Crystal Springs RD over San Mateo Creek
FairSan Mateo County, California · Polhemus Road · Structure no. 35C0061
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected May 2021
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 1,637
- 2019 count
- Owner
- County
- County Highway Agency
About this bridge
Crystal Springs RD over San Mateo Creek is a concrete continuous culvert carrying Crystal Springs RD over San Mateo Creek in San Mateo County, California. It was built in 1974, so it is 51 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 1,637 vehicles a day, roughly 2% of them trucks, projected to reach 3,081 by 2039. The structure is 25 ft (7.6 m) long and 79 ft wide. If it were closed, the detour would be 5 mi (8 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Crystal Springs RD over San Mateo Creek built?
It was built in 1974, making it 51 years old in 2025.
What condition is Crystal Springs RD over San Mateo 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 2021.
How much traffic does Crystal Springs RD over San Mateo Creek carry?
About 1,637 vehicles per day (2019 count), of which roughly 2% are trucks.
How long is Crystal Springs RD over San Mateo Creek?
The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 79 ft wide.
Who owns Crystal Springs RD over San Mateo Creek?
It is owned by the County Highway Agency.