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Supp DrainageRep 093022
SUMMARY Area to Pond 1 to Gay Hill Road Return Period (Years) Type Pre- Developm ent (cfs) Post- Developm ent (cfs) Impact 100 Rate 31.4 27.7 reduced by 3.7 cfs 50 Rate 25.2 22.4 reduced by 2.8 cfs 25 Rate 19.8 18.0 reduced by 1.8 cfs 10 Rate 14.2 13.2 reduced by 1.0 cfs 2 Rate 7.2 7.4*see note Output File E1 P1_DB1 Area from Dennis Drive to Videll Property Return Period (Years) Type Pre- Developm ent (cfs) Post- Developm ent (cfs) Impact 100 Rate 9.8 6.9 reduced by 2.9 cfs 50 Rate 7.7 5.6 reduced by 2.1 cfs 25 Rate 5.9 4.5 reduced by 1.4 cfs 10 Rate 4.2 3.3 reduced by 0.9 cfs 2 Rate 2.0 1.7 reduced by 0.3 cfs Output File E2 P2 * - Further reduction of 1.2 cfs is achieved by inclusion of underground infiltration systems that serve as detention basins for roof runoff on individual lots. Net reduction for 2 year storm is 1.8 cfs. Area to Champion Mortgage to the Northeast Return Period (Years) Type Pre- Developm ent (cfs) Post- Developm ent (cfs) Impact 100 Rate 3.5 3.5 no change 50 Rate 2.8 2.8 no change 25 Rate 2.2 2.2 no change 10 Rate 1.5 1.5 no change 2 Rate 0.7 .8*see note Output File E3 P36 Area to Fernandes Property to East Return Period (Years) Type Pre- Developm ent (cfs) Post- Developm ent (cfs) Impact 100 Rate 3.3 3.1 reduced by 0.2 cfs 50 Rate 2.6 2.5 reduced by 0.1 cfs 25 Rate 2.0 2.0 no change 10 Rate 1.4 1.4 no change 2 Rate 0.7 0.7 no change Output File E4 P35 * - Further reduction of 1.2 cfs is achieved by inclusion of underground infiltration systems that serve as detention basins for roof runoff on individual lots. Net reduction for 2 year storm is 1.8 cfs. Area to Evans Property to East Return Period (Years) Type Pre- Developm ent (cfs) Post- Developm ent (cfs) Impact 100 Rate 31.4 28.4 reduced by 3.0 cfs 50 Rate 25.2 23.2 reduced by 2.0 cfs 25 Rate 19.8 18.9 reduced by 0.9 cfs 10 Rate 14.2 14.2 no change 2 Rate 7.2 7.4*see note Output File E5 P5_DB2 Area to Souza Property to East Return Period (Years) Type Pre- Developm ent (cfs) Post- Developm ent (cfs) Impact 100 Rate 12.8 10.7 reduced by 2.1 cfs 50 Rate 10.1 8.5 reduced by 1.6 cfs 25 Rate 7.9 6.7 reduced by 1.2 cfs 10 Rate 5.5 4.7 reduced by 0.8 cfs 2 Rate 2.6 2.4 reduced by 0.2 cfs Output File E6 P33 * - Further reduction of 1.2 cfs is achieved by inclusion of underground infiltration systems that serve as detention basins for roof runoff on individual lots. Net reduction for 2 year storm is 1.8 cfs. Area to Jenson Property to Southeast Return Period (Years) Type Pre- Developm ent (cfs) Post- Developm ent (cfs) Impact 100 Rate 9.2 9.0 reduced by 0.2 cfs 50 Rate 7.3 7.2 reduced by 0.1 cfs 25 Rate 5.6 5.6 no change 10 Rate 3.9 3.9 no change 2 Rate 1.9 2.0*see note Output File E7 P32 Area to Pond 3 to Marsela Property Southeast Return Period (Years) Type Pre- Developm ent (cfs) Post- Developm ent (cfs) Impact 100 Rate 51.5 47.9 reduced by 3.6 cfs 50 Rate 40.8 38.3 reduced by 2.5 cfs 25 Rate 31.8 30.2 reduced by 0.6 cfs 10 Rate 22.3 21.7 reduced by 0.5cfs 2 Rate 10.8 11.4*see note Output File E8 P8_DB3 * - Further reduction of 1.2 cfs is achieved by inclusion of underground infiltration systems that serve as detention basins for roof runoff on individual lots. Net reduction for 2 year storm is 1.8 cfs. * - Further reduction of 1.2 cfs is achieved by inclusion of underground infiltration systems that serve as detention basins for roof runoff on individual lots. Net reduction for 2 year storm is 1.8 cfs. WinTR-55 Current Data Description --- Identification Data --- User: JJLuczak Date: 9/1/2022 Project: Gay Hill Road - Cornerstone Units: English SubTitle: Updated drainage calcs - Existing Conditions Areal Units: Acres State: Connecticut County: New London NRCC_C Filename: C:\Users\Civil_X\AppData\Roaming\WinTR-55\GayHill_pre2.w55 --- Sub-Area Data --- Name Description Reach Area(ac) RCN Tc ------------------------------------------------------------------------------ E1 Outlet 8 76 0.420 E2 Outlet 2.49 73 0.373 E3 Outlet 0.9 73 0.376 E4 Outlet 0.69 73 0.246 E5 Outlet 13.19 74 0.680 E6 Outlet 3.41 73 0.405 E7 Outlet 2.42 73 0.396 E8 Outlet 16.13 74 0.576 Total area: 47.23 (ac) --- Storm Data -- Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: New London NRCC_C County, CT (NRCS) Rainfall Distribution Type: Type NR_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/1/2022 1:10:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Existing Conditions New London NRCC_C County, Connecticut Storm Data Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: New London NRCC_C County, CT (NRCS) Rainfall Distribution Type: Type NR_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/1/2022 1:10:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Existing Conditions New London NRCC_C County, Connecticut Watershed Peak Table Sub-Area Peak Flow by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) ---------------------------------------------------------------------------------- SUBAREAS E1 7.17 14.15 19.82 25.15 31.42 E2 1.98 4.16 5.97 7.68 9.76 E3 0.72 1.50 2.15 2.78 3.52 E4 0.67 1.41 2.02 2.59 3.28 E5 8.07 16.62 23.71 30.38 38.45 E6 2.61 5.47 7.85 10.11 12.81 E7 1.87 3.92 5.63 7.26 9.19 E8 10.84 22.32 31.81 40.80 51.55 REACHES OUTLET 31.93 65.72 93.58 119.93 151.35 WinTR-55, Version 1.00.10 Page 1 9/1/2022 1:10:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Existing Conditions New London NRCC_C County, Connecticut Hydrograph Peak/Peak Time Table Sub-Area Peak Flow and Peak Time (hr) by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) (hr) (hr) (hr) (hr) (hr) ---------------------------------------------------------------------------------- SUBAREAS E1 7.17 14.15 19.82 25.15 31.42 12.32 12.31 12.29 12.30 12.31 E2 1.98 4.16 5.97 7.68 9.76 12.28 12.29 12.27 12.28 12.27 E3 0.72 1.50 2.15 2.78 3.52 12.29 12.27 12.29 12.27 12.27 E4 0.67 1.41 2.02 2.59 3.28 12.20 12.20 12.19 12.20 12.19 E5 8.07 16.62 23.71 30.38 38.45 12.49 12.49 12.48 12.45 12.45 E6 2.61 5.47 7.85 10.11 12.81 12.31 12.31 12.30 12.30 12.30 E7 1.87 3.92 5.63 7.26 9.19 12.32 12.30 12.28 12.28 12.29 E8 10.84 22.32 31.81 40.80 51.55 12.43 12.40 12.41 12.41 12.40 REACHES OUTLET 31.93 65.72 93.58 119.93 151.35 WinTR-55, Version 1.00.10 Page 1 9/1/2022 1:10:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Existing Conditions New London NRCC_C County, Connecticut Structure Output Table Reach Peak Flow (PF), Storage Volume (SV), Stage (STG) Identifier by Rainfall Return Period Structure Identifier 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr ---------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/1/2022 1:10:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Existing Conditions New London NRCC_C County, Connecticut Sub-Area Summary Table Sub-Area Drainage Time of Curve Receiving Sub-Area Identifier Area Concentration Number Reach Description (ac) (hr) -------------------------------------------------------------------------------- E1 8.00 0.420 76 Outlet E2 2.49 0.373 73 Outlet E3 .90 0.376 73 Outlet E4 .69 0.246 73 Outlet E5 13.19 0.680 74 Outlet E6 3.41 0.405 73 Outlet E7 2.42 0.396 73 Outlet E8 16.13 0.576 74 Outlet Total Area: 47.23 (ac) WinTR-55, Version 1.00.10 Page 1 9/1/2022 1:10:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Existing Conditions New London NRCC_C County, Connecticut Sub-Area Time of Concentration Details Sub-Area Flow Mannings's End Wetted Travel Identifier/ Length Slope n Area Perimeter Velocity Time (ft) (ft/ft) (sq ft) (ft) (ft/sec) (hr) -------------------------------------------------------------------------------- E1 User-provided 0.420 Time of Concentration 0.420 ======== E2 User-provided 0.373 Time of Concentration 0.373 ======== E3 User-provided 0.376 Time of Concentration 0.376 ======== E4 User-provided 0.246 Time of Concentration 0.246 ======== E5 User-provided 0.680 Time of Concentration 0.680 ======== E6 User-provided 0.405 Time of Concentration 0.405 ======== E7 User-provided 0.396 Time of Concentration 0.396 ======== E8 User-provided 0.576 Time of Concentration 0.576 ======== WinTR-55, Version 1.00.10 Page 1 9/1/2022 1:10:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Existing Conditions New London NRCC_C County, Connecticut Sub-Area Land Use and Curve Number Details Sub-Area Hydrologic Sub-Area Curve Identifier Land Use Soil Area Number Group (ac) -------------------------------------------------------------------------------- E1 CN directly entered by user - 8 76 Total Area / Weighted Curve Number 8 76 = == E2 CN directly entered by user - 2.49 73 Total Area / Weighted Curve Number 2.49 73 ==== == E3 CN directly entered by user - .9 73 Total Area / Weighted Curve Number .9 73 == == E4 CN directly entered by user - .69 73 Total Area / Weighted Curve Number .69 73 === == E5 CN directly entered by user - 13.19 74 Total Area / Weighted Curve Number 13.19 74 ===== == E6 CN directly entered by user - 3.41 73 Total Area / Weighted Curve Number 3.41 73 ==== == E7 CN directly entered by user - 2.42 73 Total Area / Weighted Curve Number 2.42 73 ==== == E8 CN directly entered by user - 16.13 74 Total Area / Weighted Curve Number 16.13 74 ===== == WinTR-55, Version 1.00.10 Page 1 9/1/2022 1:10:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Existing Conditions New London NRCC_C County, Connecticut Structure Description - User Entered Surface Height Surface Reach Area @ Above Area @ Pipe Head on Weir Identifier Crest Crest Ht Above Diameter Pipe Length (ac) (ft) (ac) (in) (ft) (ft) -------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/1/2022 1:10:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Existing Conditions New London NRCC_C County, Connecticut Structure Rating Details - Computed WinTR-55, Version 1.00.10 Page 1 9/1/2022 1:10:32 PM WinTR-55 Current Data Description --- Identification Data --- User: JJLuczak Date: 9/1/2022 Project: Gay Hill Road - Cornerstone Units: English SubTitle: Updated drainage calcs - Proposed Conditions Areal Units: Acres State: Connecticut County: New London NRCC_C Filename: C:\Users\Civil_X\AppData\Roaming\WinTR-55\GayHill_post_DB1.w55 --- Sub-Area Data --- Name Description Reach Area(ac) RCN Tc ------------------------------------------------------------------------------ P1 P1DB1 1.81 80 0.300 P1-bypass Outlet 6.43 76 0.436 Total area: 8.24 (ac) --- Storm Data -- Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: New London NRCC_C County, CT (NRCS) Rainfall Distribution Type: Type NR_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Storm Data Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: New London NRCC_C County, CT (NRCS) Rainfall Distribution Type: Type NR_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Watershed Peak Table Sub-Area Peak Flow by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) ---------------------------------------------------------------------------------- SUBAREAS P1 2.36 4.33 5.87 7.32 9.01 P1-bypass 5.65 11.15 15.63 19.84 24.80 REACHES P1DB1 2.36 4.33 5.87 7.32 9.01 Down 1.76 2.22 2.54 2.83 3.18 OUTLET 7.41 