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County Road 31 over Wildhorse Creek

Phillips County, Colorado · rated Good in the 2025 National Bridge Inventory

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

County Road 31 over Wildhorse Creek in Phillips County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
It was built in 1987, making it 38 years old at the 2025 inventory.
It carries about 35 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 1 of the 26 inventoried bridges in Phillips County rated good (3.8%); 5 (19.2%) 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

Component	Rating (2025)	FHWA scale meaning
Superstructure	7	Good condition
Substructure	8	Very good condition

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

Bridge	Built	Vehicles/day	Condition
US 6 Ml over Frenchman Creek	1935	1,900	Poor
US 385 Ml over Frenchman Creek	1949	1,900	Fair
US 6 Ml over N.fk.frenchman Creek	2004	1,900	Fair
US 6 Ml over Frenchman Creek	1934	1,500	Poor
US 6 Ml over Draw	1934	1,500	Poor
US 6 Ml over Draw	2005	1,500	Fair