I 90
I 90 in .1 MI E.Charles Rv S10, Middlesex County, Massachusetts received a condition grade of D (39/100). Built in 1964, the bridge carries 176K vehicles daily on I 90 over HWY Charles ST. It is classified as structurally deficient.
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 90 is a 62-year-old bridge located .1 MI E.Charles Rv S10 in Middlesex County, Massachusetts. The bridge carries I 90 over HWY Charles ST with 6 traffic lanes, handling approximately 176K vehicles per day. Built in 1964, the structure spans 12.5 meters.
The bridge received a Condition Grade of D (39/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 6/9 (fair), and substructure 6/9 (fair). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below — this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
I 90 has a Condition Score of 39/100 (Grade D). Its deck is rated 0/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is classified as structurally deficient.
I 90 was built in 1964, making it 62 years old. The average bridge age in the United States is 48 years.
I 90 carries approximately 176K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 12.5 meters long and located on I 90 in .1 MI E.Charles Rv S10, Middlesex County, Massachusetts.
Yes, I 90 is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.
I 90 is located .1 MI E.Charles Rv S10 in Middlesex County, Massachusetts. The bridge carries I 90 over HWY Charles ST. Its coordinates are 42.342542, -71.256969. It is maintained by State Highway Agency.
I 90 carries I 90 over HWY Charles ST. The bridge is 12.5 meters long and was built in 1964.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.