Petrolia Bench RD over Mcdonald Creek 003
FairPosted for loadPetroleum County, Montana · 9M E Winnett · Structure no. L35008002+01001
- Built
- 1940
- 85 years old, rebuilt 1984
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 40 ft
- 1 main span
- Daily traffic
- 46
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Petrolia Bench RD over Mcdonald Creek 003 is a steel stringer/multi-beam or girder carrying Petrolia Bench RD over Mcdonald Creek 003 in Petroleum County, Montana. It was built in 1940 and reconstructed in 1984, so it is 85 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. Its operating status is: posted for load restriction.
It carries about 46 vehicles a day, roughly 3% of them trucks, projected to reach 49 by 2043. The structure is 40 ft (12.2 m) long and 16 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Petrolia Bench RD over Mcdonald Creek 003 built?
It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1984.
What condition is Petrolia Bench RD over Mcdonald Creek 003 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 Petrolia Bench RD over Mcdonald Creek 003 carry?
About 46 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Petrolia Bench RD over Mcdonald Creek 003?
The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 16 ft wide.
Who owns Petrolia Bench RD over Mcdonald Creek 003?
It is owned by the County Highway Agency.