IRR - S 13 over W Fork Poplar R Overflow
FairRoosevelt County, Montana · 17M S Scobey · Structure no. P00032034+01281
- Built
- 2005
- 20 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 194 ft
- 2 main spans
- Daily traffic
- 229
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
IRR - S 13 over W Fork Poplar R Overflow is a prestressed concrete stringer/multi-beam or girder carrying IRR - S 13 over W Fork Poplar R Overflow in Roosevelt County, Montana. It was built in 2005, so it is 20 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 229 vehicles a day, roughly 11% of them trucks, projected to reach 240 by 2043. The structure is 194 ft (59.1 m) long and 34 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 | 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 IRR - S 13 over W Fork Poplar R Overflow built?
It was built in 2005, making it 20 years old in 2025.
What condition is IRR - S 13 over W Fork Poplar R Overflow 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 August 2024.
How much traffic does IRR - S 13 over W Fork Poplar R Overflow carry?
About 229 vehicles per day (2023 count), of which roughly 11% are trucks.
How long is IRR - S 13 over W Fork Poplar R Overflow?
The structure is 194 ft (59.1 m) long with a longest span of 96 ft (29.2 m) and a deck 34 ft wide.
Who owns IRR - S 13 over W Fork Poplar R Overflow?
It is owned by the State Highway Agency.