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Revision as of 16:49, 4 August 2022

Stormwater step pool construction inspection checklist.
Link to this table
To access an Excel version of form (for field use), click here.

Project:
Location:
Site Status:
Date:
Time:
Inspector:
Construction Sequence Satisfactory / Unsatisfactory Comments
1. Pre-Construction
Pre-construction meeting
Runoff diverted (Note type of bypass)
Facility area cleared
Soil tested for permeability
Soil tested for phosphorus content (include test method)
Verify site was not overdug
Project benchmark near site
Facility location staked out
Temporary erosion and sediment protection properly installed
2. Excavation
Lateral slopes completely level
Soils not compacted during excavation
Longitudinal slopes within design range
Stockpile location not adjacent to excavation area and stabilized with vegetation and/ or silt fence
Verify stockpile is not causing compaction and that it is not eroding
Was underlying soil ripped or loosened
Size, location, and inverts per plans
Side slopes stable
Groundwater / bedrock verified
3. Check dams
Dimensions per plans
Spacing and grade installed per plans
Materials per specifications
4. Structural Components
Outlets installed pre plans
Underdrain installed to grade
Pretreatment devices installed per plans
Soil bed composition and texture conforms to specifications
Inlets installed per plans
Underdrain installed per plans
5. Vegetation
For native stormwater step pools, plants and materials ordered 6 months prior to construction
For native stormwater step pools, construction planned to allow for adequate planting and establishment of plant community
Complies with planting specs
Topsoil complies with specs in composition and placement
Soil properly stabilized for permanent erosion control
6. Final Inspection
Dimensions per plans
Pretreatment operational
Inlet/outlet operational
Check dams operational
Soil/filter bed permeability verified
Effective stand of vegetation stabilized
Construction generated sediments removed
Contributing watershed stabilized before flow is diverted to the practice
Comments:
Actions to be taken: