Slab RD over Big Muddy Creek 038
FairRoosevelt County, Montana · 10M NW Culbertson · Structure no. L43429001+00001
- Built
- 1950
- 75 years old, rebuilt 1997
- Condition
- Fair
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 52 ft
- 1 main span
- Daily traffic
- 100
- 2025 count
- Owner
- County
- County Highway Agency
About this bridge
Slab RD over Big Muddy Creek 038 is a steel stringer/multi-beam or girder carrying Slab RD over Big Muddy Creek 038 in Roosevelt County, Montana. It was built in 1950 and reconstructed in 1997, so it is 75 years old, older 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 100 vehicles a day, roughly 3% of them trucks, projected to reach 100 by 2040. The structure is 52 ft (15.7 m) long and 24 ft wide. If it were closed, the detour would be 11.8 mi (19 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 Slab RD over Big Muddy Creek 038 built?
It was built in 1950, making it 75 years old in 2025. It was reconstructed in 1997.
What condition is Slab RD over Big Muddy Creek 038 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 November 2023.
How much traffic does Slab RD over Big Muddy Creek 038 carry?
About 100 vehicles per day (2025 count), of which roughly 3% are trucks.
How long is Slab RD over Big Muddy Creek 038?
The structure is 52 ft (15.7 m) long with a longest span of 47 ft (14.2 m) and a deck 24 ft wide.
Who owns Slab RD over Big Muddy Creek 038?
It is owned by the County Highway Agency.