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N3970 over South Fork Creek

Washington County, Oklahoma · rated Poor in the 2025 National Bridge Inventory

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

N3970 over South Fork Creek in Washington County, Oklahoma, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 2003, making it 22 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 24 of the 215 inventoried bridges in Washington County rated poor (11.2%); 24 (11.2%) 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 57 ft
Location	13.3S Jct US75/US60E
NBI structure number	275080000000000
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
U.S. 75 over Turkey Creek	1950	22,600	Good
Fau 6110 (frank Ph over Caney River	1980	20,700	Fair
U.S. 60 over U.S. 75 Under	1971	18,800	Good
U.S. 60 over Caney River	1971	18,800	Fair
U.S. 75 over Rice Creek	1949	16,400	Fair
U.S. 75 over Coon Creek	1983	14,700	Fair