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US 16 over Slick Creek

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

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

US 16 over Slick Creek in Washakie 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 2012, making it 13 years old at the 2025 inventory.
It carries about 3,298 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 32 of the 60 inventoried bridges in Washakie County rated fair (53.3%); 6 (10.0%) 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 149 ft
Location	Worland - Ten Sleep
NBI structure number	LYY
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 16 over Lower Hanover Canal	1951	9,910	Fair
US 20 over Big Horn River	1975	4,411	Fair
Wyo 433 over Big Horn Canal	2006	2,866	Fair
US 20 over Big Horn Canal	2006	2,768	Good
US 20 over Fifteen Mile Creek	2006	2,768	Fair
US 16 over Slick Creek	1985	2,145	Good