13.27 18.03 22.42 27.69 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Hydrograph Peak/Peak Time Table Sub-Area Peak Flow and Peak Time (hr) by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) (hr) (hr) (hr) (hr) (hr) ---------------------------------------------------------------------------------- SUBAREAS P1 2.36 4.33 5.87 7.32 9.01 12.23 12.22 12.23 12.23 12.23 P1-bypass 5.65 11.15 15.63 19.84 24.80 12.33 12.31 12.30 12.31 12.29 REACHES P1DB1 2.36 4.33 5.87 7.32 9.01 12.23 12.22 12.23 12.23 12.23 Down 1.76 2.22 2.54 2.83 3.18 12.37 12.45 12.50 12.55 12.57 OUTLET 7.41 13.27 18.03 22.42 27.69 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Output Table Reach Peak Flow (PF), Storage Volume (SV), Stage (STG) Identifier by Rainfall Return Period Structure Identifier 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr ---------------------------------------------------------------------------------- Reach: P1DB1 Pipe : DB1 8(in) PF (cfs) 1.76 2.22 2.54 2.83 3.18 SV (ac ft) .02 .06 .09 .14 .19 STG (ft) .44 1.10 1.68 2.27 2.98 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Summary Table Sub-Area Drainage Time of Curve Receiving Sub-Area Identifier Area Concentration Number Reach Description (ac) (hr) -------------------------------------------------------------------------------- P1 1.81 0.300 80 P1DB1 P1-bypass 6.43 0.436 76 Outlet Total Area: 8.24 (ac) WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Reach Summary Table Receiving Reach Routing Reach Reach Length Method Identifier Identifier (ft) ---------------------------------------------------------------------- P1DB1 Outlet STRUCTURE(DB1) WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Time of Concentration Details Sub-Area Flow Mannings's End Wetted Travel Identifier/ Length Slope n Area Perimeter Velocity Time (ft) (ft/ft) (sq ft) (ft) (ft/sec) (hr) -------------------------------------------------------------------------------- P1 User-provided 0.300 Time of Concentration 0.300 ======== P1-bypass User-provided 0.436 Time of Concentration 0.436 ======== WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Land Use and Curve Number Details Sub-Area Hydrologic Sub-Area Curve Identifier Land Use Soil Area Number Group (ac) -------------------------------------------------------------------------------- P1 CN directly entered by user - 1.81 80 Total Area / Weighted Curve Number 1.81 80 ==== == P1-bypass CN directly entered by user - 6.43 76 Total Area / Weighted Curve Number 6.43 76 ==== == WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Reach Channel Rating Details Reach Reach Reach Friction Bottom Side Identifier Length Manning's Slope Width Slope (ft) n (ft/ft) (ft) -------------------------------------------------------------------------------- P1DB1 (This reach is a structure: DB1) Reach End Top Friction Identifier Stage Flow Area Width Slope (ft) (cfs) (sq ft) (ft) (ft/ft) -------------------------------------------------------------------------------- P1DB1 (This reach is a structure: DB1) WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Description - User Entered Surface Height Surface Reach Area @ Above Area @ Pipe Head on Weir Identifier Crest Crest Ht Above Diameter Pipe Length (ac) (ft) (ac) (in) (ft) (ft) -------------------------------------------------------------------------------- P1DB1 0.042 3.2 0.084 8 1 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Rating Details - Computed Reach Pool Flows (cfs) @ Pipe Diameter Idendifier Stage Storage Dia #1 Dia #2 Dia #3 (ft) (ac ft) 8in in in -------------------------------------------------------------------------------- DB1 0 0.00 0.000 0.33 0.01 1.676 0.67 0.03 1.935 1.33 0.07 2.370 3.33 0.21 3.351 6.67 0.57 4.537 13.33 1.73 6.269 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:24:29 PM WinTR-55 Current Data Description --- Identification Data --- User: JJLuczak Date: 9/1/2022 Project: Gay Hill Road - Cornerstone Units: English SubTitle: Updated drainage calcs - Proposed Conditions Areal Units: Acres State: Connecticut County: New London NRCC_C Filename: C:\Users\Civil_X\AppData\Roaming\WinTR-55\GayHill_post_DB1.w55 --- Sub-Area Data --- Name Description Reach Area(ac) RCN Tc ------------------------------------------------------------------------------ P2 Outlet 1.61 78 0.373 Total area: 1.61 (ac) --- Storm Data -- Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: New London NRCC_C County, CT (NRCS) Rainfall Distribution Type: Type NR_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:31:09 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Storm Data Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: New London NRCC_C County, CT (NRCS) Rainfall Distribution Type: Type NR_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:31:09 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Watershed Peak Table Sub-Area Peak Flow by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) ---------------------------------------------------------------------------------- SUBAREAS P2 1.71 3.25 4.49 5.63 6.98 REACHES OUTLET 1.71 3.25 4.49 5.63 6.98 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:31:09 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Hydrograph Peak/Peak Time Table Sub-Area Peak Flow and Peak Time (hr) by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) (hr) (hr) (hr) (hr) (hr) ---------------------------------------------------------------------------------- SUBAREAS P2 1.71 3.25 4.49 5.63 6.98 12.29 12.27 12.27 12.28 12.25 REACHES OUTLET 