I 95 /ST128
I 95 /ST128 in 1.6 KM W Of I-93 & I-95, Middlesex County, Massachusetts received a condition grade of D (31/100). Built in 1950, the bridge carries 193K vehicles daily on I 95 /ST128 over RR Mbta/Bmrr. 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 95 /ST128 is a 76-year-old bridge located 1.6 KM W Of I-93 & I-95 in Middlesex County, Massachusetts. The bridge carries I 95 /ST128 over RR Mbta/Bmrr with 8 traffic lanes, handling approximately 193K vehicles per day. Built in 1950 and reconstructed in 1961, the structure spans 37.8 meters.
The bridge received a Condition Grade of D (31/100) based on Federal Highway Administration inspection data. Its deck is rated 4/9 (poor), superstructure 4/9 (poor), 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 95 /ST128 has a Condition Score of 31/100 (Grade D). Its deck is rated 4/9, superstructure 4/9, and substructure 4/9 on the NBI scale. The bridge is classified as structurally deficient.
I 95 /ST128 was built in 1950 and reconstructed in 1961, making it 76 years old. The average bridge age in the United States is 48 years.
I 95 /ST128 carries approximately 193K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 37.8 meters long and located on I 95 /ST128 in 1.6 KM W Of I-93 & I-95, Middlesex County, Massachusetts.
Yes, I 95 /ST128 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 95 /ST128 is located 1.6 KM W Of I-93 & I-95 in Middlesex County, Massachusetts. The bridge carries I 95 /ST128 over RR Mbta/Bmrr. Its coordinates are 42.502114, -71.136528. It is maintained by State Highway Agency.
I 95 /ST128 carries I 95 /ST128 over RR Mbta/Bmrr. The bridge is 37.8 meters long and was built in 1950, with reconstruction in 1961.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.