Garner Lane over Keefer Slough
GoodButte County, California · 1.41 MI N State HWY 99E · Structure no. 12C0104
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 76 ft
- 3 main spans
- Daily traffic
- 4,389
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Garner Lane over Keefer Slough is a concrete continuous slab carrying Garner Lane over Keefer Slough in Butte County, California. It was built in 1992, so it is 33 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 4,389 vehicles a day, roughly 9% of them trucks, projected to reach 7,910 by 2042. The structure is 76 ft (23.2 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 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 Garner Lane over Keefer Slough built?
It was built in 1992, making it 33 years old in 2025.
What condition is Garner Lane over Keefer Slough 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 Garner Lane over Keefer Slough carry?
About 4,389 vehicles per day (2019 count), of which roughly 9% are trucks.
How long is Garner Lane over Keefer Slough?
The structure is 76 ft (23.2 m) long with a longest span of 30 ft (9.2 m) and a deck 40 ft wide.
Who owns Garner Lane over Keefer Slough?
It is owned by the County Highway Agency.