Fern DR over San Lorenzo River
FairPosted for loadSanta Cruz County, California · 0.05 MI W of SR 9 · Structure no. 36C0071
- Built
- 1950
- 75 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 73 ft
- 3 main spans
- Daily traffic
- 400
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Fern DR over San Lorenzo River is a steel continuous stringer/multi-beam or girder carrying Fern DR over San Lorenzo River in Santa Cruz County, California. It was built in 1950, so it is 75 years old, older 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. Its operating status is: posted for other load-capacity restriction.
It carries about 400 vehicles a day, roughly 5% of them trucks, projected to reach 510 by 2042. The structure is 73 ft (22.3 m) long and 12 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Fern DR over San Lorenzo River built?
It was built in 1950, making it 75 years old in 2025.
What condition is Fern DR over San Lorenzo River 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 November 2024.
How much traffic does Fern DR over San Lorenzo River carry?
About 400 vehicles per day (2015 count), of which roughly 5% are trucks.
How long is Fern DR over San Lorenzo River?
The structure is 73 ft (22.3 m) long with a longest span of 30 ft (9.1 m) and a deck 12 ft wide.
Who owns Fern DR over San Lorenzo River?
It is owned by the County Highway Agency.