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U.S. 56 over Creek

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

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

U.S. 56 over Creek in Cimarron County, Oklahoma, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
It was built in 1936 and reconstructed in 1991, making it 89 years old at the 2025 inventory.
It carries about 5,900 vehicles a day (traffic count year 2022).
Its listed owner is the state highway agency.
It is one of 48 of the 90 inventoried bridges in Cimarron County rated good (53.3%); 1 (1.1%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
Its condition class and component ratings are unchanged from the 2024 inventory.
Its most recent inspection on record is dated October 2024, on a 24-month routine inspection cycle.
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

Component	Rating (2024)	Rating (2025)	FHWA scale meaning
Culvert	7	7	Good condition


Structure	Concrete culvert
Length	about 55 ft
Location	0.3 Mi. W. Jct. US287
NBI structure number	049520000000000
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	October 2024
Inspection interval (item 91)	24 months
Scour (item 113)	7: scour countermeasures installed

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

Bridge	Built	Vehicles/day	Condition
U.S. 56 over BNSF R.R. Under	1988	4,600	Fair
U.S. 56 over Drainage Canal Boisecity	1951	4,000	Fair
U.S. 287 over Adobe Draw	2010	3,257	Good
U.S. 287 over Cimarron Valley RR Under	2011	2,700	Fair
U.S. 287 over Creek	1935	2,300	Good
U.S. 287 over Creek	1935	2,200	Fair