| Site Preparation |
Tree & plant protection |
Protection Cost ($/area) x Affected Area |
Removal of existing structures, topsoil removal and stockpiling |
| Clearing & grubbing |
Clearing Cost ($/area) x Affected Area |
Removal of existing structures, topsoil removal and stockpiling |
| Topsoil salvage |
Clearing Cost ($/area) x Affected Area |
Removal of existing structures, topsoil removal and stockpiling |
| Site Formation |
Excavation / grading |
4-ft Depth Excavation Cost ($/acre) x Area (acre) |
Soil & rock fill material, tunneling |
| Hauling material offsite |
Excavation Cost x (% of Material to be hauled away) |
Soil & rock fill material, tunneling |
| Structural Components |
Under-drains |
Under-drain cost ($/lineal foot) x length of device |
Pipes, catch-basins, manholes, valves |
| Inlet structure |
($/structure) or ($/curb cut) |
Pipes, catch-basins, manholes, valves |
| Outlet structure |
($/structure) |
Pipes, catch-basins, manholes, valves |
| Liner |
Liner cost ($/square yard) x area of device) |
Pipes, catch-basins, manholes, valves |
| Site Restoration |
Filter strip |
Sod cost ($/square foot) x filter strip area |
Tree protection, soil amendments, seed bed preparation, trails |
| Soil preparation |
Topsoil or amendment cost ($/acre) x Area (acre) |
Tree protection, soil amendments, seed bed preparation, trails |
| Seeding |
Seeding Cost ($/acre) x Seeded Area (acre) |
Tree protection, soil amendments, seed bed preparation, trails |
| Planting / transplanting |
Planting Cost ($/acre) x Planted Area (acre) |
Tree protection, soil amendments, seed bed preparation, trails |
| Annual Operation, Maintenance, and Inspection |
Debris removal |
Removal Cost ($/acre) x Area (acre) x Frequency |
Vegetation maintenance, cleaning of structures |
| Sediment removal |
Removal Cost ($/acre) x Area (acre) x Frequency |
Vegetation maintenance, cleaning of structures |
| Weed control |
Labor cost ($/hour) x Hours per visit x Frequency |
Vegetation maintenance, cleaning of structures |
| Inspection |
Inspection Cost ($) x Inspection Frequency |
Vegetation maintenance, cleaning of structures |
| Mowing |
Mowing Cost ($) x Mowing Frequency |
Vegetation maintenance, cleaning of structures |