State Route 4 WB over BNSF RY & AMTRAK
GoodContra Costa County, California · 04-CC-004-R3.66L-MTZ · Structure no. 28 0360L
- Built
- 2001
- 24 years old
- Condition
- Good
- inspected May 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 860 ft
- 4 main spans
- Daily traffic
- 21,750
- 2018 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 4 WB over BNSF RY & AMTRAK is a prestressed concrete continuous box beam or girders - multiple carrying State Route 4 WB over BNSF RY & AMTRAK in Contra Costa County, California. It was built in 2001, so it is 24 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 21,750 vehicles a day, projected to reach 41,199 by 2042. The structure is 860 ft (262 m) long and 58 ft wide. If it were closed, the detour would be 11.2 mi (18 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 4 WB over BNSF RY & AMTRAK built?
It was built in 2001, making it 24 years old in 2025.
What condition is State Route 4 WB over BNSF RY & AMTRAK 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 May 2024.
How much traffic does State Route 4 WB over BNSF RY & AMTRAK carry?
About 21,750 vehicles per day (2018 count).
How long is State Route 4 WB over BNSF RY & AMTRAK?
The structure is 860 ft (262 m) long with a longest span of 290 ft (88.5 m) and a deck 58 ft wide.
Who owns State Route 4 WB over BNSF RY & AMTRAK?
It is owned by the State Highway Agency.