7th LN NE over Drainage 128
FairPosted for loadTeton County, Montana · 12M NW Power · Structure no. L50035005+08001
- Built
- 1978
- 47 years old, rebuilt 1992
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 30 ft
- 1 main span
- Daily traffic
- 27
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
7th LN NE over Drainage 128 is a wood or timber stringer/multi-beam or girder carrying 7th LN NE over Drainage 128 in Teton County, Montana. It was built in 1978 and reconstructed in 1992, so it is 47 years old, younger 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 27 vehicles a day, roughly 3% of them trucks, projected to reach 28 by 2043. The structure is 30 ft (9.1 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 7th LN NE over Drainage 128 built?
It was built in 1978, making it 47 years old in 2025. It was reconstructed in 1992.
What condition is 7th LN NE over Drainage 128 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 January 2025.
How much traffic does 7th LN NE over Drainage 128 carry?
About 27 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is 7th LN NE over Drainage 128?
The structure is 30 ft (9.1 m) long with a longest span of 30 ft (9 m) and a deck 24 ft wide.
Who owns 7th LN NE over Drainage 128?
It is owned by the County Highway Agency.