Civil Engineering Resources

Manning Pipe Calculator (Beta)

Gravity-flow calculator for circular pipes. Includes generation of "printable" formatted sheet, and all work/calculations shown for easy verification.

Trapezoidal Channel Calculator (Beta)

Manning calculator for trapezoidal open channels. Includes generation of "printable" formatted sheet, and all work/calculations shown for easy verification. Can solve for Q, depth, slope, or channel bottom width.

Irregular Channel Calculator (Coming Soon)

Manning calculator for irregular open channels. Ability to provide unique "non-trapezoidal" channel cross sections. Includes generation of "printable" formatted sheet, and all work/calculations shown for easy verification. Can solve for Q, depth, or slope with independent "n" values for each channel segment.