Project Overview
A deteriorating 100’ span box beam bridge built in 1980 over an abandoned railroad right of way was replaced to make way for a new busway road between New Britain and Hartford, CT.
Innovative Construction & Design
A three-stage phase demolition plan was developed to allow Route 175 to remain open during construction. Precast arch units were installed under the existing bridge using a self-propelled modular transport (SPMT) vehicle with a special lifting frame.
The new 48’ span accommodates two traffic lanes, a shoulder, and a bike/pedestrian path.
Project Team
Owner: Connecticut Department of Transportation
Engineer: Connecticut Department of Transportation
Precast Producer: United Concrete Products, Inc.
Technical Details
Span: 48 ft
Length: 150 ft
Rise: 12 ft
Cover: 7 ft
Live Load: HL-93
Skew: None
Type: Arch-Box
