0.291 34.462 15A3 1.84 63.377 0.012 30 0.900 132 8.59 0.26 42.155 8.59 150.3% 2 2A 0.000 0.56 0.000 34.462 15.69 1.82 62.722 0,012 30 11.800 1 63 29.23 0.04 152.640 31.10 41.1 OB NAME: MAPLEWOOD PARCEL PREPARED BY: G.Brooks ,JOB NUMBER: 94168 DESIGN STORM: 25 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. n ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB CFS FEE (IN)_ VALUE EE (FEE SQ FT/SEC (FEET) FEET FEE (FEET) FEE (FEET) FEE FEE (FEET) (FEET) FEET FEE RIM EL 2A 2 30.29 63 36 0.012 391.00 398.43 7.07 4.29 0.29 398.39 0.11 401.43 0.14 0.29 401.86 401.43 0.29 0.23 0.00 401.81 403.50 1.69 2 3 30.29 132 36 0.012 398.43 399.62 7.07 4.29 0.29 401.81 0.23 402.62 0.14 0.29 403.05 402.62 0.21 0.38 0.16 403.38 405.20 1.82 0.00 3 3A 0.62 27 12 0.012 401.62 402.16 0.79 0.79 0.01 403.38 0.01 403.38 0.00 0.01 403.40 403.16 0.00 0.00 0.00 403.40 465.20 1.80 0.00 3 4 2.87 132 12 0.012 401.62 402.28 0.79 3.65 0.21 403.38 0.72 404.10 0.10 0.21 404.41 403.48 0.21 0.01 0.03 404.25 406.27 2.02 0.00 4 4A 0.63 27 12 0.012 402.28 402.82 0.79 0.80 0.01 404.25 0.01 404.26 0.01 0.01 404.27 403.82 0.00 0.00 0.00 404.27 406.27 2.00 0.00 4 5 2.87 200 12 0.012 402.28 403.28 0.79 3.65 0.21 404.25 1.09 405.34 0.10 0.21 405.65 404.48 0.21 0.00 0.03 405.48 408.67 3.19 0.00 5 5A 0.62 27 12 0.012 403.28 405.66 0.79 0.79 0.01 405.48 0.01 406.66 0.00 0.01 406.67 406.66 0.00 0.00 0.00 406.67 408.67 2.00 0.00 5 6 2.87 200 12 0.012 403.28 404.28 0.79 3.65 0.21 405.48 1.09 406.58 0.10 0.21 406.89 405.28 0.16 0.02 0.01 406.76 412.01 5.25 0.00 6 6A 0.20 27 12 0.012 404.28 409.01 0.79 0.25 0.00 406.76 0.00 410.01 0.00 0.00 410.01 410.01 0.00 0.00 0.00 410.01 412.01 2.00 0.00 6 7 2.51 78 12 0.012 404.28 404.67 0.79 3.20 0.16 406.76 0.33 407.09 0.08 0.16 407.32 405.67 0.08 0.06 0.05 407.35 413.97 6.62 0.00 7 7A 0.78 58 12 0.012 404.67 407.11 0.79 0.99 0.02 407.35 0.02 409.11 0.01 0.02 408.13 408.11 0.01 1 0.00 0.00 408.13 413.50 5.37 0.00 7 8 1.78 44 12 0.012 407.11 411.39 0.79 2.27 0.08 407.35 0.09 412.39 0.04 0.08 412.51 412.39 0.02 0.02 0.02 412.53 414.96 2.43 0.00 8 8A 0.38 27 12 0.012 411.39 411.93 0.79 0.48 0.00 412.53 0.00 412.93 0.00 0.00 412.94 412.93 0.00 0.00 0.00 412.94 414.96 2.02 0.00 8 9 0.94 138 12 0.012 411.39 415.53 0.79 1.20 0.02 412.53 0.08 416.53 0.01 0.02 416.56 416.53 0.01 0.00 0.00 416.55 418.56 2.01 9 10 0.71 55 12 0.012 415.53 416.74 0.79 0.90 0.01 416.55 0.02 417.74 0.01 0.01 417.76 417.74 0.00 0.00 0.00 417.76 419.74 1.98 0.00 3 11 30.29 73 36 0.012 399.62 400.20 7.07 4.29 0.29 403.38 0.13 403.50 0.14 0.29 403.93 403.20 0.29 0.03 0.00 403.67 405.60 1.93 11 12 30.29 149 36 0.012 400.20 400.94 7.07 4.29 0.29 403.67 0.26 403.94 0.14 0.29 404.37 403.94 0.29 0.03 0.00 404.11 408.29 4.18 0.00 12 12A 0.45 27 12 0.012 402.94 405.29 0.79 0.57 0.01 404.11 0.00 406.29 0.00 0.01 406.30 406.29 0.00 0.00 0.00 406.30 408.29 1.99 0.00 12 13 30.29 42 36 0.012 400.94 401.15 7.07 4.29 0.29 404.11 0.07 404.19 0.14 0.29 404.62 404.15 0.29 0.06 0.00 404.39 409.01 4.62 13 14 30.29 54 36 0.012 401.15 401.42 7.07 4.29 0.29 404.39 0.09 404.49 0.14 0.29 404.92 404.42 0.29 0.08 0.00 404.71 409.95 5.24 14 15 30.29 140 36 0.012 401.42 402.12 7.07 4.29 0.29 404.71 0.24 405.12 0.14 0.29 405.55 405.12 0.94 0.09 0.05 404.75 412.65 7.90 0.00 15 16 6.22 60 18 0.012 403.62 403.92 1.77 3.52 0.19 404.75 0.18 405.42 0.10 0.19 405.71 405.42 0.19 0.02 0.00 405.54 412.63 7.09 16 17 6.22 135 18 0.012 403.92 404.59 1.77 3.52 0.19 405.54 0.40 406.09 0.10 0.19 406.38 406.09 0.19 0.04 0.00 406.22 409.93 3.71 17 18 6.22 100 18 0.012 404.59 405.09 1.77 3.52 0.19 406.22 0.30 406.59 0.10 0.19 406.88 406.59 0.19 0.02 0.04 406.74 409.13 2.39 0.00 18 18A 1.59 27 12 0.012 405.59 406.13 0.79 2.02 0.06 406.74 0.05 407.13 0.03 0.06 407.23 407.13 0.00 0.00 0.00 407.23 409.13 1.90 0.00 18 19 6.22 130 18 0.012 405.09 406.31 1.77 3.52 0.19 406.74 0.39 407.81 0.10 0.19 408.10 407.81 0.50 0.25 0.01 407.87 410.57 2.70 0.00 19 20 0.27 200 12 0.O12 406.81 413.01 0.79 0.34 0.00 407.87 0.01 414.01 0.00 0.00 414.01 414.01 0.00 0.00 0.00 414.01 416.55 2.54 20 20A 0.22 27 12 0.012 413.01 413.55 0.79 0.28 0.00 414.01 0.00 414.55 0.00 0.00 414.55 414.55 0.00 0.00 0.00 414.55 416.55 2.00 0.00 19 21 4.44 54 12 0.012 406.81 407.14 0.79 5.65 0.50 407.87 0.71 408.57 0.25 0.50 409.32 409.08 0.20 0.02 0.05 409.18 410.70 1.52 0.00 21 21A 0.51 27 12 0.012 407.14 407.68 0.79 0.65 0.01 409.18 0.00 409.19 0.00 0.01 409.20 408.68 0.00 0.00 0.00 409.20 410.70 1.50 0.00 ... JOB NAME: MAPLEWOOD PARCEL PREPARED BY: G.Brooks JOB NUMBER: 94168 DESIGN STORM: 25 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. n ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB CFS FEE VALUE FEE E SQ FT/SEC FEE FEE FEE (FEET) (FEET) FEE (FEET) FEE FEE (FEET) FEE FEE RIM EL 21 22 4.44 165 15 0.012 407.14 418.69 1.23 3.62 0.20 409.18 0.66 419.94 0.10 0.20 420.25 419.94 0.50 0.02 0.04 419.81 421.87 2.06 0.00 22 23 1.11 27 12 0.012 418.69 418.83 0.79 1.41 0.03 419.81 0.02 419.83 0.02 0.03 419.88 419.83 