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→Backfill Granular and Pipes (SPC)
* Curb cut size (width)
* Curb cut size (width)
* Placement of curb cuts on steep slopes or the down slope side of a catchbasin
* Placement of curb cuts on steep slopes or the down slope side of a catchbasin
'''Pre-treatment and Inlet'''<br>
'''Pre-treatment and Inlet'''<br>
Pre-treatment structures are most cost effective when they slow down incoming flows, collect sediment for easy clean out, and release water to the bioretention facility in a non-erosive way. Some pre-treatment structures/strategies include:
Pre-treatment structures are most cost effective when they slow down incoming flows, collect sediment for easy clean out, and release water to the bioretention facility in a non-erosive way. Some pre-treatment structures/strategies include:
* Vegetation: If sized correctly, it works more effectively in areas with more dispersed flow. However, in concentrated flow and sediment areas it might not be the best option. Sediment removal can be more difficult in areas of dense vegetation. An advantage of using vegetation as pre-treatment is that it can be easily integrated into the landscape design.
* Vegetation: If sized correctly, it works more effectively in areas with more dispersed flow. However, in concentrated flow and sediment areas it might not be the best option. Sediment removal can be more difficult in areas of dense vegetation. An advantage of using vegetation as pre-treatment is that it can be easily integrated into the landscape design.
* Concrete curbing
Items to ensure during construction:
*Verify that’s correct pretreatment device (jelly fish, vegetation, curbing, etc.)
*Correct size and location
*Correct elevation and footing
*Tied into the curb? or could happen before the curbing?
*Does it work?
For more information about pre-treatment strategies and their design, visit these page: [[Pretreatment] and [[Pretreatment features]]<br>
'''Soil Media / Filter Media'''<br>
'''Soil Media / Filter Media'''<br>
For small LID facilities, apply soil media in 150-300 mm lifts until desired top elevation of bioretention, bioswale or rain garden area is achieved. Thoroughly wet each lift before adding the next and wail until water has drainer through the soil before adding the next lift. Avoid manual or machine compaction. If possible, equipment should not be operated within the infiltration practice. If required, allow soil to dry before equipment is allowed back into the practice.
For small LID facilities, apply soil media in 150-300 mm lifts until desired top elevation of bioretention, bioswale or rain garden area is achieved. Thoroughly wet each lift before adding the next and wail until water has drainer through the soil before adding the next lift. Avoid manual or machine compaction. If possible, equipment should not be operated within the infiltration practice. If required, allow soil to dry before equipment is allowed back into the practice.