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Bridge conditions in Cook County, Minnesota

59 inventoried bridges · 4 rated poor · 2025 National Bridge Inventory

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

Cook County tracks close to typical: 4 of its 59 inventoried bridges (6.8%) are rated poor, against a national rate of about 7%.

4 of the 59 bridges in Cook County, Minnesota, are rated in poor condition (6.8%) in the 2025 National Bridge Inventory, as of August 20, 2026.
32 bridges (54.2%) are rated good and 23 (39.0%) fair.
The median Cook County bridge was built in 1999.
The busiest poor-rated bridge is Csah 2 over Temperance River (built 1961), carrying about 168 vehicles a day.

Good 54.2% · Fair 39.0% · Poor 6.8% of 59 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
Csah 2 over Temperance River	1961	168	Poor
Pancore Lake Road over Poplar River	1982	50	Poor
Ut 74 over Pine River	1960	35	Poor
Twin Lakes Road over South Brule River	1957	16	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
Mn 61 over Cutface Creek	2015	3,650	Fair
Mn 61 over Onion River	2009	3,650	Fair
Mn 61 over Poplar River	1931	3,650	Fair
Mn 61 over Cascade River	1932	3,650	Fair
Mn 61 over Cross River	1999	3,000	Good
Mn 61 over Temperance River	1931	3,000	Fair
Mn 61 over Devils Track River	2016	2,850	Fair
Mn 61 over Cliff Creek	2004	2,850	Good
Mn 61 over Kimball Creek	2004	2,850	Good
Mn 61 over Brule River	1981	2,400	Fair

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

All of Minnesota: Minnesota 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.