Grand Avenue WB over Caltrain UPRR Industrial
FairSan Mateo County, California · 0.1 MI E of US 101 · Structure no. 35C0148L
- Built
- 1984
- 41 years old
- Condition
- Fair
- inspected April 2023
- Type
- Box Beam or Girders - Multiple
- Steel Continuous
- Length
- 588 ft
- 5 main spans
- Daily traffic
- 12,955
- 2010 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Grand Avenue WB over Caltrain UPRR Industrial is a steel continuous box beam or girders - multiple carrying Grand Avenue WB over Caltrain UPRR Industrial in San Mateo County, California. It was built in 1984, so it is 41 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 12,955 vehicles a day, roughly 10% of them trucks, projected to reach 10,688 by 2041. The structure is 588 ft (179.2 m) long and 54 ft wide. If it were closed, the detour would be 3.1 mi (5 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Grand Avenue WB over Caltrain UPRR Industrial built?
It was built in 1984, making it 41 years old in 2025.
What condition is Grand Avenue WB over Caltrain UPRR Industrial 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 April 2023.
How much traffic does Grand Avenue WB over Caltrain UPRR Industrial carry?
About 12,955 vehicles per day (2010 count), of which roughly 10% are trucks.
How long is Grand Avenue WB over Caltrain UPRR Industrial?
The structure is 588 ft (179.2 m) long with a longest span of 134 ft (40.8 m) and a deck 54 ft wide.
Who owns Grand Avenue WB over Caltrain UPRR Industrial?
It is owned by the City or Municipal Highway Agency.