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U.S. 270 over Old S.H. 18(G.COOPER Und

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

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

U.S. 270 over Old S.H. 18(G.COOPER Und in Pottawatomie 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 7 (good condition) on the 0-9 scale.
It was built in 1997, making it 28 years old at the 2025 inventory.
It carries about 6,100 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 87 of the 408 inventoried bridges in Pottawatomie County rated good (21.3%); 25 (6.1%) 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	Steel stringer or multi-beam girder
Length	about 234 ft
Location	7.1 Mi S Jct SH 3
NBI structure number	250460000000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I-40 WB over Old U.S. 270 Under	2018	38,000	Good
I-40 EB over Old U.S. 270 Under	2018	38,000	Good
I-40 over Creek	1961	34,400	Fair
I-40 over Deer Creek	2007	34,400	Good
I-40 over Creek	1962	27,900	Fair
I-40 over Creek	1963	20,500	Fair