- County Of Tuolumne
- Date Completed:
- February 28, 2009
- Jamestown, CA
- Description of Project:
Jamestown landfill is an inactive landfill that was originally closed in 2005. The following years revealed design-related problems that caused failures in the slope areas. These failures required Sukut to perform remediation work and the re-closure of the failed landfill. This project consisted of removal of the existing final cover materials used during the 2005 closure, relocation and compaction of waste materials in order to cut back the slopes, and re-installation of new final cover components, which consisted of earthwork and geosynthetic materials.
The following is a brief description of the work completed:
• On-site mining and crushing of 100,000 cubic yards of material from on-site borrow pit.
• Excavation, loading, and transportation of 45,000 cubic yards of import material from off-site.
• Excavation, relocation, and compaction of 175,000 cubic yards of waste and garbage.
• 2.5 to 1 cut back of slopes.
• Replace the foundation layer and vegetative cover materials salvaged from the existing site.
• Installation of approx. 850,000 square feet of geotextile, geomembrane, and geocomposite materials.