0.01 0.02 0.00 419.89 421.87 1.98 23 23A 0.75 38 12 0.012 418.83 420.34 0.79 0.95 0.01 419.89 0.01 421.34 0.01 0.01 421.36 421.34 0.00 0.00 0.00 421.36 424.37 3.01 0.00 22 24 4.44 75 12 0.012 418.69 422.89 0.79 5.65 0.50 419.81 0.98 423.89 0.25 0.50 424.64 424.80 0.50 0.03 0.07 424.42 425.94 1.52 0.00 24 24A 0.87 13 12 0.012 422.89 423.15 0.79 1.11 0.02 424.42 0.01 424.42 0.01 0.02 424.45 424.15 0.00 0.00 0.00 424.45 426.74 2.29 0.00 24 25 4.44 218 12 0.012 422.89 433.14 0.79 5.65 0.50 424.42 2.86 434.14 0.25 0.50 434.89 434.77 0.38 0.05 0.11 434.66 436.27 1.61 0.00 25 25A 0.89 15 12 0.012 433.14 433.44 0.79 1.12 0.02 434.66 0.01 434.67 0.01 0.02 434.69 434.44 0.00 0.00 0.00 434.69 437.04 2.35 0.00 25 26 1.13 27 12 0.012 433.14 433.27 0.79 1.44 0.03 434.66 0.02 434.68 0.02 0.03 434.73 434.27 0.03 0.00 0.00 434.70 436.27 1.57 26 26A 1.08 14 12 0.012 433.27 433.55 0.79 1.38 0.03 434.70 0.01 434.71 0.01 0.03 434.76 434.55 0.00 0.00 0.00 434.76 436.57 1.81 0.00 25 27 3.90 83 12 0.012 433.14 437.12 0.79 4.97 0.38 434.66 0.84 438.12 0.19 0.38 438.70 438.12 0.11 0.04 0.15 438.77 440.31 1.54 0.00 27 28 1.30 27 12 0.012 437.12 437.26 0.79 1.66 0.04 438.77 0.03 438.80 0.02 0.04 438.87 438.26 0.01 0.02 0.00 438.88 440.31 1.43 28 28A 0.52 15 12 0.012 43726 437.56 0.79 0.66 0.01 438.88 0.00 438.88 0.00 0.01 438.89 438.56 0.00 0.00 0.00 438.89 441.08 2.19 0.00 27 29 2.11 198 12 0.012 437.12 446.23 0.79 2.69 0.11 438.77 0.59 447.23 0.06 0.11 447.40 447.23 0.01 0.00 0.09 447.47 449.76 2.29 0.00 29 30 1.22 27 12 0.012 446.23 446.37 0.79 1.55 0.04 447.47 0.03 447.50 0.02 0.04 447.55 447.37 0.03 0.00 0.00 447.53 449.76 2.23 30 30A 1.12 15 12 0.012 446.37 446.67 0.79 1.43 0.03 447.53 0.01 447.67 0.02 0.03 447.72 447.67 0.00 0.00 0.00 447.72 450.25 2.53 0,00 29 31 0.70 190 12 0.012 446.23 454.40 0.79 0.99 0.01 447.47 0.06 455.40 0.01 0.01 455.42 455.40 0.01 0.02 0.00 455.43 457.94 2.51 31 31A 0.52 27 12 0.012 454.40 454.94 0.79 0.66 0.01 455.43 0.00 455.94 0.00 0.01 455.95 455.94 0.00 0.00 0.00 455.95 457.94 1.99 0.00 15 32 24.43 38 24 0.012 403.12 407.84 3.14 7.78 0.94 404.75 0.37 409.84 0.47 0.94 411.25 411.46 0.94 0.38 0.01 410.90 414.33 3.43 0.00 32 32A 0.19 27 12 0.012 408.84 411.32 0.79 0.24 0.00 410.90 0.00 412.32 0.00 0.00 412.32 412.32 0.00 0.00 0.00 412.32 414.33 2.01 0.00 32 33 24.43 157 24 0.012 407.84 408.62 3.14 7.78 0.94 410.90 1.55 412.45 0.47 0.94 413.86 412.04 0.81 0.10 0.01 413.16 417.54 4.38 0.00 33 33A 0.15 27 12 0.012 409.62 414.53 0.79 0.19 0.00 413.16 0.00 415.53 0.00 0.00 415.53 415.53 0.00 0.00 0.00 415.53 417.54 2.01 0.00 33 34 22.73 78 24 0.012 408.62 409.01 3.14 7.24 0.81 413.16 0.67 413.82 0.41 0.81 415.04 412.43 0.81 0.07 0.03 414.33 419.12 4.79 0.00 34 35 22.73 124 24 0.012 409.01 415.41 3.14 7.24 0.81 414.33 1.06 417.41 0.41 0.81 418.63 418.78 0.81 0.00 0.01 417.98 421.701 3.72 0.00 35 35A 0.33 27 12 0.012 416.41 418.68 0.79 0.42 0.00 417.98 0.00 419.68 0.00 0.00 419.68 419.68 0.00 0.00 0.00 419.68 421.70 2.02 0.00 35 36 22.73 159 24 0.012 415.41 416.20 3.14 7.24 0.81 417.98 1.36 419.34 0.41 0.81 420.56 419.23 0.66 0.03 0.04 419.96 42517 5.21 0.00 36 37 20.48 177 24 0.012 416.20 417.08 3.14 6.52 0.66 419.96 1.23 421.19 0.33 0.66 422.18 419.08 1.42 0.05 0.30 421.11 429.11 8.00 0.00 37 38 0.13 29 12 0.012 418.08 423.88 0.79 0.17 0.00 421.11 0.00 424.88 0.00 0.00 424.89 424.88 0.00 0.00 0.00 424.88 429.23 4.35 0.00 37 39 1 11.73 185 15 0.012 1 417.83 430.10 1.23 9.56 1.42 1 421.11 5.15 431.35 0.71 1.42 433.48 433.45 1.00 0.00 0.00 432.48 433.40 0.92 0.00 39 40 1 9.84 55 15 0.012 1 430.10 430.70 1.23 8.02 1.00 1 432.48 1.08 433.56 0.50 1.00 435.06 434.09 1.00 0.03 0.04 434.13 434.59 0.46 JOB NAME: MAPLEWOOD PARCEL PREPARED BY: G.Brooks JOB NUMBER: 94168 DESIGN STORM: 25 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. n ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB CFS E VALUE FEE (FEET) SQ (FT/SEC) (FEET) FEE FEE FEE FEET FEET) FEE (FEET) E FEE (FEET) FEE RIM EL 0.00 40 40A 0.50 27 12 0.012 430.95 431.49 0.79 0.64 0.01 434.13 0.00 434.13 0.00 0.01 434.14 432.49 0.00 0.00 0.00 434.14 434.59 0.45 0.00 40 41 9,84 120 15 0.012 430.70 434.42 1.23 8.02 1.00 434.13 2.35 436.48 0.50 1.00 437.98 437.80 1.00 0.19 0.01 437.18 438.21 1.03 0.00 41 41A 0.09 27 12 0.012 434.67 435.21 0.79 0.11 0.00 437.18 0.00 437.18 0.00 0.00 437.18 436.21 0.00 0.00 0.00 437.18 438.21 1.03 0.00 41 42 9.84 77 15 0.012 434.42 437.91 1.23 8.02 1.00 437.18 1.51 439.16 0.50 1.00 440.66 441.28 1.00 0.28 0.00 440.56 441.21 0.65 42 43 9.84 98 15 0.012 43T91 441.93 1.23 8.02 1.00 440.56 1.92 443.18 0.50 1.00 444.68 445.30 1.00 0.10 0.04 444.44 445.72 1.28 0.00 43 43A 0.52 27 12 0.012 442.18 442.72 0.79 0.66 0.01 444.44 0.00 444.45 0.00 0.01 444.46 443.72 0.00 0.00 0.00 444.46 445.72 1.26 0.00 43 44 9.84 65 15 0.012 441.93 445.89 1.23 8.02 1.00 444.44 1.27 447.14 0.50 1.00 449.64 449.25 1.00 0.22 0.00 448.47 449.16 0.69 44 45 9.84 78 15 0.012 445.89 449.67 1.23 8.02 1.00 448.47 1.53 450.92 0.50 1.00 452.42 