I 15 over Int Craig
GoodLewis and Clark County, Montana · Craig · Structure no. I00015234+02161
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 124 ft
- 3 main spans
- Daily traffic
- 2,201
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I 15 over Int Craig is a prestressed concrete stringer/multi-beam or girder carrying I 15 over Int Craig in Lewis and Clark County, Montana. It was built in 1967, so it is 58 years old, older than the Montana average of 47 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,201 vehicles a day, roughly 16% of them trucks, projected to reach 2,343 by 2043. The structure is 124 ft (37.9 m) long and 39 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| 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 Craig built?
It was built in 1967, making it 58 years old in 2025.
What condition is I 15 over Int Craig in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2024.
How much traffic does I 15 over Int Craig carry?
About 2,201 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is I 15 over Int Craig?
The structure is 124 ft (37.9 m) long with a longest span of 51 ft (15.6 m) and a deck 39 ft wide.
Who owns I 15 over Int Craig?
It is owned by the State Highway Agency.