Commercial stormwater retrofit – bio-retention & outfall — St. Louis County, MO
St. Louis County · 2023
Project summary
An existing commercial property in St. Louis County needed to bring its parking area into stormwater compliance. Kuesel saw-cut and removed asphalt, regraded the area, and built an 840 SF bio-retention basin to MSD standard detail.
Crews also removed an old inlet, set a new storm sewer outfall structure, and prepared the pavement subgrade to ±0.10' so paving could follow.
| Location | St. Louis County, MO |
|---|---|
| Market | Commercial |
| Scope | Asphalt removal, regrading, bio-retention basin, storm outfall, pavement subgrade |
Challenge → approach
This was a retrofit, not a blank site: the basin had to be cut into a working commercial lot. Kuesel removed only the asphalt needed, built the basin to the MSD standard detail, and tied the new outfall and regraded pavement back into what was already there.
Scope delivered
- Asphalt removal
- Site grading
- 840 SF bio-retention basin built to MSD standard detail
- Storm outfall structure
- Inlet removal
- Pavement subgrade
Key quantities
- 840 SF bio-retention basin
- Pavement subgrade to ±0.10'
Services used
Invite Kuesel to bidWhat each service covered
Site Demolition
Structural and site-specific demolition with full waste management and recycling.
Earthwork & Site Grading
Commercial excavation and heavy civil earthmoving for site development, roadways, and industrial pads throughout the St. Louis region.
Water & Sewer Infrastructure
Underground utility construction — water lines, sanitary sewer, storm sewer, and manholes for commercial and industrial site work.