Runoff Coefficient

The assignment of the runoff coefficient (C) is somewhat subjective. At the time the runoff producing rainfall occurs, the coefficient varies with topography, land use, vegetal cover, soil type and moisture content of the soil. In selecting the runoff coefficient, consider the future characteristics of the watershed. If land use varies within a watershed, you must consider watershed segments individually, and you can calculate a weighted runoff coefficient value.

Glossary Term Name

Legacy NID


Legacy VID