Gridley Colusa HWY over Schohr Drain
FairButte County, California · 0.6 MI E/O Colusa CO Line · Structure no. 12C0220
- Built
- 1958
- 67 years old
- Condition
- Fair
- inspected October 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 22 ft
- 2 main spans
- Daily traffic
- 1,139
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Gridley Colusa HWY over Schohr Drain is a concrete continuous culvert carrying Gridley Colusa HWY over Schohr Drain in Butte County, California. It was built in 1958, so it is 67 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 1,139 vehicles a day, roughly 31% of them trucks, projected to reach 914 by 2044. The structure is 22 ft (6.7 m) long and 33 ft wide. If it were closed, the detour would be 44.7 mi (72 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Gridley Colusa HWY over Schohr Drain built?
It was built in 1958, making it 67 years old in 2025.
What condition is Gridley Colusa HWY over Schohr Drain in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2024.
How much traffic does Gridley Colusa HWY over Schohr Drain carry?
About 1,139 vehicles per day (2019 count), of which roughly 31% are trucks.
How long is Gridley Colusa HWY over Schohr Drain?
The structure is 22 ft (6.7 m) long with a longest span of 10 ft (3 m) and a deck 33 ft wide.
Who owns Gridley Colusa HWY over Schohr Drain?
It is owned by the County Highway Agency.