S 27th ST over Int 27th ST I 90
FairYellowstone County, Montana · Billings-S 27th ST · Structure no. P00053000+00001
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 221 ft
- 4 main spans
- Daily traffic
- 9,538
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
S 27th ST over Int 27th ST I 90 is a prestressed concrete stringer/multi-beam or girder carrying S 27th ST over Int 27th ST I 90 in Yellowstone County, Montana. It was built in 1966, so it is 59 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 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 9,538 vehicles a day, roughly 4% of them trucks, projected to reach 10,015 by 2043. The structure is 221 ft (67.3 m) long and 72 ft wide.
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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was S 27th ST over Int 27th ST I 90 built?
It was built in 1966, making it 59 years old in 2025.
What condition is S 27th ST over Int 27th ST I 90 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 April 2024.
How much traffic does S 27th ST over Int 27th ST I 90 carry?
About 9,538 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is S 27th ST over Int 27th ST I 90?
The structure is 221 ft (67.3 m) long with a longest span of 67 ft (20.4 m) and a deck 72 ft wide.
Who owns S 27th ST over Int 27th ST I 90?
It is owned by the State Highway Agency.