Casablanca Road over Main Branch Alamo Creek
FairContra Costa County, California · .05 MI E of Knolls Creek. · Structure no. 28C0243
- Built
- 2006
- 19 years old
- Condition
- Fair
- inspected November 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 80 ft
- 1 main span
- Daily traffic
- 1,000
- 2013 count
- Owner
- County
- County Highway Agency
About this bridge
Casablanca Road over Main Branch Alamo Creek is a prestressed concrete box beam or girders - multiple carrying Casablanca Road over Main Branch Alamo Creek in Contra Costa County, California. It was built in 2006, so it is 19 years old, younger 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 1,000 vehicles a day, roughly 1% of them trucks, projected to reach 1,266 by 2046. The structure is 80 ft (24.4 m) long and 52 ft wide. If it were closed, the detour would be 0.6 mi (1 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 Casablanca Road over Main Branch Alamo Creek built?
It was built in 2006, making it 19 years old in 2025.
What condition is Casablanca Road over Main Branch Alamo 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 Casablanca Road over Main Branch Alamo Creek carry?
About 1,000 vehicles per day (2013 count), of which roughly 1% are trucks.
How long is Casablanca Road over Main Branch Alamo Creek?
The structure is 80 ft (24.4 m) long with a longest span of 77 ft (23.6 m) and a deck 52 ft wide.
Who owns Casablanca Road over Main Branch Alamo Creek?
It is owned by the County Highway Agency.