1.71 3.25 4.49 5.63 6.98 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:31:09 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Output Table Reach Peak Flow (PF), Storage Volume (SV), Stage (STG) Identifier by Rainfall Return Period Structure Identifier 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr ---------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:31:09 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Summary Table Sub-Area Drainage Time of Curve Receiving Sub-Area Identifier Area Concentration Number Reach Description (ac) (hr) -------------------------------------------------------------------------------- P2 1.61 0.373 78 Outlet Total Area: 1.61 (ac) WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:31:09 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Time of Concentration Details Sub-Area Flow Mannings's End Wetted Travel Identifier/ Length Slope n Area Perimeter Velocity Time (ft) (ft/ft) (sq ft) (ft) (ft/sec) (hr) -------------------------------------------------------------------------------- P2 User-provided 0.373 Time of Concentration 0.373 ======== WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:31:09 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Land Use and Curve Number Details Sub-Area Hydrologic Sub-Area Curve Identifier Land Use Soil Area Number Group (ac) -------------------------------------------------------------------------------- P2 CN directly entered by user - 1.61 78 Total Area / Weighted Curve Number 1.61 78 ==== == WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:31:09 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Description - User Entered Surface Height Surface Reach Area @ Above Area @ Pipe Head on Weir Identifier Crest Crest Ht Above Diameter Pipe Length (ac) (ft) (ac) (in) (ft) (ft) -------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:31:09 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Rating Details - Computed WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:31:09 PM WinTR-55 Current Data Description --- Identification Data --- User: JJLuczak Date: 9/1/2022 Project: Gay Hill Road - Cornerstone Units: English SubTitle: Updated drainage calcs - Proposed Conditions Areal Units: Acres State: Connecticut County: New London NRCC_C Filename: C:\Users\Civil_X\AppData\Roaming\WinTR-55\GayHill_post_DB1.w55 --- Sub-Area Data --- Name Description Reach Area(ac) RCN Tc ------------------------------------------------------------------------------ P36 Outlet 0.86 76 0.376 Total area: .86 (ac) --- Storm Data -- Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: New London NRCC_C County, CT (NRCS) Rainfall Distribution Type: Type NR_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:40:39 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Storm Data Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: New London NRCC_C County, CT (NRCS) Rainfall Distribution Type: Type NR_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:40:39 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Watershed Peak Table Sub-Area Peak Flow by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) ---------------------------------------------------------------------------------- SUBAREAS P36 0.81 1.60 2.24 2.85 3.56 REACHES OUTLET 0.81 1.60 2.24 2.85 3.56 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:40:39 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Hydrograph Peak/Peak Time Table Sub-Area Peak Flow and Peak Time (hr) by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) (hr) (hr) (hr) (hr) (hr) ---------------------------------------------------------------------------------- SUBAREAS P36 0.81 1.60 2.24 2.85 3.56 12.29 12.29 12.28 12.28 12.28 REACHES OUTLET 0.81 1.60 2.24 2.85 3.56 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:40:39 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Output Table Reach Peak Flow (PF), Storage Volume (SV), Stage (STG) Identifier by Rainfall Return Period Structure Identifier 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr ---------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:40:39 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Summary Table Sub-Area Drainage Time of Curve Receiving Sub-Area Identifier Area Concentration Number Reach Description (ac) (hr) -------------------------------------------------------------------------------- P36 .86 0.376 76 Outlet Total Area: .86 (ac) WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:40:39 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Time of Concentration Details Sub-Area Flow Mannings's End Wetted Travel Identifier/ Length Slope n Area Perimeter Velocity Time (ft) (ft/ft) (sq ft) (ft) (ft/sec) (hr) -------------------------------------------------------------------------------- P36 User-provided 0.376 Time of Concentration 0.376 ======== WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:40:39 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Land Use and Curve Number Details Sub-Area Hydrologic Sub-Area Curve Identifier Land Use Soil Area Number Group (ac) -------------------------------------------------------------------------------- P36 CN directly entered by user - .86 76 Total Area / Weighted Curve Number .86 76 === == WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:40:39 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Description - User Entered Surface Height Surface Reach Area @ Above Area @ Pipe Head on Weir Identifier Crest Crest Ht Above Diameter Pipe Length (ac) (ft) (ac) (in) (ft) (ft) -------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:40:39 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Rating Details - Computed WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:40:39 PM WinTR-55 Current Data Description --- Identification Data --- User: JJLuczak Date: 9/1/2022 Project: Gay Hill Road - Cornerstone Units: English SubTitle: Updated drainage calcs - Proposed Conditions Areal Units: Acres State: Connecticut County: New London NRCC_C Filename: C:\Users\Civil_X\AppData\Roaming\WinTR-55\GayHill_post_DB1.w55 --- Sub-Area Data --- Name Description Reach Area(ac) RCN Tc ------------------------------------------------------------------------------ P35 Outlet 0.6 77 0.246 Total area: .60 (ac) --- Storm Data -- Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: New London NRCC_C County, CT (NRCS) Rainfall Distribution Type: Type NR_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:49:03 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Storm Data Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: New London NRCC_C County, CT (NRCS) Rainfall Distribution Type: Type NR_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:49:03 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Watershed Peak Table Sub-Area Peak Flow by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) ---------------------------------------------------------------------------------- SUBAREAS P35 0.74 1.42 1.97 2.48 3.10 REACHES OUTLET 0.74 1.42 1.97 2.48 3.10 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:49:03 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Hydrograph Peak/Peak Time Table Sub-Area Peak Flow and Peak Time (hr) by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) (hr) (hr) (hr) (hr) (hr) ---------------------------------------------------------------------------------- SUBAREAS P35 0.74 1.42 1.97 2.48 3.10 12.20 12.20 12.19 12.20 12.20 REACHES OUTLET 0.74 1.42 1.97 2.48 3.10 WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:49:03 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Output Table Reach Peak Flow (PF), Storage Volume (SV), Stage (STG) Identifier by Rainfall Return Period Structure Identifier 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr ---------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:49:03 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Summary Table Sub-Area Drainage Time of Curve Receiving Sub-Area Identifier Area Concentration Number Reach Description (ac) (hr) -------------------------------------------------------------------------------- P35 .60 0.246 77 Outlet Total Area: .60 (ac) WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:49:03 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Time of Concentration Details Sub-Area Flow Mannings's End Wetted Travel Identifier/ Length Slope n Area Perimeter Velocity Time (ft) (ft/ft) (sq ft) (ft) (ft/sec) (hr) -------------------------------------------------------------------------------- P35 User-provided 0.246 Time of Concentration 0.246 ======== WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:49:03 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Land Use and Curve Number Details Sub-Area Hydrologic Sub-Area Curve Identifier Land Use Soil Area Number Group (ac) -------------------------------------------------------------------------------- P35 CN directly entered by user - .6 77 Total Area / Weighted Curve Number .6 77 == == WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:49:03 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Description - User Entered Surface Height Surface Reach Area @ Above Area @ Pipe Head on Weir Identifier Crest Crest Ht Above Diameter Pipe Length (ac) (ft) (ac) (in) (ft) (ft) -------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:49:03 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Rating Details - Computed WinTR-55, Version 1.00.10 Page 1 9/1/2022 2:49:03 PM WinTR-55 Current Data Description --- Identification Data --- User: JJLuczak Date: 9/2/2022 Project: Gay Hill Road - Cornerstone Units: English SubTitle: Updated drainage calcs - Proposed Conditions Areal Units: Acres State: Connecticut County: New London NRCC_C Filename: C:\Users\Civil_X\AppData\Roaming\WinTR-55\GayHill_post_DB1.w55 --- Sub-Area Data --- Name Description Reach Area(ac) RCN Tc ------------------------------------------------------------------------------ P5 P5DB2 1.25 82 0.100 P5-Bypass Outlet 10.38 76 0.577 Total area: 11.63 (ac) --- Storm Data -- Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: User-provided custom storm data Rainfall Distribution Type: NRCC_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Storm Data Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: User-provided custom storm data Rainfall Distribution Type: NRCC_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Watershed Peak Table Sub-Area Peak Flow by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) ---------------------------------------------------------------------------------- SUBAREAS P5 2.68 4.70 6.26 7.70 9.38 P5-Bypass 7.84 15.48 21.70 27.56 34.59 REACHES P5DB2 2.68 4.70 6.26 7.70 9.38 Down 1.35 1.48 1.59 1.69 1.80 OUTLET 9.04 16.95 23.29 29.24 36.37 WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Hydrograph Peak/Peak Time Table Sub-Area Peak Flow and Peak Time (hr) by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) (hr) (hr) (hr) (hr) (hr) ---------------------------------------------------------------------------------- SUBAREAS P5 