State Route 99 over Drainage Ditch
GoodButte County, California · 03-BUT-099-6.11 · Structure no. 12 0002
- Built
- 1988
- 37 years old
- Condition
- Good
- inspected April 2021
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 53 ft
- 1 main span
- Daily traffic
- 13,400
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 99 over Drainage Ditch is a prestressed concrete box beam or girders - multiple carrying State Route 99 over Drainage Ditch in Butte County, California. It was built in 1988, so it is 37 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 13,400 vehicles a day, roughly 10% of them trucks, projected to reach 25,345 by 2043. The structure is 53 ft (16.2 m) long and 56 ft wide. If it were closed, the detour would be 9.9 mi (16 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 99 over Drainage Ditch built?
It was built in 1988, making it 37 years old in 2025.
What condition is State Route 99 over Drainage Ditch 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 April 2021.
How much traffic does State Route 99 over Drainage Ditch carry?
About 13,400 vehicles per day (2009 count), of which roughly 10% are trucks.
How long is State Route 99 over Drainage Ditch?
The structure is 53 ft (16.2 m) long with a longest span of 52 ft (15.7 m) and a deck 56 ft wide.
Who owns State Route 99 over Drainage Ditch?
It is owned by the State Highway Agency.