Arroyo RD over Arroyo Mocho
FairAlameda County, California · 0.2 MI S College Ave · Structure no. 33C0195
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected November 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 156 ft
- 2 main spans
- Daily traffic
- 7,100
- 2009 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Arroyo RD over Arroyo Mocho is a prestressed concrete continuous box beam or girders - multiple carrying Arroyo RD over Arroyo Mocho in Alameda County, California. It was built in 1987, so it is 38 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 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 7,100 vehicles a day, roughly 5% of them trucks, projected to reach 16,246 by 2041. The structure is 156 ft (47.4 m) long and 64 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Arroyo RD over Arroyo Mocho built?
It was built in 1987, making it 38 years old in 2025.
What condition is Arroyo RD over Arroyo Mocho 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 2023.
How much traffic does Arroyo RD over Arroyo Mocho carry?
About 7,100 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is Arroyo RD over Arroyo Mocho?
The structure is 156 ft (47.4 m) long with a longest span of 76 ft (23.2 m) and a deck 64 ft wide.
Who owns Arroyo RD over Arroyo Mocho?
It is owned by the City or Municipal Highway Agency.