Comparison of Construction Cost Estimator Models to Study Data
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BMP USEPA (1999) As percent of construction cost(💲) Weiss et al. (2005) As percent of construction cost(💲) This study Construction cost converted to 2010 💲 per ft3 of treated water volume)
Constructed Wetlands 0.8-1.7 0.2-2.4 1
Large Wet Detention Basins 0.7-1.4 0.3-3.7 2.
Infiltration Trenches 5.4 6.5-11.5 11.
Bioretention Basins 7.2 10.1-11.3 15.
Pervious Pavement Not reported Not reported 16
Infiltration Basins 1.80 Not reported 21.
Dry Ponds 0.7-1.4 0.3-5.0 Not reported
Sand Filters 4.1-8.2 3.4-16.8 15.