Facts
- Overview
- Vertical lift bridge over Piscataqua River on US 1 in Portsmouth
- Location
- Portsmouth, Rockingham County, New Hampshire
- Status
- Open to traffic
- History
- Built 1921; rehabilitated 1982
- Design
- Vertical lift
- Dimensions
-
Length of largest span: 302.2 ft.
Total length: 1,201.2 ft.
Deck width: 27.9 ft.
Vertical clearance above deck: 17.7 ft.
- Recognition
- Eligible for the National Register of Historic Places
- Approximate latitude, longitude
- +43.07889, -70.75250 (decimal degrees)
43°04'44" N, 70°45'09" W (degrees°minutes'seconds") - Inventory number
- BH 25017 (Bridgehunter.com ID)
- Inspection (as of 05/2007)
- 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: 6.0 (out of 100) - Average daily traffic (as of 2003)
- 11,000