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Cimarron Rd. over I-40 Under

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

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

Cimarron Rd. over I-40 Under in Canadian 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 1966, making it 59 years old at the 2025 inventory.
It carries about 200 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 233 of the 495 inventoried bridges in Canadian County rated fair (47.1%); 18 (3.6%) 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	Continuous steel stringer or multi-beam girder
Length	about 242 ft
Location	28.6 Mi. E. Caddo Co
NBI structure number	168000000000000
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I-40 over Creek	1965	63,000	Good
I-40 over Creek	1966	40,700	Good
I-40 over Creek	1966	40,700	Good
I-40 WB over Reno Ave. Under	1966	31,500	Good
Kilpatrick Tp WB over County Line Rd Under	2019	30,400	Good
Kilpatrick Tp EB over County Line Rd Under	2019	30,400	Good