Double Duty: Approach Structures

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by Tim Cooper, P.E., Project Manager; FIGG Bridge Engineers Inc.,

Serial Information: Civil Engineering—ASCE, 2019, Vol. 89, Issue 11, Pg. 66-66

Document Type: Feature article

Abstract: The new Sarah Mildred Long Bridge, which connects the cities of Kittery, Maine, and Portsmouth, New Hampshire, features precast, posttensioned concrete, segmental box girder approaches in a stacked configuration with the vehicle spans on top and the railroad spans below.

Subject Headings: Girder bridges | Railroad bridges | Precast concrete | Bridge-vehicle interaction | Urban areas | Post tensioning | Concrete bridges | Post-tensioned concrete | United States | Maine | New Hampshire

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