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Cataract Creek Rd over Cataract Creek 034

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

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

Cataract Creek Rd over Cataract Creek 034 in Jefferson County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1967, making it 58 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2025).
Its listed owner is the county highway agency.
It is one of 103 of the 136 inventoried bridges in Jefferson County rated fair (75.7%); 7 (5.1%) 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	Timber stringer or multi-beam girder
Length	about 33 ft
Location	1M N Basin
NBI structure number	L22015001+03001
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
I 15 over Prickly Pear Creek	1969	5,987	Fair
I 15 over Prickly Pear Creek	1969	5,987	Fair
S 518 over Int Montana City-i 15	1968	5,885	Good
I 90 over Int Cardwell-s 359	1968	5,599	Fair
I 90 over Int Cardwell-s 359	1968	5,599	Fair
I 90 Eastbound over Boulder River	1968	5,599	Good