Bridge conditions in Baltimore County, Maryland

786 inventoried bridges · 22 rated poor · 2025 National Bridge Inventory

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

22 of the 786 bridges the federal inventory lists in Baltimore County are rated poor; the rest split 236 good and 528 fair.

• 22 of the 786 bridges in Baltimore County, Maryland, are rated in poor condition (2.8%) in the 2025 National Bridge Inventory, as of August 20, 2026.
• 236 bridges (30.0%) are rated good and 528 (67.2%) fair.
• The median Baltimore County bridge was built in 1971.
• The busiest poor-rated bridge is Rossville Boulevar over Amtrak Railroad and Orem (built 1971), carrying about 20,575 vehicles a day.

Good 30.0% · Fair 67.2% · Poor 2.8% of 786 bridges

Bridges rated poor

Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.

Busiest bridges in the county

Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.

All of Maryland: Maryland bridge conditions by county · every download on the data page.

Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.