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N 2850 E Road over Butte Market Lake Canal

Jefferson County, Idaho · rated Fair in the 2025 National Bridge Inventory

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

N 2850 E Road over Butte Market Lake Canal in Jefferson County, Idaho, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
It was built in 1931, making it 94 years old at the 2025 inventory.
It carries about 30 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 97 of the 125 inventoried bridges in Jefferson County rated fair (77.6%); 4 (3.2%) 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

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

Bridge	Built	Vehicles/day	Condition
US 20 over Garfield Ucon Canal	1972	34,500	Fair
US 20 over Burgess Canal	1975	28,500	Fair
US 20 Eb-wb over SH 48;RIGBY Gs	1976	28,500	Fair
US 20 Ebl & Wbl over Parks Lewisville Canal	1975	19,500	Fair
US 20 Ebl over Snake River;lorenzo Br.	1980	15,250	Fair
US 20 Wbl over Snake River;lorenzo Br.	1974	15,250	Fair