Project:
Frank. R Bowerman Landfill – CM/CQA Services for Phases VIIIB-1, VIIIB-2, and VIIIC Cell Expansions, Infrastructure Improvements, and Landslide Remediation
Overview
The Frank R. Bowerman Landfill is a state-of-the-art, Class III, municipal solid waste landfill. Opened in 1990 near Irvine, CA, it is one of the largest landfills in the state and the ninth largest in the U.S. The property spans approximately 725 acres of Irvine hillside with 534 acres allocated for waste disposal. It is permitted for 11,500 tons per day (TPD) maximum with an 8,500 TPD annual average. The landfill has enough projected capacity to serve residents and businesses until approximately 2053.
Location:
County of Orange
Owner / Client:
County of Orange, OC Waste & Recycling
Performance Period:
2008-2018
Services:
- Geotechnical and Hydrogeological Characterization
- Solid Waste Engineering
- Construction Management (CM)
- Construction Quality Assurance (CQA)
- Geotechnical Evaluations
Scope of Services Provided by AES
AES performed Design and CM/CQA services for the East Flank Landslide Remediation, three cell expansion projects, and multiple infrastructure improvement projects.
East Flank Landslide Remediation Design and Construction Support Services – AES performed geotechnical field investigations, design, preparation of bid documents, and construction phase services for this $30M construction project to stabilize a 60-acre landslide complex. The AES Team prepared design documents including design reports, hydrology and hydraulic calculations, stockpile plans, soil processing plans, and plans, specifications, and Engineers Estimate. The AES Team provided technical support for preparation of CEQA documentation, Resource Agency Permit applications and encroachment permit applications. AES provided CM/CQA services for construction including 7.8 million CY of earthwork; over 40,000 linear feet of horizontal drains, buttresses and stabilization fills to mitigate landslides; and construction of stormwater basins and channels.
Phase VIIIB-1, VIIIB-2 and VIIIC Cell Expansion – AES provided CM/CQA services for 3 cell expansions involving canyon bottom and side slope composite liner totaling 58 acres, with a combined construction cost of $52 million. The scope included geologic mapping of cut slopes; monitoring of 6.9 million CY of earthwork; testing for 20,000 CY of low-permeability material, material processing and test pad construction, monitoring and testing of 4.8 million sq. ft. of geosynthetics, monitoring of leachate collection and removal system (LCRS) construction; protective soil cover installation; and drainage structure construction.
Infrastructure Improvements – AES provided CM/CQA services for multiple infrastructure improvement projects including the Bee Canyon Greenery composting facility, west channel improvements, concrete-lined stormwater basins, wetlands basin, access roads, stockpiles, pavement improvements, scale house improvements, emergency repairs, landfill gas system improvements, and installation of inclinometers, piezometers, monitoring wells and LFG probes.
Accomplishments / Commendations
The East Flank Landslide Remediation Project won the CMAA Outstanding Project of the Year Award.