Finley Buttes
Regional Landfill
Projects
Finley Buttes
Roosevelt Landfill
Roosevelt, Washington (915 acres)- Preparation of moisture enhancement analysis that utilizes dredge spoils and leachate to increase biodegradation rates; preparation of alternative final cover analysis; design of two MSW lateral expansion areas and two incinerator ash disposal cells; preparation of fill sequencing plans; design of containment berm that enables dredge spoils to be contained and leachate recirculated on top of existing refuse cells; and CQA certifying engineer for over 75 acres of lined area.
Knott Landfill, Phase 11-B Expansion
Bend, Oregon (135 acres) Assistance in obtaining regulatory agency approval for 135-acre MSW landfill expansion; surface and subsurface investigations; preparation of site development plan; design and construction of three MSW refuse cells; assistance in permitting of leachate recirculation system; design of surface water management system and preparation of closure plan.
St. Johns Landfill
Portland, Oregon (220 acres)- Permitting, design and construction of 4,000 scfm landfill gas-to-energy project.
Short Mountain Landfill
Eugene, Oregon (580 acres)- Assistance in obtaining DEQ approval for 43-million cubic yard MSW lateral landfill expansion; preparation of site development plan; preparation of plans, specifications, engineering report, and CQA plan for 18-acre MSW landfill expansion; preparation of fill sequencing plans; and preparation of plans, specifications and assistance during construction of leachate treatment building
Sunrise Park/ Obrist Landfill Closure
Troutdale, Oregon - The Obrist Landfill accepted construction and demolition debris until the late-1980's. After filling was completed, a soil cap was placed over the 16-acre disposal area and Sunrise Park was developed by the City of Troutdale. GFA prepared the closure/post-closure plan for the landfill and assisted in the design and construction of park facilities.
Anchorage Regional Landfill: Cell 1,2, and 3
Anchorage, Alaska (275 acres)- Assistance in obtaining regulatory agency approval for new 275-acre MSW landfill; preparation of comprehensive development plan; design and construction of first three refuse cells; preparation of final grading plan; design of landfill final cover and LFG control system.
Demolition Landfill Closure
Bend, Oregon (52 acres)- Surface and subsurface investigations; permitting; preparation of landfill closure plan; design and construction of 18-acre closure area.
Furnace Creek Landfill
Death Valley, California - The Furnace Creek Landfill Closure Project included closure of 20 acres of landfill which has been in operation from 1976 until 1996. Municipal solid waste, construction, and demolition debris from residents and visitors of Death Valley National Park were accepted at the landfill.
West Hawaii Sanitary Landfill
Waikoloa, Hawaii (300 acres)- Assistance in obtaining regulatory agency approval for new 300-acre MSW landfill; preparation of site development plan; surface and subsurface investigations; preparation of site operating plan; design and construction of first two refuse cells; preparation of final grading plan; design of landfill final cover, surface water management system and LFG control system.
Kekaha Landfill, Phase II Lateral Expansion
Kauai, Hawaii (40 acres)- Assistance in obtaining regulatory agency approval for 40-acre MSW landfill expansion; preparation of site development plan: surface and subsurface investigations; design of 32 acre MSW landfill expansion; and preparation of fill sequencing plans.
Waimanalo Gulch Sanitary Landfill
Oahu, Hawaii
Cathcart Sanitary Landfill
