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S 336-ollie Rd over Fork of Beaver Creek

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

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

S 336-ollie Rd over Fork of Beaver Creek in Fallon County, Montana, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
It was built in 2016, making it 9 years old at the 2025 inventory.
It carries about 31 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 17 of the 38 inventoried bridges in Fallon County rated good (44.7%); 2 (5.3%) are rated poor.
A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.

Component ratings


Structure	Prestressed concrete stringer or multi-beam girder
Length	about 105 ft
Location	20M NE Baker
NBI structure number	000000000006686
Condition class	Good

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
S 7-main St N over Sandstone Creek	1941	2,209	Poor
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