ST 3
ST 3 in .16 KM E Braintree T.L., Norfolk County, Massachusetts received a condition grade of C (54/100). Built in 1957, the bridge carries 236K vehicles daily on ST 3 over HWY Summer 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
ST 3 is a 69-year-old bridge located .16 KM E Braintree T.L. in Norfolk County, Massachusetts. The bridge carries ST 3 over HWY Summer ST with 6 traffic lanes, handling approximately 236K vehicles per day. Built in 1957 and reconstructed in 1978, the structure spans 19.1 meters.
The bridge received a Condition Grade of C (54/100) 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
ST 3 has a Condition Score of 54/100 (Grade C). 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.
ST 3 was built in 1957 and reconstructed in 1978, making it 69 years old. The average bridge age in the United States is 48 years.
ST 3 carries approximately 236K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 19.1 meters long and located on ST 3 in .16 KM E Braintree T.L., Norfolk County, Massachusetts.
No, ST 3 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
ST 3 is located .16 KM E Braintree T.L. in Norfolk County, Massachusetts. The bridge carries ST 3 over HWY Summer ST. Its coordinates are 42.199547, -70.970094. It is maintained by State Highway Agency.
ST 3 carries ST 3 over HWY Summer ST. The bridge is 19.1 meters long and was built in 1957, with reconstruction in 1978.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.