US 29 SB
US 29 SB in 0.54 Mile South Of US 40, Howard County, Maryland received a condition grade of C (54/100). Built in 1966, the bridge carries 130K vehicles daily on US 29 SB over Frederick Road.
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
US 29 SB is a 60-year-old bridge located 0.54 Mile South Of US 40 in Howard County, Maryland. The bridge carries US 29 SB over Frederick Road with 4 traffic lanes, handling approximately 130K vehicles per day. Built in 1966, the structure spans 41.1 meters.
The bridge received a Condition Grade of C (54/100) based on Federal Highway Administration inspection data. Its deck is rated 5/9 (fair), superstructure 5/9 (fair), and substructure 6/9 (fair).
This bridge is owned and maintained by State Highway Agency.
Location Map
Frequently Asked Questions
US 29 SB has a Condition Score of 54/100 (Grade C). Its deck is rated 5/9, superstructure 5/9, and substructure 6/9 on the NBI scale. The bridge is not classified as structurally deficient.
US 29 SB was built in 1966, making it 60 years old. The average bridge age in the United States is 48 years.
US 29 SB carries approximately 130K vehicles per day (average daily traffic). The bridge has 4 traffic lanes. It is 41.1 meters long and located on US 29 SB in 0.54 Mile South Of US 40, Howard County, Maryland.
No, US 29 SB is not classified as structurally deficient. All three primary components (deck, superstructure, and substructure) are rated above 4 on the 0-9 NBI scale.
US 29 SB is located 0.54 Mile South Of US 40 in Howard County, Maryland. The bridge carries US 29 SB over Frederick Road. Its coordinates are 39.270625, -76.818336. It is maintained by State Highway Agency.
US 29 SB carries US 29 SB over Frederick Road. The bridge is 41.1 meters long and was built in 1966.
Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.