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SR 45 over Mining Trench

Uintah County, Utah · rated Good in the 2025 National Bridge Inventory

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

SR 45 over Mining Trench in Uintah County, Utah, 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 2016, making it 9 years old at the 2025 inventory.
It carries about 481 vehicles a day (traffic count year 2017).
Its listed owner is the state highway agency.
It is one of 27 of the 90 inventoried bridges in Uintah County rated good (30.0%); 3 (3.3%) 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	Concrete stringer or multi-beam girder
Length	about 166 ft
Location	SR 45 @ Bonanza
NBI structure number	0F 873
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
SR-121 over Steinaker Service Canal	1932	8,200	Fair
US-40 (SR-40) over Uintah River	1960	7,600	Fair
US-40 (SR-40) over Sand Wash	1959	7,600	Fair
US-40 (SR-40) over Halfway Hollow Wash	1965	6,411	Fair
US-40 (SR-40) over Twelve Mile Wash	1965	6,411	Fair
US-191 (SR-191) over Ashley Creek	2005	4,288	Fair