503-491-4853

Green Mountain Spillway Bridge Replacement and Concrete Chute Repairs

This project involved two seperate features of work spread out over two phases.

The first phase removed and replaced 200′ of a failing concrete chute and added several corrugated metal culverts to channel nearby spring water into the chute. The first phase provided several challenges such as tight right of way, remote location, cold weather concrete and earthwork, cofferdam, and dewatering next to a wetland inside of a concrete channell with flowing water. Every challenge was met and overcome with success. Heated blankets and tented enclosures with heat were required to combat the 0 degree farenheight lows and below freezing highs encountered in the last weeks of the first phase.

The second phase will improve several features around the dam including new ladders to access the spillway floor, the hoist house roof, electrical upgrades, repairs to the hoist deck concrete and the primary goal of the second phase will be the removal and replacement of the bridge over the spillway.

 

Project Team and Stats:

Location: Heeney, Colorado
Cost: $984,752.00
Start Date: October 2011
Completion Date: June 2012
Owner: Bureau of Reclamation - Billings Montana Office
Engineer: Bureau of Reclamation
MJ Hughes Project Manager: Ryan Nickerson
MJ Hughes Superintendent: Mike Hughes / Jeff Ford
Subcontractors: Stan Miller Excavating, Penhall Concrete Cutting, Everist Materials

 

 

 

 

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