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County Road 21 over Sandy Creek

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

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

County Road 21 over Sandy Creek in Phillips County, Colorado, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1993, making it 32 years old at the 2025 inventory.
It carries about 65 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 20 of the 26 inventoried bridges in Phillips County rated fair (76.9%); 5 (19.2%) 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	Steel stringer or multi-beam girder
Length	about 82 ft
Location	0.4 Mi No of Co Rd 14
NBI structure number	PH21-0.4-14-A
Condition class	Fair

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