Facts
- Overview
- Through truss bridge over Mystic River on Northbound US 1 in Boston
- Location
- Chelsea, Suffolk County, Massachusetts
- Status
- Open to traffic
- History
- Built 1950
- Design
- Through truss
- Dimensions
-
Length of largest span: 800.9 ft.
Total length: 1,524.0 ft.
Deck width: 36.1 ft.
Vertical clearance above deck: 16.0 ft.
- Approximate latitude, longitude
- +42.38361, -71.04861 (decimal degrees)
42°23'01" N, 71°02'55" W (degrees°minutes'seconds") - Approximate UTM coordinates
- 19/331358/4694402 (zone/easting/northing)
- USGS topographic map
- Boston North
- Inventory number
- BH 19463 (Bridgehunter.com ID)
- Inspection (as of 02/2006)
- Deck condition rating: Fair (5 out of 9)
Superstructure condition rating: Satisfactory (6 out of 9)
Substructure condition rating: Fair (5 out of 9)
Appraisal: Functionally obsolete
Sufficiency rating: 44.8 (out of 100) - Average daily traffic (as of 1997)
- 35,600