US 93 over Mill Creek
Ravalli County, Montana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 93 over Mill Creek in Ravalli County, Montana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2011, making it 14 years old at the 2025 inventory.
- It carries about 15,852 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 61 of the 150 inventoried bridges in Ravalli County rated good (40.7%); 12 (8.0%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated January 2024, on a 24-month routine inspection cycle.
- 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 → (46.34985, -114.14786)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 81 ft |
| Location | 4M S Victor |
| NBI structure number | P00007054+05471 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2024 |
| 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 Ravalli County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 93 over Corvallis Canal | 1980 | 14,714 | Good |
| US 93 over Bitterroot River | 2005 | 14,573 | Fair |
| US 93 over Blodgett Creek | 2008 | 14,573 | Fair |
| US 93 over S Fork Bear Creek | 2011 | 13,924 | Fair |
| US 93 over N Fork Bear Creek | 2011 | 13,924 | Good |
| US 93 over Sweathouse Creek | 2010 | 13,924 | Good |
All bridges nearby: Ravalli County, MT bridge conditions · every bridge in Ravalli County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.