I 95 /ST128
I 95 /ST128 in 0.1 MI Nly Rt 30, Middlesex County, Massachusetts received a condition grade of B (61/100). Built in 1950, the bridge carries 150K vehicles daily on I 95 /ST128 over Other Mdc Aqueduct.
I 95 /ST128 carries a B on the BridgeSafety Condition Score with 61/100. 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 1950 and is now 76 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. I 95 /ST128 carries an average daily traffic count of 150,095 vehicles, with 8 lane(s) crossing Other Mdc Aqueduct. 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
I 95 /ST128 is a 76-year-old bridge located 0.1 MI Nly Rt 30 in Middlesex County, Massachusetts. The bridge carries I 95 /ST128 over Other Mdc Aqueduct with 8 traffic lanes, handling approximately 150K vehicles per day. Built in 1950 and reconstructed in 1962, the structure spans 12.5 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 7/9 (good).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 95 /ST128 has a Condition Score of 61/100 (Grade B). Its deck is rated 7/9, superstructure 6/9, and substructure 7/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 95 /ST128 was built in 1950 and reconstructed in 1962, making it 76 years old. The average bridge age in the United States is 48 years.
I 95 /ST128 carries approximately 150K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 12.5 meters long and located on I 95 /ST128 in 0.1 MI Nly Rt 30, Middlesex County, Massachusetts.
No, I 95 /ST128 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 95 /ST128 is located 0.1 MI Nly Rt 30 in Middlesex County, Massachusetts. The bridge carries I 95 /ST128 over Other Mdc Aqueduct. Its coordinates are 42.344953, -71.262672. It is maintained by State Highway Agency.
I 95 /ST128 carries I 95 /ST128 over Other Mdc Aqueduct. The bridge is 12.5 meters long and was built in 1950, with reconstruction in 1962.
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.