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Thistle Road over Tributary to Patapsco Ri

Baltimore County, Maryland · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

Thistle Road over Tributary to Patapsco Ri in Baltimore County, Maryland, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1920, making it 105 years old at the 2025 inventory.
It carries about 1,466 vehicles a day (traffic count year 2024).
Its listed owner is the county highway agency.
It is one of 528 of the 786 inventoried bridges in Baltimore County rated fair (67.2%); 22 (2.8%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Continuous concrete tee beam
Length	about 45 ft
Location	0.57 Mi S of Md 144
NBI structure number	200000B-0177010
Condition class	Fair

Source: FHWA National Bridge Inventory, 2025 data as reported by the Maryland department of transportation.

Bridge	Built	Vehicles/day	Condition
Is 83/IS 695 over Thornton Road	1954	222,500	Fair
Is 695 over Md 26	2012	210,600	Good
Is 695 & Belmont A over Dead Run	1961	206,852	Fair
Is 695 over Mta Light Rail	1955	205,485	Fair
Is 695 over Security Boulevard	1961	203,902	Good
Is 695 over Dogwood Road	1961	203,902	Fair