S 5 over Dahl Creek
PoorSheridan County, Montana · 12M SW Westby · Structure no. P00030011+03181
- Built
- 1939
- 86 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 59 ft
- 3 main spans
- Daily traffic
- 309
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 5 over Dahl Creek is a wood or timber stringer/multi-beam or girder carrying S 5 over Dahl Creek in Sheridan County, Montana. It was built in 1939, so it is 86 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.
It carries about 309 vehicles a day, roughly 26% of them trucks, projected to reach 324 by 2043. The structure is 59 ft (18 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 S 5 over Dahl Creek built?
It was built in 1939, making it 86 years old in 2025.
What condition is S 5 over Dahl Creek 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 August 2024.
How much traffic does S 5 over Dahl Creek carry?
About 309 vehicles per day (2023 count), of which roughly 26% are trucks.
How long is S 5 over Dahl Creek?
The structure is 59 ft (18 m) long with a longest span of 19 ft (5.8 m) and a deck 26 ft wide.
Who owns S 5 over Dahl Creek?
It is owned by the State Highway Agency.