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Home My WebLink About21679 - Fig - 5.1 - Conveyance AnalysisI: I: I: I: I: I: I: IN COMPLIANCE WITH CITY OF RENTON STANDARDSTED-40-4188SUMPTER SHORT PLATMAINVUE WA LLC1110 112TH AVE NE, SUITE 202BELLEVUE, WA 98004SUMPTER SHORT PLATLUA: 19-000091C: 21-0003180SUMPTER SHORT PLATPR: 19-0001792/11/2022 SUMPTER SHORT PLAT SCALE: 1"=40' 21679-conveyance BARGHAUSEN CONSULTING ENGINEERS - PIPE FLOW CALCULATOR using the Rational Method & Manning Formula CITY OF RENTON DESIGN FOR 100 YEAR STORM JOB NAME:Sumpter Short Plat NOTE: ENTER DEFAULTS AND STORM DATA BEFORE BEGINNING JOB#:21679 DEFAULTS C=0.7 n=0.014 FILE NO.: d=12 Tc=6.3 A= Contributing Area (Ac)Qd= Design Flow (cfs)COEFFICIENTS FOR THE RATIONAL METHOD "Ir"-EQUATION C= Runoff Coefficient Qf= Full Capacity Flow (cfs)STORM Ar Br Tc= Time of Concentration (min)Vd= Velocity at Design Flow (fps)2YR 1.58 0.58 I= Intensity at Tc (in/hr) Vf= Velocity at Full Flow (fps)10YR 2.44 0.64 PRECIP=3.9 d= Diameter of Pipe (in) s= Slope of pipe (%)25YR 2.66 0.65 Ar=2.61 L= Length of Pipe (ft)n= Manning Roughness Coefficient 50YR 2.75 0.65 Br=0.63 D= Water Depth at Qd (in)Tt= Travel Time at Vd (min)100YR 2.61 0.63 FROM TO A s L d Tc n C SUM A A*C SUM A*C I Qd Qf Qd/Qf X D/d D Vf Vd/Vf Vd Tt Qr ====== ====== ====== ====== ================== ====== ============ ===================== ====== ====== ================== ====== ====== ====== ====== ====== ====== CB#10 CB#9 0.36 0.56 24 12 6.3 0.014 0.7 0.36 0.25 0.25 3.19 0.80 2.47 0.325 0.392 4.70 3.15 0.90 2.82 0.14 -- CB#9 CB#8 0.19 0.56 36 12 6.4 0.014 0.7 0.55 0.13 0.39 3.15 1.21 2.47 0.490 0.494 5.93 3.15 1.00 3.16 0.19 0.507 CB#8 CB#7 0.33 0.56 76 12 6.6 0.014 0.7 0.88 0.23 0.62 3.09 1.90 2.47 0.769 0.657 7.88 3.15 1.10 3.48 0.36 0.571 CB#7 CB#6 0.02 0.56 198 12 7.0 0.014 0.7 0.9 0.01 0.63 2.99 1.88 2.47 0.761 0.652 7.82 3.15 1.10 3.47 0.95 0.011 CB#6 CB#5 0.25 0.60 140 12 7.9 0.014 0.7 1.15 0.18 0.81 2.76 2.22 2.56 0.867 0.718 8.62 3.26 1.12 3.67 0.64 0.179 CB#5 CB#4 0.47 1.09 121 12 8.6 0.014 0.7 1.62 0.33 1.13 2.63 2.98 3.45 0.863 0.715 8.58 4.40 1.12 4.94 0.41 0.342 CB#4 CB#3 0.58 1.50 13 12 9.0 0.014 0.7 2.2 0.41 1.54 2.55 3.93 4.05 0.970 0.790 9.48 5.16 1.13 5.83 0.04 0.319 CB#3 TANK 0.00 1.67 6 12 9.0 0.014 0.7 2.2 0.00 1.54 2.55 3.92 4.27 0.917 0.748 8.98 5.45 1.13 6.15 0.02 0.003 CB#11 CB#12 1.60 1.70 71 12 15.0 0.014 0.31 1.6 0.50 0.50 1.85 0.92 4.31 0.213 0.310 3.72 5.49 0.79 4.34 0.27 -- CB#12 CB#13 0.00 3.58 98 12 15.3 0.014 0.31 1.6 0.00 0.50 1.83 0.91 6.26 0.145 0.256 3.07 7.97 0.71 5.64 0.29 0.011 CB#13 CB#14 0.00 5.52 60 12 15.6 0.014 0.31 1.6 0.00 0.50 1.81 0.90 7.77 0.115 0.230 2.76 9.90 0.66 6.54 0.15 0.012 CB#14 S OUTFALL 0.00 2.00 65 12 15.7 0.014 0.31 1.6 0.00 0.50 1.79 0.89 4.68 0.190 0.292 3.51 5.96 0.77 4.56 0.24 0.006 CB#2 