2007 Fort McCoy Bridges

Fort McCoy 1.JPGFort McCoy 2007 Bridges, Fort McCoy, WI

Owner:  Fort McCoy, US DOD, Department of Army
Prime Contractor
Contract Value:  $1,406,000
Completion:  October 2007


Services:

Vista was responsible for clearing the site, demolition and removal of the existing structures, temporary shoring & cofferdams, construction of the new concrete dam & culvert, back-filling, riprap and erosion control, as well as full coordination with Army and all subcontractors

Scope of Project:

Removal and replacement of the four concrete bridges & culverts, including:
•    Bridge 63 – Two cell (8’x8’) cast-in-place concrete culvert under Airfield Range Road and Silver Lake Dam, constructed with two cofferdams, temporary channel and dewatering the site
•    Bridge 70 – Single cell (6’x6’) precast concrete culvert under Tank Road, constructed with temporary channel and dewatering the site


Features & Challenges:


•    environmental control and protection
•    sites accessibility
•    temporary shoring and channels for culverts
•    two cofferdams supporting over 18’ of lake water during the 80 year storm (!)
•    dewatering the culvert sites
•    culvert staged construction with the tank traffic

Vista’s Solution:

Despite the unique challenges Vista delivered successful project on schedule.