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Co. Rd. N4140 over Muskogee Tp Under

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

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

Co. Rd. N4140 over Muskogee Tp Under 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 5 (fair condition) on the 0-9 scale.
It was built in 1968, making it 57 years old at the 2025 inventory.
It carries about 5,000 vehicles a day (traffic count year 2022).
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	Prestressed concrete stringer or multi-beam girder
Length	about 164 ft
Location	8.37 Mis SE Jct SH 51
NBI structure number	172780000000000
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