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US 89 over Snake River

Lincoln County, Wyoming · rated Fair in the 2025 National Bridge Inventory

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

US 89 over Snake River in Lincoln County, Wyoming, 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 1957, making it 68 years old at the 2025 inventory.
It carries about 6,574 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 83 of the 129 inventoried bridges in Lincoln County rated fair (64.3%); 7 (5.4%) 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	Continuous steel stringer or multi-beam girder
Length	about 541 ft
Location	Afton - Alpine Jct
NBI structure number	BOH
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 89 over Swift Creek	1987	12,155	Fair
US 89 over Salt River	1960	7,033	Fair
US 89 over Salt River	1960	7,033	Fair
US 89 over Etna Irrigation Canal	1960	7,033	Fair
US 89 over Etna Irrigation Canal	1969	7,033	Fair
US 89 over Etna Irrigation Canal	1994	7,033	Fair