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→Finishing Grades: Inlet, Outlet, Biomedia, Plants (SPC)
'''Riprap (Large Stone)'''<br>
'''Large Stone and Riprap'''<br>
Riprap serves as a protective layer to: prevent sediment entering the underlying layers and clogging the LID facility, dissipate stormwater energy, and stabilize the terrain and slope.
Construction Steps:
#Backfill the material from the outside of the LID facility to avoid compaction.
#Ensure the material is being placed to the elevation and thickness to the design requirements.
Key Inspection Points:
*Arrival of material to the site: material meets specifications as per design, no debris in the aggregate and, if possible, washed or clean stone with little to no fine materials in it.
*Placement: material is backfilled to the right depth and elevation.
Common Mistakes to Avoid:
*Use of wrong material that does not meet design specifications. If there are changes in the material, it must be approved by the supervisor or project manager.