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Wyo 435 over Tensleep Creek

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

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

Wyo 435 over Tensleep Creek in Washakie County, Wyoming, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1929, making it 96 years old at the 2025 inventory.
It carries about 164 vehicles a day (traffic count year 2024).
Its listed owner is the state highway agency.
It is one of 6 of the 60 inventoried bridges in Washakie County rated poor (10.0%); 6 (10.0%) 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

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
US 16 over Slick Creek	2012	3,298	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