Cottonwood RD over Boulder River 009
GoodPosted for loadJefferson County, Montana · 1M NE Cardwell · Structure no. L22319001+00001
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected May 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 79 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Cottonwood RD over Boulder River 009 is a prestressed concrete tee beam carrying Cottonwood RD over Boulder River 009 in Jefferson County, Montana. It was built in 1983, so it is 42 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. Its operating status is: posted for load restriction.
It carries about 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 79 ft (24.1 m) long and 16 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cottonwood RD over Boulder River 009 built?
It was built in 1983, making it 42 years old in 2025.
What condition is Cottonwood RD over Boulder River 009 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 May 2023.
How much traffic does Cottonwood RD over Boulder River 009 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Cottonwood RD over Boulder River 009?
The structure is 79 ft (24.1 m) long with a longest span of 78 ft (23.8 m) and a deck 16 ft wide.
Who owns Cottonwood RD over Boulder River 009?
It is owned by the County Highway Agency.