Mines Road over Arroyo Mocho
PoorAlameda County, California · 13.8 MI S/E Tesla RD · Structure no. 33C0121
- Built
- 1988
- 37 years old
- Condition
- Poor
- inspected November 2023
- Type
- Tee Beam
- Concrete Continuous
- Length
- 82 ft
- 2 main spans
- Daily traffic
- 500
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Mines Road over Arroyo Mocho is a concrete continuous tee beam carrying Mines Road over Arroyo Mocho in Alameda County, California. It was built in 1988, so it is 37 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 500 vehicles a day, roughly 5% of them trucks, projected to reach 546 by 2041. The structure is 82 ft (25 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, 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 Mines Road over Arroyo Mocho built?
It was built in 1988, making it 37 years old in 2025.
What condition is Mines Road over Arroyo Mocho in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.
How much traffic does Mines Road over Arroyo Mocho carry?
About 500 vehicles per day (2014 count), of which roughly 5% are trucks.
How long is Mines Road over Arroyo Mocho?
The structure is 82 ft (25 m) long with a longest span of 37 ft (11.4 m) and a deck 33 ft wide.
Who owns Mines Road over Arroyo Mocho?
It is owned by the County Highway Agency.