Infrastructure Rebuild

  • Infrastructure Rebuild
  • Infrastructure Rebuild


  • Location: Newington, Connecticut
  • Installed: August, 2012
  • Owner: Connecticut Department of Transportation
  • Engineer: Connecticut Department of Transportation
  • Precast Producer: United Concrete Products Inc.


  • Span: 48 feet
  • Rise: 12 feet
  • Length: 150 feet
  • Cover: 7 feet
  • Live Load: HL-93
  • Skew Angle: None
  • Type: Arch-Box
  • Finish: Plain Concrete


Route 175 Over New Britain
48′ Arch-Box

In an infrastructure rebuild, a deteriorating 100’ span box beam bridge over an abandoned railroad right of way was replaced with precast arch bridge units to make way for a new bus way road between New Britain and Hartford, Connecticut.

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.

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