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<center>'''Cost Components for Bioretention Practicesperformance'''</center>
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<font size=3>'''Summary of Bioretention Variants for Permeability of Native Soils and Potential Land use Pollutant Loading'''</font size><br>
 
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(Link to this [[Summary of Bioretention Variants for Permeability of Native Soils and Potential Land use Pollutant Loading|table]])
 
 
 
 
 
<table class="sortable" border=2>
 
<table class="sortable" border=2>
 
<tr>
 
<tr>
<th>Implementation Stage</th>
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<th>Bioretention Type<sup>1</sup></th>
<th>Primary Cost Components </th>
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<th>Variant</th>
<th>Basic Cost Estimate</th>
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<th>Underlying Soil Performance Criteria</th>
<th>Other Considerations</th>
 
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<center><td Rowspan="3">Site Preparation</td></center>
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<td>Bioinfiltration<br>(Infiltration/Recharge Facility)</td>
<td>Tree & plant protection</td>
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<td>No underdrain</td>
<td>Protection Cost ($/area) x Affected Area</td>
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<td>Higher recharge potential (facility drain time without underdrain is 48 hours or less)</td>
<td>Removal of existing structures, topsoil removal and stockpiling</td>
 
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Clearing & grubbing</td>
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<td>Biofiltration with underdrain at the bottom<br>(Filtration/Partial Recharge Facility)</td>
<td>Clearing Cost ($/area) x Affected Area</td>
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<td>Underdrain</td>
<td>Removal of existing structures, topsoil removal and stockpiling</td>
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<td>Lower recharge potential (facility drain time without underdrain is > 48 hours)</td>
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Topsoil salvage</td>
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<td>Biofiltration with internal water storage</td>
<td>Clearing Cost ($/area) x Affected Area</td>
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<td>Underdrain</td>
<td>Removal of existing structures, topsoil removal and stockpiling</td>
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<td>Lower recharge potential (facility drain time without underdrain is >48 hours)</td>
 
</tr>
 
</tr>
 
 
<tr>
 
<tr>
<td rowspan="2">Site Formation</td>
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<td>Biofiltration with elevated underdrain<br>(Infiltration/Filtration/Recharge Facility)</td>
<td>Excavation / grading</td>
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<td>Elevated underdrain</td>
<td>4-ft Depth Excavation Cost ($/acre) x Area (acre)</td>
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<td>Higher nutrient loadings and/or quantity control</td>
<td>Soil & rock fill material, tunneling</td>
 
 
</tr>
 
</tr>
 
<tr>
 
<tr>
<td>Hauling material offsite</td>
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<td>Biofiltration with [http://stormwater.pca.state.mn.us/index.php/Liners_for_stormwater_management liner]<br>(Filtration Only Facility)</td>
<td>Excavation Cost x (% of Material to be hauled away)</td>
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<td>Underdrain with liner</td>
<td>Soil & rock fill material, tunneling</td>
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<td>Hot Spot Treatment</td>
</tr>
 
<tr>
 
<td rowspan="4">Structural Components</td>
 
<td>Under-drains</td>
 
<td>Under-drain cost ($/lineal foot) x length of device</td>
 
<td>Pipes, catch-basins, manholes, valves</td>
 
</tr>
 
<tr>
 
<td>Inlet structure</td>
 
<td>($/structure) or ($/curb cut)</td>
 
<td>Pipes, catch-basins, manholes, valves</td>
 
</tr>
 
<tr>
 
<td>Outlet structure</td>
 
<td>($/structure)</td>
 
<td>Pipes, catch-basins, manholes, valves</td>
 
</tr>
 
<tr>
 
<td>Liner</td>
 
<td>Liner cost ($/square yard) x area of device)</td>
 
<td>Pipes, catch-basins, manholes, valves</td>
 
</tr>
 
 
 
 
 
 
 
<tr>
 
<td rowspan="4">Site Restoration</td>
 
<td>Filter strip</td>
 
<td>Sod cost ($/square foot) x filter strip area</td>
 
<td>Tree protection, soil amendments, seed bed preparation, trails</td>
 
</tr>
 
<tr>
 
<td>Soil preparation</td>
 
<td>Topsoil or amendment cost ($/acre) x Area (acre)</td>
 
<td>Tree protection, soil amendments, seed bed preparation, trails</td>
 
</tr>
 
 
 
<tr>
 
<td>Seeding</td>
 
<td>Seeding Cost ($/acre) x Seeded Area (acre)</td>
 
<td>Tree protection, soil amendments, seed bed preparation, trails</td>
 
</tr>
 
 
 
<tr>
 
<td>Planting / transplanting</td>
 
<td>Planting Cost ($/acre) x Planted Area (acre)</td>
 
<td>Tree protection, soil amendments, seed bed preparation, trails</td>
 
 
</tr>
 
</tr>
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</table>
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<font size=1><sup>1</sup>The terminology has been changed from the original manual.  The original Manual terminology is shown in parenthesis. For more information, see [[Bioretention terminology]]
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</font size>
  
 
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<noinclude>
 
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[[Category:Level 3 - General information, reference, tables, images, and archives/Tables/Bioretention]]
 
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</noinclude>
<tr>
 
<td rowspan="5">Annual Operation, Maintenance, and Inspection</td>
 
<td>Debris removal</td>
 
<td>Removal Cost ($/acre) x Area (acre) x Frequency</td>
 
<td>Vegetation maintenance, cleaning of structures</td>
 
</tr>
 
<tr>
 
<td>Sediment removal</td>
 
<td>Removal Cost ($/acre) x Area (acre) x Frequency</td>
 
<td>Vegetation maintenance, cleaning of structures</td>
 
</tr>
 
<tr>
 
<td>Weed control</td>
 
<td>Labor cost ($/hour) x Hours per visit x Frequency</td>
 
<td>Vegetation maintenance, cleaning of structures</td>
 
</tr>
 
<tr>
 
<td>Inspection</td>
 
<td>Inspection Cost ($) x Inspection Frequency</td>
 
<td>Vegetation maintenance, cleaning of structures</td>
 
</tr>
 
<tr>
 
<td>Mowing</td>
 
<td>Mowing Cost ($) x Mowing Frequency</td>
 
<td>Vegetation maintenance, cleaning of structures</td>
 
</tr>
 
 
 
 
 
</table>
 

Latest revision as of 02:52, 15 December 2022

Summary of Bioretention Variants for Permeability of Native Soils and Potential Land use Pollutant Loading
(Link to this table)

Bioretention Type1 Variant Underlying Soil Performance Criteria
Bioinfiltration
(Infiltration/Recharge Facility)
No underdrain Higher recharge potential (facility drain time without underdrain is 48 hours or less)
Biofiltration with underdrain at the bottom
(Filtration/Partial Recharge Facility)
Underdrain Lower recharge potential (facility drain time without underdrain is > 48 hours)
Biofiltration with internal water storage Underdrain Lower recharge potential (facility drain time without underdrain is >48 hours)
Biofiltration with elevated underdrain
(Infiltration/Filtration/Recharge Facility)
Elevated underdrain Higher nutrient loadings and/or quantity control
Biofiltration with liner
(Filtration Only Facility)
Underdrain with liner Hot Spot Treatment

1The terminology has been changed from the original manual. The original Manual terminology is shown in parenthesis. For more information, see Bioretention terminology

This page was last edited on 15 December 2022, at 02:52.