US 94 over Tongue River
FairCuster County, Montana · SW Edge Miles City · Structure no. P00002002+02721
- Built
- 2007
- 18 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 325 ft
- 3 main spans
- Daily traffic
- 2,771
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 94 over Tongue River is a prestressed concrete stringer/multi-beam or girder carrying US 94 over Tongue River in Custer County, Montana. It was built in 2007, so it is 18 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 2,771 vehicles a day, roughly 4% of them trucks, projected to reach 2,910 by 2043. The structure is 325 ft (99.1 m) long and 59 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 94 over Tongue River built?
It was built in 2007, making it 18 years old in 2025.
What condition is US 94 over Tongue 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 November 2024.
How much traffic does US 94 over Tongue River carry?
About 2,771 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is US 94 over Tongue River?
The structure is 325 ft (99.1 m) long with a longest span of 118 ft (36 m) and a deck 59 ft wide.
Who owns US 94 over Tongue River?
It is owned by the State Highway Agency.