Trunk Butte RD over No Name Coulee 078
FairPosted for loadPondera County, Montana · 7M N Williams · Structure no. L37043007+00001
- Built
- 1960
- 65 years old
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 71 ft
- 3 main spans
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Trunk Butte RD over No Name Coulee 078 is a wood or timber stringer/multi-beam or girder carrying Trunk Butte RD over No Name Coulee 078 in Pondera County, Montana. It was built in 1960, so it is 65 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 71 ft (21.6 m) long and 24 ft wide. If it were closed, the detour would be 11.2 mi (18 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 Trunk Butte RD over No Name Coulee 078 built?
It was built in 1960, making it 65 years old in 2025.
What condition is Trunk Butte RD over No Name Coulee 078 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 October 2024.
How much traffic does Trunk Butte RD over No Name Coulee 078 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Trunk Butte RD over No Name Coulee 078?
The structure is 71 ft (21.6 m) long with a longest span of 23 ft (7 m) and a deck 24 ft wide.
Who owns Trunk Butte RD over No Name Coulee 078?
It is owned by the County Highway Agency.