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Haynes Rd over Flat Creek

Adams County, North Dakota · rated Poor in the 2025 National Bridge Inventory

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

Haynes Rd over Flat Creek in Adams County, North Dakota, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
It was built in 1936, making it 89 years old at the 2025 inventory.
It carries about 10 vehicles a day (traffic count year 2019).
Its listed owner is the county highway agency.
It is one of 5 of the 44 inventoried bridges in Adams County rated poor (11.4%); 5 (11.4%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Steel stringer or multi-beam girder
Length	about 23 ft
Location	South Edge of Haynes
NBI structure number	000000001125230
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Nd Highway 8 over Flat Creek	1959	1,730	Fair
US Highway 12 over Flat Creek	1941	1,370	Fair
US Highway 12 over Creek	2007	1,180	Good
US Highway 12 over Flat Creek	2007	1,180	Good
US Highway 12 over Flat Creek	2007	1,180	Good
US Highway 12 over BNSF Railroad	2000	675	Fair