I 93
I 93 in 1 MI S Of JCT I93 & Sr60, Middlesex County, Massachusetts received a condition grade of C (58/100). Built in 1960, the bridge carries 182K vehicles daily on I 93 over ST 16 Myst Val Pky. It is classified as structurally deficient.
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 is a 66-year-old bridge located 1 MI S Of JCT I93 & Sr60 in Middlesex County, Massachusetts. The bridge carries I 93 over ST 16 Myst Val Pky with 8 traffic lanes, handling approximately 182K vehicles per day. Built in 1960 and reconstructed in 2011, the structure spans 99.1 meters.
The bridge received a Condition Grade of C (58/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 7/9 (good), and substructure 4/9 (poor). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below — this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 93 has a Condition Score of 58/100 (Grade C). Its deck is rated 7/9, superstructure 7/9, and substructure 4/9 on the NBI scale. The bridge is classified as structurally deficient.
I 93 was built in 1960 and reconstructed in 2011, making it 66 years old. The average bridge age in the United States is 48 years.
I 93 carries approximately 182K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 99.1 meters long and located on I 93 in 1 MI S Of JCT I93 & Sr60, Middlesex County, Massachusetts.
Yes, I 93 is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.
I 93 is located 1 MI S Of JCT I93 & Sr60 in Middlesex County, Massachusetts. The bridge carries I 93 over ST 16 Myst Val Pky. Its coordinates are 42.406061, -71.099450. It is maintained by State Highway Agency.
I 93 carries I 93 over ST 16 Myst Val Pky. The bridge is 99.1 meters long and was built in 1960, with reconstruction in 2011.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.