Stormwater Runoff Coefficients

Rational Method runoff coefficients (C values) by land use/surface type and return period, plus SCS/NRCS curve numbers (CN) by hydrologic soil group (A/B/C/D) and land cover/condition — from ASCE MOP 77, FHWA HEC-22, USDA-NRCS TR-55, and NEH-630

Civil Engineering2 sections6 sample rowsKey: method_type

Attributes

land_use

surface_type

description

return_period_yryr

C_mindimensionless

C_typicaldimensionless

C_maxdimensionless

unit

notes

Browse data

rational_C3 rows SCS_curve_number3 rows

Search the full stormwater runoff coefficients dataset with natural language or structured queries.

Search this table