S 24 over Milk River
FairValley County, Montana · 3M SE Glasgow · Structure no. P00042072+05701
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 422 ft
- 5 main spans
- Daily traffic
- 912
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 24 over Milk River is a prestressed concrete stringer/multi-beam or girder carrying S 24 over Milk River in Valley County, Montana. It was built in 1992, so it is 33 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 912 vehicles a day, roughly 1% of them trucks, projected to reach 958 by 2043. The structure is 422 ft (128.6 m) long and 38 ft wide. If it were closed, the detour would be 39.8 mi (64 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 24 over Milk River built?
It was built in 1992, making it 33 years old in 2025.
What condition is S 24 over Milk River 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 S 24 over Milk River carry?
About 912 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is S 24 over Milk River?
The structure is 422 ft (128.6 m) long with a longest span of 91 ft (27.7 m) and a deck 38 ft wide.
Who owns S 24 over Milk River?
It is owned by the State Highway Agency.