IS 97
IS 97 in 0.78 Mile North Of Md 176, Anne Arundel County, Maryland received a condition grade of C (56/100). Built in 1955, the bridge carries 125K vehicles daily on IS 97 over Md 648e Mta Light Rail.
IS 97 carries a C on the BridgeSafety Condition Score with 56/100. Component ratings sit in the middle of the FHWA NBI distribution; rehabilitation programming is likely on the owning agency’s medium-term horizon.
The bridge was built in 1955 and is now 71 years old, at or past the typical 50-year design life for bridges of its vintage. Maintenance and inspection cycles are correspondingly more involved than for newer structures. IS 97 carries an average daily traffic count of 124,594 vehicles, with 6 lane(s) crossing Md 648e Mta Light Rail. The owning agency is State Highway Agency; bridge inspection records flow into the federal NBI database annually.
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
IS 97 is a 71-year-old bridge located 0.78 Mile North Of Md 176 in Anne Arundel County, Maryland. The bridge carries IS 97 over Md 648e Mta Light Rail with 6 traffic lanes, handling approximately 125K vehicles per day. Built in 1955 and reconstructed in 1979, the structure spans 79.9 meters.
The bridge received a Condition Grade of C (56/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 6/9 (fair), and substructure 5/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
IS 97 has a Condition Score of 56/100 (Grade C). Its deck is rated 7/9, superstructure 6/9, and substructure 5/9 on the NBI scale. The bridge is not classified as structurally deficient.
IS 97 was built in 1955 and reconstructed in 1979, making it 71 years old. The average bridge age in the United States is 48 years.
IS 97 carries approximately 125K vehicles per day (average daily traffic). The bridge has 6 traffic lanes. It is 79.9 meters long and located on IS 97 in 0.78 Mile North Of Md 176, Anne Arundel County, Maryland.
No, IS 97 is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
IS 97 is located 0.78 Mile North Of Md 176 in Anne Arundel County, Maryland. The bridge carries IS 97 over Md 648e Mta Light Rail. Its coordinates are 39.175806, -76.636344. It is maintained by State Highway Agency.
IS 97 carries IS 97 over Md 648e Mta Light Rail. The bridge is 79.9 meters long and was built in 1955, with reconstruction in 1979.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.
Source: FHWA National Bridge Inventory, 2026.