I 93 NB
I 93 NB in .2 M N Of I90 EB, Suffolk County, Massachusetts received a condition grade of B (63/100). Built in 2002, the bridge carries 127K vehicles daily on I 93 NB over HWY Broadway.
I 93 NB carries a B on the BridgeSafety Condition Score with 63/100. 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 2002 and is 24 years old — relatively young against the U.S. bridge stock. Modern bridges built to current FHWA standards generally outperform older structures on condition ratings. I 93 NB carries an average daily traffic count of 127,241 vehicles, with 3 lane(s) crossing HWY Broadway. 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 93 NB is a 24-year-old bridge located .2 M N Of I90 EB in Suffolk County, Massachusetts. The bridge carries I 93 NB over HWY Broadway with 3 traffic lanes, handling approximately 127K vehicles per day. Built in 2002, the structure spans 203.2 meters.
The bridge received a Condition Grade of B (63/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), superstructure 5/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 93 NB has a Condition Score of 63/100 (Grade B). Its deck is rated 6/9, superstructure 5/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 93 NB was built in 2002, making it 24 years old. The average bridge age in the United States is 48 years.
I 93 NB carries approximately 127K vehicles per day (average daily traffic). The bridge has 3 traffic lanes. It is 203.2 meters long and located on I 93 NB in .2 M N Of I90 EB, Suffolk County, Massachusetts.
No, I 93 NB 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 NB is located .2 M N Of I90 EB in Suffolk County, Massachusetts. The bridge carries I 93 NB over HWY Broadway. Its coordinates are 42.343842, -71.061192. It is maintained by State Highway Agency.
I 93 NB carries I 93 NB over HWY Broadway. The bridge is 203.2 meters long and was built in 2002.
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.