Spreadsheet: 94709d1294435735-empty-cells-graph-zero-on-chart-rip-rap-design
Sheet: Riprap Design Summary

 | Project: |  |  |  |  |  |  |  | Name: |  |  |  |  |  |  |  | **Cannot use this form for any riprap in wave regions
 | Location: |  |  |  |  |  |  |  | Date:
 |  |  | Design Summary
 |  | Description:
 |  | Step 1: Calculate the D30 of the [NAME] according to EM 1601
 |  |  |  | Sf = | 1.5 | Safety Factor, must be at least 1.1
 |  |  |  | [NAME]: | AR | Either Angular (AR) or Rounded (RD)
 |  |  |  | Cs = |  | Stability Coefficient for Incipient Failure, D85/D15 = 1.7 to 5.2
 |  |  |  | Channel Type: | DCC | Straight, Outside of Bends (OB), Downstream of Concrete Channel (DCC), or End of Dikes (ED)
 |  |  |  | R = | N/A | Radius of Bend (if necessary)
 |  |  |  | W = | N/A | Width of Water-Surface (if necessary)
 |  |  |  | Cv =
 |  |  |  | Ct = | 1 | 1.0, when layer thickness = 1D100(max) or 1.5D50(max), whichever is greater
 |  |  |  | d (ft) = | 0.3 | Depth to Flow
 |  |  |  | γs (pcf) = | 165 | Must be between 150 to 175 pcf, usually 165 pcf
 |  |  |  | γw (pcf) = | 62.4
 |  |  |  | V (fps) = | 8 | Depth-Averaged Velocity, Vss for Side Slope Riprap
 |  |  |  | g (ft/s/s) = | 32.2
 |  |  |  | Side Slope: | Yes | Yes or No
 |  |  |  | θ = | 18.4 | Slope Angle (deg) (if necessary)
 |  |  |  | φ = | 40 | Angle of Repose of [NAME] (if necessary, normally 40 deg)
 |  |  |  | K1 =
 |  |  |  | D30 = |  | ft
 |  |  |  |  |  | [NAME]
 |  | Step 2: Calculate D50 of the [NAME] according to the FWHA Method
 |  |  |  | K1 =
 |  |  |  | V (fps) =
 |  |  |  | d (ft) =
 |  |  |  | Sf =
 |  |  |  | Gs = | 2.65 | Normally 2.65
 |  |  |  | Csg =
 |  |  |  | Csf =
 |  |  |  | D50, initial = |  | ft
 |  |  |  | D50 = |  | ft
 |  |  |  |  |  | [NAME]
 |  | Step 3: Check to Determine Correct Method to Design Riprap
 |  |  |  | Method to Use:
 |  | Using Isbash Equation to Determine D50 when using EM 1601
 |  |  |  | V (fps) =
 |  |  |  | Turbulence: | High
 |  |  |  | C =
 |  |  |  | γs (pcf) =
 |  |  |  | γw (pcf) =
 |  |  |  | g (ft/s/s) =
 |  |  |  | D50 = |  | ft
 |  |  |  |  |  | [NAME]
 |  | Determine the Gradation for the Riprap and Bedding Layer(s)
 |  |  |  | D50 for Design: |  | ft
 |  |  |  |  |  | [NAME]
 |  |  | [NAME] |  |  |  | [NAME] |  |  |  | Bedding Design Calculated
 |  |  | % Finer | [NAME]. ([NAME]) | Min [NAME]. ([NAME]) |  | ASTM D 6092 R-700 |  |  |  | % Finer | [NAME].   ([NAME]) | Lower Dia.   ([NAME]) |  |  |  | *Remove yellow highlight when values are confirmed with table below
 |  |  |  |  |  |  | % Finer | Upper Dia. ([NAME]) | Lower Dia.  ([NAME]) |  |  |  |  |  |  |  | If D10(min) = |  | Then D90(max) =
 |  |  | 100 |  |  |  |  |  |  |  | 100 |  |  |  |  |  | <0.5 |  | 20
 |  |  | 85 |  |  |  | 100 |  |  |  | 85 |  |  |  |  |  | 0.5-1.0 |  | 25
 |  |  | 50 |  |  |  | 50 |  |  |  | 15 |  |  |  |  |  | 1.0-2.0 |  | 30
 |  |  | 30 |  |  |  | 15 |  |  |  | 0.001 |  |  |  |  |  | 2.0-5.0 |  | 40
 |  |  | 15 |  |  |  | 0.001 |  |  |  | *as per EM 1110-2-2300 |  |  |  |  |  | 5.0-10 |  | 50
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10-50 |  | 60
 |  | Standard Bedding Stone Gradations Considered for Design
 |  |  |  | Percent Finer-Bedding Design 1 |  |  |  |  |  | Percent Finer-Bedding Design 1
 |  |  |  | [NAME] ([NAME]) | ASTM C33-08 No. 1 |  |  |  |  | [NAME] ([NAME]) | ASTM C33-08 No. 2
 |  |  |  |  | Upper % | Lower % |  |  |  |  | Upper % | Lower %
 |  |  |  | 100 |  |  |  |  |  | 100
 |  |  |  | 90 |  |  |  |  |  | 90
 |  |  |  | 75 |  |  |  |  |  | 75
 |  |  |  | 63 |  |  |  |  |  | 63
 |  |  |  | 50 |  |  |  |  |  | 50
 |  |  |  | 37.5 |  |  |  |  |  | 37.5
 |  |  |  | 25 |  |  |  |  |  | 25
 |  |  |  | 19 |  |  |  |  |  | 19
 |  |  |  | 12.5 |  |  |  |  |  | 12.5 |  |  |  |  |  |  |  |  |  |  | D4
 |  |  |  | 9.5 |  |  |  |  |  | 9.5
 |  |  |  | 4.75 |  |  |  |  |  | 4.75
 |  |  |  | 2.36 |  |  |  |  |  | 2.36
 |  |  |  | 2 |  |  |  |  |  | 2
 |  |  |  | 1.4 |  |  |  |  |  | 1.4
 |  |  |  | 1.18 |  |  |  |  |  | 1.18
 |  | Determine the Thickness of the Riprap and Bedding Layers
 |  |  | [NAME] |  |  |  |  |  | Bedding Layer(s) Thickness
 |  |  |  |  | D100(max) = |  | [NAME] |  |  | # of Bedding Layers: | 1
 |  |  |  |  |  |  | ft |  |  | Note:
 |  |  |  |  | 1.5D50(max) = |  | [NAME] |  |  | Multi Layer Thickness = |  | in
 |  |  |  |  |  |  | ft |  |  | Using Geotextile: | Yes | Yes or No
 |  |  |  |  | Ruling Thickness = |  | ft |  |  | Thickness w/ Geotextile = |  | in | Min 9" Layer
 |  |  |  |  | Placed Under Water: | No | Yes or No
 |  |  |  |  | Adj Factor = |  |  |  |  | Thickness of Each Layer = |  | in
 |  |  |  |  | [NAME] = |  | ft
 |  |  |  |  |  |  | in
 |  |  |  |  | Riprap Design Thickness = |  | in |  |  | Total Bedding Thickness = |  | in |  |  |  |  | *Be sure to clarify here if there is a geotextile or multiple bedding layers
 |  |  | [NAME]: |  |  |  |  |  | Bedding Layer: