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Bioretention: Construction checklist (view source)
Revision as of 00:08, 5 September 2017
, 7 years agono edit summary
Line 26:
Line 26:
<tr><th colspan =2>Elevations</th></tr>
<tr><td width = "5%"></td><td>Depth of the gravel and invert of the underdrain</td></tr>
<tr><td></td><td>Inverts for inflow and outflow points</td></tr>
<tr><td></td><td><strong>Filter depth?</strong> after biomedia is placed</td></tr>
<tr><td></td><td>Ponding depth provided between the surface of the filter bed and the overflow structure</td></tr>
<tr><td></td><td>Mulch depth</td></tr>
<tr><th colspan =2>Landscaping and Stabilization</th></tr>
<tr><td width = "5%"></td><td>Correct vegetation should be planted</td></tr>
<tr><td></td><td>Pretreatment area should be stabilized</td></tr>
<tr><td></td><td>Drainage area should be stabilized prior to directing water to the bioretention</td></tr>
<tr><th colspan =2>The following items should be checked after the first rainfall event, and adjustments should be made as necessary:</th></tr>
<tr><td width = "5%"></td><td>Outfall protection/energy dissipation at concentrated inflow should be stable</td></tr>
<tr><td></td><td>Flow should not concentrate and should spread evenly over the filter bed</td></tr>
<tr><td></td><td>Ponded water at the surface of the bioretenton facility must drain within 24 hours of the end of the storm event. <br> The biomedia should fully drain within a maximum period of 72 hours</td></tr>
<tr><td></td><td>Excessive sediment accumulation should not be present</td></tr>
</table>
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||
|Mulch composition should be correct
|Mulch composition should be correct
|-
!colspan =2|Elevations
|-
|style="width:30px"|
|Depth of the gravel and invert of the underdrain
|-
||
|Inverts for inflow and outflow points
|-
||
|Filter media depth
|-
||
|Ponding depth provided between the surface of the filter bed and the overflow structure
|-
||
|Mulch depth
|-
!colspan =2|Landscaping and Stabilization
|-
|style="width:30px"|
|Correct vegetation should be planted
|-
||
|Pretreatment area should be stabilized
|-
||
|Drainage area should be stabilized prior to directing water to the bioretention
|-
!colspan =2|The following items should be checked after the first rainfall event, and adjustments should be made as necessary:
|-
|style="width:30px"|
|Outfall protection/energy dissipation at concentrated inflow should be stable
|-
||
|Flow should not concentrate and should spread evenly over the filter bed
|-
||
|Ponded water at the surface of the bioretenton facility must drain within 24 hours of the end of the storm event. <br> The biomedia should fully drain within a maximum period of 72 hours
|-
||
|Excessive sediment accumulation should not be present
|}
|}
[[category:Checklists]]
[[category:Checklists]]
[[category:Construction]]
[[category:Construction]]