Difference between revisions of "Cost components for stormwater ponds"
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<center>'''This table shows Cost components for stormwater ponds'''</center> | <center>'''This table shows Cost components for stormwater ponds'''</center> | ||
(Link to this [[Cost components for stormwater ponds|table]])<br> | (Link to this [[Cost components for stormwater ponds|table]])<br> | ||
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| − | <td rowspan= | + | <td rowspan=2>Site Formation</td> |
<td>Excavation / grading</td> | <td>Excavation / grading</td> | ||
<td>8-ft Depth Excavation Cost ($/acre) x Area (acre)</td> | <td>8-ft Depth Excavation Cost ($/acre) x Area (acre)</td> | ||
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<td>Excavation Cost x (% of Material to be hauled away)</td> | <td>Excavation Cost x (% of Material to be hauled away)</td> | ||
</tr> | </tr> | ||
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<tr> | <tr> | ||
<td rowspan=2>Structural Components</td> | <td rowspan=2>Structural Components</td> | ||
Revision as of 21:13, 15 February 2013
(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 ($) x Operation Frequency (2 / 1 yr) | ||
| Inspection | |||
| Mowing | Mowing Cost ($) x Mowing Frequency (4 / 1 yr) |