IRR - S 13 over Little Wolf Creek
FairRoosevelt County, Montana · 2M E Wolf Point · Structure no. P00025050+03391
- Built
- 1978
- 47 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 72 ft
- 2 main spans
- Daily traffic
- 1,468
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
IRR - S 13 over Little Wolf Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR - S 13 over Little Wolf Creek in Roosevelt County, Montana. It was built in 1978, so it is 47 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 6 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 1,468 vehicles a day, roughly 3% of them trucks, projected to reach 1,541 by 2043. The structure is 72 ft (22 m) long and 48 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 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 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 IRR - S 13 over Little Wolf Creek built?
It was built in 1978, making it 47 years old in 2025.
What condition is IRR - S 13 over Little Wolf 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 December 2024.
How much traffic does IRR - S 13 over Little Wolf Creek carry?
About 1,468 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is IRR - S 13 over Little Wolf Creek?
The structure is 72 ft (22 m) long with a longest span of 35 ft (10.7 m) and a deck 48 ft wide.
Who owns IRR - S 13 over Little Wolf Creek?
It is owned by the State Highway Agency.