I 90 over Sep Indian CR Frontage R
FairYellowstone County, Montana · 13M E Billings · Structure no. I00090465+07401
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 79 ft
- 3 main spans
- Daily traffic
- 3,946
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 90 over Sep Indian CR Frontage R is a concrete continuous slab carrying I 90 over Sep Indian CR Frontage R in Yellowstone County, Montana. It was built in 1972, so it is 53 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 3,946 vehicles a day, roughly 22% of them trucks, projected to reach 4,143 by 2043. The structure is 79 ft (24.1 m) long and 44 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 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 I 90 over Sep Indian CR Frontage R built?
It was built in 1972, making it 53 years old in 2025.
What condition is I 90 over Sep Indian CR Frontage R 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 October 2024.
How much traffic does I 90 over Sep Indian CR Frontage R carry?
About 3,946 vehicles per day (2023 count), of which roughly 22% are trucks.
How long is I 90 over Sep Indian CR Frontage R?
The structure is 79 ft (24.1 m) long with a longest span of 30 ft (9.1 m) and a deck 44 ft wide.
Who owns I 90 over Sep Indian CR Frontage R?
It is owned by the State Highway Agency.