453.04 1.00 0.20 0.04 452.28 453.21 0.93 0.00 45 45A 0.52 28 12 0.012 449.92 450.48 0.79 0.66 0.01 452.28 0.01 452.29 0.00 0.01 452.30 451.48 0.00 0.00 0.00 452.30 453.48 1.18 0.00 45 46 9.84 122 15 0.012 449.67 455.34 1.23 8.02 1.00 452.28 2.39 456.59 0.50 1.00 458.09 458.20 0.80 0.02 0.00 457.42 458.77 1.35 0.00 46 47 8.80 284 15 0.012 455.34 467.21 1.23 7.17 0.80 457.42 4.45 468.46 0.40 0.80 469.66 468.46 0.05 0.00 0.81 470.42 470.70 0.28 0.00 47 48 4.93 27 15 0.012 467.45 467.82 1.23 4.02 0.25 470.42 0.13 470.55 0.13 0.25 470.93 469.07 0.23 0.02 0.00 470.71 471.20 0.49 48 48A 4.77 14 15 0.012 467.82 468.10 1.23 3.89 0.23 470.71 0.06 470.77 0.12 0.23 471.13 469.35 0.00 0.00 0.00 471.13 471.60 0.47 0.00 47 49 1.47 215 12 0.012 467.45 476.25 0.79 1.87 0.05 470.42 0.31 477.25 0.03 0.05 477.33 477.25 0.05 0.00 0.03 477.31 479.73 2.42 0.00 49 49A 1.47 44 12 0.012 476.25 477.13 0.79 1.87 0.05 477.31 0.06 478.13 0.03 0.05 478.21 478.13 0.00 0.00 0.00 478.21 480.13 1.92 0.00 49 50 1.47 82 12 0.012 476.25 479.68 0.79 1.87 0.05 477.31 0.12 480.68 0.03 0.05 480.76 480.68 0.05 0.07 0.00 480.78 483.22 2.44 50 50A 1.47 27 12 0.012 479.68 480.22 0.79 1.87 0.05 480.78 0.04 481.22 0.03 0.05 481.30 481.22 0.00 0.00 0.00 481.30 483.22 1.92 0.00 34 51 1.16 185 12 0.012 410.01 410.96 0.79 1.48 0.03 414.33 0.17 414.50 0.02 0.03 414.55 411.96 0.03 0.04 0.00 414.56 415.00 0.44 51 52 1.16 80 12 0.012 410.96 412.24 0.79 1.48 0.03 414.56 0.07 414.63 0.02 0.03 414.68 413.24 0.03 0.01 0.00 414.66 415.59 0.93 52 53 1.13 27 12 0.012 412.24 412.56 0.79 1.44 0.03 414.66 0.02 414.68 0.02 0.03 414.73 413.56 0.01 0.04 0.00 414.76 415.59 0.83 53 54 0.47 130 12 0.012 412.56 414.25 0.79 0.60 0.01 414.76 0.02 415.25 0.00 0.01 415.26 415.25 0.00 0.01 0.00 415.27 417.81 2.54 54 54A 0.08 27 12 0.012 414.25 414.79 0.79 0.10 0.00 415.27 0.00 415.79 0.00 0.00 415.79 415.79 0.00 0.00 0.00 415.79 417.81 2.02 0.00 36 55 1.09 65 12 0.012 417.20 420.44 0.79 1.39 0.03 419.96 0.05 421.44 0.01 0.03 421.48 421.44 0.03 0.04 0.00 421.49 424.07 2.58 55 56 1.09 27 12 0.012 420.44 420.57 0.79 1.39 0.03 421.49 0.02 421.57 0.01 0.03 421.61 421.57 0.02 0.04 0.00 421.64 424.07 2.43 56 57 0.78 150 12 0.012 420.57 423.87 0.79 0.99 0.02 421.64 0.06 424.87 0.01 0.02 424.89 424.87 0.00 0.00 0.00 424.89 428.50 3.61 0.00 37 58 8.75 124 18 0.012 417.58 418.25 1.77 4.95 0.38 421.11 0.73 421.84 0.19 0.38 422.41 420.23 0.38 0.25 0.00 422.28 430.00 7.72 58 59 8.75 124 18 0.012 418.25 418.87 1.77 4.95 0.38 422.28 0.73 423.01 0.19 0.38 423.58 420.85 0.38 0.50 0.00 423.70 424.00 0.30 59 60 8.75 85 18 0.012 418.87 419.34 1.77 4.95 0.38 423.70 0.50 424.20 0.19 0.38 424.77 421.32 0.38 0.14 0.03 424.56 425.06 0.50 0.00 60 60A 0.75 27 12 0.012 419.84 422.05 0.79 0.95 0.01 424.56 0.01 424.57 0.01 0.01 424.59 423.05 0.00 0.00 0.00 424.59 425.06 0.47 0.00 60 61 8.75 70 18 0.012 419.34 419.69 1.77 4.95 0.38 424.56 0.41 424.97 0.19 0.38 425.54 421.67 0.38 0.03 0.00 425.19 426.54 1.35 61 62 8.75 162 18 0.012 419.69 420.50 1.77 4.95 0.38 425.19 0.95 426.14 0.19 0.38 426.71 422.00 0.21 0.05 0.02 426.57 426.57 0.00 0.00 62 62A 0.31 27 12 0.012 421.00 423.57 0.79 0.39 0.00 426.57 0.00 426.57 0.00 0.00 426.57 424.57 0.00 0.00 0.00 426.57 426.57 0.00 0.00 ::. . OB NAME: MAPLEWOOD PARCEL PREPARED BY: G.Brooks OB NUMBER: 94168 DESIGN STORM: 25 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. n ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB CFS (FEET) VALUE EE (FEET) SQ FT/SEC FEE FEE FEE (FEET) FEE FEE (FEET) FEE (FEET) (FEET) FEE FEE RIM EL 62 63 6.45 66 18 0.012 420.50 420.83 1.77 3.65 0.21 426.57 0.21 426.78 0.10 0.21 427.09 422.33 0.21 0.27 0.01 427.17 427.86 0.69 0.00 63 64 0.45 30 12 0.012 421.33 424.64 0.79 0.57 0.01 427.17 0.00 427.17 0.00 0.01 427.18 425.64 0.00 0.01 0.00 427.18 428.54 1.36 64 64A 0.26 45 12 0.012 424.64 425.54 0.79 0.33 0.00 427.18 0.00 427.19 0.00 0.00 427.19 426.54 0.00 0.00 0.00 427.19 428.54 1.35 0.00 63 65 6.45 110 18 0.012 420.83 421.38 1.77 3.65 0.21 427.17 0.35 427.52 0.10 0.21 427.83 422.88 0.21 0.00 0.01 427.63 426.10 -1.53 0.00 65 65A 0.32 48 12 0.012 421.88 423.10 0.79 0.41 0.00 427.63 0.00 427.63 0.00 0.00 427.64 424.10 0.00 0.00 0.00 427.64 426.10 -1.54 0.00 65 66 6.45 109 18 0.012 421.38 421.93 1.77 3.65 0.21 427.63 0.35 427.98 0.10 0.21 428.29 423.43 0.43 0.27 0.00 428.13 42T23 -0.90 0.00 66 67 0.10 51 15 0.012 422.18 422.43 1.23 0.08 0.00 428.13 0.00 429.13 0.00 0.00 428.13 423.68 0.00 0.00 0.00 428.13 426.09 -2.04 67 67A 0.05 27 12 0.012 422.68 423.22 0.79 0.06 0.00 428.13 0.00 428.13 0.00 0.00 428.13 424.22 0.00 0.00 0.00 428.13 426.09 -2.04 0.00 66 68 6.45 74 15 0.012 422.18 425.11 1.23 5.26 0.43 428.13 0.62 428.76 0.21 0.43 429.40 427.02 0.43 0.57 0.00 429.54 428.88 -0.66 0.00 68 68A 0.08 27 12 0.012 425.44 425.67 0.79 0.10 0.00 429.54 0.00 429.54 0.00 0.00 429.54 426.67 0.00 0.00 0.00 429.54 428.88 -0.66 0.00 68 69 6.45 198 15 0.012 425.11 429.49 1.23 5.26 0.43 429.54 1.67 431.21 0.21 0.43 431.85 431.41 0.43 0.00 0.00 431.43 433.28 