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S 7-main St N over Sandstone Creek

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

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

S 7-main St N over Sandstone Creek in Fallon 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 1941, making it 84 years old at the 2025 inventory.
It carries about 2,209 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 2 of the 38 inventoried bridges in Fallon County rated poor (5.3%); 2 (5.3%) 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 64 ft
Location	North Edge Baker
NBI structure number	P00027035+08231
Condition class	Poor

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

Bridge	Built	Vehicles/day	Condition
Lake St over Baker Lake Overflow	2009	2,393	Good
US 12 over Drainage	1998	1,600	Fair
US 12 over Timber Creek	1998	825	Fair
US 12 over Sandstone Creek	1998	753	Fair
US 12 over RR	1968	696	Fair
US 12 over O`fallon Creek	1971	516	Fair