1,559
edits
Changes
Jump to navigation
Jump to search
Line 114:
Line 114:
Line 122:
Line 122:
→Calculate the remaining dimensions
==Calculate the remaining dimensions==
==Calculate the remaining dimensions==
* Step 7: Multiply the depth of each separate water-retaining component layer in the profile of the practice by its corresponding porosity and then sum the total to find the 1 dimensional storage (in mm).
* Step 10: Multiply the depth of each separate water-retaining component layer in the profile of the practice by its corresponding porosity and then sum the total to find the 1 dimensional storage (in mm).
* Step 8: Calculate the required total storage (S<sub>T</sub>, m<sup>3</sup>):
* Step 11: Calculate the required total storage (S<sub>T</sub>, m<sup>3</sup>):
<math>S_{T}=RVC_T\times A_i\times 10</math>
<math>S_{T}=RVC_T\times A_i\times 10</math>
{{Plainlist|1=Where:
{{Plainlist|1=Where:
* 10 is the units correction between m<sup>3</sup> and mm.Ha.}}
* 10 is the units correction between m<sup>3</sup> and mm.Ha.}}
* Step 9. Divide required storage (m<sup>3</sup>) by the 1 dimensional storage (in m) to find the required footprint area (''A<sub>p</sub>'') for the bioretention in m<sup>2</sup>.
* Step 9. Divide required storage (m<sup>3</sup>) by the 1 dimensional storage (in m) to find the required footprint area (''A<sub>p</sub>'') for the bioretention in m<sup>2</sup>.
* Step 10. Calculate the peak [[flow through perforated pipe|flow rate through the perforated pipe]],
* Step 12. Calculate the peak [[flow through perforated pipe|flow rate through the perforated pipe]],
* Step 11. Calculate the peak [[flow through media|flow rate through the filter media]],
* Step 13. Calculate the peak [[flow through media|flow rate through the filter media]],
* Step 12. Determine if downstream [[flow control]] is required to achieve hydrologic objectives.
* Step 14. Determine if downstream [[flow control]] is required to achieve hydrologic objectives.
==Additional calculations==
==Additional calculations==