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Nd Highway 1806 over Tobacco Garden Creek

McKenzie County, North Dakota · rated Fair in the 2025 National Bridge Inventory

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

Nd Highway 1806 over Tobacco Garden Creek in McKenzie County, North Dakota, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 5 (fair condition) on the 0-9 scale.
It was built in 1979, making it 46 years old at the 2025 inventory.
It carries about 180 vehicles a day (traffic count year 2019).
Its listed owner is the state highway agency.
It is one of 47 of the 136 inventoried bridges in McKenzie County rated fair (34.6%); 1 (0.7%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings


Structure	Prestressed concrete tee beam
Length	about 71 ft
Location	10 North Nd 23
NBI structure number	1806300987
Condition class	Fair

Source: FHWA National Bridge Inventory, 2025 data as reported by the North Dakota department of transportation.

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