Interstate 880 over Hetch Hetchy Aqueduct
GoodAlameda County, California · 04-ALA-880-7.32-FMT · Structure no. 33 0272
- Built
- 1958
- 67 years old, rebuilt 1993
- Condition
- Good
- inspected April 2023
- Type
- Slab
- Concrete Continuous
- Length
- 109 ft
- 5 main spans
- Daily traffic
- 187,000
- 2017 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 880 over Hetch Hetchy Aqueduct is a concrete continuous slab carrying Interstate 880 over Hetch Hetchy Aqueduct in Alameda County, California. It was built in 1958 and reconstructed in 1993, so it is 67 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 187,000 vehicles a day, roughly 7% of them trucks, projected to reach 257,286 by 2045. The structure is 109 ft (33.2 m) long and 141 ft wide.
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 Interstate 880 over Hetch Hetchy Aqueduct built?
It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1993.
What condition is Interstate 880 over Hetch Hetchy Aqueduct in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does Interstate 880 over Hetch Hetchy Aqueduct carry?
About 187,000 vehicles per day (2017 count), of which roughly 7% are trucks.
How long is Interstate 880 over Hetch Hetchy Aqueduct?
The structure is 109 ft (33.2 m) long with a longest span of 21 ft (6.4 m) and a deck 141 ft wide.
Who owns Interstate 880 over Hetch Hetchy Aqueduct?
It is owned by the State Highway Agency.