Changes

* Step 16. Determine if downstream [[flow control]] is required to achieve hydrologic objectives.

* Step 16. Determine if downstream [[flow control]] is required to achieve hydrologic objectives.

===Calculating infiltration practice drainage in 1 dimension===

===Calculating infiltration practice drainage time, t assuming 1 dimensional (1D) drainage===

This spreadsheet compares drainage in a single dimension under zero head conditions, mean head conditions and falling head conditions. It provides a more conservative measurement of the drainage time for the purposes of groundwater mounding (where a shorter drainage time causes a greater impact).  

This spreadsheet allows calculation of drainage time assuming one dimensional drainage under zero head conditions, mean head conditions and falling head conditions. It provides a conservative estimate of drainage time for the purposes of groundwater mounding analysis, where shorter drainage times cause a greater impact.  

{{Clickable button|[[Media:Darcy drainage.xlsx|Download drainage time calculator(.xlsx)]]}}

{{Clickable button|[[Media:Darcy drainage.xlsx|Download drainage time calculator(.xlsx)]]}}