Reliez Station RD over Las Trampas Creek
FairContra Costa County, California · 0.1 MI N Olympic Blvd · Structure no. 28C0420
- Built
- 1937
- 88 years old, rebuilt 1955
- Condition
- Fair
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 90 ft
- 3 main spans
- Daily traffic
- 900
- 2016 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Reliez Station RD over Las Trampas Creek is a steel continuous stringer/multi-beam or girder carrying Reliez Station RD over Las Trampas Creek in Contra Costa County, California. It was built in 1937 and reconstructed in 1955, so it is 88 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 900 vehicles a day, roughly 1% of them trucks, projected to reach 1,224 by 2040. The structure is 90 ft (27.4 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Reliez Station RD over Las Trampas Creek built?
It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1955.
What condition is Reliez Station RD over Las Trampas 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 December 2023.
How much traffic does Reliez Station RD over Las Trampas Creek carry?
About 900 vehicles per day (2016 count), of which roughly 1% are trucks.
How long is Reliez Station RD over Las Trampas Creek?
The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.
Who owns Reliez Station RD over Las Trampas Creek?
It is owned by the City or Municipal Highway Agency.