I 93 NB
I 93 NB in 0.1 MI Sly Andover T.L., Middlesex County, Massachusetts received a condition grade of C (50/100). Built in 1958, the bridge carries 146K vehicles daily on I 93 NB over HWY Vale 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 is a 68-year-old bridge located 0.1 MI Sly Andover T.L. in Middlesex County, Massachusetts. The bridge carries I 93 NB over HWY Vale ST with 3 traffic lanes, handling approximately 146K vehicles per day. Built in 1958 and reconstructed in 1975, the structure spans 13.7 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 6/9 (fair), and substructure 5/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 93 NB has a Condition Score of 50/100 (Grade C). Its deck is rated 5/9, superstructure 6/9, and substructure 5/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 93 NB was built in 1958 and reconstructed in 1975, making it 68 years old. The average bridge age in the United States is 48 years.
I 93 NB carries approximately 146K vehicles per day (average daily traffic). The bridge has 3 traffic lanes. It is 13.7 meters long and located on I 93 NB in 0.1 MI Sly Andover T.L., Middlesex 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 0.1 MI Sly Andover T.L. in Middlesex County, Massachusetts. The bridge carries I 93 NB over HWY Vale ST. Its coordinates are 42.617011, -71.175397. It is maintained by State Highway Agency.
I 93 NB carries I 93 NB over HWY Vale ST. The bridge is 13.7 meters long and was built in 1958, with reconstruction in 1975.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.