2.68 4.70 6.26 7.70 9.38 12.12 12.12 12.12 12.12 12.12 P5-Bypass 7.84 15.48 21.70 27.56 34.59 12.42 12.42 12.42 12.38 12.39 REACHES P5DB2 2.68 4.70 6.26 7.70 9.38 12.12 12.12 12.12 12.12 12.12 Down 1.35 1.48 1.59 1.69 1.80 12.21 12.29 12.35 12.38 12.43 OUTLET 9.04 16.95 23.29 29.24 36.37 WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Output Table Reach Peak Flow (PF), Storage Volume (SV), Stage (STG) Identifier by Rainfall Return Period Structure Identifier 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr ---------------------------------------------------------------------------------- Reach: P5DB2 Pipe : DB2 6(in) PF (cfs) 1.35 1.48 1.59 1.69 1.80 SV (ac ft) .02 .06 .09 .12 .16 STG (ft) .30 .72 1.11 1.50 1.94 WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Summary Table Sub-Area Drainage Time of Curve Receiving Sub-Area Identifier Area Concentration Number Reach Description (ac) (hr) -------------------------------------------------------------------------------- P5 1.25 0.100 82 P5DB2 P5-Bypass 10.38 0.577 76 Outlet Total Area: 11.63 (ac) WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Reach Summary Table Receiving Reach Routing Reach Reach Length Method Identifier Identifier (ft) ---------------------------------------------------------------------- P5DB2 Outlet STRUCTURE(DB2) WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Time of Concentration Details Sub-Area Flow Mannings's End Wetted Travel Identifier/ Length Slope n Area Perimeter Velocity Time (ft) (ft/ft) (sq ft) (ft) (ft/sec) (hr) -------------------------------------------------------------------------------- P5 User-provided 0.100 Time of Concentration 0.100 ======== P5-Bypass User-provided 0.577 Time of Concentration 0.577 ======== WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Land Use and Curve Number Details Sub-Area Hydrologic Sub-Area Curve Identifier Land Use Soil Area Number Group (ac) -------------------------------------------------------------------------------- P5 CN directly entered by user - 1.25 82 Total Area / Weighted Curve Number 1.25 82 ==== == P5-Bypass CN directly entered by user - 10.38 76 Total Area / Weighted Curve Number 10.38 76 ===== == WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Reach Channel Rating Details Reach Reach Reach Friction Bottom Side Identifier Length Manning's Slope Width Slope (ft) n (ft/ft) (ft) -------------------------------------------------------------------------------- P5DB2 (This reach is a structure: DB2) Reach End Top Friction Identifier Stage Flow Area Width Slope (ft) (cfs) (sq ft) (ft) (ft/ft) -------------------------------------------------------------------------------- P5DB2 (This reach is a structure: DB2) WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Description - User Entered Surface Height Surface Reach Area @ Above Area @ Pipe Head on Weir Identifier Crest Crest Ht Above Diameter Pipe Length (ac) (ft) (ac) (in) (ft) (ft) -------------------------------------------------------------------------------- P5DB2 0.08 5 0.1 6 2 WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:10 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Rating Details - Computed Reach Pool Flows (cfs) @ Pipe Diameter Idendifier Stage Storage Dia #1 Dia #2 Dia #3 (ft) (ac ft) 6in in in -------------------------------------------------------------------------------- DB2 0 0.00 0.000 0.25 0.02 1.333 0.5 0.04 1.414 1 0.08 1.563 2.5 0.21 1.943 5 0.45 2.449 10 1.00 3.231 WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:18:11 PM WinTR-55 Current Data Description --- Identification Data --- User: JJLuczak Date: 9/2/2022 Project: Gay Hill Road - Cornerstone Units: English SubTitle: Updated drainage calcs - Proposed Conditions Areal Units: Acres State: Connecticut County: New London NRCC_C Filename: C:\Users\Civil_X\AppData\Roaming\WinTR-55\GayHill_post_DB2.w55 --- Sub-Area Data --- Name Description Reach Area(ac) RCN Tc ------------------------------------------------------------------------------ P33 Outlet 2.72 75 0.405 Total area: 2.72 (ac) --- Storm Data -- Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: User-provided custom storm data Rainfall Distribution Type: NRCC_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:25:45 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Storm Data Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: User-provided custom storm data Rainfall Distribution Type: NRCC_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:25:45 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Watershed Peak Table Sub-Area Peak Flow by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) ---------------------------------------------------------------------------------- SUBAREAS P33 2.35 4.72 6.67 8.50 10.68 REACHES OUTLET 2.35 4.72 6.67 8.50 10.68 WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:25:45 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Hydrograph Peak/Peak Time Table Sub-Area Peak Flow and Peak Time (hr) by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) (hr) (hr) (hr) (hr) (hr) ---------------------------------------------------------------------------------- SUBAREAS P33 2.35 4.72 6.67 8.50 10.68 12.31 12.29 12.29 12.29 12.29 REACHES OUTLET 2.35 4.72 6.67 8.50 10.68 WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:25:45 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Output Table Reach Peak Flow (PF), Storage Volume (SV), Stage (STG) Identifier by Rainfall Return Period Structure Identifier 