Waterloo RD over Jefferson River
Fair Condition65 years old242 vehicles/day
Location
| State | Montana |
| County | Jefferson |
| Location | 9m NE Silverstar |
| Carries | Waterloo RD |
| Crosses | Jefferson River |
| Coordinates | 45.74858, -112.19030 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 244.4 ft (74.5 m) |
| Max Span | 60.0 ft (18.3 m) |
| Deck Width | 26.9 ft (8.2 m) |
| Deck Area | 610.9 sq m |
| Main Spans | 4 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 242 (2023) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | S00422008+02531 |