1.85 0.00 69 69A 0.08 27 12 0.012 429.49 430.28 0.79 0.10 0.00 431.43 0.00 431.43 0.00 0.00 431.43 431.28 0.00 0.00 0.00 431.43 433.28 1.85 0.00 69 70 6.45 200 15 0.012 429.49 433.15 1.23 5.26 0.43 431.43 1.68 434.40 0.21 0.43 435.04 434.40 0.21 0.00 0.01 434.84 437.12 2.28 0.00 70 70A 0.07 27 12 0.012 431.40 433.94 0.79 0.09 0.00 434.84 0.00 434.94 0.00 0.00 434.94 434.94 0.00 0.00 0.00 434.94 437.12 2.18 0.00 70 71 4.55 109 15 0.012 433.15 434.38 1.23 3.71 0.21 434.84 0.46 435.63 0.11 0.21 435.95 435.63 0.52 0.28 0.06 435.77 439.15 3.38 0.00 71 71A 0.07 150 12 0.012 434.63 436.73 0.79 0.09 0.00 435.77 0.00 437.73 0.00 0.00 437.73 437.73 0.00 0.00 0.00 437.73 439.15 1.42 0.00 71A 72 1.95 172 12 0.012 436.73 441.67 0.79 2.48 0.10 437.73 1 0.43 442.67 0.05 0.10 442.81 442.67 0.00 0.00 0.05 442.87 442.73 -0.14 0.00 72 72A 0.08 27 12 0.012 441.67 442.21 0.79 0.10 0.00 442.87 0.00 443.21 0.00 0.00 443.21 443.21 0.00 0.00 0.00 443.21 442.73 -0.48 0.00 0.00 39 74 1.89 55 12 0.012 430.35 430.79 0.79 2.41 0.09 432.48 0.13 432.61 0.05 0.09 432.75 431.79 0.09 0.00 0.01 432.67 434.48 1.81 0.00 74 74A 0.15 32 12 0.012 430.79 431.43 0.79 0.19 0.00 432.67 0.00 432.67 0.00 0.00 432.67 432.43 0.00 0.00 0.00 432.67 434.23 1.56 0.00 74 75 1.89 170 12 0.012 430.79 432.15 0.79 2.41 0.09 432.67 0.40 433.15 0.05 0.09 433.29 433.15 0.09 0.01 0.00 433.21 439.38 6.17 0.00 75 75A 0.10 27 12 0.012 432.15 436.04 0.79 0.13 0.00 433.21 0.00 437.04 0.00 0.00 437.04 437.04 0.00 0.00 0.00 437.04 439.38 2.34 0.00 75 76 1.89 152 12 0.012 432.15 442.86 0.79 2.41 0.09 433.21 0.36 443.86 0.05 0.09 444.00 443.86 0.09 0.01 0.00 443.91 446.40 2.49 0.00 76 76A 0.08 27 12 0.012 442.86 443.40 0.79 0.10 0.00 443.91 0.00 444.40 0.00 0.00 444.40 444.40 0.00 0.00 0.00 444.40 446.40 2.00 0.00 76 77 1.89 166 12 0.012 442.86 447.61 0.79 2.41 0.09 443.91 0.39 448.61 0.05 0.09 448.75 448.61 0.09 0.08 0.00 448.73 453.99 5.26 77 78 1.89 28 12 0.012 447.61 447.75 0.79 2.41 0.09 448.73 0.07 448.80 0.05 0.09 448.93 448.75 0.09 0.03 0.00 448.87 454.37 5.50 78 79 1.89 65 12 0.012 447.75 448.07 0.79 1 2.41 1 0.09 1 448.87 1 0.15 449.07 0.05 0.09 449.21 449.07 0.09 0.05 0.00 449.16 4:5 2.09 JOB NAME: MAPLEWOOD PARCEL PREPARED BY: G.Brooks JOB NUMBER: 94168 DESIGN STORM: 25 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAH.WATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY READ HEAD HEADWATER FROM TO FLOW LENGTH DIA. n ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB CFS E VALUE FEE (FEET) SQ /SEC FEE (FEET) (FEET) EE E (FEET) (FEET) (FEET) (FEET) FEE (FEET) FEE RIM EL 79 80 1.89 27 12 0.012 448.07 448.21 0.79 2.41 0.09 449.16 0.06 449.23 0.05 0.09 449.36 449.21 1 0.09 0.12 0.00 449.39 451.25 1.86 80 81 1.89 78 12 0.012 448.21 449.86 0.79 2.41 0.09 449.39 0.19 450.86 0.05 0.09 451.00 450.86 0.09 0.01 0.00 450.91 452.94 2.03 81 82 1.89 96 12 0.012 449.86 454.20 0.79 2.41 0.09 450.91 0.23 455.20 0.05 0.09 455.34 455.20 0.05 0.01 0.02 455.32 457.74 2.42 0.00 82 82A 0.49 27 12 0.012 454.20 454.74 0.79 0.62 0.01 455.32 0.00 455.74 0.00 0.01 455.75 455.74 0.00 0.00 0.00 455.75 457.74 1.99 0.00 82 83 1_45 114 1 12 0.012 454.20 459.96 0.79 1.85 0.05 455.32 0.16 460.96 0.03 0.05 461.04 460.96 0.02 0.06 0.00 461.07 463.50 2.43 83 83A 0.94 27 12 0.012 459.96 460.50 0.79 1.20 0.02 461.07 0.02 461.50 0.01 0.02 461.53 461.50 0.00 0.00 0.00 461.53 463.50 1.97 0.00 46 84 1.04 72 12 0.012 455.59 455.95 0.79 1.32 0.03 457.42 0.05 457.47 0.01 0.03 457.51 456.95 0.03 0.00 0.01 457.50 459.49 1.99 0.00 84 84A 0.88 27 12 0.012 455.95 456.49 0.79 1.12 0.02 457.50 0.01 457.51 0.01 0.02 457.54 457.49 0.00 0.00 0.00 457.54 459.49 1.95 0.00 84 85 1.04 165 12 0.012 455.95 464.11 0.79 1.32 0.03 457.50 0.12 465.11 0.01 0.03 465.15 465.11 0.03 0.03 0.00 465.16 467.65 2.49 85 85A 1.04 27 12 0.012 464.11 464.65 0.79 1.32 0.03 465.16 0.02 465.65 0.01 0.03 465.69 465.65 0.00 0.00 0.00 465.69 467.65 1.96 0.00 71 87 4.55 68 12 0.012 434.63 434.97 0.79 5.79 0.52 435.77 0.94 436.71 0.26 0.52 437.49 436A6 0.32 0.32 0.00 437.49 437.80 0.31 87 86 3.57 27 12 0.012 434.97 435.10 0.79 4.55 0.32 437.49 0.23 437.72 0.16 0.32 438.20 436.46 0.27 0.40 0.00 438.34 437.80 -0.54 87 88 3.27 186 12 0.012 434.97 438.88 0.79 4.16 0.27 437.49 1.32 439.88 0.13 0.27 440.28 439.88 0.07 0.16 0.13 440.50 443.46 2.96 0.00 88 88A 1.40 27 12 0.012 438.88 440.46 0.79 1.78 0.05 440.50 0.04 441.46 0.02 0.05 441.53 441.46 0.00 0.00 0.00 441.53 443.46 1.93 0.00 88 89 1.68 82 12 0.012 438.88 439.94 0.79 2.14 0.07 440.50 0.15 440.94 0.04 0.07 441.05 440.94 0.00 0.00 0.00 441.05 443.00 1.95 0.00 7A 7B 0.48 91 12 0.012 407.11 409.20 0.79 0.61 0.01 408.13 0.01 410.20 0.00 0.01 410.21 410.20 0.00 0.01 0.00 410.21 413.30 3.09 7B 7B 0.35 72 12 0.012 409.20 409.91 0.79 0.45 0.00 410.21 0.01 410.91 0.00 0.00 410.91 410.91 0.00 0.00 0.00 410.92 412.45 1.53 7C 7D 0.31 27 12 0.012 409.91 410.45 0.79 0.39 0.00 410.92 0.00 411.45 0.00 0.00 411.45 411.45 0.00 0.00 0.00 411.45 412.45 1.00 A A JOB NAME: MAPLEWOOD PARCEL