Del Valle RD over Lake Del Valle
PoorAlameda County, California · 5 MI South of Mines RD · Structure no. 33C0447
- Built
- 1964
- 61 years old
- Condition
- Poor
- inspected November 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 474 ft
- 5 main spans
- Daily traffic
- 900
- 2014 count
- Owner
- County
- County Highway Agency
About this bridge
Del Valle RD over Lake Del Valle is a prestressed concrete continuous box beam or girders - multiple carrying Del Valle RD over Lake Del Valle in Alameda County, California. It was built in 1964, so it is 61 years old, older 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 900 vehicles a day, roughly 5% of them trucks, projected to reach 546 by 2041. The structure is 474 ft (144.6 m) long and 42 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Del Valle RD over Lake Del Valle built?
It was built in 1964, making it 61 years old in 2025.
What condition is Del Valle RD over Lake Del Valle 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 Del Valle RD over Lake Del Valle carry?
About 900 vehicles per day (2014 count), of which roughly 5% are trucks.
How long is Del Valle RD over Lake Del Valle?
The structure is 474 ft (144.6 m) long with a longest span of 101 ft (30.8 m) and a deck 42 ft wide.
Who owns Del Valle RD over Lake Del Valle?
It is owned by the County Highway Agency.