US 1 NE XWAY
US 1 NE XWAY in .7 MI N Of Tobin BR., Suffolk County, Massachusetts received a condition grade of B (71/100). Built in 1956, the bridge carries 138K vehicles daily on US 1 NE XWAY over HWY Orange & Carter ST.
US 1 NE XWAY carries a B on the BridgeSafety Condition Score with 71/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1956 and is now 70 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. US 1 NE XWAY carries an average daily traffic count of 137,500 vehicles, with 6 lane(s) crossing HWY Orange & Carter ST. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
Component Ratings
The riding surface, evaluated for cracking, spalling, and wear
Beams, girders, and trusses that support the deck
Piers, abutments, and foundations below the deck
Bridge Details
About This Bridge
US 1 NE XWAY is a 70-year-old bridge located .7 MI N Of Tobin BR. in Suffolk County, Massachusetts. The bridge carries US 1 NE XWAY over HWY Orange & Carter ST with 6 traffic lanes, handling approximately 138K vehicles per day. Built in 1956 and reconstructed in 2021, the structure spans 309.1 meters.
The bridge received a Condition Grade of B (71/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 8/9 (good), and substructure 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
US 1 NE XWAY has a Condition Score of 71/100 (Grade B). Its deck is rated 7/9, superstructure 8/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
US 1 NE XWAY was built in 1956 and reconstructed in 2021, making it 70 years old. The average bridge age in the United States is 48 years.
US 1 NE XWAY carries approximately 138K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 309.1 meters long and located on US 1 NE XWAY in .7 MI N Of Tobin BR., Suffolk County, Massachusetts.
No, US 1 NE XWAY is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
US 1 NE XWAY is located .7 MI N Of Tobin BR. in Suffolk County, Massachusetts. The bridge carries US 1 NE XWAY over HWY Orange & Carter ST. Its coordinates are 42.401764, -71.037481. It is maintained by State Highway Agency.
US 1 NE XWAY carries US 1 NE XWAY over HWY Orange & Carter ST. The bridge is 309.1 meters long and was built in 1956, with reconstruction in 2021.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.