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Irr - US 93 over Jocko River

Lake County, Montana · rated Good in the 2025 National Bridge Inventory

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

Irr - US 93 over Jocko River in Lake County, Montana, 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 2005, making it 20 years old at the 2025 inventory.
It carries about 8,775 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 70 of the 116 inventoried bridges in Lake County rated good (60.3%); 13 (11.2%) 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	Prestressed concrete stringer or multi-beam girder
Length	about 399 ft
Location	Arlee
NBI structure number	P00005018+09461
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
Irr - US 93 over Pablo Feeder Canal	2006	15,997	Good
US 93 over Wildlife Crossing	2007	10,897	Good
US 93 over Wildlife Crossing	2007	10,897	Good
US 93 over Agricultural Crossing	2007	10,897	Good
US 93 over Spring Creek	2006	8,775	Good
US 93 over Wildlife Underpass	2006	8,775	Good