CB#1 0.00 3.37 42 12 6.3 0.014 0.7 0 0.00 0.00 3.19 1.31 6.07 0.216 0.313 3.75 7.74 0.79 6.14 0.11 -- CB#1 EX CB#1 0.00 0.60 20 12 6.4 0.014 0.07 0 0.00 0.00 3.16 1.31 2.56 0.511 0.507 6.08 3.26 1.01 3.29 0.10 0.000 1 I: I: I: I: I: I: I: IN COMPLIANCE WITH CITY OF RENTON STANDARDSTED-40-4188SUMPTER SHORT PLATMAINVUE WA LLC1110 112TH AVE NE, SUITE 202BELLEVUE, WA 98004SUMPTER SHORT PLATLUA: 19-000091C: 21-0003180SUMPTER SHORT PLATPR: 19-0001792/11/2022 SUMPTER SHORT PLAT SCALE: 1"=40' BACKWATER COMPUTER PROGRAM FOR PIPES Pipe data from file:21679.bwp Surcharge condition at intermediate junctions Tailwater Elevation:372.5 feet Discharge Range:3.43 to 4.43 Step of 0.5 [cfs] Overflow Elevation:377.39 feet Weir:NONE Channel Width:2. feet PIPE NO. 1: 6 LF - 12"CP @ 1.67% OUTLET: 371.06 INLET: 371.16 INTYP: 5 JUNC NO. 1: OVERFLOW-EL: 374.47 BEND: 0 DEG DIA/WIDTH: 4.0 Q-RATIO: 0.00 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 3.43 1.54 372.70 * 0.012 0.80 0.61 1.44 1.44 1.39 1.54 1.13 3.93 1.60 372.76 * 0.012 0.85 0.67 1.44 1.44 1.40 1.60 1.28 4.43 1.68 372.84 * 0.012 0.89 0.74 1.44 1.44 1.42 1.68 1.44 PIPE NO. 2: 13 LF - 12"CP @ 1.54% OUTLET: 371.16 INLET: 371.36 INTYP: 5 JUNC NO. 2: OVERFLOW-EL: 373.72 BEND: 90 DEG DIA/WIDTH: 1.8 Q-RATIO: 0.32 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 3.43 1.99 373.35 * 0.012 0.80 0.63 1.54 1.54 1.45 1.99 1.52 3.93 2.25 373.61 * 0.012 0.85 0.69 1.60 1.60 1.54 2.25 1.78 4.43 2.55 373.91 * 0.012 0.89 0.76 1.68 1.68 1.65 2.55 2.09 PIPE NO. 3: 121 LF - 12"CP @ 1.09% OUTLET: 371.36 INLET: 372.68 INTYP: 5 JUNC NO. 3: OVERFLOW-EL: 374.67 BEND: 0 DEG DIA/WIDTH: 1.8 Q-RATIO: 0.34 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 2.60 1.41 374.09 * 0.012 0.70 0.59 1.99 1.99 1.22 1.41 1.04 2.98 1.89 374.57 * 0.012 0.74 0.64 2.25 2.25 1.65 1.89 1.14 **************** OVERFLOW ENCOUNTERED AT 3.36 CFS DISCHARGE ***************** ******** OVERFLOW CONDITIONS CALCULATED ASSUMING SURCHARGE CONDITIONS ********* 3.36 2.45 375.13 * 0.012 0.79 0.70 2.55 2.55 2.14 2.45 1.27 PIPE NO. 4: 140 LF - 12"CP @ 0.60% OUTLET: 372.68 INLET: 373.52 INTYP: 5 JUNC NO. 4: OVERFLOW-EL: 379.54 BEND: 0 DEG DIA/WIDTH: 4.0 Q-RATIO: 0.18 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 1.94 0.99 374.51 * 0.012 0.60 0.59 1.41 1.41 0.89 0.99 0.84 2.22 1.63 375.15 * 0.012 0.64 0.65 1.89 1.89 1.52 1.63 0.91 2.50 2.34 375.86 * 0.012 0.68 0.71 2.45 2.45 2.20 2.34 0.98 PIPE NO. 5: 198 LF - 12"CP @ 0.56% OUTLET: 373.52 INLET: 374.62 INTYP: 5 JUNC NO. 5: OVERFLOW-EL: 381.91 BEND: 60 DEG DIA/WIDTH: 4.0 Q-RATIO: 0.01 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 1.64 0.85 375.47 * 0.012 0.55 0.55 0.99 0.99 0.55 0.85 0.78 1.88 1.08 375.70 * 0.012 0.59 0.59 1.63 1.63 0.98 1.08 0.85 2.12 1.98 376.60 * 0.012 0.63 0.64 2.34 2.34 1.85 1.98 0.92 PIPE NO. 6: 76 LF - 12"CP @ 0.57% OUTLET: 374.62 INLET: 375.05 INTYP: 5 JUNC NO. 6: OVERFLOW-EL: 378.79 BEND: 10 DEG DIA/WIDTH: 4.0 Q-RATIO: 0.57 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 1.63 0.78 375.83 * 0.012 0.55 0.54 0.85 0.85 0.55 ***** 0.78 1.86 0.96 376.01 * 0.012 0.59 0.59 1.08 1.08 0.81 0.96 0.85 2.10 1.92 376.97 * 0.012 0.62 0.64 1.98 1.98 1.78 1.92 0.92 PIPE NO. 7: 36 LF - 12"CP @ 0.56% OUTLET: 375.05 INLET: 375.25 INTYP: 5 JUNC NO. 7: OVERFLOW-EL: 377.39 BEND: 90 DEG DIA/WIDTH: 1.8 Q-RATIO: 0.51 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 1.04 0.71 375.96 * 0.012 0.43 0.42 0.78 0.78 0.60 0.71 0.61 1.19 0.87 376.12 * 0.012 0.46 0.45 0.96 0.96 0.79 0.87 0.67 1.34 1.85 377.10 * 0.012 0.49 0.48 1.92 1.92 1.77 1.85 0.72 PIPE NO. 8: 24 LF - 12"CP @ 0.58% OUTLET: 375.25 INLET: 375.39 INTYP: 5 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.69 0.62 376.01 * 0.012 0.35 0.33 0.71 0.71 0.58 0.62 0.47 0.79 0.77 376.16 * 0.012 0.38 0.36 0.87 0.87 0.74 0.77 0.51 0.89 1.76 377.15 * 0.012 0.40 0.38 1.85 1.85 1.73 1.76 0.55 BACKWATER COMPUTER PROGRAM FOR PIPES Pipe data from file:21679 Bypass.bwp Surcharge condition at intermediate junctions Tailwater Elevation:370.8 feet Discharge Range:0.5 to 1.42 Step of 0.5 [cfs] Overflow Elevation:385.83 feet Weir:NONE Channel Width:2. feet PIPE NO. 1: 58 LF - 12"CP @ 1.98% OUTLET: 370.80 INLET: 371.95 INTYP: 5 JUNC NO. 1: OVERFLOW-EL: 376.35 BEND: 34 DEG DIA/WIDTH: 4.0 Q-RATIO: 0.01 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.50 0.39 372.34 * 0.012 0.30 0.21 0.00 0.21 0.30 ***** 0.39 1.00 0.57 372.52 * 0.012 0.43 0.30 0.00 0.30 0.43 ***** 0.57 1.50 0.71 372.66 * 0.012 0.52 0.36 0.00 0.36 0.52 ***** 0.71 PIPE NO. 2: 60 LF - 12"CP @ 5.53% OUTLET: 371.95 INLET: 375.27 INTYP: 5 JUNC NO. 2: OVERFLOW-EL: 379.03 BEND: 10 DEG DIA/WIDTH: 4.0 Q-RATIO: 0.01 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.50 0.37 375.64 * 0.012 0.30 0.16 0.39 0.39 0.30 ***** 0.37 0.99 0.54 375.81 * 0.012 0.42 0.23 0.57 0.57 0.42 ***** 0.54 1.49 0.68 375.95 * 0.012 0.52 0.28 0.71 0.71 0.52 ***** 0.68 PIPE NO. 3: 98 LF - 12"CP @ 3.58% OUTLET: 375.27 INLET: 378.78 INTYP: 5 JUNC NO. 3: OVERFLOW-EL: 384.53 BEND: 90 DEG DIA/WIDTH: 4.0 Q-RATIO: 0.01 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.49 0.38 379.16 * 0.012 0.30 0.18 0.37 0.37 0.30 ***** 0.38 0.98 0.58 379.36 * 0.012 0.42 0.25 0.54 0.54 0.42 ***** 0.58 1.47 0.75 379.53 * 0.012 0.52 0.31 0.68 0.68 0.52 ***** 0.75 PIPE NO. 4: 72 LF - 12"CP @ 1.69% OUTLET: 378.78 INLET: 380.00 INTYP: 5 Q(CFS) HW(FT) HW ELEV. * N-FAC DC DN TW DO DE HWO HWI ******************************************************************************* 0.49 0.38 380.38 * 0.012 0.29 0.21 0.38 0.38 0.29 ***** 0.38 0.97 0.56 380.56 * 0.012 0.42 0.30 0.58 0.58 0.42 ***** 0.56 1.46 0.72 380.72 * 0.012 0.52 0.37 0.75 0.75 0.52 ***** 0.72