Coweeman Levee Evaluation
Cornforth Consultants provides services for dam, canal and levee owners including site safety inspections, levee rehabilitation design studies, shoreline protection and stabilization design, new embankment design and construction, dam raises and modifications, and emergency response for dam and levee safety evaluations. In the past few years, Cornforth Consultants has completed levee rehabilitation and/or seepage evaluation projects for levees, embankment dams and canal embankments owned by the Corps of Engineers, Cowlitz County Diking Districts, Multnomah County Drainage District, Portland General Electric, City of Portland Water Bureau, and Eugene Water & Electric Board.
| Representative Projects: | ||
| Barney Reservoir Raise | Cowlitz River Levees | |
| St. Johns Levee Bank Stabilization | Swift Canal Failure | |
| Libby Dike Rehabilitation | Scoggins Dam/Hagg Lake Reservoir Feasibility | |
| Services Offered for Reservoirs, Canals and Levees: | ||
| Probable Failure Mode Analysis (PFMA) | Rehabilitation Design | |
| Geologic Hazards | Forensic Failure Analysis | |
| Seismicity/Liquefaction | FEMA Levee Certification Reviews | |
| Shoreline Protection | Embankment Stability Analysis | |
| Geotechnical Instrumentation | Seepage Investigation | |
| Borrow Sources | Cutoff Trenches | |
| Hydrogeology | Embankment Design | |
| Laboratory Testing | Field Explorations | |
| Levee Safety Evaluation | ||