Swale Storage/ Length Between Ditch Blocks

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Cecil Webb
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1 Swale Storage/ Length Between Ditch Blocks Input: Roadway Grade 1.00 % Front Slope 4 :1 Bottom Width 0 ft Back Slope 3 :1 Swale Depth 1.50 ft Calculations: Cross-Sectional Swale Area = 7.88 ft 2 DITCH BLOCK SPACING DITCH BLOCK TOP AT SHOULDER ELEV. DEPTH Ditch Block Spacing ft Volume Behind One Ditch Block = ft 3 PLAN VIEW Total Volume Per Roadway Section 1, ft 3 (Both Sides of Roadway) DITCH BLOCK ROADWAY GRADE SWALE FLOWLINE PROFILE VIEW 1720 SE 16th Avenue, Bldg. 100, Ocala, FL Page 1 of 7

2 Project: Road A Stormwater Calculations Total Storage Volume Behind Ditch Blocks 7,404 cf Input: ROW Length = ROW Width = Roadway Width = 1, ft ft 20 ft Calculations: Total ROW Area = 58,597 sf = ac Treatment Volume Reqd = 4,883 cf 1" over ROW Area Treatment Volume Provided = 7,404 cf Tillman and Associates Engineering, LLC 1720 SE 16th Ave., Bldg 100, Ocala, Florida of 7

3 Project: Road B Stormwater Calculations Total Storage Volume Behind Ditch Blocks 7,843 cf Input: ROW Length = ROW Width = Roadway Width = 1, ft ft 20 ft Calculations: Total ROW Area = 71,746 sf = ac Treatment Volume Reqd = 5,979 cf 1" over ROW Area Treatment Volume Provided = 7,843 cf Tillman and Associates Engineering, LLC 1720 SE 16th Ave., Bldg 100, Ocala, FL Page 3 of 7

4 Project: Road C Stormwater Calculations Total Storage Volume Behind Ditch Blocks 4,288 cf Input: ROW Length = ROW Width = Roadway Width = ft ft 20 ft Calculations: Total ROW Area = 31,592 sf = ac Treatment Volume Reqd = 2,633 cf 1" over ROW Area Treatment Volume Provided = 4,288 cf 1720 SE 16th Ave., Bldg 100, Ocala, FL Page 4 of 7

5 Maximum Impervious Area Calculation Project: Roadway Length = 3, ft Roadway Width = 50 ft Roadway Impervious = 161,935 sf = ac Total Site Area = acres Maximum Impervious Area = 5% = acres Maximum Lot Impervious Area = acres = 235,246 sf Lot Impervious Calculation Area (ac) % of Total Max. Lot Impervious Area (acres) Max. Lot Impervious Area (sf) Tract % ,002 Tract % ,481 Tract % ,823 Tract % ,810 Tract % ,571 Tract % ,558 Total % , SE 16th Ave., Bldg 100, Ocala, FL Page 5 of 7

6 Project: Road A Culvert 1 Drainage Area 1.96 acres C Value 0.43 Intensity 6.0 in/hr Q p = 5.06 cfs Invert Up ft Invert Down Pipe Size 18" RCP Pipe Length LF Pipe Slope ft/ft Pipe Slope 0.49 % Road Low Point Elev ft See Culvert Master Analysis Culvert Hydraulics Road B Culvert 2 Drainage Area acres C Value 0.33 Intensity 4.8 in/hr Q p = cfs Invert Up ft Invert Down Pipe Size 24" RCP Pipe Length LF Pipe Slope ft/ft Pipe Slope 0.50 % Road Low Point Elev ft See Culvert Master Analysis 1720 SE 16th Ave., Bldg 100, Ocala, FL Page 6 of 7

7 Floodplain Calculations Elevation Fill Volume Cut Volume Net Volume Running (cf) (cf) (cf) Total (cf) ,385-6,385-6, , ,814-4, , , Total 6,287 6, Grading on each culvert end is proposed lower than the minimum floodplain elevation in this area. All excavation between elevation 65 and 69 is totaled at elevation 69. The running total column demonstrates that the at each incremental elevation the result is a net cut with the total resulting cut being 98 cf more than the total fill SE 16th Avenue, Bldg 100, Ocala, Florida Page 7 of 7

8 Culvert Calculator Report Road A Solve For: Headwater Elevation Culvert Summary Allowable HW Elevation ft Headwater Depth/Height 1.01 Computed Headwater Eleva ft Discharge 5.06 cfs Inlet Control HW Elev ft Tailwater Elevation ft Outlet Control HW Elev ft Control Type Outlet Control Grades Upstream Invert ft Downstream Invert ft Length ft Constructed Slope ft/ft Hydraulic Profile Profile CompositePressureProfileM1 Depth, Downstream 1.51 ft Slope Type N/A Normal Depth 0.91 ft Flow Regime Subcritical Critical Depth 0.87 ft Velocity Downstream 2.86 ft/s Critical Slope ft/ft Section Section Shape Circular Mannings Coefficient Section Material Concrete Span 1.50 ft Section Size 18 inch Rise 1.50 ft Number Sections 1 Outlet Control Properties Outlet Control HW Elev ft Upstream Velocity Head 0.14 ft Ke 0.20 Entrance Loss 0.03 ft Inlet Control Properties Inlet Control HW Elev ft Flow Control Unsubmerged Inlet Type Beveled ring, 45 bevels Area Full 1.8 ft² K HDS 5 Chart 3 M HDS 5 Scale A C Equation Form 1 Y untitled.cvm Barrineau Ginn & Associates CulvertMaster v3.1 [ ] 08/14/14 06:33:23 PM Bentley Systems, Inc. Haestad Methods Solution Center Watertown, CT USA Page 1 of 1

9 Culvert Calculator Report Road B Solve For: Headwater Elevation Culvert Summary Allowable HW Elevation ft Headwater Depth/Height 2.02 Computed Headwater Eleva ft Discharge cfs Inlet Control HW Elev ft Tailwater Elevation ft Outlet Control HW Elev ft Control Type Outlet Control Grades Upstream Invert ft Downstream Invert ft Length ft Constructed Slope ft/ft Hydraulic Profile Profile PressureProfile Depth, Downstream 3.23 ft Slope Type N/A Normal Depth N/A ft Flow Regime N/A Critical Depth 1.57 ft Velocity Downstream 6.04 ft/s Critical Slope ft/ft Section Section Shape Circular Mannings Coefficient Section Material Concrete Span 2.00 ft Section Size 24 inch Rise 2.00 ft Number Sections 1 Outlet Control Properties Outlet Control HW Elev ft Upstream Velocity Head 0.57 ft Ke 0.20 Entrance Loss 0.11 ft Inlet Control Properties Inlet Control HW Elev ft Flow Control Submerged Inlet Type Beveled ring, 33.7 bevels Area Full 3.1 ft² K HDS 5 Chart 3 M HDS 5 Scale B C Equation Form 1 Y c:\...\bginn.barry\desktop\castro 182.cvm Barrineau Ginn & Associates CulvertMaster v3.1 [ ] 08/15/14 10:12:35 PM Bentley Systems, Inc. Haestad Methods Solution Center Watertown, CT USA Page 1 of 1

CULVERT DESIGN WITH HY-8

Back to the Basics CULVERT DESIGN WITH HY-8 Purdue University Road School 2006 Your Presenters... Merril Dougherty INDOT, Hydraulics Unit Supervisor David Finley CTE Engineers, Inc. 1 Part One: Culvert