Summary of BMP Construction Costs from Estimator Models
Link to this table
BMP Construction cost converted to 2010 💲 USEPA (1999) per ft3 of treated water volume Construction cost converted to 2010 💲 per ft3 of treated water volume C = Cost(💲) (2003)

X = size of

watershed(acre)
Constructed Wetlands 0.80-1.70 0.20-2.40 C = 3,852X0.484
Wet Detention Basins 0.70-1.40 0.30-3.70 C = 13,909X0.672
Infiltration Trenches 5.40 6.50-11.50 Not reported
Bioretention Basins 7.20 10.10-11.30 C = 10,162X1.088
Infiltration Basins 1.80 Not reported Not reported
Dry Ponds 0.70-1.40 0.30-5.00 Not reported
Sand Filters 4.10-8.20 3.40-16.80 C = 47,888X0.882