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County Road 337A over Rio Blanco River

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

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

County Road 337A over Rio Blanco River in Archuleta County, Colorado, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2015, making it 10 years old at the 2025 inventory.
It carries about 196 vehicles a day (traffic count year 2022).
Its listed owner is the county highway agency.
It is one of 10 of the 45 inventoried bridges in Archuleta County rated good (22.2%); 2 (4.4%) 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	Prestressed concrete single box beam
Length	about 60 ft
Location	0.1 MI S. of SH84
NBI structure number	AR337A-S.1-S84A
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US160 Ml over Mccabe Creek	2019	16,600	Good
US 160 Ml over San Juan River	1962	8,800	Fair
US 160 Ml over Martinez Creek	1972	8,700	Fair
US 160 Ml over Wildlife Crossing	2022	5,500	Good
Hot Springs Blvd. over San Juan River	1989	5,150	Fair
US 160 Ml over Piedra River	1954	4,300	Fair