I 95 /ST128
I 95 /ST128 in 0.2 MI Nly Rt 30, Middlesex County, Massachusetts received a condition grade of C (57/100). Built in 1950, the bridge carries 147K vehicles daily on I 95 /ST128 over HWY Norumbega RD.
I 95 /ST128 carries a C on the BridgeSafety Condition Score with 57/100. Component ratings sit in the middle of the FHWA NBI distribution; rehabilitation programming is likely on the owning agency’s medium-term horizon.
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 147,364 vehicles, with 9 lane(s) crossing HWY Norumbega RD. 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 0.2 MI Nly Rt 30 in Middlesex County, Massachusetts. The bridge carries I 95 /ST128 over HWY Norumbega RD with 9 traffic lanes, handling approximately 147K vehicles per day. Built in 1950 and reconstructed in 1962, the structure spans 16.2 meters.
The bridge received a Condition Grade of C (57/100) 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 95 /ST128 has a Condition Score of 57/100 (Grade C). 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 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 147K vehicles per day (average daily traffic). The bridge has 9 traffic lanes. It is 16.2 meters long and located on I 95 /ST128 in 0.2 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 0.2 MI Nly Rt 30 in Middlesex County, Massachusetts. The bridge carries I 95 /ST128 over HWY Norumbega RD. Its coordinates are 42.346231, -71.262344. It is maintained by State Highway Agency.
I 95 /ST128 carries I 95 /ST128 over HWY Norumbega RD. The bridge is 16.2 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.