East 20th ST EB over State Route 99
FairButte County, California · 03-BUT-099-R31.50-CHC · Structure no. 12 0169R
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected May 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 176 ft
- 4 main spans
- Daily traffic
- 20,300
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
East 20th ST EB over State Route 99 is a concrete continuous tee beam carrying East 20th ST EB over State Route 99 in Butte County, California. It was built in 1965, so it is 60 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 20,300 vehicles a day, roughly 1% of them trucks, projected to reach 28,007 by 2041. The structure is 176 ft (53.6 m) long and 39 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was East 20th ST EB over State Route 99 built?
It was built in 1965, making it 60 years old in 2025.
What condition is East 20th ST EB over State Route 99 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 May 2023.
How much traffic does East 20th ST EB over State Route 99 carry?
About 20,300 vehicles per day (2020 count), of which roughly 1% are trucks.
How long is East 20th ST EB over State Route 99?
The structure is 176 ft (53.6 m) long with a longest span of 58 ft (17.8 m) and a deck 39 ft wide.
Who owns East 20th ST EB over State Route 99?
It is owned by the State Highway Agency.