IS 495 & RAMP K(4)
IS 495 & RAMP K(4) in 0.49 Mile West Of Md 190, Montgomery County, Maryland received a condition grade of B (60/100). Built in 1962, the bridge carries 214K vehicles daily on IS 495 & RAMP K(4) over Is 495x & C J CR.
IS 495 & RAMP K(4) carries a B on the BridgeSafety Condition Score with 60/100. Most component ratings are solid; one or two may show wear consistent with the structure’s age, but the bridge is not flagged as structurally deficient.
The bridge was built in 1962 and is now 64 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 495 & RAMP K(4) carries an average daily traffic count of 214,005 vehicles, with 8 lane(s) crossing Is 495x & C J CR. 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 495 & RAMP K(4) is a 64-year-old bridge located 0.49 Mile West Of Md 190 in Montgomery County, Maryland. The bridge carries IS 495 & RAMP K(4) over Is 495x & C J CR with 8 traffic lanes, handling approximately 214K vehicles per day. Built in 1962 and reconstructed in 1991, the structure spans 107.9 meters.
The bridge received a Condition Grade of B (60/100) 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
IS 495 & RAMP K(4) has a Condition Score of 60/100 (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.
IS 495 & RAMP K(4) was built in 1962 and reconstructed in 1991, making it 64 years old. The average bridge age in the United States is 48 years.
IS 495 & RAMP K(4) carries approximately 214K vehicles per day (average daily traffic). The bridge has 8 traffic lanes. It is 107.9 meters long and located on IS 495 & RAMP K(4) in 0.49 Mile West Of Md 190, Montgomery County, Maryland.
No, IS 495 & RAMP K(4) 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 & RAMP K(4) is located 0.49 Mile West Of Md 190 in Montgomery County, Maryland. The bridge carries IS 495 & RAMP K(4) over Is 495x & C J CR. Its coordinates are 38.984356, -77.159200. It is maintained by State Highway Agency.
IS 495 & RAMP K(4) carries IS 495 & RAMP K(4) over Is 495x & C J CR. The bridge is 107.9 meters long and was built in 1962, with reconstruction in 1991.
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.