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Bridge conditions in Somerset County, Maryland

46 inventoried bridges · 3 rated poor · 2025 National Bridge Inventory

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

3 of the 46 bridges the federal inventory lists in Somerset County are rated poor; the rest split 9 good and 34 fair.

3 of the 46 bridges in Somerset County, Maryland, are rated in poor condition (6.5%) in the 2025 National Bridge Inventory, as of August 20, 2026.
9 bridges (19.6%) are rated good and 34 (73.9%) fair.
The median Somerset County bridge was built in 1978.
The busiest poor-rated bridge is Marumsco Road over Marumsco Creek (built 1950), carrying about 141 vehicles a day.

Good 19.6% · Fair 73.9% · Poor 6.5% of 46 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.

Bridge	Built	Vehicles/day	Condition
Marumsco Road over Marumsco Creek	1950	141	Poor
Smith Island Road over Shanks Creek	1984	56	Poor
Marsh Road over Shanks Creek	1971	52	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
US 13 over Passerdyke Creek	1900	27,695	Fair
US 13 NB over Manokin River	1958	22,370	Fair
US 13 SB over Manokin River	1964	22,370	Fair
US 13 NB over Kings Creek	1962	20,870	Fair
US 13 NB over Jones Creek	1934	20,870	Fair
US 13 NB over Norfolk Southern RR	1957	16,470	Fair
US 13 SB over Norfolk Southern RR	1965	16,470	Fair
US 13 NB over Back Creek	1934	13,630	Fair
US 13 SB over Back Creek	1964	13,630	Good
US 13 SB over Kings Creek	1962	10,500	Fair

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.