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Irr N3925 (osage) over Flat Rock Creek

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

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

Irr N3925 (osage) over Flat Rock Creek in Osage 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 2013, making it 12 years old at the 2025 inventory.
It carries about 960 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 135 of the 368 inventoried bridges in Osage County rated good (36.7%); 66 (17.9%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 107 ft
Location	.5N of 36TH Street N.
NBI structure number	308150000000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
N3934 (tisdale Ex) over Creek	1987	12,200	Fair
Tisdale Pkwy/ S-bd over Apache St. Under	2001	12,000	Fair
Tisdale Pkwy. N-bd over Apache St. Under	2001	12,000	Fair
Gilcrease Expwy over Creek	2009	10,300	Good
Gilcrease Expwy over Creek	2009	10,300	Good
U.S. 60 over Ark River & Co Rd Under	1989	6,800	Fair