I 93 SB
I 93 SB in Unit 1, Suffolk County, Massachusetts received a condition grade of B (67/100). Built in 2000, the bridge carries 165K vehicles daily on I 93 SB over HWY W Fourth 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 SB is a 26-year-old bridge located Unit 1 in Suffolk County, Massachusetts. The bridge carries I 93 SB over HWY W Fourth ST with 6 traffic lanes, handling approximately 165K vehicles per day. Built in 2000, the structure spans 91.3 meters.
The bridge received a Condition Grade of B (67/100) based on Federal Highway Administration inspection data. Its deck is rated 6/9 (fair), 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 93 SB has a Condition Score of 67/100 (Grade B). Its deck is rated 6/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
I 93 SB was built in 2000, making it 26 years old. The average bridge age in the United States is 48 years.
I 93 SB carries approximately 165K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 91.3 meters long and located on I 93 SB in Unit 1, Suffolk County, Massachusetts.
No, I 93 SB 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 SB is located Unit 1 in Suffolk County, Massachusetts. The bridge carries I 93 SB over HWY W Fourth ST. Its coordinates are 42.342947, -71.062272. It is maintained by State Highway Agency.
I 93 SB carries I 93 SB over HWY W Fourth ST. The bridge is 91.3 meters long and was built in 2000.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.