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Drainage Design Manual, Hydrology - Flood Control District of ...

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<strong>Drainage</strong> <strong>Design</strong> <strong>Manual</strong> for Maricopa County<br />

<strong>Hydrology</strong>: Application<br />

Subbasin ID T c hours R hours<br />

S5 0.563 0.363<br />

S6 0.494 0.292<br />

S7 0.470 0.227<br />

S8 0.553 0.390<br />

S9 0.364 0.201<br />

S10 0.326 0.275<br />

S11 1.002 0.632<br />

h. Select the time-area relation for each subbasin.<br />

The majority <strong>of</strong> the land in subbasins S2 and S11 is undeveloped, therefore use the<br />

natural time-area relation. Use the urban time-area relation for all other Clark subbasins.<br />

9-56 August 15, 2013

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