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Whitney Creek Rd over O`fallon Creek 017

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

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled

View this bridge on a map → (46.67063, -104.96389)

Component ratings

ComponentRating (2024)Rating (2025)FHWA scale meaning
Deck77Good condition
Superstructure88Very good condition
Substructure77Good condition

Bridge details

StructurePrestressed concrete stringer or multi-beam girder
Lengthabout 202 ft
LocationSW Mildred
NBI structure numberL40105024+08001
Condition classGood
Traffic status (item 41)Open, no restriction
Last inspection (item 90)October 2023
Inspection interval (item 91)24 months
Scour (item 113)8: foundations stable, scour above the top of the footing

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

Busiest bridges in Prairie County

BridgeBuiltVehicles/dayCondition
I 94 over Ash Creek19693,878Fair
I 94 over Int Powder River19713,045Fair
I 94 over RR19772,219Fair
I 94 over Yellowstone River19782,219Fair
I 94 over Yellowstone River19782,219Fair
I 94 over Sep Montana Road19712,137Fair

All bridges nearby: Prairie County, MT bridge conditions · every bridge in Prairie County · Montana bridges.

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