Steel Bridge Ln over Red Rock River 084

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

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

• Steel Bridge Ln over Red Rock River 084 in Beaverhead 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 2024, making it 1 years old at the 2025 inventory.
• It carries about 75 vehicles a day (traffic count year 2023).
• Its listed owner is the county highway agency.
• It is one of 53 of the 227 inventoried bridges in Beaverhead County rated good (23.3%); 24 (10.6%) are rated poor.
• Its traffic status in the 2025 inventory is posted for load (NBI item 41).
• It does not appear under this structure number in the 2024 inventory (a new or renumbered structure).
• Its most recent inspection on record is dated November 2024, on a 24-month routine inspection cycle.
• It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
• 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.

View this bridge on a map → (44.67537, -112.62378)

Component ratings

Bridge details

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

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Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.