Olympic Blvd over Las Trampas Creek
FairContra Costa County, California · 0.1 MI SW of I-680 · Structure no. 28C0338
- Built
- 1963
- 62 years old, rebuilt 1994
- Condition
- Fair
- inspected November 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 103 ft
- 3 main spans
- Daily traffic
- 21,623
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Olympic Blvd over Las Trampas Creek is a concrete continuous tee beam carrying Olympic Blvd over Las Trampas Creek in Contra Costa County, California. It was built in 1963 and reconstructed in 1994, so it is 62 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 21,623 vehicles a day, roughly 4% of them trucks, projected to reach 23,050 by 2046. The structure is 103 ft (31.4 m) long and 75 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Olympic Blvd over Las Trampas Creek built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1994.
What condition is Olympic Blvd 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 November 2024.
How much traffic does Olympic Blvd over Las Trampas Creek carry?
About 21,623 vehicles per day (2013 count), of which roughly 4% are trucks.
How long is Olympic Blvd over Las Trampas Creek?
The structure is 103 ft (31.4 m) long with a longest span of 47 ft (14.2 m) and a deck 75 ft wide.
Who owns Olympic Blvd over Las Trampas Creek?
It is owned by the County Highway Agency.