Powderville RD over Mizpah Creek 020
FairCuster County, Montana · 43M SE Miles City · Structure no. L09203013+02001
- Built
- 1931
- 94 years old, rebuilt 1986
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 76 ft
- 2 main spans
- Daily traffic
- 47
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Powderville RD over Mizpah Creek 020 is a steel stringer/multi-beam or girder carrying Powderville RD over Mizpah Creek 020 in Custer County, Montana. It was built in 1931 and reconstructed in 1986, so it is 94 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 47 vehicles a day, roughly 3% of them trucks, projected to reach 50 by 2043. The structure is 76 ft (23.2 m) long and 24 ft wide. If it were closed, the detour would be 55.3 mi (89 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Powderville RD over Mizpah Creek 020 built?
It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1986.
What condition is Powderville RD over Mizpah Creek 020 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 April 2023.
How much traffic does Powderville RD over Mizpah Creek 020 carry?
About 47 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Powderville RD over Mizpah Creek 020?
The structure is 76 ft (23.2 m) long with a longest span of 38 ft (11.6 m) and a deck 24 ft wide.
Who owns Powderville RD over Mizpah Creek 020?
It is owned by the County Highway Agency.