I 93 /US1/ST3
I 93 /US1/ST3 in 4.5 MI S Of JCT I90&I93, Suffolk County, Massachusetts received a condition grade of C (57/100). Built in 1957, the bridge carries 177K vehicles daily on I 93 /US1/ST3 over HWY Theatre Access RD.
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 69-year-old bridge located 4.5 MI S Of JCT I90&I93 in Suffolk County, Massachusetts. The bridge carries I 93 /US1/ST3 over HWY Theatre Access RD with 8 traffic lanes, handling approximately 177K vehicles per day. Built in 1957 and reconstructed in 1984, the structure spans 30.8 meters.
The bridge received a Condition Grade of C (57/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), 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 57/100 (Grade C). Its deck is rated 6/9, 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 1957 and reconstructed in 1984, making it 69 years old. The average bridge age in the United States is 48 years.
I 93 /US1/ST3 carries approximately 177K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 30.8 meters long and located on I 93 /US1/ST3 in 4.5 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 4.5 MI S Of JCT I90&I93 in Suffolk County, Massachusetts. The bridge carries I 93 /US1/ST3 over HWY Theatre Access RD. Its coordinates are 42.284439, -71.043433. It is maintained by State Highway Agency.
I 93 /US1/ST3 carries I 93 /US1/ST3 over HWY Theatre Access RD. The bridge is 30.8 meters long and was built in 1957, 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.