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Minnesota Stormwater Manual

Difference between revisions of "Runoff coefficients for 5 to 10 year storms"

(Created page with "<table class="sortable"> <tr> <th>land use description</th> <th>Runoff coefficient (C)</th> </tr> <tr> <td colspan="2">Forest</td> </tr> <tr> <td>< 5% slope</td> <td>0.30</td>...")
 
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<font size=3>'''Runoff coefficients for 5- to 10-year storms (Source: Haan et al., 1994)'''</font size><br>
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Link to this [[Runoff coefficients for 5 to 10 year storms|table]]
 
<table class="sortable">
 
<table class="sortable">
 
<tr>
 
<tr>
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<th>land use description</th>
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<th>'''Land use description'''</th>
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<th>Runoff coefficient (C)</th>
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<th>'''Runoff coefficient''' (C)</th>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
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<td colspan="2">Forest</td>
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<td colspan="2">'''Forest'''</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
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</tr>
 
</tr>
 
<tr>
 
<tr>
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<td>X</td>
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<td colspan="2">'''Open space'''</td>
−
<td>X</td>
 
 
</tr>
 
</tr>
 
<tr>
 
<tr>
−
<td>X</td>
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<td>< 2% slope</td>
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<td>X</td>
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<td>0.05 to 0.10</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
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<td>X</td>
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<td>2 to 7% slope</td>
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<td>X</td>
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<td>0.10 to 0.15</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
−
<td>X</td>
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<td>> 7% slope</td>
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<td>X</td>
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<td>0.15 to 0.20</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
−
<td>X</td>
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<td>'''Industrial'''</td>
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<td>X</td>
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<td>0.50 to 0.90</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
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<td>X</td>
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<td colspan="2">'''Residential'''</td>
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<td>X</td>
 
 
</tr>
 
</tr>
 
<tr>
 
<tr>
−
<td>X</td>
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<td>Multi-family</td>
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<td>X</td>
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<td>0.40 to 0.75</td>
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</tr>
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<tr>
 +
<td>Single family</td>
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<td>0.30 to 0.50</td>
 +
</tr>
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<tr>
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<td>Impervious areas</td>
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<td>0.70 to 0.95</td>
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</tr>
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<tr>
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<td colspan="2">'''Row crops'''<sup>1</sup></td>
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</tr>
 +
<tr>
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<td>< 5% slope</td>
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<td>0.50</td>
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</tr>
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<tr>
 +
<td>5 to 10% slope</td>
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<td>0.60</td>
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</tr>
 +
<tr>
 +
<td>> 10% slope</td>
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<td>0.72</td>
 +
</tr>
 +
<tr>
 +
<td colspan="2">'''Pasture'''</td>
 +
</tr>
 +
<tr>
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<td>N 5% slope</td>
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<td>0.30</td>
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</tr>
 +
<tr>
 +
<td>5 to 10% slope</td>
 +
<td>0.36</td>
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</tr>
 +
<tr>
 +
<td>> 10% slope</td>
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<td>0.42</td>
 
</tr>
 
</tr>
 
</table>
 
</table>
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<font size=1><sup>1</sup>For clay and silt loam soils.</font size>
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<noinclude>
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[[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Models, modeling, model applications and examples]]
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[[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Hydrology and geology]]
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</noinclude>

Latest revision as of 13:47, 4 August 2022

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.

Retrieved from "https://stormwater.pca.state.mn.us/index.php?title=Runoff_coefficients_for_5_to_10_year_storms&oldid=60618"

This page was last edited on 4 August 2022, at 13:47.