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Bridge conditions in McKenzie County, North Dakota

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

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

McKenzie County tracks close to typical: 1 of its 136 inventoried bridges (0.7%) are rated poor, against a national rate of about 7%.

1 of the 136 bridges in McKenzie County, North Dakota, are rated in poor condition (0.7%) in the 2025 National Bridge Inventory, as of August 20, 2026.
88 bridges (64.7%) are rated good and 47 (34.6%) fair.
The median McKenzie County bridge was built in 1999.
The busiest poor-rated bridge is County Highway over Charbonneau Creek (built 1962), carrying about 20 vehicles a day.

Good 64.7% · Fair 34.6% · Poor 0.7% of 136 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 Charbonneau Creek	1962	20	Poor

Busiest bridges in the county

Bridge	Built	Vehicles/day	Condition
US Highway 85 over Creek	2014	12,880	Fair
US Highway 85 over Creek	2014	12,880	Fair
US Highway 85 over Creek	2014	12,880	Fair
US Highway 85 over Creek	2014	12,880	Good
US Highway 85 over Drain	2016	10,545	Good
US Highway 85 over Wildlife Crossing	2017	10,545	Good
US Highway 85 over Lonesome Creek	2014	9,955	Good
Nd Highway-23a over Cherry Creek	2018	7,875	Good
US Highway 85 over Missouri River-bnrr	2017	6,677	Fair
Nd Highway 1806 over Cherry Creek	2021	5,980	Good

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.