Main ST over Bergman Slough 019
FairPosted for loadGranite County, Montana · Drummond-Main Street · Structure no. M20035000+00101
- Built
- 1934
- 91 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 26 ft
- 1 main span
- Daily traffic
- 457
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Main ST over Bergman Slough 019 is a wood or timber stringer/multi-beam or girder carrying Main ST over Bergman Slough 019 in Granite County, Montana. It was built in 1934, so it is 91 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: posted for load restriction.
It carries about 457 vehicles a day, roughly 3% of them trucks, projected to reach 487 by 2043. The structure is 26 ft (7.9 m) long and 22 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Main ST over Bergman Slough 019 built?
It was built in 1934, making it 91 years old in 2025.
What condition is Main ST over Bergman Slough 019 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 July 2024.
How much traffic does Main ST over Bergman Slough 019 carry?
About 457 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Main ST over Bergman Slough 019?
The structure is 26 ft (7.9 m) long with a longest span of 25 ft (7.6 m) and a deck 22 ft wide.
Who owns Main ST over Bergman Slough 019?
It is owned by the County Highway Agency.