IS 495
IS 495 in 0.604 Mile East Of Md 97, Montgomery County, Maryland received a condition grade of B (62/100). Built in 1959, the bridge carries 232K vehicles daily on IS 495 over Sligo Creek Parkway.
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 495 is a 67-year-old bridge located 0.604 Mile East Of Md 97 in Montgomery County, Maryland. The bridge carries IS 495 over Sligo Creek Parkway with 8 traffic lanes, handling approximately 232K vehicles per day. Built in 1959 and reconstructed in 2001, the structure spans 34.4 meters.
The bridge received a Condition Grade of B (62/100) based on Federal Highway Administration inspection data. Its deck is rated 7/9 (good), superstructure 6/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
IS 495 has a Condition Score of 62/100 (Grade B). Its deck is rated 7/9, superstructure 6/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
IS 495 was built in 1959 and reconstructed in 2001, making it 67 years old. The average bridge age in the United States is 48 years.
IS 495 carries approximately 232K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 34.4 meters long and located on IS 495 in 0.604 Mile East Of Md 97, Montgomery County, Maryland.
No, IS 495 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 495 is located 0.604 Mile East Of Md 97 in Montgomery County, Maryland. The bridge carries IS 495 over Sligo Creek Parkway. Its coordinates are 39.015286, -77.031497. It is maintained by State Highway Agency.
IS 495 carries IS 495 over Sligo Creek Parkway. The bridge is 34.4 meters long and was built in 1959, with reconstruction in 2001.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.