PREPARED BY: G.Brooks JOB NUMBER: 94168 DESIGN STORM: 100 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. n ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB CFS FEE VALUE (FEET) FEE SQ FT/SEC FEE FEE FEE FEE (FEET) FEE (FEET) FEE (FEET) FEE (FEET) FEET RIM EL 2A 2 36.41 63 36 0.012 391.00 398.43 7.07 5.15 0.41 398.39 0.16 401.43 0.21 0.41 402.05 401.43 0.41 0.34 0.00 401.97 403.50 1.53 2 3 36.41 132 36 0.012 398.43 399.62 7.07 5.15 0.41 401.97 0.33 402.62 0.21 0.41 403.24 402.62 0.29 0.54 0.23 403.72 405.20 1.48 0.00 3 3A 0.73 27 12 0.012 401.62 402.16 0.79 0.93 0.01 403.72 0.01 403.73 0.01 0.01 403.75 403.16 0.00 0.00 0.00 403.75 405.20 1.45 0.00 3 4 3.42 132 12 0.012 401.62 402.28 0.79 4.35 0.29 403.72 1.03 404.74 0.15 0.29 405.18 403.70 0.29 0.02 0.05 404.96 406.27 1.31 0.00 4 4A 0.74 27 12 0.012 402.28 402.82 0.79 0.94 0.01 404.96 0.01 404.97 0.01 0.01 404.99 403.82 0.00 0.00 0.00 404.99 406.27 1.28 0.00 4 5 3.42 200 12 0.012 402.28 403.28 0.79 4.35 0.29 404.96 1.55 406.51 0.15 0.29 406.95 404.70 0.29 0.00 0.05 406.71 408.67 1.96 0.00 5 5A 0.73 27 12 0.012 403.28 405.66 0.79 0.93 0.01 406.71 0.01 406.72 0.01 0.01 406.74 406.66 0.00 0.00 0.00 406.74 408.67 1.93 0.00 5 6 3.42 200 12 0.012 403.28 404.28 0.79 4.35 0.29 406.71 1.55 408.26 0.15 0.29 408.70 405.51 0.22 0.02 0.02 408.52 412.01 3.49 0.00 6 6A 0.23 27 12 0.012 404.28 409.01 0.79 0.29 0.00 408.52 0.00 410.01 0.00 0.00 410.01 410.01 0.00 0.00 0.00 410.01 412.01 2.00 0.00 6 7 2.96 78 12 0.012 404.28 404.67 0.79 3.77 0.22 409.52 0.45 408.98 0.11 0.22 409.31 405.67 0.11 0.08 0.07 409.34 413.97 4.63 0.00 7 7A 0.92 58 12 0.012 404.67 407.11 0.79 1.17 0.02 409.34 0.03 409.38 0.01 0.02 409.41 408.11 0.01 0.00 0.00 409.41 413.50 4.09 0.00 7 8 2.10 44 12 0.012 407.11 411.39 0.79 2.67 0.11 409.34 0.13 412.39 0.06 0.11 412.56 412.39 0.03 0.02 0.03 412.58 414.96 2.38 0.00 8 8A 0.45 27 12 0.012 411.39 411.93 0.79 0.57 0.01 412.58 0.00 412.93 0.00 0.01 412.94 412.93 0.00 0.00 0.00 412.94 414.96 2.02 0.00 8 9 1.10 138 12 0,012 411.39 415.53 0.79 1.40 0.03 412.58 0.11 416.53 0.02 0.03 416.58 416.53 0.02 0.00 0.00 416.56 418.56 2.00 9 10 0.83 55 12 0,012 415.53 416.74 0.79 1.06 0.02 416.56 0.03 417.74 0.01 0.02 417.77 417.74 0.00 0.00 0.00 417.77 419.74 1.97 0.00 3 11 36.41 73 36 0.012 399.62 400.20 7.07 5.15 0.41 403.72 0.18 403.90 0.21 0.41 404.52 403.20 0.41 0.04 0.00 404.14 405.60 L46 11 12 36.41 149 36 0.012 400.20 400.94 7.07 5.15 0.41 404.14 0.38 404.52 0.21 0.41 405.14 403.94 0.41 0.04 0.01 404.77 408.29 3.52 0.00 12 12A 0.53 27 12 0.012 402.94 405.29 0.79 0.67 0.01 404.77 0.01 406.29 0.00 0.01 406.30 406.29 0.00 0.00 0.00 406.30 408.29 1.99 0.00 12 13 36.41 42 36 0.012 400.94 401.15 7.07 5.15 0.41 404.77 0.11 404.88 0.21 0.41 405.50 404.15 0.41 0.09 0.00 405.18 409.01 3.83 13 14 36.41 54 36 0.012 401.15 401.42 7.07 5.15 0.41 405.18 0.14 405.31 0.21 0.41 405.93 404.42 0.41 0.12 0.00 405.63 409.95 4.32 14 15 36.41 140 36 0.012 401.42 402.12 7.07 5.15 0.41 405.63 0.35 405.99 0.21 0.41 406.61 405.12 1.36 0.13 0.08 405.46 412.65 7.19 0.00 15 16 7.36 60 18 0.012 403.62 403.92 1.77 4.16 0.27 405.46 0.25 405.71 0.13 0.27 406.11 405.42 0.27 0.03 0.00 405.87 412.63 6.76 16 17 7.36 135 18 0.012 403.92 404.59 1.77 4.16 0.27 405.87 0.56 406.43 0.13 0.27 406.84 406.09 0.27 0.05 0.00 406.62 409.93 3.31 17 18 7.36 100 18 0.012 404.59 405.09 1.77 4.16 0.27 406.62 0.41 407.04 0.13 0.27 407.44 406.59 0.27 0.02 0.05 407.24 409.13 1.89 0.00 18 18A 1.87 27 12 0.012 405.59 406.13 0.79 2.38 0.09 407.24 0.06 407.31 0.04 0.09 407.44 407.13 0.00 0.00 0.00 407.44 409.13 1.69 0.00 18 19 7.36 130 18 0.012 405.09 406.31 1.77 4.16 0.27 407.24 0.54 407.81 0.13 0.27 408.21 407.81 0.69 0.36 0.01 407.99 410.57 2.68 0.00 19 20 0.32 200 12 0.012 406.81 413.01 0.79 0.41 0.00 407.89 0.01 414.01 0.00 0.00 414.01 414.01 0.00 0.00 0.00 414.02 416.55 2.53 20 20A 0.26 27 12 0.012 413.01 413.55 0.79 0.33 0.00 414.02 0.00 414.55 0.00 0.00 414.55 414.55 0.00 0.00 0.00 414.55 416.55 2.00 0.00 19 21 5.24 54 12 0.012 406.81 407.14 0.79 6.67 0.69 407.89 0.99 408.88 0.35 0.69 409.92 409.58 0.28 0.03 0.07 409.72 410.70 0.98 0.00 21 21A 0.62 27 12 0.012 407.14 407.68 0.79 0.79 0.01 409.72 0.01 409.73 0.00 0.01 409.75 408.68 0.00 0.00 0.00 1 409.75 410.70 0.95 0.00 40B NAME: MAPLEWOOD PARCEL PREPARED BY: G.Brooks JOB NUMBER: 94168 DESIGN STORM: 100 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. n ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB CFS) FEE VALUE (FEET) FEE SQ (FT/SEC) FEET FEE (FEET) (FEET) FEE (FEET) (FEET) FEE (FEET) FEE FEE FEE RIM EL 21 22 5.24 165 15 0.012 407.14 418.69 1.23 4.27 0.28 409.72 0.92 419.94 0.14 0.28 420.37 420.21 0.69 0.03 0.05 419.75 421.87 2.12 0.00 22 23 1.31 27 12 0.012 418.69 418.83 0.79 1.67 0.04 419.75 0.03 419.83 0.02 0.04 419.89 419.83 0.02 0.03 0.00 419.91 421.87 1.96 23 23A 0.88 38 12 0.012 418.83 420.34 0.79 1.12 0.02 419.91 0.02 421.34 0.01 0.02 421.37 421.34 0.00 0.00 0.00 421.37 424.37 3.00 0.00 22 24 5.24 75 12 0.012 418.69 422.89 