Bridge conditions in Foster County, North Dakota

19 inventoried bridges · 1 rated poor · 2025 National Bridge Inventory

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

Foster County tracks close to typical: 1 of its 19 inventoried bridges (5.3%) are rated poor, against a national rate of about 7%.

1 of the 19 bridges in Foster County, North Dakota, are rated in poor condition (5.3%) in the 2025 National Bridge Inventory, as of August 20, 2026.
9 bridges (47.4%) are rated good and 9 (47.4%) fair.
The median Foster County bridge was built in 1979.
The busiest poor-rated bridge is County Highway over James River (built 1925), carrying about 5 vehicles a day.

Good 47.4% · Fair 47.4% · Poor 5.3% of 19 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
County Highway over James River	1925	5	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
US Highway 52 over Cp Railway	2004	5,800	Good
US Highway 52 over Cp Railway	1979	2,290	Fair
US Highway 52 over Pipestem Creek	1965	1,830	Good
Nd Highway 200 over James River	1959	680	Good
Nd Highway 20 over Bn Railroad	1989	480	Good
County Highway over Pipestem Creek	1970	330	Fair
Nd Highway 9 over James River	1965	280	Fair
County Highway over James River	1967	220	Fair
County Road over James River	1977	145	Fair
County Road over Pipestem Creek	1966	65	Fair

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

All of North Dakota: North Dakota 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.