I 15 over Wolf Creek
FairLewis and Clark County, Montana · Wolf Creek · Structure no. I00015226+03131
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected April 2024
- Type
- Culvert
- Steel
- Length
- 34 ft
- 2 main spans
- Daily traffic
- 5,109
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 15 over Wolf Creek is a steel culvert carrying I 15 over 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 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 5,109 vehicles a day, roughly 21% of them trucks, projected to reach 5,543 by 2043. The structure is 34 ft (10.3 m) long.
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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I 15 over Wolf Creek built?
It was built in 1966, making it 59 years old in 2025.
What condition is I 15 over 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 April 2024.
How much traffic does I 15 over Wolf Creek carry?
About 5,109 vehicles per day (2023 count), of which roughly 21% are trucks.
How long is I 15 over Wolf Creek?
The structure is 34 ft (10.3 m) long with a longest span of 14 ft (4.3 m).
Who owns I 15 over Wolf Creek?
It is owned by the State Highway Agency.