Stibal LN over Red Rock River 053
PoorPosted for loadBeaverhead County, Montana · 9M NE Monida · Structure no. L01202052+06001
- Built
- 1975
- 50 years old
- Condition
- Poor
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 77 ft
- 2 main spans
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Stibal LN over Red Rock River 053 is a steel stringer/multi-beam or girder carrying Stibal LN over Red Rock River 053 in Beaverhead County, Montana. It was built in 1975, so it is 50 years old, older than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. 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 77 ft (23.5 m) long and 19 ft wide. If it were closed, the detour would be 24.9 mi (40 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Stibal LN over Red Rock River 053 built?
It was built in 1975, making it 50 years old in 2025.
What condition is Stibal LN over Red Rock River 053 in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.
How much traffic does Stibal LN over Red Rock River 053 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Stibal LN over Red Rock River 053?
The structure is 77 ft (23.5 m) long with a longest span of 37 ft (11.3 m) and a deck 19 ft wide.
Who owns Stibal LN over Red Rock River 053?
It is owned by the County Highway Agency.