Richville Road Bridge
|Contact Person||Lee Krohn,|
Town of Manchester,
This single-span bridge 69 ft. long and 32 ft. 8 in. wide has a concrete deck on steel girders.
The superstructure of the Richville Road Bridge in the Town of Manchester, Vermont, was in poor condition, but the existing abutments were in good enough shape to be reused with only minimal repairs. The Town limited bridge closure time to 14 days and then compared chose bridge prefabrication after comparing costs.
Bridge designers chose total superstructure prefabrication with the Inverset SystemTM constructed off-site and transported to the site on trucks and lifted into place by a crane. Each of three prefabricated units consisted of two rolled beams with a precast reinforced concrete bridge deck. In place, the three units provided a complete superstructure except for the sheet membrane, paving, curb, and railing. Richville Road was closed for only the specified 14 days.
|Other Keywords||total superstructure prefabrication|
|Advantages||Minimized traffic disruption|
|Photo Credits||Vermont Department of Transportation|