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HomeMy WebLinkAboutFile Documents.834 W Hallam St.0010.2018 (6).ARBK 100-year 1-hour Storm Event BUI#17031 Project Description 17031-SSA-100yr.SPF Project Options CFS Elevation Modified Rational User-Defined Hydrodynamic YES YES Analysis Options May 01, 2014 00:00:00 May 01, 2014 04:00:00 May 01, 2014 00:00:00 0 days 0 01:00:00 days hh:mm:ss 0 00:05:00 days hh:mm:ss 0 00:05:00 days hh:mm:ss 30 seconds Rainfall Details 100 year(s) Runoff (Dry Weather) Time Step ........................................ Runoff (Wet Weather) Time Step ....................................... Reporting Time Step ........................................................... Routing Time Step .............................................................. Return Period....................................................................... Enable Overflow Ponding at Nodes .................................... Skip Steady State Analysis Time Periods ........................... Start Analysis On ................................................................ End Analysis On ................................................................. Start Reporting On .............................................................. Antecedent Dry Days .......................................................... File Name ........................................................................... Flow Units ........................................................................... Elevation Type .................................................................... Hydrology Method ............................................................... Time of Concentration (TOC) Method ................................ Link Routing Method ........................................................... 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin Summary SN Subbasin Area Weighted Total Total Total Peak Time of ID Runoff Rainfall Runoff Runoff Runoff Concentration Coefficient Volume (ft²)(in)(in)(ft³)(cfs)(days hh:mm:ss) 1 Basin-A 1355 0.600 0.53 0.32 35.7 0.12 0 00:05:00 2 Basin-B 2136 0.740 0.53 0.39 69.4 0.23 0 00:05:00 3 Basin-C 1781 0.510 0.53 0.27 39.9 0.13 0 00:05:00 4 Basin-D 1355 0.960 0.53 0.51 57.1 0.19 0 00:05:00 5 Dev-HallamSt 25500 0.530 0.82 0.44 924.4 1.35 0 00:11:18 6 Pre-DevCombined 6627 0.350 0.80 0.28 153.5 0.24 0 00:10:42 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 Historic Runoff 100-yr Peak Runoff Rates 04/13/2018 100-year 1-hour Storm Event BUI#17031 Node Summary SN Element Element Invert Ground/Rim Initial Surcharge Ponded Peak Max HGL Max Min Time of Total Total Time ID Type Elevation (Max)Water Elevation Area Inflow Elevation Surcharge Freeboard Peak Flooded Flooded Elevation Elevation Attained Depth Attained Flooding Volume Attained Occurrence (ft)(ft)(ft)(ft)(ft²)(cfs)(ft)(ft)(ft)(days hh:mm)(ft³)(min) 1 Dev-Outfall-Alley Outfall 7914.90 0.000 7914.90 2 HallamSt.Outfall 0.00 1.350 0.00 3 Pre-Dev-Outfall Outfall 7914.90 0.240 7914.90 4 WQCV-Drywell Storage Node 7902.40 7915.40 7902.04 0.00 0.670 7906.66 0.00 0.00 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 Proposed Outfall w/ is less than Pre-Developed Historic Runoff 04/13/2018 100-year 1-hour Storm Event BUI#17031 Link Summary SN Element Element From To (Outlet)Length Inlet Outlet Average Diameter or Manning's Peak Design Flow Peak Flow/Peak Flow ID Type (Inlet)Node Invert Invert Slope Height Roughness Flow Capacity Design Flow Velocity Node Elevation Elevation Ratio (ft)(ft)(ft)(%)(in)(cfs)(cfs)(ft/sec) 1 Dev-Outflow Channel WQCV-Drywell Dev-Outfall-Alley 5.00 7896.92 7896.82 2.0000 0.960 0.0300 0.000 5.92 0.00 0.00 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Peak Flow Peak Flow Total Time Depth Depth/Surcharged Total Depth Ratio (ft)(min) 0.04 0.50 0.00 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin Hydrology Subbasin : Basin-A Input Data Area (ft²) .......................................................1355.00 Weighted Runoff Coefficient ........................0.6000 Runoff Coefficient Area Soil Runoff Soil/Surface Description (ft²)Group Coeff. -1355.02 -0.60 Composite Area & Weighted Runoff Coeff.1355.02 0.60 Subbasin Runoff Results Total Rainfall (in) ..........................................0.53 Total Runoff (in) ............................................0.32 Peak Runoff (cfs) .........................................0.12 Rainfall Intensity ...........................................6.320 Weighted Runoff Coefficient ........................0.6000 Time of Concentration (days hh:mm:ss) ......0 00:05:00 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Basin-A 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Basin-B Input Data Area (ft²) .......................................................2136.00 Weighted Runoff Coefficient ........................0.7400 Runoff Coefficient Area Soil Runoff Soil/Surface Description (ft²)Group Coeff. -2136.01 -0.74 Composite Area & Weighted Runoff Coeff.2136.01 0.74 Subbasin Runoff Results Total Rainfall (in) ..........................................0.53 Total Runoff (in) ............................................0.39 Peak Runoff (cfs) .........................................0.23 Rainfall Intensity ...........................................6.320 Weighted Runoff Coefficient ........................0.7400 Time of Concentration (days hh:mm:ss) ......0 00:05:00 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Basin-B 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Basin-C Input Data Area (ft²) .......................................................1781.00 Weighted Runoff Coefficient ........................0.5100 Runoff Coefficient Area Soil Runoff Soil/Surface Description (ft²)Group Coeff. -1780.99 -0.51 Composite Area & Weighted Runoff Coeff.1780.99 0.51 