IRR - S 13 over W Fork Poplar R Ovrflow
PoorRoosevelt County, Montana · 17M S Scobey · Structure no. P00032033+06651
- Built
- 1932
- 93 years old, rebuilt 1976
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 77 ft
- 4 main spans
- Daily traffic
- 229
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
IRR - S 13 over W Fork Poplar R Ovrflow is a wood or timber stringer/multi-beam or girder carrying IRR - S 13 over W Fork Poplar R Ovrflow in Roosevelt County, Montana. It was built in 1932 and reconstructed in 1976, so it is 93 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 229 vehicles a day, roughly 11% of them trucks, projected to reach 240 by 2043. The structure is 77 ft (23.5 m) long and 27 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 | 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 Ovrflow built?
It was built in 1932, making it 93 years old in 2025. It was reconstructed in 1976.
What condition is IRR - S 13 over W Fork Poplar R Ovrflow 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 IRR - S 13 over W Fork Poplar R Ovrflow 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 Ovrflow?
The structure is 77 ft (23.5 m) long with a longest span of 19 ft (5.8 m) and a deck 27 ft wide.
Who owns IRR - S 13 over W Fork Poplar R Ovrflow?
It is owned by the State Highway Agency.