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Dams

Home    »    Projects    »    Heavy Civil    »    Dams

Projects

  • Marine
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  • Heavy Civil
    • Bridges
    • Dams
      • Bonneville Dam
      • Ice Harbor Navigation Coffer Cells
      • John Day Dam Flow Deflectors
      • Priest Rapids Dam Fish Bypass
      • Wanapum Dam Fish Bypass
Bonneville Dam

Bonneville Dam

Bonneville, Wash.

The project consisted of driving six 10 ft diameter piles down into bedrock. Pile lengths were 136 ft to 200 ft. The piles were drilled out and socketed into bedrock up to 30 ft. Rebar cages were installed full depth and the pile was filled with concrete. Pier caps were constructed on top of the pile. Twelve 7 ft. square precast box girder sections, ranging in length from 84 ft to 180 ft, were fabricated and set in pairs on top of the caps.

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Ice Harbor Navigation Coffer Cells

Ice Harbor Navigation Coffer Cells

Walla Walla, Wash.

Due to nitrogen super saturation that causes trauma to juvenile salmon, General Construction built the deflectors to the spillways which direct the flow of water horizontally to reduce the amount of nitrogen gas entrained in the water.

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John Day Dam Flow Deflectors

John Day Dam Flow Deflectors

Rufus, Ore.

The work included 8,000 cu yd of concrete and all work was coordinated with the operations of a fully functional flood control and power-generating dam. Despite unusually adverse river flows, the work was completed one year ahead of schedule.

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Priest Rapids Dam Fish Bypass

Priest Rapids Dam Fish Bypass

Ephrata, Wash.

This project included the modification of two existing spillways to provide a temporary overflow route. The prototype consists of a series of steel stoplogs spanning the pier noses.

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Wanapum Dam Fish Bypass

Wanapum Dam Fish Bypass

Vantage, Wash.

Features include a design-build concrete foundation poured underwater via tremie and precast boxes. The curved walls and flared floor of the chute were built in a 25 ft deep sheetpile coffercell. Stoplog guides, stoplogs and hoist, vertical and inclined gate guides and gates, and associated hydraulic and electrical controls were included in this project.

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Careers

Apply Now!

GCC is a subsidiary of Kiewit Corporation. This link will direct you to Kiewitjobs.com where you’ll find a comprehensive list of all Kiewit and subsidiary staff opportunities. If you would like to view GCC jobs only, use the search tool to narrow results.

 
Featured Projects
Benicia-Martinez Bridge
Benicia-Martinez Bridge
Oakland, Calif.
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Oakland Bay Bridge Skyway
Oakland Bay Bridge Skyway
San Francisco, Calif.
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Contact GCC

Corporate Office:

33455 6th Avenue South

Federal Way, WA 98003

General Info : info@GCC.com

Apply Now!

 

GCC is a subsidiary of Kiewit Corporation. This link will direct you to Kiewitjobs.com where you’ll find a comprehensive list of all Kiewit and subsidiary staff opportunities. If you would like to view GCC jobs only, use the search tool to narrow results.

 

Featured Projects

Benicia-Martinez Bridge
Benicia-Martinez Bridge
Oakland, Calif.
Read More
Oakland Bay Bridge Skyway
Oakland Bay Bridge Skyway
San Francisco, Calif.
Read More

Contact GCC

Corporate Office :

 33455 6th Avenue South
Federal Way, WA 98003
Tel: (253) 943-4200
Fax: (253) 943-4021 

 

General Info : 

info@GCC.com

 
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