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Fdr 660 over Rio Blanco

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

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

Fdr 660 over Rio Blanco in Archuleta County, Colorado, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1960 and reconstructed in 2000, making it 65 years old at the 2025 inventory.
It carries about 73 vehicles a day (traffic count year 2002).
It is one of 2 of the 45 inventoried bridges in Archuleta County rated poor (4.4%); 2 (4.4%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Prestressed concrete tee beam
Length	about 66 ft
Location	12.2 Mi Ese of Pagosa Spg
NBI structure number	021306000001020
Condition class	Poor

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