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Created page with "400px|thumb|right|The five-step construction process for sub-surface and ground-level LIDs. The construction guidance in this section ap..."
[[File:construction process.jpg|400px|thumb|right|The five-step construction process for sub-surface and ground-level LIDs.]]
The [[construction]] guidance in this section applies to all sub-surface and ground-level LID practices: [[bioretention|bioretention gardens]], [[bioswales]], [[rain gardens]], [[exfiltration trenches]], [[enhanced swales]], [[permeable pavements]], [[infiltration trenches]], [[infiltration chambers]], and [[soakaways]]. In general, this section describes construction and inspection processes for below ground installed materials and infrastructure that are part of the LID practices noted above.
{{TOClimit|2}}
==Overview==
This section gives guidance for project managers, engineers, and contractors on the installation of sub-surface components of LID practices.
==Geotextiles==
{{:Geotextiles: Installation}}
==Underdrains==
{{:Underdrains: Installation}}
==Impermeable liners==
{{:Impermeable liners: Installation}}
==Overflows==
{{:Overflow: Installation}}
==Monitoring wells==
{{:Monitoring wells: Installation}}
==Storage reservoir==
{{:Construction: storage reservoir}}
==Permeable pavement sub-base and base course==
{{:Permeable pavement sub-base and base course}}
==Trench, Chamber, and Perforated Pipe Installation==
{{:Trench, chamber, and perforated pipe: Installation}}
==Stone choker layer==
''INSERT VIDEO: K:\Watershed Management\Integrated Water Management Implementation\Fletchers Creek SNAP\Haggert Ave Road Retrofit\3 - Photos\Construction Overview Presentation\Video--> HaggertAve_Final.MP4''
In LID facilities, a choker layer of ≥ 100 mm depth is recommended to prevent migration of finer filter media into the underlying storage reservoir aggregate. Similar to the storage reservoir material, this aggregate layer should be a washed 5 – 10 mm stone free from fines and debris. Installation of aggregate choker layer should not be done when frozen.
Follow the construction guidance shown above in the section [[Sub-surface components#Storage reservoir|Storage reservoir]]
For more guidance on materials specifications, refer to [[Aggregates]], [[OPSS aggregates]] and ([https://www.roadauthority.com/Standards/?id=a28fdfaf-3bf8-4679-81ca-4e44b2263cf8 Ontario Provincial Standards, 2013]) <ref>Ontario Provincial Standards. 2013. OPSS.PROV.10101 Aggregates - Base, Subbase Select Subgrade, and Backfill Material. https://www.roadauthority.com/Standards/?id=a28fdfaf-3bf8-4679-81ca-4e44b2263cf8</ref>
==Curbing==
{{:Construction: curbing}}
==Pretreatment and inlet==
{{:Construction: pretreatment and inlet}}
==References==
<references/>
The [[construction]] guidance in this section applies to all sub-surface and ground-level LID practices: [[bioretention|bioretention gardens]], [[bioswales]], [[rain gardens]], [[exfiltration trenches]], [[enhanced swales]], [[permeable pavements]], [[infiltration trenches]], [[infiltration chambers]], and [[soakaways]]. In general, this section describes construction and inspection processes for below ground installed materials and infrastructure that are part of the LID practices noted above.
{{TOClimit|2}}
==Overview==
This section gives guidance for project managers, engineers, and contractors on the installation of sub-surface components of LID practices.
==Geotextiles==
{{:Geotextiles: Installation}}
==Underdrains==
{{:Underdrains: Installation}}
==Impermeable liners==
{{:Impermeable liners: Installation}}
==Overflows==
{{:Overflow: Installation}}
==Monitoring wells==
{{:Monitoring wells: Installation}}
==Storage reservoir==
{{:Construction: storage reservoir}}
==Permeable pavement sub-base and base course==
{{:Permeable pavement sub-base and base course}}
==Trench, Chamber, and Perforated Pipe Installation==
{{:Trench, chamber, and perforated pipe: Installation}}
==Stone choker layer==
''INSERT VIDEO: K:\Watershed Management\Integrated Water Management Implementation\Fletchers Creek SNAP\Haggert Ave Road Retrofit\3 - Photos\Construction Overview Presentation\Video--> HaggertAve_Final.MP4''
In LID facilities, a choker layer of ≥ 100 mm depth is recommended to prevent migration of finer filter media into the underlying storage reservoir aggregate. Similar to the storage reservoir material, this aggregate layer should be a washed 5 – 10 mm stone free from fines and debris. Installation of aggregate choker layer should not be done when frozen.
Follow the construction guidance shown above in the section [[Sub-surface components#Storage reservoir|Storage reservoir]]
For more guidance on materials specifications, refer to [[Aggregates]], [[OPSS aggregates]] and ([https://www.roadauthority.com/Standards/?id=a28fdfaf-3bf8-4679-81ca-4e44b2263cf8 Ontario Provincial Standards, 2013]) <ref>Ontario Provincial Standards. 2013. OPSS.PROV.10101 Aggregates - Base, Subbase Select Subgrade, and Backfill Material. https://www.roadauthority.com/Standards/?id=a28fdfaf-3bf8-4679-81ca-4e44b2263cf8</ref>
==Curbing==
{{:Construction: curbing}}
==Pretreatment and inlet==
{{:Construction: pretreatment and inlet}}
==References==
<references/>