Advanced Design
Specialized tools for specific project types including detention facilities, stormwater BMPs, channel hydraulics, and complex drainage analysis.
36 Calculators
Area Drain Spacing Calculator
Best Hydraulic Section Calculator
Bioretention Underdrain Calculator
Channel Lining Calculator
Channel Transitions Calculator
Cistern Sizing Calculator
Compound Channel Calculator
Critical Depth Calculator
Culvert Outlet Control Calculator
Dry Well Calculator
Energy Dissipator Calculator
Foundation Drain Calculator
Froude Number Calculator
Gradually Varied Flow Calculator
Green Roof Calculator
Hydrograph Convolution Calculator
Infiltration Trench Calculator
Level Pool Routing Calculator
Modified Rational Method Calculator
Muskingum Routing Calculator
Normal Depth Calculator
Outlet Protection Calculator
Outlet Velocity Calculator
Permeable Paver Calculator
Pond Sizing Calculator
Rain Garden Calculator
Rainfall Distribution Calculator
Riprap Sizing Calculator
SCS Triangular Hydrograph Calculator
SCS Unit Hydrograph Calculator
Storage Volume Calculator
Sump Pump Calculator
Vegetated Swale Calculator
Tailwater Analysis Calculator
Trench Drain Calculator
Underground Detention Calculator
Looking for other tools?