The delayed new $4bn (£3.1bn), 5km long Mario M. Cuomo Bridge in New York has now opened after fears a parallel bridge could collapse and damage it were allayed.
The new twin-span cable stayed bridge was due to be opened last week, but plans were delayed after it was discovered that its still in place predecessor, the 62 year old Teppan Zee Bridge, had become “destabilised and threatened to fall” on it.
However, a further investigation into the structural stability of the old bridge has allowed the opening of the eastern side of the bridge to go ahead.
Cowi vice president of major projects in North America and engineer-of-record for the new cable-stayed span Don Bergman said: “This is a huge milestone, not just for the project team, but for Cowi overall. As a company we take great pride in our contribution to the development of innovative infrastructure solutions to connect sustainable communities.
“Our experience in design-build delivery was a very real asset on this complex project. Our expertise and innovation in concrete durability and service life design has resulted in a structure we expect to stand the test of time.
“I am very proud of our team and their work on this landmark project.”
The western carriageway, which is separated down the centre from the eastern carriageway, of the bridge opened last year in a temporary traffic configuration.
This comprised four traffic lanes in each direction to allow the design and build team, Tappan Zee Constructors to complete construction of the eastbound half in the footprint of the old bridge at its landings.
Tappan Zee Constructors, is a consortium of design, engineering, and construction firms, including Fluor, American Bridge, Granite Construction, Traylor Bros., HDR, Cowi, URS, and GZA.
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