Forest Road 610 over South Fork Caspar Creek
PoorClosed to trafficMendocino County, California · N of Int of Forest RD 600 · Structure no. 10F0019
- Built
- 1965
- 60 years old, rebuilt 2009
- Condition
- Poor
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Wood or Timber
- Length
- 42 ft
- 3 main spans
- Daily traffic
- 2
- 2009 count
- Owner
- State
- State Park, Forest, or Reservation Agency
About this bridge
Forest Road 610 over South Fork Caspar Creek is a wood or timber stringer/multi-beam or girder carrying Forest Road 610 over South Fork Caspar Creek in Mendocino County, California. It was built in 1965 and reconstructed in 2009, so it is 60 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: closed to all traffic.
It carries about 2 vehicles a day, roughly 1% of them trucks, projected to reach 3 by 2041. The structure is 42 ft (12.9 m) long and 15 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Forest Road 610 over South Fork Caspar Creek built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 2009.
What condition is Forest Road 610 over South Fork Caspar Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.
How much traffic does Forest Road 610 over South Fork Caspar Creek carry?
About 2 vehicles per day (2009 count), of which roughly 1% are trucks.
How long is Forest Road 610 over South Fork Caspar Creek?
The structure is 42 ft (12.9 m) long with a longest span of 17 ft (5.2 m) and a deck 15 ft wide.
Who owns Forest Road 610 over South Fork Caspar Creek?
It is owned by the State Park, Forest, or Reservation Agency.