Facts
- Overview
- Vertical lift bridge over Piscataqua River on US 1 Bypass in Portsmouth
- Location
- Portsmouth, Rockingham County, New Hampshire
- Status
- Open to traffic
- History
- Built 1940; rehabilitated 1991
- Design
- Vertical lift
- Dimensions
-
Length of largest span: 227.0 ft.
Total length: 2,804.3 ft.
Deck width: 29.9 ft.
Vertical clearance above deck: 16.1 ft.
- Recognition
- Eligible for the National Register of Historic Places
- Approximate latitude, longitude
- +43.08472, -70.76167 (decimal degrees)
43°05'05" N, 70°45'42" W (degrees°minutes'seconds") - Inventory number
- BH 25016 (Bridgehunter.com ID)
- Inspection (as of 11/2006)
- Deck condition rating: Poor (4 out of 9)
Superstructure condition rating: Serious (3 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Structurally deficient
Sufficiency rating: 12.8 (out of 100) - Average daily traffic (as of 2004)
- 14,000