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[blurb]Construction Steps<br> *Backfill material from outside of the LID facility to avoid compaction and sediment entering the facilities.*Place material to the elevation and thickness as per the design specifications<br>Key Inspection Points<br> *Material arrival to the site: meets specifications as per design, no debris in the aggregate, washed or clean aggregate with little to no fine materials*When placing the storage reservoir material, ensure that no damage occurs to the underdrain utilities.<br> Mistakes to Avoid<br> *Accepting material that does not meet design requirements and specifications*Install material with heavy equipment from the inside of the LID facilityFor more information on the storage reservoir, see the page: [[Reservoir aggregate]]<br>
[blurb]
Key Inspection Points<br> Mistakes to Avoid<br>
'''Curbing'''<br>
add {{ <br>float right | {{ # widget: YouTube | id=nWV2foAEzt0add }}}} <br>
*
→Backfill Granular and Pipes (SPC)
===Backfill Granular and Pipes (SPC)===
===Backfill Granular and Pipes (SPC)===
'''Storage Reservoir'''<br>
'''Storage Reservoir'''<br>
INSERT YOUTUBE LINK: https://www.youtube.com/watch?v=Ng_s2ErvPqk&t=58s <br>
''INSERT YOUTUBE LINK: https://www.youtube.com/watch?v=Ng_s2ErvPqk&t=58s <br>''
The storage reservoir layer holds and directs the stormwater into the underlying/native soils. The LID facilities, if applicable, should be filled with uniformly graded, washed stone (20 mm – 50 mm) that provides 30 to 40% void space.
The storage reservoir layer holds and directs the stormwater into the underlying/native soils. The LID facilities, if applicable, should be filled with uniformly graded, washed stone (20 mm – 50 mm) that provides 30 to 40% void space.
For more information on the storage reservoir, see the page: [[Reservoir aggregate]].
For more information on the storage reservoir, see the page: [[Reservoir aggregate]].
'''Stone Choker Layer'''<br>
'''Stone Choker Layer'''<br>
''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''
Construction Steps<br>
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 not containing any debris. Installation of aggregate choker layer should not be done when frozen.
Follow the construction guidance shown above in the section “Storage reservoir”
For more information on the choker layer, see the page: [[Choker layer]]<br>
For more information on the choker layer, see the page: [[Choker layer]]<br>
'''Curbing'''<br>
"'INSERT VIDEO FROM HAGGERT AVE: \\Hqcvcfs01\cvc2\Watershed Management\Integrated Water Management Implementation\Fletchers Creek SNAP\Haggert Ave Road Retrofit\3 - Photos\Construction Photos\Site Visit_20201120\Riverstone Construction Haggert Ave Inlet_F.mp4''
It is very important to make sure that the contractor responsible for curb construction understands curb cut designs and elevations. This is often a new technique for contractors, and they may not understand the overall concept of water in the gutter line being directed behind the gutter.<br>
It is very important to make sure that the contractor responsible for curb construction understands curb cut designs and elevations. This is often a new technique for contractors and they may not understand the overall concept of water in the gutter line being directed behind the gutter. <br>
Construction Steps:<br>
Construction Steps:
#Place the right forms (rolled curve vs standard) in the inlet location.
#Place the right forms (rolled curve vs standard) in the inlet location.
#Pour concrete.
#Pour concrete.
#Shape the inlet
#Shape the inlet
#Add the river stone on top of the fresh concrete (if applicable)
#Add the river stone on top of the fresh concrete (if applicable)
#Let concrete cure according to its specifications (CSA A23.1-09) and curing time.
#Provide sufficient curing time, according to CSA standard A23.1-09.
Key Inspection Points:<br>
Key Inspection Points:<br>
*When pouring the concrete, making sure that the concrete truck is not inside the LID facility
*Use of proper curb form by sub-contractor.
*Curb type aligns with design.
*Curb cut location, type and dimension aligns with design.
*Designated concrete wash out is in place and away from LID facility.
Mistakes to avoid:<br>
Mistakes to Avoid:
*Elevated curb cuts and reverse slopes (sloping from back of curb towards instead of depressing from gutter line towards the back)
[[File:IMG 0098-1.jpg|thumb|300px|right|Caption]]
*Curb cut width size
*Elevated curb cuts and reverse slopes (sloping from back of curb towards instead of depressing from gutter line towards the back).
*Placement of curb cuts on steep slopes or the down slope side of a catchbasin<br>
*Wrong curb cut width size.
*Use of wrong curb form.
*Concrete wash out within or upstream of LID facility.
*Lack of communication to concrete contractor or ready-mix driver explaining the function and importance of protecting the LID feature.
For more information on curb cuts, see these pages: [[Curb cuts]], [[Curb cuts: Gallery]] and [[Bioretention: Streetscapes]]<br>
For more information on curb cuts, see these pages: [[Curb cuts]], [[Curb cuts: Gallery]] and [[Bioretention: Streetscapes]]<br>