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Anderson Ln over Beaverhead River 071

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

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

Anderson Ln over Beaverhead River 071 in Beaverhead 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 5 (fair condition) on the 0-9 scale.
It was built in 1930, making it 95 years old at the 2025 inventory.
It carries about 54 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 150 of the 227 inventoried bridges in Beaverhead County rated fair (66.1%); 24 (10.6%) 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 Montana department of transportation.

Bridge	Built	Vehicles/day	Condition
S 89 over Local-blacktail Cr-rr	1974	4,241	Fair
S 89 over Int North Dillon I 15	1973	4,241	Fair
I 15 over Drainage Irr Ditch	1973	3,915	Fair
I 15 over Birch Creek	1973	3,852	Fair
I 15 over Int Jackson-hwy 278	1982	2,863	Fair
I 15 over Int Jackson-hwy 278	1982	2,863	Good