Backwater effect on velocity and other parameters

River Flow Velocity & Backwater Profile Calculator

This tool evaluates river flow velocity under backwater effects using Manning’s Equation, Continuity Equation, and GVF profile analysis. Comparison with HEC-RAS expected behavior is also provided.

Channel Type: Rectangular Trapezoidal
Channel Bottom Width (b) in m:
Side Slope (z:H:1V) [for trapezoidal channel]:
Initial Flow Depth before Dam (m):
Backwater Depth near Dam (m):
Channel Bed Slope (S₀):
Backwater Energy Slope near Dam (S_f):
Manning's Roughness Coefficient (n):