Isherwood Way over Alameda Flood Cntrl Chnl
FairAlameda County, California · At Paseo Padre · Structure no. 33C0135
- Built
- 1980
- 45 years old
- Condition
- Fair
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 290 ft
- 4 main spans
- Daily traffic
- 7,200
- 2022 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Isherwood Way over Alameda Flood Cntrl Chnl is a prestressed concrete stringer/multi-beam or girder carrying Isherwood Way over Alameda Flood Cntrl Chnl in Alameda County, California. It was built in 1980, so it is 45 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 6 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 7,200 vehicles a day, roughly 1% of them trucks, projected to reach 13,221 by 2046. The structure is 290 ft (88.4 m) long and 38 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Isherwood Way over Alameda Flood Cntrl Chnl built?
It was built in 1980, making it 45 years old in 2025.
What condition is Isherwood Way over Alameda Flood Cntrl Chnl 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 September 2024.
How much traffic does Isherwood Way over Alameda Flood Cntrl Chnl carry?
About 7,200 vehicles per day (2022 count), of which roughly 1% are trucks.
How long is Isherwood Way over Alameda Flood Cntrl Chnl?
The structure is 290 ft (88.4 m) long with a longest span of 70 ft (21.3 m) and a deck 38 ft wide.
Who owns Isherwood Way over Alameda Flood Cntrl Chnl?
It is owned by the City or Municipal Highway Agency.