0.79 6.67 0.69 419.75 1.37 423.89 0.35 0.69 424.93 425.30 0.69 0.05 0.10 424.76 425.94 1.18 24 24A 1.02 13 12 0.012 422.89 423.1 0.00 5 0.79 1.30 0.03 424.76 0.01 424.77 0.01 0.03 424.81 424.15 0.00 0.00 0.00 424.81 426.74 1.93 0.00 24 25 5.24 218 12 0.012 422.89 433.14 0.79 6.67 0.69 424.76 3.98 434.14 0.35 0.69 435.18 435.15 0.53 0.07 0.15 434.86 436.27 1.41 0.00 25 25A 1.03 15 12 0.012 433.14 433.44 0.79 1.31 0.03 434.86 0.01 434.87 0.01 0.03 434.91 434.44 0.00 0.00 0.00 434.91 437.04 2.13 0.00 25 26 1.32 27 12 0.012 433.14 433.27 0.79 1.68 0.04 434.86 0.03 434.89 0.02 0.04 434.96 434.27 0.04 0.00 0.00 434.92 436.271 1.35 26 26A 1.27 14 12 0.012 433.27 433.55 0.79 1.62 0.04 434.92 0.02 434.93 0.02 0.04 435.00 434.55 0.00 0.00 0.00 435.00 436.57 1.57 25 27 4.60 83 12 0.012 433.14 437.12 0.79 5.86 0.53 434.86 1.17 438.12 0.27 0.53 438.92 438.12 0.16 0.05 0.21 439.03 440.31 00 0.1.00 0.00 27 28 1.53 27 12 0.012 437.12 437.26 0.79 1.95 0.06 439.03 0.04 439.07 0.03 0.06 439.16 438.26 0.05 0.03 0.00 439.14 440.31 1.17 28 28A 1.38 15 12 0.012 437.26 437.56 0.79 1.76 0.05 439.14 0.02 439.16 0.02 0.05 439.23 438.56 0.00 0.00 0.00 439.23 441.08 1.85 0.00 27 29 2.48 199 12 0.012 437.12 446.23 0.79 3.16 0.16 439.03 0.81 447.23 0.08 0.16 447.46 447.23 0.02 0.00 0.12 447.56 449.76 2.20 0.00 29 30 1.43 27 12 0.012 446.23 446.3? 0.79 1.82 0.05 447.56 0.04 447.60 0.03 0.05 447.68 447.37 0.04 0.01 0.00 447.64 449.76 2.12 30 30A 1.31 15 12 0.012 446.37 446.67 0.79 1.67 0.04 447.64 0.02 447.67 0.02 0.04 447.73 447.67 0.00 0.00 0.00 447.73 450.25 2.52 0.00 29 31 0.82 190 12 0.012 446.23 454.40 0.79 1.04 0.02 447.56 0.08 455.40 0.01 0.02 455.43 455.40 0.01 0.02 0.00 455.44 457.94 2.50 31 31A 0.62 27 12 0.012 454.40 454.94 0.79 0.79 0.01 455.44 0.01 455.94 0.00 0.01 455.95 455.94 0.00 0.00 0.00 455.95 457.94 1.99 .00 15 32 29.33 38 24 0.012 403.12 407.84 3.14 9.34 1.36 405.46 0.54 409.84 0.68 1.36 411.87 412.52 1.36 0.54 0.01 411.72 414.33 0 0.00 .00 32 32A 0.22 27 12 0.012 408.84 411.32 0.79 0.28 0.00 411.72 0.00 412.32 0.00 0.00 412.32 412.32 0.00 0.00 0.00 412.32 414.33 0 0.01 32 33 29.33 157 24 0.012 407.84 408.62 3.14 9.34 1.36 411.72 2.23 413.95 0.68 1.36 415.98 412.96 1.18 0.15 0.01 414.96 0.00 417.54 2.58 0.00 33 33A 0.17 27 12 0.012 409.62 414.53 0.79 0.22 0.00 414.96 0.00 415.53 0.00 0.00 415.53 415.53 0.00 0.00 0.00 415.53 417.54 2.01 33 34 27.32 78 24 0.012 408.62 409.01 3.14 8.70 1.18 414.96 0.96 415.93 0.00 0.59 1.18 417.69 413.35 1.18 0.09 0.05 416.66 419.12 2.46 0.00 34 35 27.32 124 24 0.012 409.01 415.41 3.14 8.70 1.18 416.66 1.53 418.19 0.59 1.18 419.95 419.71 1.18 0.00 0.01 418.79 421.70 2.91 0.00 35 35A 1 0.39 27 12 0.012 416.41 418.68 0.79 0.50 0.00 418.79 0.00 419.68 0.00 0.00 419.69 419.68 0.00 0.00 0.00 419.69 421.70 2.01 0.00 35 36 27.32 159 24 0.012 415.41 416.20 3.14 8.70 1.18 418.79 1.96 420.75 0.59 1.18 422.51 419.98 0.96 0.05 0.05 421.66 425.17 3.51 0.00 36 37 24.64 177 24 0.012 416.20 417.08 3.14 7.84 0.96 421.66 1.78 423.43 0.48 0.96 424.87 419.08 2.03 0.08 0.44 423.35 429.11 5.76 37 38 0.15 29 12 0.012 418.08 423.88 0.79 0.19 0.00 423.35 0.00 424.88 0.00 0.00 424.88 424.98 0.00 0.00 0.00 424.88 429.23 0.00 4.00 0.00 37 39 14.011 185 15 0.012 417.83 430.10 1.23 11.42 2.03 423.35 7.35 431.35 1.01 2.03 434.39 434.56 1.43 0.00 0.00 433.13 433.40 0.27 0.00 39 40 11.771 55 15 1 0.012 430.10 430.70 1.23 9.59 1.43 433.13 1.54 434.67 0.72 1.43 43 6.8 1 435.19 1.43 0.04 0.06 435.49 1 4-- 0.90 OB NAME: MAPLEWOOD PARCEL PREPARED BY: G.Brooks OB NUMBER: 94168 DESIGN STORM: 100 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. n ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB CFS FEE VALUE (FEET) (FEET) SQ FT FTISEC (FEET) FEE (FEET) FEE FEE (FEET) FEE E (FEET) (FEET) FEE (FEET) RIM EL 0.00 40 40A 0.62 27 12 0.012 430.95 431.49 0.79 0.79 0.01 435.49 0.01 435.50 0.00 0.01 435.51 432.49 0.00 0.00 0.00 435.51 434.59 -0.92 0.00 40 41 11.77 120 15 0.012 430.70 434.42 1.23 9.59 1.43 435.49 3.36 438.85 0.72 1.43 441.00 438.90 1.43 0.27 0.01 439.85 438.21 -1.64 41 41A 0.11 27 12 0.012 434.67 435.21 0.79 0.14 0.00 439.85 0.00 439.85 0.00 0.00 439.85 436.21 0.00 0.00 0.00 439.85 438.21 0.00 1.00 0.00 41 42 11.77 77 15 0.012 434.42 437.91 1.23 9.59 1.43 439.85 2.16 442.01 0.72 1.43 444.15 442.38 1.43 0.40 0.00 443.12 441.21 -1.91 42 43 11.77 98 15 0.012 437.91 441.93 1.23 9.59 1.43 443.12 2.75 445.87 772 1.43 448.62 446.40 1.43 0.14 0.06 446.79 445.72 -1.07 43 43A 0.62 27 12 0.012 442.18 442.72 0.79 07 0.00 9 0.01 446.79 0.01 446.80 0.00 0.01 446.81 443.72 0.00 0.00 0.00 446.81 445.72 -1.09 0.00 43 44 11.77 65 15 0.012 441.93 445.89 1.23 9.59 1.43 446.79 1.82 448.61 0.72 1.43 450.76 450.35 1.43 0.31 0.00 449.64 449.16 -0.48 44 45 11.77 78 15 0.012 445.89 449.67 1.23 9.59 1.43 449.64 2.19 451.83 0.72 1.43 453.97 454.14 1.43 0.29 0.06 453.06 45321 0.15 45 45A 0.62 28 12 0.012 449.92 450.48 0.79 0.79 0.01 453.06 0.01 453.06 0.00 0.00 0.01 453.08 451.48 0.00 0.00 0.00 453.08 453.48 0.40 0.00 45 