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr ---------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:25:45 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Summary Table Sub-Area Drainage Time of Curve Receiving Sub-Area Identifier Area Concentration Number Reach Description (ac) (hr) -------------------------------------------------------------------------------- P33 2.72 0.405 75 Outlet Total Area: 2.72 (ac) WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:25:45 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Time of Concentration Details Sub-Area Flow Mannings's End Wetted Travel Identifier/ Length Slope n Area Perimeter Velocity Time (ft) (ft/ft) (sq ft) (ft) (ft/sec) (hr) -------------------------------------------------------------------------------- P33 User-provided 0.405 Time of Concentration 0.405 ======== WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:25:45 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Land Use and Curve Number Details Sub-Area Hydrologic Sub-Area Curve Identifier Land Use Soil Area Number Group (ac) -------------------------------------------------------------------------------- P33 CN directly entered by user - 2.72 75 Total Area / Weighted Curve Number 2.72 75 ==== == WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:25:45 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Description - User Entered Surface Height Surface Reach Area @ Above Area @ Pipe Head on Weir Identifier Crest Crest Ht Above Diameter Pipe Length (ac) (ft) (ac) (in) (ft) (ft) -------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:25:45 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Rating Details - Computed WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:25:45 PM WinTR-55 Current Data Description --- Identification Data --- User: JJLuczak Date: 9/2/2022 Project: Gay Hill Road - Cornerstone Units: English SubTitle: Updated drainage calcs - Proposed Conditions Areal Units: Acres State: Connecticut County: New London NRCC_C Filename: C:\Users\Civil_X\AppData\Roaming\WinTR-55\GayHill_post_DB2.w55 --- Sub-Area Data --- Name Description Reach Area(ac) RCN Tc ------------------------------------------------------------------------------ P32 Outlet 2.28 75 0.396 Total area: 2.28 (ac) --- Storm Data -- Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: User-provided custom storm data Rainfall Distribution Type: NRCC_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:28:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Storm Data Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: User-provided custom storm data Rainfall Distribution Type: NRCC_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:28:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Watershed Peak Table Sub-Area Peak Flow by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) ---------------------------------------------------------------------------------- SUBAREAS P32 1.99 3.99 5.65 7.20 9.03 REACHES OUTLET 1.99 3.99 5.65 7.20 9.03 WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:28:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Hydrograph Peak/Peak Time Table Sub-Area Peak Flow and Peak Time (hr) by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) (hr) (hr) (hr) (hr) (hr) ---------------------------------------------------------------------------------- SUBAREAS P32 1.99 3.99 5.65 7.20 9.03 12.31 12.28 12.27 12.28 12.29 REACHES OUTLET 1.99 3.99 5.65 7.20 9.03 WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:28:32 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Output Table Reach Peak Flow (PF), Storage Volume (SV), Stage (STG) Identifier by Rainfall Return Period Structure Identifier 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr ---------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:28:33 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Summary Table Sub-Area Drainage Time of Curve Receiving Sub-Area Identifier Area Concentration Number Reach Description (ac) (hr) -------------------------------------------------------------------------------- P32 2.28 0.396 75 Outlet Total Area: 2.28 (ac) WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:28:33 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Time of Concentration Details Sub-Area Flow Mannings's End Wetted Travel Identifier/ Length Slope n Area Perimeter Velocity Time (ft) (ft/ft) (sq ft) (ft) (ft/sec) (hr) -------------------------------------------------------------------------------- P32 User-provided 0.396 Time of Concentration 0.396 ======== WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:28:33 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Land Use and Curve Number Details Sub-Area Hydrologic Sub-Area Curve Identifier Land Use Soil Area Number Group (ac) -------------------------------------------------------------------------------- P32 CN directly entered by user - 2.28 75 Total Area / Weighted Curve Number 2.28 75 ==== == WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:28:33 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Description - User Entered Surface Height Surface Reach Area @ Above Area @ Pipe Head on Weir Identifier Crest Crest Ht Above Diameter Pipe Length (ac) (ft) (ac) (in) (ft) (ft) -------------------------------------------------------------------------------- WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:28:33 PM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Rating Details - Computed WinTR-55, Version 1.00.10 Page 1 9/2/2022 1:28:33 PM