Subbasin Runoff Results Total Rainfall (in) ..........................................0.53 Total Runoff (in) ............................................0.27 Peak Runoff (cfs) .........................................0.13 Rainfall Intensity ...........................................6.320 Weighted Runoff Coefficient ........................0.5100 Time of Concentration (days hh:mm:ss) ......0 00:05:00 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Basin-C 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Basin-D Input Data Area (ft²) .......................................................1355.00 Weighted Runoff Coefficient ........................0.9600 Runoff Coefficient Area Soil Runoff Soil/Surface Description (ft²)Group Coeff. -1355.02 -0.96 Composite Area & Weighted Runoff Coeff.1355.02 0.96 Subbasin Runoff Results Total Rainfall (in) ..........................................0.53 Total Runoff (in) ............................................0.51 Peak Runoff (cfs) .........................................0.19 Rainfall Intensity ...........................................6.320 Weighted Runoff Coefficient ........................0.9600 Time of Concentration (days hh:mm:ss) ......0 00:05:00 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Basin-D 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Dev-HallamSt Input Data Area (ft²) .......................................................25500.00 Weighted Runoff Coefficient ........................0.5300 Runoff Coefficient Area Soil Runoff Soil/Surface Description (ft²)Group Coeff. -25499.98 -0.53 Composite Area & Weighted Runoff Coeff.25499.98 0.53 Subbasin Runoff Results Total Rainfall (in) ..........................................0.82 Total Runoff (in) ............................................0.44 Peak Runoff (cfs) .........................................1.35 Rainfall Intensity ...........................................4.348 Weighted Runoff Coefficient ........................0.5300 Time of Concentration (days hh:mm:ss) ......0 00:11:18 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Dev-HallamSt 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Pre-DevCombined Input Data Area (ft²) .......................................................6627.00 Weighted Runoff Coefficient ........................0.3500 Runoff Coefficient Area Soil Runoff Soil/Surface Description (ft²)Group Coeff. -6627.00 -0.35 Composite Area & Weighted Runoff Coeff.6627.00 0.35 Subbasin Runoff Results Total Rainfall (in) ..........................................0.80 Total Runoff (in) ............................................0.28 Peak Runoff (cfs) .........................................0.24 Rainfall Intensity ...........................................4.472 Weighted Runoff Coefficient ........................0.3500 Time of Concentration (days hh:mm:ss) ......0 00:10:42 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Subbasin : Pre-DevCombined 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Channel Input SN Element Length Inlet Inlet Outlet Outlet Total Average Shape Height Width Manning's Entrance Exit/Bend Additional Initial ID Invert Invert Invert Invert Drop Slope Roughness Losses Losses Losses Flow Elevation Offset Elevation Offset (ft)(ft)(ft)(ft)(ft)(ft)(%)(ft)(ft)(cfs) 1 Dev-Outflow 5.00 7896.92 -5.48 7896.82 -18.08 0.10 2.0000 Parabolic 0.080 10.000 0.0300 0.5000 0.5000 0.0000 0.000 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Channel Results SN Element Peak Time of Design Flow Peak Flow/Peak Flow Travel Peak Flow Peak Flow Total Time Reported ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/Surcharged Condition Occurrence Ratio Total Depth Ratio (cfs)(days hh:mm)(cfs)(ft/sec)(min)(ft)(min) 1 Dev-Outflow 0.000 0 00:00 5.920 0.00 0.00 0.04 0.50 0.00 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Storage Nodes Storage Node : WQCV-Drywell Input Data 7902.40 7915.40 13.00 7902.04 -0.36 0.00 0.00 Infiltration/Exfiltration 8.2700 Storage Area Volume Curves Storage Curve : WQCV Drywell-A4 Stage Storage Storage Area Volume (ft)(ft²)(ft³) 0 25.12 0.000 6 25.12 150.72 6.01 60.93 151.15 13 60.93 577.05 Evaporation Loss ................................................. Exfiltration Rate (in/hr) ......................................... Invert Elevation (ft) ............................................... Max (Rim) Elevation (ft) ....................................... Max (Rim) Offset (ft) ............................................ Initial Water Elevation (ft) ..................................... Initial Water Depth (ft) .......................................... Ponded Area (ft²) ................................................. 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018 100-year 1-hour Storm Event BUI#17031 Storage Node : WQCV-Drywell (continued) Output Summary Results 0.67 0.67 0.00 0.29 7906.66 4.26 7905.89 3.49 0 00:10 0.069 0 0 14026.88 Total Flooded Volume (ac-in) .............................. Total Time Flooded (min) ..................................... Total Retention Time (sec) .................................. Max HGL Elevation Attained (ft) .......................... Max HGL Depth Attained (ft) ............................... Average HGL Elevation Attained (ft) .................... Average HGL Depth Attained (ft) ......................... Time of Max HGL Occurrence (days hh:mm) ...... Total Exfiltration Volume (1000-ft³) ...................... Peak Inflow (cfs) .................................................. Peak Lateral Inflow (cfs) ...................................... Peak Outflow (cfs) ............................................... Peak Exfiltration Flow Rate (cfm) ........................ 923 Cooper Ave., Ste. 201 Glenwood Springs, CO 81601 Boundaries Unlimited Inc. www.bu-inc.com Deric Walter, PE 970.945.5252 04/13/2018