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Otter Creek Rd over Sweet Grass Creek 00

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

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

Otter Creek Rd over Sweet Grass Creek 00 in Sweet Grass 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 2009, making it 16 years old at the 2025 inventory.
It carries about 73 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 30 of the 94 inventoried bridges in Sweet Grass County rated good (31.9%); 6 (6.4%) 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 101 ft
Location	6M SE Melville
NBI structure number	L49007009+08001
Condition class	Good

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

Bridge	Built	Vehicles/day	Condition
I 90 over Spring Creek	1980	12,306	Fair
I 90 over Work Creek	1972	10,845	Fair
I 90 over Upper Deer Creek	1980	6,153	Fair
I 90 over Upper Deer Creek	1980	6,153	Fair
I 90 over Lower Deer Creek	1980	6,153	Fair
I 90 over Lower Deer Creek	1980	6,153	Good