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U.S. 270 over U.P. R.R. & St. Under

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 U.P. R.R. & St. Under 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 2008, making it 17 years old at the 2025 inventory.
It carries about 15,100 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 326 ft
Location	2.4MI. S. Jct. S.H. 3
NBI structure number	284370000000000
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