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Irr# SH 151 Ml over Los Pinos River

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

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

Irr# SH 151 Ml over Los Pinos River in La Plata 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 2005, making it 20 years old at the 2025 inventory.
It carries about 3,400 vehicles a day (traffic count year 2020).
Its listed owner is the state highway agency.
It is one of 45 of the 105 inventoried bridges in La Plata County rated good (42.9%); 1 (1.0%) 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 multiple box beam
Length	about 250 ft
Location	In Ignacio
NBI structure number	P-06-AB
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
US 160 Ml over City St_animas Rvr	1979	35,000	Fair
US 160 Ml over Animas River	1974	30,000	Fair
US 550 Ml over Animas River	1910	28,000	Fair
US 160 Ml over Lightner Creek	1970	19,000	Fair
Private Land Acces over Lightner Creek Ar	1973	19,000	Fair
US 160 Ml over Animas River	1968	17,000	Fair