N880-HESPERIAN Bl over San Lorenzo Creek
FairAlameda County, California · 04-ALA-880-20.11 · Structure no. 33 0175S
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 82 ft
- 1 main span
- Daily traffic
- 1,100
- 2016 count
- Owner
- State
- State Highway Agency
About this bridge
N880-HESPERIAN Bl over San Lorenzo Creek is a steel stringer/multi-beam or girder carrying N880-HESPERIAN Bl over San Lorenzo Creek in Alameda County, California. It was built in 1992, so it is 33 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 1,100 vehicles a day, roughly 5% of them trucks, projected to reach 1,317 by 2046. The structure is 82 ft (25 m) long and 27 ft wide. If it were closed, the detour would be 11.2 mi (18 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 N880-HESPERIAN Bl over San Lorenzo Creek built?
It was built in 1992, making it 33 years old in 2025.
What condition is N880-HESPERIAN Bl over San Lorenzo Creek 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 May 2024.
How much traffic does N880-HESPERIAN Bl over San Lorenzo Creek carry?
About 1,100 vehicles per day (2016 count), of which roughly 5% are trucks.
How long is N880-HESPERIAN Bl over San Lorenzo Creek?
The structure is 82 ft (25 m) long with a longest span of 82 ft (25 m) and a deck 27 ft wide.
Who owns N880-HESPERIAN Bl over San Lorenzo Creek?
It is owned by the State Highway Agency.