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I-70 (SR-70) Wbl over SR-120 Intchg.x-road

Sevier County, Utah · rated Fair in the 2025 National Bridge Inventory

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

I-70 (SR-70) Wbl over SR-120 Intchg.x-road in Sevier County, Utah, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1988, making it 37 years old at the 2025 inventory.
It carries about 6,705 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 133 of the 157 inventoried bridges in Sevier County rated fair (84.7%); 1 (0.6%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 141 ft
Location	South Richfield Intchg.
NBI structure number	4F 525
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
SR-120 over Richfield Canal	1956	18,004	Fair
SR-120 over State Canal	1978	10,675	Fair
I-70 (SR-70) over So.branch So.cedar Wash	1988	10,111	Fair
I-70 (SR-70) over South Cedar Wash	1988	10,111	Fair
I-70 (SR-70) over State Canal	1988	10,111	Fair
I-70 (SR-70) over North Cedar Wash	1988	10,111	Fair