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I 86 Ebl over I 84 Wbl

Cassia County, Idaho · rated Good in the 2025 National Bridge Inventory

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

I 86 Ebl over I 84 Wbl in Cassia County, Idaho, 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 2020, making it 5 years old at the 2025 inventory.
It carries about 19,000 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 24 of the 117 inventoried bridges in Cassia County rated good (20.5%); 0 (0.0%) 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	Continuous prestressed concrete single box beam
Length	about 452 ft
Location	13.8 E Burley
NBI structure number	000000000010593
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 84B over Snake River;overland Br	2001	26,000	Fair
I 84B Sbl over Snake River;heyburn Br.	1977	17,000	Fair
I 84B Nbl over Snake River;heyburn Br.	1955	15,000	Fair
SH 77 over Canal	1985	13,000	Fair
I 84 over Co.rd.;horse Butte Gs	1963	11,500	Fair
I 84 over Juniper Rd;gs NO.1	1968	11,000	Fair