U.S. DEPARTMENT OF AGRICULTURE SD-ENG-27
NATURAL RESOURCES CONSERVATION SERVICE REV. 01/02
COMPUTATIONS FOR WATER SURFACE PROFILE
Project
Bottom Width, Feet
Side Slopes
Designer
Date
Checker
Date
Cross
Section
Number
Channel
Station
Manning
n
Channel
Bottom
El.
Depth,
feet
Water
Surface
El. (E1)
Kd
Q
S=(Q/Kd)2
L
H1=SL
E2=E1+H1 Ve=Q/A