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Cedar Hills Regional Landfill Area 4 Phased Closures, Maple Valley, WA, USA

Planned and managed the procurement, permit acquisition, design and construction of the over $80 million Cedar Hills Area 4 phased Closure. This was the first structured and permitted phased landfill closure in King County that employed a new strategy of not closing the top deck, and enabled the agency to optimize capacity and extend the life of the landfill. Project tasks included – alternate cover capping systems, leachate management system modifications, evaluation of closure/post-closure plans from a constructability and cost-effectiveness perspective, performance of a field test pit program to determine the waste boundary and thickness of the existing intermediate cover, oversight over the construction management consultant team. 


Maple Valley, WA., USA


King County


Owner’s Project Development and Delivery Management for Regional Landfill Master Planning

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