46 11.77 122 15 0.012 449.67 455.34 1.23 9.59 1.43 453.06 3.42 456.59 0.72 1.43 458.74 459.08 1.15 0.03 0.00 457.97 458.77 0.00 0.00 46 47 10.54 284 15 0.012 455.34 467.21 1.23 8.59 1.15 457.97 6.38 468.46 0.57 1.15 470.19 468.46 0.08 0.00 1.16 471.27 470.70 -0.57 0.00 47 48 5.79 27 15 0.012 467.45 467.82 1.23 4.72 0.35 471.27 0.18 471.45 0.17 0.35 471.97 469.48 0.32 0.02 0.00 471.67 471.20 -0.47 48 48A 5.60 14 15 0.012 467.82 468.10 1.23 4.56 0.32 471.67 0.09 471.76 0.16 0.32 472.24 469.35 0.00 0.00 0.00 472.24 471.60 0.64 0.00 47 49 1.74 215 12 0.012 467.45 476.25 0.79 2.22 0.08 471.27 0.43 477.25 0.04 0.08 477.36 477.25 0.08 0.00 0.04 477.33 479.73 2.40 0.00 49 49A 1.74 44 12 0.012 476.25 477.13 0.79 2.22 0.08 477.33 0.09 478.13 0.04 0.08 478.24 478.13 0.00 0.00 0.00 478.24 480.13 1.89 0.00 49 50 1.74 82 12 0.012 476.25 479.68 0.79 2.22 0.08 477.33 0.16 480.68 0.04 0.08 480.79 480.68 0.08 0.10 0.00 480.82 483.22 2.40 50 50A 1.74 27 12 0.012 479.68 480.22 0.79 2.22 0.08 1 480.82 0.05 481.22 0.04 0.08 481.33 481.22 0.00 0.00 0.00 481.33 483.22 1.89 0.00 34 51 1.37 185 12 0.012 410.01 410.96 0.79 1.74 0.05 416.66 0.23 416.89 0.02 0.05 416.96 411.96 0.05 0.06 0.00 416.97 415.00 -1.97 51 52 1.37 80 12 0.012 410.96 412.24 0.79 1.74 0.05 415.00 0.10 415.10 0.02 0.05 415.17 413.24 0.05 0.01 0.00 415.13 415.59 0.46 52 53 1.37 27 12 0.012 412.24 412.56 0.79 1.74 0.05 415.13 0.03 415.17 0.02 0.05 415.24 413.56 0.01 0.06 0.00 415.29 415.59 0.30 53 54 0.55 130 12 0.012 412.56 414.25 0.79 0.70 0.01 415.29 0.03 415.32 0.00 0.01 415.33 415.25 0.00 0.01 0.00 415.34 417.81 2.47 54 54A 0.09 27 12 0.012 414.25 414.79 0.79 0.11 0.00 415.34 0.00 415.79 0.00 0.00 415.79 415.79 0.00 0.00 0.00 415.79 417.81 2.02 0.00 36 55 1.31 65 12 0.012 417.20 420.44 0.79 1.67 0.04 421.66 0.07 421.73 0.02 0.04 1 421.79 421.44 0.04 0.06 0.00 421.81 424.07 2.26 55 56 1.31 27 12 0.012 420.44 420.57 0.79 1.67 0.04 421.81 0.03 421.84 0.02 0.04 421.90 421.57 0.02 0.06 0.00 421.94 424.07 2.13 56 57 0.91 150 12 0.012 420.57 423.87 0.79 1.16 0.02 421.94 0.08 424.87 0.01 0.02 424.90 424.87 0.00 0.00 0.00 424.90 428.50 3.60 0.00 37 58 10.63 124 18 0.012 417.58 418.25 1.77 6.02 0.56 423.35 1.07 424.43 0.28 0.56 425.27 420.69 0.56 0.37 0.00 425.08 430.00 4.92 58 59 10.63 124 18 0.012 418.25 418.87 1.77 6.02 0.56 425.08 1.07 426.15 0.28 0.56 427.00 421.31 0.56 0.74 0.00 427.18 424.00 -3.18 59 60 10.63 85 18 0.012 418.87 419.34 1.77 6.02 0.56 424.00 0.74 424.74 0.28 0.56 425.59 421.78 0.56 0.21 0.04 425.27 425.06 -0.21 0.00 60 60A 0.88 27 12 0.012 419.84 422.05 0.79 1.12 0.02 425.27 0.01 425.28 0.01 0.02 425.31 423.05 0.00 0.00 0.00 425.31 425.06 -0.25 60 61 10.63 70 18 0.012 419.34 419.69 1.77 6.02 0.56 425.27 0.61 54 0.00 425.87 0.28 0.56 426.72 422.13 0.56 0.05 0.00 426.20 426. 0.34 61 62 10.63 162 18 0.012 419.69 420.50 1.77 6.02 0.56 426.20 1.40 427.60 0.28 0.56 428.45 422.30 0.31 0.07 0.02 428.22 426.57 -1.65 0.00 62 62A 0.37 27 12 1 0.012 421.00 423.57 0.79 0.47 0.00 428.22 0.00 428.23 0.00 0.00 428.23 424.57 0.00 0.00 0.00 428.23 426.57 -1.66 0.00 OB NAME: MAPLEWOOD PARCEL PREPARED BY: G.Brooks OB NUMBER: 94168 DESIGN STORM: 100 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. n ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB CFS FEE VALUE (FEET) E SQ /SEC (FEET) (FEET) FEE E (FEET) (FEET) (FEET) (FEET) FEET FEE (FEET) FEE RIM EL 62 63 7.91 66 18 0.012 420.50 420.83 1.77 4.48 0.31 428.22 0.32 428.54 0.16 0.31 429.01 422.63 0.31 0.41 0.02 429.12 427.86 -1.26 0.00 63 64 0.53 30 12 0.012 421.33 424.64 0.79 0.67 0.01 429.12 0.01 429.13 0.00 0.01 429.14 425.64 0.00 0.01 0.00 429.15 428.54 -0.61 64 64A 0.30 45 12 0.012 424.64 425.54 0.79 0.38 0.00 429.15 0.00 429.15 0.00 0.00 429.15 426.54 0.00 0.00 0.00 429.15 428.54 -0.61 0.00 63 65 7.91 110 18 0.012 420.83 421.38 1.77 4.48 0.31 429.12 0.53 429.65 0.16 0.31 430.12 423.18 0.31 0.00 0.01 429.82 426.10 -3.72 0.00 65 65A 0.38 48 12 0.012 421.88 423.10 0.79 0.48 0.00 429.82 0.00 429.82 0.00 0.00 429.83 424.10 0.00 0.00 0.00 429.83 426.10 -3.73 0.00 65 66 7.91 109 18 0.012 421.38 421.93 1.77 4.48 0.31 429.82 0.52 430.34 0.16 0.31 430.81 423.73 0.65 0.41 0.00 430.58 427.23 -3.35 0.00 66 67 0.11 51 15 0.012 422.18 422.43 1.23 0.09 0.00 427.23 0.00 427.23 0.00 0.00 427.23 423.68 0.00 0.00 0.00 427.23 426.09 -1.14 67 67A 0.05 27 12 0.012 422.68 423.22 0.79 0.06 0.00 427.23 0.00 427.23 0.00 0.00 427.23 424.22 0.00 0.00 0.00 1 427.23 426.09 -1.14 0.00 66 68 7.91 74 15 0.012 422.18 425.11 1.23 6.45 0.65 430.58 0.94 431.51 0.32 0.65 432.48 427.58 0.65 0.85 0.01 432.70 428.88 -3.82 0.00 68 68A 0.09 27 12 0.012 425.44 425.67 0.79 0.11 0.00 432.70 0.00 432.70 0.00 0.00 432.70 426.67 0.00 0.00 0.00 432.70 428.88 -3.82 0.00 68 69 7.91 198 15 0.012 425.11 429.49 1.23 6.45 0.65 432.70 2.51 435.20 0.32 0.65 436.17 431.97 0.65 0.00 0.01 435.53 433.28 -2.25 0.00 69 69A 0.09 27 12 0.012 429.49 430.28 0.79 0.11 0.00 435.53 0.00 435.53 0.00 0.00 435.53 431.28 0.00 0.00 0.00 435.53 433.28 -2.25 0.00 69 70 