I 93 NB/US1NB
I 93 NB/US1NB in I 93 NB At ST 28, Norfolk County, Massachusetts received a condition grade of C (50/100). Built in 1958, the bridge carries 129K vehicles daily on I 93 NB/US1NB over ST 28 N Main ST.
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/US1NB is a 68-year-old bridge located I 93 NB At ST 28 in Norfolk County, Massachusetts. The bridge carries I 93 NB/US1NB over ST 28 N Main ST with 5 traffic lanes, handling approximately 129K vehicles per day. Built in 1958, the structure spans 49.7 meters.
The bridge received a Condition Grade of C (50/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (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/US1NB has a Condition Score of 50/100 (Grade C). Its deck is rated 5/9, superstructure 5/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 93 NB/US1NB was built in 1958, making it 68 years old. The average bridge age in the United States is 48 years.
I 93 NB/US1NB carries approximately 129K vehicles per day (average daily traffic). The bridge has 5 traffic lanes. It is 49.7 meters long and located on I 93 NB/US1NB in I 93 NB At ST 28, Norfolk County, Massachusetts.
No, I 93 NB/US1NB 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/US1NB is located I 93 NB At ST 28 in Norfolk County, Massachusetts. The bridge carries I 93 NB/US1NB over ST 28 N Main ST. Its coordinates are 42.205092, -71.064978. It is maintained by State Highway Agency.
I 93 NB/US1NB carries I 93 NB/US1NB over ST 28 N Main ST. The bridge is 49.7 meters long and was built in 1958.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.