Multi-Phase Project: Phase

North Fork Spillway Soil Nail Wall

Brayman was subcontracted to install a 5719 SF soil nail wall as part of a spillway expansion project at the North Fork Dam near Black Mountain, NC. Both soil nails and tieback anchors were installed on this wall which served as a slope stabilization measure for construction of a permanent access road on the site.
location
Asheville
,
North Carolina
ESTIMATED VALUE
$555,000
owner
City of Asheville Water Resources Department
Completion date
08/2018
general contractor
Phillips and Jordan
Market
Locks & Dams
Multi-Phase Project: Phase

North Fork Spillway Soil Nail Wall

Brayman was subcontracted to provide specialty geotechnical construction services in support of a spillway expansion project at the North Fork Dam near Asheville, NC. This dam is located at the Black Mountain Reservoir, which provides the water supply to the City of Asheville. Brayman’s scope of work included the installation of a 5,719-square-foot soil nail wall.

The project involved complex geotechnical solutions to stabilize the spillway and ensure its long-term functionality. Reinforcing steep slopes and controlling erosion were required, making the application of soil nailing and shotcrete essential to maintaining structural integrity. We used pressure grouting to install permanent tiebacks, achieving pressures of up to 140 PSI for maximum stability. To improve efficiency, we applied shotcrete to form 21 custom anchor blocks in place, instead of relying on standard precast blocks. This approach allowed for more streamlined block placement and faster tieback testing, significantly enhancing the overall project timeline and performance.

North Fork Spillway Soil Nail Wall

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