Pleasant Hill RD over Las Trampas Creek
FairContra Costa County, California · At Olympic Blvd · Structure no. 28C0105
- Built
- 1967
- 58 years old
- Condition
- Fair
- inspected December 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 99 ft
- 1 main span
- Daily traffic
- 15,780
- 2016 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Pleasant Hill RD over Las Trampas Creek is a prestressed concrete box beam or girders - multiple carrying Pleasant Hill RD over Las Trampas Creek in Contra Costa County, California. It was built in 1967, so it is 58 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 15,780 vehicles a day, roughly 4% of them trucks, projected to reach 27,625 by 2042. The structure is 99 ft (30.2 m) long and 94 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Pleasant Hill RD over Las Trampas Creek built?
It was built in 1967, making it 58 years old in 2025.
What condition is Pleasant Hill 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 Pleasant Hill RD over Las Trampas Creek carry?
About 15,780 vehicles per day (2016 count), of which roughly 4% are trucks.
How long is Pleasant Hill RD over Las Trampas Creek?
The structure is 99 ft (30.2 m) long with a longest span of 96 ft (29.3 m) and a deck 94 ft wide.
Who owns Pleasant Hill RD over Las Trampas Creek?
It is owned by the City or Municipal Highway Agency.