I 93 /US1/ST3
I 93 /US1/ST3 in 2 MI S Of JCT I90&I93, Suffolk County, Massachusetts received a condition grade of B (61/100). Built in 1958, the bridge carries 188K vehicles daily on I 93 /US1/ST3 over RR Csx Spur.
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
I 93 /US1/ST3 is a 68-year-old bridge located 2 MI S Of JCT I90&I93 in Suffolk County, Massachusetts. The bridge carries I 93 /US1/ST3 over RR Csx Spur with 8 traffic lanes, handling approximately 188K vehicles per day. Built in 1958 and reconstructed in 1984, the structure spans 24.8 meters.
The bridge received a Condition Grade of B (61/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 6/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 93 /US1/ST3 has a Condition Score of 61/100 (Grade B). Its deck is rated 7/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 93 /US1/ST3 was built in 1958 and reconstructed in 1984, making it 68 years old. The average bridge age in the United States is 48 years.
I 93 /US1/ST3 carries approximately 188K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 24.8 meters long and located on I 93 /US1/ST3 in 2 MI S Of JCT I90&I93, Suffolk County, Massachusetts.
No, I 93 /US1/ST3 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
I 93 /US1/ST3 is located 2 MI S Of JCT I90&I93 in Suffolk County, Massachusetts. The bridge carries I 93 /US1/ST3 over RR Csx Spur. Its coordinates are 42.316392, -71.051264. It is maintained by State Highway Agency.
I 93 /US1/ST3 carries I 93 /US1/ST3 over RR Csx Spur. The bridge is 24.8 meters long and was built in 1958, with reconstruction in 1984.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.