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N3660 over House Creek

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

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

N3660 over House Creek in Pawnee 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 8 (very good condition) on the 0-9 scale.
It was built in 2005, making it 20 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 82 of the 174 inventoried bridges in Pawnee County rated good (47.1%); 32 (18.4%) 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	Concrete stringer or multi-beam girder
Length	about 182 ft
Location	5E Jennings; 1N Creek C/l
NBI structure number	273590000000000
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
U.S. 64 over Arkansas River	1963	16,000	Fair
U.S. 64 over Cedar Creek	2021	8,734	Good
Cimarron Tp over Creek	1973	8,600	Good
Cimarron Tp over No Name Creek	1973	8,600	Fair
Cimarron Tp over BNSF R.R.	1973	8,600	Fair
Cimarron Tp over Cowskin Creek	1973	8,600	Good