Scour / Anti‑Scour Depth & Velocity – Multi‑Formula Tool

Quick‑check calculator for general scour depth and velocity thresholds around headworks,
using several classic formulas (Lacey, USBR/Blench, Izbash, Shields). Units: SI (m, s, m³/s, N/m²).

1. Calculations Formula & Inputs

Select a formula family and then provide the required inputs for that formula.
Change the formula here. Inputs below will update automatically.
General scour depth Foundation embedment check Velocity threshold