Special Bridge Conditions Legend:R - Former location of relocated bridge. ! - At risk for demolition or destruction.
X - Confirmed demolished or
collapsed. S
- Dismantled and/or in storage. L -
Severe loss of historic integrity due to alteration.
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US-1 Bypass and Railroad (Boston and Maine) Over Piscataqua River in Portsmouth and Kittery: Rockingham County, New Hampshire and York County, Maine, United States
Metal 8 Panel Rivet-Connected Warren Deck Truss, Movable: Vertical Lift (Tower Drive) and Approach Spans: Metal Deck Girder, Movable: Retractile
Length: 2,804 ft.
Main Span: 227 ft.
Roadway: 30 ft.
Main Spans: 1
Built 1940
By: Phoenix Bridge Company of Phoenixville, Pennsylvania
and Harrington and Cortelyou
US-1 Over Piscataqua River in Portsmouth and Kittery: Rockingham County, New Hampshire and York County, Maine, United States
Metal 10 Panel Rivet-Connected Warren Through Truss, Movable: Vertical Lift and Approach Spans: Metal 10 Panel Rivet-Connected Polygonal Warren Through Truss, Fixed
Length: 1,201 ft.
Main Span: 297 ft.
Roadway: 28 ft.
Main Spans: 1
Built 1923
By: American Bridge Company of New York, New York
and J. A. L. Waddell
