US 89 over Dupuyer Creek
GoodPondera County, Montana · Dupuyer · Structure no. P00003075+05561
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected November 2023
- Type
- Slab
- Concrete Continuous
- Length
- 177 ft
- 6 main spans
- Daily traffic
- 543
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 89 over Dupuyer Creek is a concrete continuous slab carrying US 89 over Dupuyer Creek in Pondera County, Montana. It was built in 1980, so it is 45 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 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 543 vehicles a day, roughly 6% of them trucks, projected to reach 570 by 2043. The structure is 177 ft (53.9 m) long and 40 ft wide. If it were closed, the detour would be 64 mi (103 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 | 7 Good | Some minor problems. |
| 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 US 89 over Dupuyer Creek built?
It was built in 1980, making it 45 years old in 2025.
What condition is US 89 over Dupuyer 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 November 2023.
How much traffic does US 89 over Dupuyer Creek carry?
About 543 vehicles per day (2023 count), of which roughly 6% are trucks.
How long is US 89 over Dupuyer Creek?
The structure is 177 ft (53.9 m) long with a longest span of 33 ft (10.2 m) and a deck 40 ft wide.
Who owns US 89 over Dupuyer Creek?
It is owned by the State Highway Agency.