S 5 over Marron Creek
FairSheridan County, Montana · 1M E Plentywood · Structure no. P00022043+03681
- Built
- 1983
- 42 years old
- Condition
- Fair
- inspected September 2023
- Type
- Culvert
- Steel
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 1,559
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 5 over Marron Creek is a steel culvert carrying S 5 over Marron Creek in Sheridan County, Montana. It was built in 1983, so it is 42 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.
It carries about 1,559 vehicles a day, roughly 11% of them trucks, projected to reach 1,637 by 2043. The structure is 25 ft (7.7 m) long. 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 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 5 over Marron Creek built?
It was built in 1983, making it 42 years old in 2025.
What condition is S 5 over Marron Creek 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 September 2023.
How much traffic does S 5 over Marron Creek carry?
About 1,559 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is S 5 over Marron Creek?
The structure is 25 ft (7.7 m) long with a longest span of 11 ft (3.5 m).
Who owns S 5 over Marron Creek?
It is owned by the State Highway Agency.