IRR - US 89 over Kennedy Creek
GoodGlacier County, Montana · 3M N Babb · Structure no. P00058043+08951
- Built
- 1976
- 49 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 144 ft
- 2 main spans
- Daily traffic
- 510
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
IRR - US 89 over Kennedy Creek is a prestressed concrete stringer/multi-beam or girder carrying IRR - US 89 over Kennedy Creek in Glacier County, Montana. It was built in 1976, so it is 49 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 510 vehicles a day, roughly 3% of them trucks, projected to reach 536 by 2043. The structure is 144 ft (43.9 m) long and 46 ft wide. If it were closed, the detour would be 98.8 mi (159 km).
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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was IRR - US 89 over Kennedy Creek built?
It was built in 1976, making it 49 years old in 2025.
What condition is IRR - US 89 over Kennedy Creek 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 July 2024.
How much traffic does IRR - US 89 over Kennedy Creek carry?
About 510 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is IRR - US 89 over Kennedy Creek?
The structure is 144 ft (43.9 m) long with a longest span of 70 ft (21.3 m) and a deck 46 ft wide.
Who owns IRR - US 89 over Kennedy Creek?
It is owned by the State Highway Agency.