W Reserve HWY over Big Muddy Creek Overflow
FairSheridan County, Montana · 1M E Reserve · Structure no. S00258000+08001
- Built
- 1949
- 76 years old
- Condition
- Fair
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 114 ft
- 5 main spans
- Daily traffic
- 151
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
W Reserve HWY over Big Muddy Creek Overflow is a wood or timber stringer/multi-beam or girder carrying W Reserve HWY over Big Muddy Creek Overflow in Sheridan County, Montana. It was built in 1949, so it is 76 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 151 vehicles a day, roughly 20% of them trucks, projected to reach 159 by 2043. The structure is 114 ft (34.7 m) long and 26 ft wide. If it were closed, the detour would be 24.2 mi (39 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 | 7 Good | Some minor problems. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 | 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 W Reserve HWY over Big Muddy Creek Overflow built?
It was built in 1949, making it 76 years old in 2025.
What condition is W Reserve HWY over Big Muddy Creek 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 W Reserve HWY over Big Muddy Creek Overflow carry?
About 151 vehicles per day (2023 count), of which roughly 20% are trucks.
How long is W Reserve HWY over Big Muddy Creek Overflow?
The structure is 114 ft (34.7 m) long with a longest span of 25 ft (7.6 m) and a deck 26 ft wide.
Who owns W Reserve HWY over Big Muddy Creek Overflow?
It is owned by the State Highway Agency.