South Fork Road over Middle Fork Smith River
FairDel Norte County, California · 0.05 MI SE JCT SR199 · Structure no. 01C0006
- Built
- 1956
- 69 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 260 ft
- 4 main spans
- Daily traffic
- 350
- 2000 count
- Owner
- County
- County Highway Agency
About this bridge
South Fork Road over Middle Fork Smith River is a steel stringer/multi-beam or girder carrying South Fork Road over Middle Fork Smith River in Del Norte County, California. It was built in 1956, so it is 69 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.
It carries about 350 vehicles a day, roughly 3% of them trucks, projected to reach 764 by 2041. The structure is 260 ft (79.2 m) long and 25 ft wide. If it were closed, the detour would be 19.3 mi (31 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was South Fork Road over Middle Fork Smith River built?
It was built in 1956, making it 69 years old in 2025.
What condition is South Fork Road over Middle Fork Smith 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 June 2023.
How much traffic does South Fork Road over Middle Fork Smith River carry?
About 350 vehicles per day (2000 count), of which roughly 3% are trucks.
How long is South Fork Road over Middle Fork Smith River?
The structure is 260 ft (79.2 m) long with a longest span of 84 ft (25.6 m) and a deck 25 ft wide.
Who owns South Fork Road over Middle Fork Smith River?
It is owned by the County Highway Agency.