US 12 over Deep Creek
Broadwater County, Montana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 12 over Deep Creek in Broadwater 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 2015, making it 10 years old at the 2025 inventory.
- It carries about 720 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 10 of the 37 inventoried bridges in Broadwater County rated good (27.0%); 4 (10.8%) 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.
View this bridge on a map → (46.33379, -111.22081)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 73 ft |
| Location | 14M E Townsend |
| NBI structure number | P00014014+08001 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Montana department of transportation.
Busiest bridges in Broadwater County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US287 over Beaver Creek | 1992 | 6,930 | Fair |
| US 12 over Missouri River | 1935 | 6,843 | Fair |
| US 287 over Mud Spring Gulch | 2013 | 6,444 | Good |
| US 287 over Int Three Forks I 90 | 2012 | 6,444 | Fair |
| US 287 over Deep Creek | 2012 | 5,485 | Fair |
| US 287 over Six Mile Creek | 2020 | 5,250 | Good |
All bridges nearby: Broadwater County, MT bridge conditions · every bridge in Broadwater County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.