Nissen Lane over Dillon Canal 129
GoodBeaverhead County, Montana · 3M NE Dillon · Structure no. L01224000+09001
- Built
- 2010
- 15 years old
- Condition
- Good
- inspected November 2023
- Type
- Slab
- Concrete
- Length
- 22 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Nissen Lane over Dillon Canal 129 is a concrete slab carrying Nissen Lane over Dillon Canal 129 in Beaverhead County, Montana. It was built in 2010, so it is 15 years old, younger than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 22 ft (6.7 m) long and 35 ft wide. If it were closed, the detour would be 6.8 mi (11 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nissen Lane over Dillon Canal 129 built?
It was built in 2010, making it 15 years old in 2025.
What condition is Nissen Lane over Dillon Canal 129 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.
How much traffic does Nissen Lane over Dillon Canal 129 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Nissen Lane over Dillon Canal 129?
The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.2 m) and a deck 35 ft wide.
Who owns Nissen Lane over Dillon Canal 129?
It is owned by the County Highway Agency.