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infiltration_practice_construction [2022/05/13 16:04] – created admininfiltration_practice_construction [2022/05/16 15:16] (current) admin
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 Construction of stormwater practices that rely on infiltration to properly function (e.g. bioretention, infiltration basins) require extra care and oversight. Improper construction will result in failures and costly rebuilds. Recommended techniques for construction and sequencing are provided below, which should be followed to help ensure proper function of these sensitive practices. Construction of stormwater practices that rely on infiltration to properly function (e.g. bioretention, infiltration basins) require extra care and oversight. Improper construction will result in failures and costly rebuilds. Recommended techniques for construction and sequencing are provided below, which should be followed to help ensure proper function of these sensitive practices.
  
-=====Construct infiltration practices only after the site has been vegetated.=====+**Construct infiltration practices only after the site has been vegetated.**
   *Multiple mobilizations may be necessary.   *Multiple mobilizations may be necessary.
-  *If a practice needs to be constructed before vegetation establishment, prevent +  *If a practice needs to be constructed before vegetation establishment, prevent construction runoff from entering the practice, ideally through temporary diversion. 
-construction runoff from entering the practice, ideally through temporary +  *If a sediment trap must be placed in the location of the practice, only excavate as deep as necessary and maintain two (2) feet of cover over final excavation depth.
-diversion. +
-  *If a sediment trap must be placed in the location of the practice, only excavate +
-as deep as necessary and maintain two (2) feet of cover over final excavation +
-depth.+
  
-=====Prevent and alleviate compaction of native soils and backfilled material.=====+**Prevent and alleviate compaction of native soils and backfilled material.**
   *Limit construction traffic in excavation and use only tracked vehicles.   *Limit construction traffic in excavation and use only tracked vehicles.
-  *Excavate to final depth during dry weather and have all materials on site to +  *Excavate to final depth during dry weather and have all materials on site to complete construction prior to forecasted rain. 
-complete construction prior to forecasted rain. +  *Scarify native subgrade with ripper or bucket teeth on the last pass of excavation.
-  *Scarify native subgrade with ripper or bucket teeth on the last pass of +
-excavation.+
  
-=====Work with project engineer to certify materials and construction of practice.=====+**Work with project engineer to certify materials and construction of practice.**
   *Verify native soil meets design specification and take representative sample.   *Verify native soil meets design specification and take representative sample.
   *Provide load tickets for all materials used.   *Provide load tickets for all materials used.
infiltration_practice_construction.1652472261.txt.gz · Last modified: by admin

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