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Hammer Cutoff Rd over Libby Creek

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

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

Hammer Cutoff Rd over Libby Creek in Lincoln County, Montana, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the substructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1972, making it 53 years old at the 2025 inventory.
It carries about 324 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 92 of the 191 inventoried bridges in Lincoln County rated fair (48.2%); 29 (15.2%) 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


Structure	Prestressed concrete tee beam
Length	about 102 ft
Location	9M S Libby
NBI structure number	S00482006+08931
Condition class	Fair

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

Bridge	Built	Vehicles/day	Condition
US 2 over Flower Creek	1970	8,882	Good
California Ave over Kootenai River	1959	5,674	Fair
US 2 over Big Cherry Creek	1976	5,295	Poor
California Ave over RR	1999	4,833	Good
US 2 over Callahan Creek	1989	3,671	Fair
US 2 over Lake Creek	1989	3,377	Fair