Head LN over Seven Mile Creek 149
FairPosted for loadLewis and Clark County, Montana · 5M NW Helena · Structure no. L25646001+04001
- Built
- 1982
- 43 years old, rebuilt 2023
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Other
- Length
- 24 ft
- 1 main span
- Daily traffic
- 354
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Head LN over Seven Mile Creek 149 is a other stringer/multi-beam or girder carrying Head LN over Seven Mile Creek 149 in Lewis and Clark County, Montana. It was built in 1982 and reconstructed in 2023, so it is 43 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 354 vehicles a day, projected to reach 372 by 2043. The structure is 24 ft (7.3 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Head LN over Seven Mile Creek 149 built?
It was built in 1982, making it 43 years old in 2025. It was reconstructed in 2023.
What condition is Head LN over Seven Mile Creek 149 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 June 2024.
How much traffic does Head LN over Seven Mile Creek 149 carry?
About 354 vehicles per day (2023 count).
How long is Head LN over Seven Mile Creek 149?
The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m) and a deck 26 ft wide.
Who owns Head LN over Seven Mile Creek 149?
It is owned by the County Highway Agency.