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N4280 over Flat Rock Creek

Wagoner County, Oklahoma · rated Fair in the 2025 National Bridge Inventory

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

N4280 over Flat Rock Creek in Wagoner County, Oklahoma, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 2013, making it 12 years old at the 2025 inventory.
It carries about 30 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 105 of the 257 inventoried bridges in Wagoner County rated fair (40.9%); 16 (6.2%) 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	Steel stringer or multi-beam girder
Length	about 55 ft
Location	1W 69 Hwy 2.2S Mayes Co L
NBI structure number	310690000000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
S.H. 51 NB over Muskogee Tp Under	1972	21,000	Fair
Muskogee Tp over Creek	1968	19,800	Good
Muskogee Tp over Creek	1968	19,800	Fair
Muskogee Tp over Creek	1968	19,800	Good
Muskogee Tp over Creek	1968	19,800	Good
Muskogee Tp over S.H. 16/ R.R. Under	1969	18,400	Fair