State Route 4 EB over Rodeo Creek
FairContra Costa County, California · 04-CC-004-R1.96R · Structure no. 28 0038R
- Built
- 1920
- 105 years old, rebuilt 1969
- Condition
- Fair
- inspected May 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 95 ft
- 3 main spans
- Daily traffic
- 20,250
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 4 EB over Rodeo Creek is a concrete continuous tee beam carrying State Route 4 EB over Rodeo Creek in Contra Costa County, California. It was built in 1920 and reconstructed in 1969, so it is 105 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 20,250 vehicles a day, roughly 8% of them trucks, projected to reach 40,584 by 2042. The structure is 95 ft (29 m) long and 42 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 4 EB over Rodeo Creek built?
It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1969.
What condition is State Route 4 EB over Rodeo Creek 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 2024.
How much traffic does State Route 4 EB over Rodeo Creek carry?
About 20,250 vehicles per day (2018 count), of which roughly 8% are trucks.
How long is State Route 4 EB over Rodeo Creek?
The structure is 95 ft (29 m) long with a longest span of 42 ft (12.8 m) and a deck 42 ft wide.
Who owns State Route 4 EB over Rodeo Creek?
It is owned by the State Highway Agency.