IS 270 & CD RDS
IS 270 & CD RDS in 0.21 Mile North Of Md 28, Montgomery County, Maryland received a condition grade of F (0/100). Built in 1955, the bridge carries 239K vehicles daily on IS 270 & CD RDS over Watts Branch. 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
IS 270 & CD RDS is a 71-year-old bridge located 0.21 Mile North Of Md 28 in Montgomery County, Maryland. The bridge carries IS 270 & CD RDS over Watts Branch with 13 traffic lanes, handling approximately 239K vehicles per day. Built in 1955 and reconstructed in 1988, the structure spans 8.5 meters.
The bridge received a Condition Grade of F (0/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 0/9 (serious), and substructure 0/9 (serious). 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
IS 270 & CD RDS has a Condition Score of 0/100 (Grade F). Its deck is rated 0/9, superstructure 0/9, and substructure 0/9 on the NBI scale. The bridge is classified as structurally deficient.
IS 270 & CD RDS was built in 1955 and reconstructed in 1988, making it 71 years old. The average bridge age in the United States is 48 years.
IS 270 & CD RDS carries approximately 239K vehicles per day (average daily traffic). The bridge has 13 traffic lanes. It is 8.5 meters long and located on IS 270 & CD RDS in 0.21 Mile North Of Md 28, Montgomery County, Maryland.
Yes, IS 270 & CD RDS 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.
IS 270 & CD RDS is located 0.21 Mile North Of Md 28 in Montgomery County, Maryland. The bridge carries IS 270 & CD RDS over Watts Branch. Its coordinates are 39.088850, -77.173947. It is maintained by State Highway Agency.
IS 270 & CD RDS carries IS 270 & CD RDS over Watts Branch. The bridge is 8.5 meters long and was built in 1955, with reconstruction in 1988.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.