Home › Oklahoma › Washington County › N4030 over Fourmile Creek

N4030 over Fourmile Creek

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

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

N4030 over Fourmile Creek in Washington County, Oklahoma, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 2014, making it 11 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 81 of the 215 inventoried bridges in Washington County rated good (37.7%); 24 (11.2%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Concrete stringer or multi-beam girder
Length	about 182 ft
Location	7.2S 6E of Us-75/us-60
NBI structure number	286680000000000
Condition class	Good

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