WinTR-55 Current Data Description --- Identification Data --- User: JJLuczak Date: 9/20/2022 Project: Gay Hill Road - Cornerstone Units: English SubTitle: Updated drainage calcs - Proposed Conditions Areal Units: Acres State: Connecticut County: New London NRCC_C Filename: C:\Users\Civil_X\AppData\Roaming\WinTR-55\GayHill_post_DB3.w55 --- Sub-Area Data --- Name Description Reach Area(ac) RCN Tc ------------------------------------------------------------------------------ P8 P8DB3 8.75 81 0.374 P8-Bypass Outlet 10.94 74 0.348 Total area: 19.69 (ac) --- Storm Data -- Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: User-provided custom storm data Rainfall Distribution Type: NRCC_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Storm Data Rainfall Depth by Rainfall Return Period 2-Yr 5-Yr 10-Yr 25-Yr 50-Yr 100-Yr 1-Yr (in) (in) (in) (in) (in) (in) (in) -------------------------------------------------------------------------------- 3.35 4.14 4.85 5.99 7.03 8.25 2.8 Storm Data Source: User-provided custom storm data Rainfall Distribution Type: NRCC_C Dimensionless Unit Hydrograph: <standard> WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Watershed Peak Table Sub-Area Peak Flow by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) ---------------------------------------------------------------------------------- SUBAREAS P8 10.76 19.44 26.22 32.54 39.95 P8-Bypass 9.60 19.70 28.00 35.88 45.30 REACHES P8DB3 10.76 19.44 26.22 32.54 39.95 Down 2.04 2.51 2.81 3.09 3.40 OUTLET 11.35 21.72 30.23 38.31 47.90 WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Hydrograph Peak/Peak Time Table Sub-Area Peak Flow and Peak Time (hr) by Rainfall Return Period or Reach 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr Identifier (cfs) (cfs) (cfs) (cfs) (cfs) (hr) (hr) (hr) (hr) (hr) ---------------------------------------------------------------------------------- SUBAREAS P8 10.76 19.44 26.22 32.54 39.95 12.27 12.27 12.28 12.27 12.27 P8-Bypass 9.60 19.70 28.00 35.88 45.30 12.27 12.26 12.25 12.25 12.25 REACHES P8DB3 10.76 19.44 26.22 32.54 39.95 12.27 12.27 12.28 12.27 12.27 Down 2.04 2.51 2.81 3.09 3.40 13.19 13.54 13.72 13.85 14.06 OUTLET 11.35 21.72 30.23 38.31 47.90 WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Output Table Reach Peak Flow (PF), Storage Volume (SV), Stage (STG) Identifier by Rainfall Return Period Structure Identifier 2-Yr 10-Yr 25-Yr 50-Yr 100-Yr ---------------------------------------------------------------------------------- Reach: P8DB3 Pipe : DB3 8(in) PF (cfs) 2.04 2.51 2.81 3.09 3.40 SV (ac ft) .44 .93 1.35 1.74 2.24 STG (ft) .83 1.62 2.23 2.80 3.47 WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Summary Table Sub-Area Drainage Time of Curve Receiving Sub-Area Identifier Area Concentration Number Reach Description (ac) (hr) -------------------------------------------------------------------------------- P8 8.75 0.374 81 P8DB3 P8-Bypass 10.94 0.348 74 Outlet Total Area: 19.69 (ac) WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Reach Summary Table Receiving Reach Routing Reach Reach Length Method Identifier Identifier (ft) ---------------------------------------------------------------------- P8DB3 Outlet STRUCTURE(DB3) WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Time of Concentration Details Sub-Area Flow Mannings's End Wetted Travel Identifier/ Length Slope n Area Perimeter Velocity Time (ft) (ft/ft) (sq ft) (ft) (ft/sec) (hr) -------------------------------------------------------------------------------- P8 User-provided 0.374 Time of Concentration 0.374 ======== P8-Bypass User-provided 0.348 Time of Concentration 0.348 ======== WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Sub-Area Land Use and Curve Number Details Sub-Area Hydrologic Sub-Area Curve Identifier Land Use Soil Area Number Group (ac) -------------------------------------------------------------------------------- P8 CN directly entered by user - 8.75 81 Total Area / Weighted Curve Number 8.75 81 ==== == P8-Bypass CN directly entered by user - 10.94 74 Total Area / Weighted Curve Number 10.94 74 ===== == WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Reach Channel Rating Details Reach Reach Reach Friction Bottom Side Identifier Length Manning's Slope Width Slope (ft) n (ft/ft) (ft) -------------------------------------------------------------------------------- P8DB3 (This reach is a structure: DB3) Reach End Top Friction Identifier Stage Flow Area Width Slope (ft) (cfs) (sq ft) (ft) (ft/ft) -------------------------------------------------------------------------------- P8DB3 (This reach is a structure: DB3) WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Description - User Entered Surface Height Surface Reach Area @ Above Area @ Pipe Head on Weir Identifier Crest Crest Ht Above Diameter Pipe Length (ac) (ft) (ac) (in) (ft) (ft) -------------------------------------------------------------------------------- P8DB3 0.49 2 0.66 8 1 WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM JJLuczak Gay Hill Road - Cornerstone Updated drainage calcs - Proposed Conditions New London NRCC_C County, Connecticut Structure Rating Details - Computed Reach Pool Flows (cfs) @ Pipe Diameter Idendifier Stage Storage Dia #1 Dia #2 Dia #3 (ft) (ac ft) 8in in in -------------------------------------------------------------------------------- DB3 0 0.00 0.000 0.33 0.17 1.676 0.67 0.35 1.935 1.33 0.73 2.370 3.33 2.11 3.351 6.67 5.16 4.537 13.33 14.09 6.269 WinTR-55, Version 1.00.10 Page 1 9/20/2022 10:26:04 AM