Idaho Admin. Code r. tit. IDAPA 37, r. 37.03.07, app A
Current through September 2, 2024
Riprap Gradation Using FWS Method
% Finer by Weight (Lbs.) | Minimum Size (Lbs.) | Maximum Size (Lbs.) |
D100 | 1.33 X D75 | 2.0 X D75 |
D75 | 1.0 X D75 | 1.67 X D75 |
D50 | 0.67 X D75 | 1.17 X D75 |
D25 | 0.33 X D75 | 0.77 X D75 |
Do | None | 0.33 X D75 |
Idaho Admin. Code r. tit. IDAPA 37, r. 37.03.07, app A