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--- filter_strip [2025/02/11 12:19] – megan_duffy
+++ filter_strip [2025/10/30 16:15] (current) – [Method to Determine Practice Efficiency] theresa_nelson
@@ Line 61: / Line 61: @@
 WinSLAMM must be used to calculate the efficiency of filter strips. The impervious area must be modeled as "directly connected". A dynamic infiltration rate of 0.01 in/hr can be assumed unless a soil texture evaluation or infiltration test indicates a higher infiltration rate is appropriate. Compost may be amended into the soil to improve the infiltration rate to the next soil type (as listed in WinSLAMM). The selected vegetation height and retardance class should be consistent with the expected land use and maintenance.
-:!: WinSLAMM will reduce the efficiency of a filter strip if the ratio of contributing area to filter strip area is greater than 5:1. WinSLAMM also reduces the modeled filter strip flow length based on the longitudinal slope of the filter strip. See the [[http://www.winslamm.com/docs/WinSLAMM%20Model%20Algorithms%20v7.pdf|WinSLAMM Model Algorithms document]] for additional information.
+:!: WinSLAMM will reduce the efficiency of a filter strip if the ratio of contributing area to filter strip area is greater than 5:1. WinSLAMM also reduces the modeled filter strip flow length based on the longitudinal slope of the filter strip. See the [[https://www.winslamm.net/docs/WinSLAMM%20Model%20Algorithms%20v11.pdf|WinSLAMM Model Algorithms document]] for additional information.
 ==References==