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→Size a bioretention cell for constrained depth
==Size a bioretention cell for constrained depth==
==Size a bioretention cell for constrained depth==
If there is a constraint to the depth (''d<sub>T</sub>'', m) of the practice, calculate the required footprint area (''A<sub>p</sub>'', m<sup>2</sup>), as:
If there is a constraint to the depth (''d<sub>T</sub>'', m) of the practice, calculate the required footprint area (''A<sub>p</sub>'', m<sup>2</sup>), as:
<math>A_{p}=\frac{A_c\times i\times D}{(n\times d_{T})+(f'\times D)}</math>
<math>A_{p}=\frac{A_i\times i\times D}{(n\times d_{T})+(f'\times D)}</math>
{{Plainlist|1=Where:
{{Plainlist|1=Where:
*''A<sub>p</sub>'' = Area of the infiltration practice in m<sup>2</sup>
*''A<sub>p</sub>'' = Area of the infiltration practice in m<sup>2</sup>
*''A<sub>c</sub>'' = Catchment area in m<sup>2</sup>
*''A<sub>i</sub>'' = Catchment impervious area in m<sup>2</sup>
*''D'' = Duration of design storm in hrs
*''D'' = Duration of design storm in hrs
*''i'' = Intensity of design storm in mm/hr
*''i'' = Intensity of design storm in mm/hr