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N4120 over N. Fork of Ash Creek

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

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

N4120 over N. Fork of Ash Creek in Muskogee 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 1982, making it 43 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 43 of the 400 inventoried bridges in Muskogee County rated poor (10.8%); 43 (10.8%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 67 ft
Location	3.2n;2w of SH16 & 72
NBI structure number	202000000000000
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. 62 over Creek	1955	25,000	Fair
U.S. 62 over Creek	1972	25,000	Good
S.H. 165 over Web Creek	1969	18,600	Good
S.H. 165 over Treaty Creek	1969	18,600	Fair
Muskogee Tp over K.o. & G.r.r. Under	1968	18,400	Good
Muskogee Tp over Arkansas River	1968	18,400	Good