Belews Creek Structural Fill Cap
Coal ash structural fill and capping system
Quick Facts
Location
Stokes County, North Carolina
Role
Prime Contractor
Completion Date
October 2012
Project Overview
The Belews Creek Steam Station is a two-unit coal-fired generating facility, one of Duke Energy’s largest coal-burning power plants in the Carolinas. Cooling water for the station is obtained from Belews Lake, a man-made feature created when the station was constructed in the early 1970s.
Project Highlights
60,000
CY of Overburden Material
83,000
CY of Fly Ash From the Site
90,000
CY of Fly Ash at the Structural Fill Area
931K+
SF of Liner
905K+
SF of Geosynthetic Drainage Layer
75,000
CY of Soil Cover
10,600
LF of Toe and Interceptor Drains
67,000
SY of Blanket and Ditch Matting
32
Acres of Land Seeded
10,400
SYSY For Access Roads
31,489
Man-Hours With 0 Lost-Time Accidents
Phillips Contribution
Phillips was contracted to complete the closure of a 22-acre beneficial reuse fly ash structural fill area located at the Belews Creek Steam Station. After removing overburden material, Phillips transported fly ash from the site to the Craig Road Fly Ash Landfill located near the station and relocated fly ash at the structural fill area. Closure activities included installation of a 40 mil linear low-density polyethylene liner, a geosynthetic drainage layer, a 24” protective soil cover, and toe and interceptor drains. The remaining fly ash fill at the site was regraded to comply with required slope and grade specifications.
Phillips also installed erosion control blankets and ditch matting, seeded acres of land, constructed aggregate bases for access roads, and constructed a beneficial use parking/storage area on top of the closure area. The owner realized significant project cost savings as a result of Phillips' effective management of the existing overburden material, resulting in less fly ash being hauled to the Craig Road Fly Ash Landfill than was initially planned.
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