7.91 200 15 0.012 429.49 433.15 1.23 6.45 0.65 435.53 2.53 438.06 0.32 0.65 439.03 434.80 0.32 0.00 0.01 438.72 437.12 -1.60 0.00 70 70A 0.08 27 12 0.012 431.40 433.94 0.79 0.10 0.00 438.72 0.00 438.72 0.00 0.00 438.72 434.94 0.00 0.00 0.00 438.72 437.12 -1.60 0.00 70 71 5.59 109 15 0.012 433.15 434.38 1.23 4.56 0.32 438.72 0.69 439.41 0.16 0.32 439.89 436.00 0.75 0.43 0.09 439.66 439.15 -0.51 0.00 71 71A 0.08 150 12 0.012 434.63 436.73 0.79 0.10 0.00 439.66 0.00 439.66 0.00 0.00 439.66 437.73 0.00 0.00 0.00 439.66 439.15 -0.51 0.00 71A 72 2.29 172 12 0.012 436.73 441.67 0.79 2.92 0.13 439.66 0.60 442.67 0.07 0.13 442.87 442.67 0.00 0.00 0.07 442.94 442.73 -0.21 0.00 72 72A 0.09 27 12 0.012 441.67 442.21 0.79 0.11 0.00 442.94 0.00 443.21 0.00 0.00 443.21 443.21 0.00 0.00 0.00 443.21 442.73 -0.48 0.00 0.00 39 74 2.24 55 12 0.012 430.35 430.79 0.79 2.85 0.13 433.13 0.18 433.31 0.06 0.13 433.50 431.79 0.13 0.00 0.01 433.39 434.48 1.09 0.00 74 74A 0.18 32 12 0.012 430.79 431.43 0.79 0.23 0.00 433.39 0.00 433.39 0.00 0.00 433.39 432.43 0.00 0.00 0.00 433.39 434.23 0.84 0.00 74 75 2.24 170 12 0.012 430.79 432.15 0.79 2.85 0.13 433.39 0.57 433.95 0.06 0.13 434.14 433.15 0.13 0.01 0.01 434.03 439.38 5.35 0.00 75 75A 0.12 27 12 0.012 432.15 436.04 0.79 0.15 0.00 434.03 0.00 437.04 0.00 0.00 437.04 437.04 0.00 0.00 0.00 437.04 439.38 2.34 0.00 75 76 2.24 152 12 0.012 432.15 442.86 0.79 2.85 0.13 434.03 0.51 443.86 0.06 0.13 444.05 443.86 0.13 0.01 0.00 443.94 446.40 2.46 0.00 76 76A 0.09 27 12 0.012 442.86 443.40 0.79 0.11 0.00 443.94 0.00 444.40 0.00 0.00 444.40 444.40 0.00 0.00 0.00 444.40 446.40 2.00 0.00 76 1 77 1 2.24 166 12 0.012 442.86 447.61 0.79 2.85 0.13 443.94 0.55 448.61 0.06 0.13 448.80 448.61 0.13 0.11 0.00 448.78 453.99 5.21 77 1 78 1 2.24 28 12 0.012 447.61 447.75 0.79 2.85 0.13 448.78 0.09 448.87 0.06 0.13 449.06 448.75 0.13 0.04 0.00 448.98 454.37 5.39 78 79 2.24 65 12 0.012 447.75 448.07 0.79 2.85 0.13 448.98 0.22 449.19 0.06 0.13 449.38 449.07 0.13 0.07 1 0.00 449.32 1 451.2511 1.93 OB NAME: MAPLEWOOD PARCEL PREPARED BY: G.Brooks OB NUMBER: 94168 DESIGN STORM: 100 YEAR ENTRANCE ENTRANCE EXIT OUTLET INLET APPROACH BEND JUNCTION PIPE PIPE MANNING'S OUTLET INLET PIPE FLOW VELOCITY TAILWATER FRICTION HGL HEAD HEAD CONTROL CONTROL VELOCITY HEAD HEAD HEADWATER FROM TO FLOW LENGTH DIA. n ELEVATION ELEVATION AREA VELOCITY HEAD ELEVATION LOSS ELEVATION LOSS LOSS ELEVATION ELEVATION HEAD LOSS LOSS ELEVATION CB CB CFS (FEET) VALUE FEE (FEET) S FT/SEC FEE (FEET) (FEET) (FEET) (FEET) (FEET) FEE FEE FEE (FEET) (FEET) FEE RIM EL 79 80 2.24 27 12 0.012 448.07 448.21 0.79 2.85 0.13 449.32 0.09 449.41 0.06 0.13 449.60 449.21 0.13 0.17 0.00 449.64 451.25 1.61 80 81 2.24 78 12 0.012 448.21 449.86 0.79 2.85 0.13 449.64 0.26 450.86 0.06 0.13 451.05 450.86 0.13 0.01 0.00 450.93 452.94 2.01 81 82 2.24 96 12 0.012 449.86 454.20 0.79 2.85 0.13 450.93 0.32 455.20 0.06 0.13 455.39 455.20 0.07 0.02 0.03 455.37 457.74 2.37 82 82A 0.58 27 12 0.012 454.20 454.74 0.79 0.74 0.01 455.37 0.01 455.74 0.00 0.01 455.75 455.74 0.00 0.00 0.00 455.75 457.74 1.99 0.00 00 0.00 82 83 1.70 114 12 0.012 454.20 459.96 1 0.79 2.16 0.07 455.37 0.22 460.96 0.04 0.07 461.07 460.96 0.03 0.08 0.00 461.12 463.50 2.38 83 83A 1.10 27 12 0.012 459.96 460.50 1 0.79 1.40 0.03 461.12 0.02 461.50 0.02 0.03 461.55 461.50 0.00 0.00 0.00 461.55 463.50 1.95 0.00 46 84 1.23 72 12 0.012 455.59 455.95 1 0.79 1.57 0.04 457.97 0.07 458.04 0.02 0.04 458.10 456.95 0.04 0.00 0.02 458.08 459.49 1.41 84 84A 1.03 27 12 0.012 455.95 456.49 0.79 1.31 0.03 458.08 0.02 458.10 0.00 0.01 0.03 458.14 457.49 0.00 0.00 0.00 458.14 459.49 1.35 0.00 84 85 1.23 165 12 0.012 455.95 464.11 0.79 1.57 0.04 458.08 0.17 465.11 0.02 0.04 465.17 465.11 0.04 0.04 0.00 465.17 467.65 148 85 85A 1.23 27 12 0.012 464.11 464.65 0.79 1.57 0.04 465.17 0.03 465.65 0.02 0.04 465.71 465.65 0.00 0.00 0.00 465.71 467.65 1.94 71 87 5.45 68 12 0.012 434.63 434.97 0.79 6.94 0.75 439.66 1.34 441.00 0.37 0.75 442.13 436.78 0.44 0.46 0.00 442.14 437.80 0.00 4.00 87 86 4.20 27 12 0.012 434.97 435.10 0.79 5.35 0.44 442.14 0.32 442.45 0.22 0.44 443.12 436.72 0.37 0.56 0.00 443.31 437.80 -5.51 87 88 3.84 186 12 0.012 434.97 438.88 0.79 4.89 0.37 442.14 1.82 443.96 0.19 0.37 444.52 439.88 0.10 0.22 0.18 444.82 443.46 -1.36 0.00 88 88A 1.64 27 12 0.012 438.88 440.46 0.79 2.09 0.07 444.82 0.05 444.87 0.03 0.07 444.97 441.46 0.00 0.00 0.00 444.97 443.46 -1.51 88 89 1.97 82 12 0.012 438.88 439.94 0.79 2.51 0.10 444.82 0.21 445.03 0.05 0.10 445.18 440.94 0.00 0.00 0.00 0.00 445.18 443.00 2.18 0.00 7A 7B 0.57 91 12 0.012 407.11 409.20 0.79 0.73 0.01 409.41 0.02 410.20 0.00 0.01 410.21 410.20 0.00 0.01 0.00 410.22 413.30 3.08 7B 7C 0.42 72 12 0.012 409.20 409.91 0.79 0.53 0.00 410.22 0.01 410.91 0.00 0.00 410.92 410.91 0.00 0.01 0.00 410.92 412.45 1.53 7C 7D 0.37 27 12 0.012 409.91 410.45 0.79 0.47 0.00 410.92 0.00 411.45 0.00 0.00 411.46 411.45 0.00 0.00 0.00 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