Old Town RD over Jefferson River 004
Poor Condition129 years old100 vehicles/day
Location
| State | Montana |
| County | Gallatin |
| Location | 2m N Three Forks |
| Carries | Old Town RD |
| Crosses | Jefferson River 004 |
| Coordinates | 45.91408, -111.54265 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 192.9 ft (58.8 m) |
| Max Span | 129.9 ft (39.6 m) |
| Deck Width | 15.4 ft (4.7 m) |
| Deck Area | 276.4 sq m |
| Main Spans | 1 |
| Year Built | 1897 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is eligible for the National Register |
| Structure Number | L04419003+05001 |