US 93 over Grade Separation
FairLake County, Montana · 2M N Ravalli · Structure no. P00005029+02801
- Built
- 2006
- 19 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 67 ft
- 1 main span
- Daily traffic
- 7,746
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 93 over Grade Separation is a prestressed concrete stringer/multi-beam or girder carrying US 93 over Grade Separation in Lake County, Montana. It was built in 2006, so it is 19 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 7,746 vehicles a day, roughly 5% of them trucks, projected to reach 8,133 by 2043. The structure is 67 ft (20.3 m) long and 84 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 93 over Grade Separation built?
It was built in 2006, making it 19 years old in 2025.
What condition is US 93 over Grade Separation 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 June 2023.
How much traffic does US 93 over Grade Separation carry?
About 7,746 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 93 over Grade Separation?
The structure is 67 ft (20.3 m) long with a longest span of 67 ft (20.3 m) and a deck 84 ft wide.
Who owns US 93 over Grade Separation?
It is owned by the State Highway Agency.