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Carlyle Rd E over Beaver Creek

Wibaux County, Montana · rated Poor in the 2025 National Bridge Inventory

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

Carlyle Rd E over Beaver Creek in Wibaux County, Montana, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 4 (poor condition) on the 0-9 scale.
It was built in 1960, making it 65 years old at the 2025 inventory.
It carries about 38 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 1 of the 25 inventoried bridges in Wibaux County rated poor (4.0%); 1 (4.0%) are rated poor.
A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.

Component ratings


Structure	Timber stringer or multi-beam girder
Length	about 100 ft
Location	6M W Carlyle
NBI structure number	S00413023+09651
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
I 94 over Yates Creek	1962	3,592	Fair
I 94 over Yates Creek	2000	3,592	Fair
I 94 over Beaver Creek	1974	1,796	Fair
I 94 over Int Carlyle Rd	1974	1,796	Fair
I 94 over Int Carlyle Rd	1974	1,796	Fair
S 7 over Beaver Creek	1949	1,671	Fair