m
m
Line 10: Line 10:
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td right>< 5% slope</td>
+
<td aligh="right">< 5% slope</td>
 
<td>0.30</td>
 
<td>0.30</td>
 
</tr>
 
</tr>

Revision as of 20:18, 7 March 2013

Runoff coefficients for 5- to 10-year storms (Source: Haan et al., 1994)
Link to this table

Land use description Runoff coefficient (C)
Forest
< 5% slope 0.30
5 to 10% slope 0.35
> 10% slope 0.50
Open space
< 2% slope 0.05 to 0.10
2 to 7% slope 0.10 to 0.15
> 7% slope 0.15 to 0.20
Industrial 0.50 to 0.90
Residential
Multi-family 0.40 to 0.75
Single family 0.30 to 0.50
Impervious areas 0.70 to 0.95
Row crops1
< 5% slope 0.50
5 to 10% slope 0.60
> 10% slope 0.72
Pasture
N 5% slope 0.30
5 to 10% slope 0.36
> 10% slope 0.42

1For clay and silt loam soils.