PL84-99 Feather River Levee Repairs
The PL84-99 Feather River Levee Repairs is in Sutter County, CA long the right bank of the Feather River. The project consists of removing the existing concrete culver, constructing a 515,000 SF soil-bentonite cutoff wall to depths up to 65 feet, and installing two welded steel pipes over the completed cutoff wall.
Project Details
- Client
- United States Army Corps of Engineers
- Location
- Sutter County, CA
- Start Date
- April 2020
- End Date
- December 2020
- Service
- Cutoff Walls, Dam and Levee Rehabilitation
- Performed As
- Prime
Project Highlights
- Cutoff walls constructed in an embankment using the slurry trenching technique, and were excavated with long-reach excavators
- Soil-bentonite cutoff wall, with depths ranging from 60-70 feet
- Total surface area of 516,000 SF, at 36 inches width
- 114,000 CY of levee degrade; 123,000 CY of levee embankment construction
- Concrete encased pipe and concrete structure installation
