This table shows Cost components for stormwater ponds
(Link to this table)

Implementation Stage Primary Cost Components Basic Cost Estimate Other Considerations
Site Preparation Tree & plant protection Protection Cost ($/acre) x Affected Area (acre) Removal of existing structures, topsoil removal and stockpiling
Topsoil salvage Salvage cost ($/acre) x Affected Area (acre)
Clearing & grubbing Clearing Cost ($/acre) x Affected Area (acre)
Site Formation Excavation / grading 8-ft Depth Excavation Cost ($/acre) x Area (acre) Soil & rock fill material, tunneling
Hauling material offsite Excavation Cost x (% of Material to be hauled away)
Structural Components Inlet structure ($/structure) Pipes, catchbasins, manholes, valves
Outlet structure ($/structure)
Site Restoration Seeding or sodding Seeding Cost ($/acre) x Seeded Area (acre) Tree protection, soil amendments, seed bed preparation, trails
Planting / transplanting Planting Cost ($/acre) x Planted Area (acre)
Annual Operation, Maintenance, and Inspection Debris removal Removal Cost ($/acre) x Area (acre) x Frequency (2 / 1yr) Vegetation maintenance, cleaning of structures
Sediment removal Removal Cost ($/acre) x Area (acre) x Frequency (1 / 5yr)
Gate / valve operation Operation Cost ($) x Operation Frequency (2 / 1 yr)
Inspection Inspection Cost ($) x Inspection Frequency (2 / 1 yr)
Mowing Mowing Cost ($) x Mowing Frequency (4 / 1 yr)

This page was last edited on 3 August 2022, at 20:35.