Home › Montana › Treasure County › Frontage Road 018 over Drainage 009

Frontage Road 018 over Drainage 009

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

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

Frontage Road 018 over Drainage 009 in Treasure County, Montana, is rated in poor condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
It was built in 1933 and reconstructed in 1955, making it 92 years old at the 2025 inventory.
It carries about 219 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 4 of the 26 inventoried bridges in Treasure County rated poor (15.4%); 4 (15.4%) 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 58 ft
Location	4M E Hysham
NBI structure number	L52086003+04001
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 Sep RR	1973	5,042	Good
I 94 over Int Hysham	1964	2,521	Good
I 94 over Int Hysham	1976	2,521	Good
I 94 over Sarpy Creek	1967	2,521	Good
I 94 over Sarpy Creek	1976	2,094	Good
Frontage Road 018 over Irrigation Ditch 001	1933	281	Poor