Old Town Rd over Jefferson River 063
Gallatin County, Montana · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Old Town Rd over Jefferson River 063 in Gallatin County, Montana, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1894 and reconstructed in 1984, making it 131 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2025).
- Its listed owner is the county highway agency.
- It is one of 12 of the 212 inventoried bridges in Gallatin County rated poor (5.7%); 12 (5.7%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (45.91055, -111.53834)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 3 | Serious condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Steel through truss |
| Length | about 155 ft |
| Location | 2M N Three Forks |
| NBI structure number | L16201000+07001 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Montana department of transportation.
Busiest bridges in Gallatin County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| N Seventh Ave over Int N 7TH Ave-i 90 | 2014 | 26,020 | Fair |
| US 191-huffine Ln over Hyalite Creek | 1956 | 25,670 | Fair |
| N 19TH Ave over Int N 19TH Ave | 1994 | 23,992 | Fair |
| I 90 over Walking Path | 2011 | 21,232 | Fair |
| I 90 over Int Airway Blvd | 2014 | 15,554 | Fair |
| I 90 over Int Airway Blvd | 2014 | 15,554 | Fair |
All bridges nearby: Gallatin County, MT bridge conditions · every bridge in Gallatin County · Montana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.