US 97ALT over Chelan River
GoodChelan County, Washington · 3.5 N JCT SR 971 End · Structure no. 0010859A0000000
- Built
- 1978
- 47 years old
- Condition
- Good
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 540 ft
- 4 main spans
- Daily traffic
- 7,454
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
US 97ALT over Chelan River is a prestressed concrete continuous stringer/multi-beam or girder carrying US 97ALT over Chelan River in Chelan County, Washington. It was built in 1978, so it is 47 years old, younger than the Washington average of 49.8 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 7,454 vehicles a day, roughly 5% of them trucks, projected to reach 6,660 by 2039. The structure is 540 ft (164.6 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 97ALT over Chelan River built?
It was built in 1978, making it 47 years old in 2025.
What condition is US 97ALT over Chelan River 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 US 97ALT over Chelan River carry?
About 7,454 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is US 97ALT over Chelan River?
The structure is 540 ft (164.6 m) long with a longest span of 135 ft (41.1 m) and a deck 47 ft wide.
Who owns US 97ALT over Chelan River?
It is owned by the State Highway Agency.