State Route 89 over Lake Almanor Spillway
GoodPlumas County, California · 02-PLU-089-29.97 · Structure no. 09 0080
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 467 ft
- 4 main spans
- Daily traffic
- 1,150
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 89 over Lake Almanor Spillway is a prestressed concrete continuous stringer/multi-beam or girder carrying State Route 89 over Lake Almanor Spillway in Plumas County, California. It was built in 2018, so it is 7 years old, younger than the California average of 54.8 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 1,150 vehicles a day, roughly 17% of them trucks, projected to reach 2,100 by 2040. The structure is 467 ft (142.2 m) long and 44 ft wide. If it were closed, the detour would be 5 mi (8 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 State Route 89 over Lake Almanor Spillway built?
It was built in 2018, making it 7 years old in 2025.
What condition is State Route 89 over Lake Almanor Spillway 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 June 2023.
How much traffic does State Route 89 over Lake Almanor Spillway carry?
About 1,150 vehicles per day (2009 count), of which roughly 17% are trucks.
How long is State Route 89 over Lake Almanor Spillway?
The structure is 467 ft (142.2 m) long with a longest span of 133 ft (40.5 m) and a deck 44 ft wide.
Who owns State Route 89 over Lake Almanor Spillway?
It is owned by the State Highway Agency.