Nissen Lane over Dillon Canal 129
Good Condition16 years old100 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | 3m NE Dillon |
| Carries | Nissen Lane |
| Crosses | Dillon Canal 129 |
| Coordinates | 45.23279, -112.58713 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 22.0 ft (6.7 m) |
| Max Span | 20.3 ft (6.2 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 71.7 sq m |
| Main Spans | 1 |
| Year Built | 2010 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L01224000+09001 |