IRR - US 89 over Lake Creek
GoodGlacier County, Montana · 1M N Kiowa · Structure no. 000000000007046
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 78 ft
- 1 main span
- Daily traffic
- 1,148
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
IRR - US 89 over Lake Creek is a prestressed concrete tee beam carrying IRR - US 89 over Lake Creek in Glacier County, Montana. It was built in 2018, so it is 7 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,148 vehicles a day, roughly 1% of them trucks, projected to reach 1,349 by 2043. The structure is 78 ft (23.7 m) long and 43 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 Lake Creek built?
It was built in 2018, making it 7 years old in 2025.
What condition is IRR - US 89 over Lake 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 September 2024.
How much traffic does IRR - US 89 over Lake Creek carry?
About 1,148 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is IRR - US 89 over Lake Creek?
The structure is 78 ft (23.7 m) long with a longest span of 75 ft (22.9 m) and a deck 43 ft wide.
Who owns IRR - US 89 over Lake Creek?
It is owned by the State Highway Agency.