Midway RD over Biggs Extension Canal
FairButte County, California · 1 MI S Richvale HWY · Structure no. 12C0215
- Built
- 1936
- 89 years old
- Condition
- Fair
- inspected February 2025
- Type
- Slab
- Concrete Continuous
- Length
- 30 ft
- 2 main spans
- Daily traffic
- 749
- 2017 count
- Owner
- County
- County Highway Agency
About this bridge
Midway RD over Biggs Extension Canal is a concrete continuous slab carrying Midway RD over Biggs Extension Canal in Butte County, California. It was built in 1936, so it is 89 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 5 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 749 vehicles a day, roughly 17% of them trucks, projected to reach 872 by 2045. The structure is 30 ft (9.1 m) long and 28 ft wide. If it were closed, the detour would be 8.7 mi (14 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Midway RD over Biggs Extension Canal built?
It was built in 1936, making it 89 years old in 2025.
What condition is Midway RD over Biggs Extension Canal 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 February 2025.
How much traffic does Midway RD over Biggs Extension Canal carry?
About 749 vehicles per day (2017 count), of which roughly 17% are trucks.
How long is Midway RD over Biggs Extension Canal?
The structure is 30 ft (9.1 m) long with a longest span of 15 ft (4.5 m) and a deck 28 ft wide.
Who owns Midway RD over Biggs Extension Canal?
It is owned by the County Highway Agency.