Chalk Butte RD over Plentywood Creek 009
FairClosed to trafficSheridan County, Montana · 5M SE Outlook · Structure no. L46005004+03001
- Built
- 1970
- 55 years old, rebuilt 2004
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 71 ft
- 3 main spans
- Daily traffic
- 26
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Chalk Butte RD over Plentywood Creek 009 is a steel stringer/multi-beam or girder carrying Chalk Butte RD over Plentywood Creek 009 in Sheridan County, Montana. It was built in 1970 and reconstructed in 2004, so it is 55 years old, older than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: closed to all traffic.
It carries about 26 vehicles a day, roughly 3% of them trucks, projected to reach 27 by 2043. The structure is 71 ft (21.5 m) long and 25 ft wide. If it were closed, the detour would be 9.9 mi (16 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Chalk Butte RD over Plentywood Creek 009 built?
It was built in 1970, making it 55 years old in 2025. It was reconstructed in 2004.
What condition is Chalk Butte RD over Plentywood Creek 009 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.
How much traffic does Chalk Butte RD over Plentywood Creek 009 carry?
About 26 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Chalk Butte RD over Plentywood Creek 009?
The structure is 71 ft (21.5 m) long with a longest span of 26 ft (7.9 m) and a deck 25 ft wide.
Who owns Chalk Butte RD over Plentywood Creek 009?
It is owned by the County Highway Agency.