Third Avenue over San Mateo Creek
GoodSan Mateo County, California · 0.3 MI N Norfolk ST · Structure no. 35C0159
- Built
- 1986
- 39 years old
- Condition
- Good
- inspected May 2023
- Type
- Slab
- Prestressed Concrete
- Length
- 75 ft
- 1 main span
- Daily traffic
- 12,040
- 2017 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Third Avenue over San Mateo Creek is a prestressed concrete slab carrying Third Avenue over San Mateo Creek in San Mateo County, California. It was built in 1986, so it is 39 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 12,040 vehicles a day, roughly 5% of them trucks, projected to reach 8,016 by 2041. The structure is 75 ft (22.9 m) long and 77 ft wide. If it were closed, the detour would be 5 mi (8 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. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Third Avenue over San Mateo Creek built?
It was built in 1986, making it 39 years old in 2025.
What condition is Third Avenue over San Mateo Creek 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 May 2023.
How much traffic does Third Avenue over San Mateo Creek carry?
About 12,040 vehicles per day (2017 count), of which roughly 5% are trucks.
How long is Third Avenue over San Mateo Creek?
The structure is 75 ft (22.9 m) long with a longest span of 73 ft (22.4 m) and a deck 77 ft wide.
Who owns Third Avenue over San Mateo Creek?
It is owned by the City or Municipal Highway Agency.