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STC3840;2ND Fork over Squaw Creek

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

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

STC3840;2ND Fork over Squaw Creek in Gem 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 8 (very good condition) on the 0-9 scale.
It was built in 2016, making it 9 years old at the 2025 inventory.
It carries about 240 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 14 of the 57 inventoried bridges in Gem County rated good (24.6%); 3 (5.3%) 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	Steel stringer or multi-beam girder
Length	about 66 ft
Location	4.5 N. Ola
NBI structure number	000000000019966
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
SH 16 over Black Canyon Canal	1966	12,000	Fair
SH 52 over Farmers Coop Canal	1992	11,500	Good
SH 52 over Payette River;emmett Br.	1971	10,500	Fair
SH 52 over Farmers Coop Canal	2001	7,000	Good
SMA7190;SUBSTATION over Last Chance Canal	2016	6,800	Good
SH 52 over Drain Ditch	1988	3,500	Fair