Dearborn Canyon RD over Dearborn River 048
GoodLewis and Clark County, Montana · 1M SW Bean Lake · Structure no. L25420002+01001
- Built
- 1982
- 43 years old
- Condition
- Good
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 52 ft
- 1 main span
- Daily traffic
- 118
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Dearborn Canyon RD over Dearborn River 048 is a steel stringer/multi-beam or girder carrying Dearborn Canyon RD over Dearborn River 048 in Lewis and Clark County, Montana. It was built in 1982, so it is 43 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 118 vehicles a day, roughly 3% of them trucks, projected to reach 124 by 2043. The structure is 52 ft (15.8 m) long and 14 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dearborn Canyon RD over Dearborn River 048 built?
It was built in 1982, making it 43 years old in 2025.
What condition is Dearborn Canyon RD over Dearborn River 048 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 October 2024.
How much traffic does Dearborn Canyon RD over Dearborn River 048 carry?
About 118 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Dearborn Canyon RD over Dearborn River 048?
The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 14 ft wide.
Who owns Dearborn Canyon RD over Dearborn River 048?
It is owned by the County Highway Agency.