Ralston Polhemus R over State Route 92
GoodSan Mateo County, California · 04-SM-092-R7.93 · Structure no. 35 0207
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected August 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 228 ft
- 2 main spans
- Daily traffic
- 36,300
- 2005 count
- Owner
- State
- State Highway Agency
About this bridge
Ralston Polhemus R over State Route 92 is a prestressed concrete continuous box beam or girders - multiple carrying Ralston Polhemus R over State Route 92 in San Mateo County, California. It was built in 1967, so it is 58 years old, older 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 36,300 vehicles a day, roughly 3% of them trucks, projected to reach 43,469 by 2045. The structure is 228 ft (69.5 m) long and 92 ft wide. If it were closed, the detour would be 1.9 mi (3 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ralston Polhemus R over State Route 92 built?
It was built in 1967, making it 58 years old in 2025.
What condition is Ralston Polhemus R over State Route 92 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 August 2024.
How much traffic does Ralston Polhemus R over State Route 92 carry?
About 36,300 vehicles per day (2005 count), of which roughly 3% are trucks.
How long is Ralston Polhemus R over State Route 92?
The structure is 228 ft (69.5 m) long with a longest span of 127 ft (38.7 m) and a deck 92 ft wide.
Who owns Ralston Polhemus R over State Route 92?
It is owned by the State Highway Agency.