I 15 over Int Wolf Creek
FairLewis and Clark County, Montana · Wolf Creek · Structure no. I00015226+07632
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 114 ft
- 3 main spans
- Daily traffic
- 2,555
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 15 over Int Wolf Creek is a prestressed concrete stringer/multi-beam or girder carrying I 15 over Int Wolf Creek in Lewis and Clark 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 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 2,555 vehicles a day, roughly 21% of them trucks, projected to reach 2,771 by 2043. The structure is 114 ft (34.7 m) long and 36 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 | 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 I 15 over Int Wolf Creek built?
It was built in 1966, making it 59 years old in 2025.
What condition is I 15 over Int Wolf Creek 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 July 2024.
How much traffic does I 15 over Int Wolf Creek carry?
About 2,555 vehicles per day (2023 count), of which roughly 21% are trucks.
How long is I 15 over Int Wolf Creek?
The structure is 114 ft (34.7 m) long with a longest span of 52 ft (15.7 m) and a deck 36 ft wide.
Who owns I 15 over Int Wolf Creek?
It is owned by the State Highway Agency.