Cost components for stormwater ponds Cost components for stormwater ponds

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)