Interstate 880 NB over Hetch Hetchy Aqueduct
GoodSanta Clara County, California · 04-SCL-880-8.00-MPS · Structure no. 37 0669M
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected March 2021
- Type
- Slab
- Concrete Continuous
- Length
- 54 ft
- 3 main spans
- Daily traffic
- 11,500
- 2019 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 880 NB over Hetch Hetchy Aqueduct is a concrete continuous slab carrying Interstate 880 NB over Hetch Hetchy Aqueduct in Santa Clara County, California. It was built in 2003, so it is 22 years old, younger 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 11,500 vehicles a day, roughly 8% of them trucks, projected to reach 15,000 by 2042. The structure is 54 ft (16.6 m) long and 23 ft wide. If it were closed, the detour would be 0.6 mi (1 km).
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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Interstate 880 NB over Hetch Hetchy Aqueduct built?
It was built in 2003, making it 22 years old in 2025.
What condition is Interstate 880 NB 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 March 2021.
How much traffic does Interstate 880 NB over Hetch Hetchy Aqueduct carry?
About 11,500 vehicles per day (2019 count), of which roughly 8% are trucks.
How long is Interstate 880 NB over Hetch Hetchy Aqueduct?
The structure is 54 ft (16.6 m) long with a longest span of 19 ft (5.9 m) and a deck 23 ft wide.
Who owns Interstate 880 NB over Hetch Hetchy Aqueduct?
It is owned by the State Highway Agency.