The Q Bridge, also known as the Pearl Harbor Memorial Bridge, over the Quinnipaiac River in new Haven, Connecticut was awarded for the Best Use of Innovation by Northeast Association of State Transportation Officials (NASTO).
Connecticut Department of Transportation’s extradosed bridge is the first of its kind in the U.S., and it has shallower cable angles and lower tower heights while maintaining required span length and marine navigational clearances. Considerations such as restricted tower height due to a nearby airport, economy, and a design worthy of the Pearl Harbor Memorial designation were part of the judging criteria.
The 4,200-foot-bridge spans the Quinnipiac River and connects with I-95, I-91 and Route 34. The unique $415 million bridge is a distinctive landmark across the New Haven skyline and will handle 140,000 vehicles daily, improve safety and mobility, and facilitate freight rail activities at one of the busiest intermodal ports in the country.
Extradosed bridges are visually identified by their streamlined profile that features shorter cable towers with cables connecting to part, but not all, of the concrete bridge deck. The cables are flatter than a cable stayed bridge. The result is a gentle arch-like profile, differing from a suspension bridge's sharp peaks and valley profile. There are two other extradosed bridges in the U.S., one in Waco, Texas spanning the Brazos River, and the St. Croix River Bridge connecting Minnesota and Wisconsin.
“America’s Transportation Awards showcase the outstanding transportation projects that improve travel and quality of life in the United States,” said Paul Trombino, AASHTO’s president and director of the Iowa DOT. “Through these awards, we recognize state DOTs for their diligent efforts and highlight how their work helps improve the quality of life and economic prosperity across the country,” Trombino added.