US Highway 199 NB over Hillside Above River
FairDel Norte County, California · 01-DN-199-R17.46 · Structure no. 01 0067
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected September 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 660 ft
- 9 main spans
- Daily traffic
- 3,100
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
US Highway 199 NB over Hillside Above River is a concrete continuous box beam or girders - multiple carrying US Highway 199 NB over Hillside Above River in Del Norte County, California. It was built in 1976, so it is 49 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 3,100 vehicles a day, roughly 14% of them trucks, projected to reach 3,826 by 2042. The structure is 660 ft (201.2 m) long and 32 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 US Highway 199 NB over Hillside Above River built?
It was built in 1976, making it 49 years old in 2025.
What condition is US Highway 199 NB over Hillside Above 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 September 2024.
How much traffic does US Highway 199 NB over Hillside Above River carry?
About 3,100 vehicles per day (2009 count), of which roughly 14% are trucks.
How long is US Highway 199 NB over Hillside Above River?
The structure is 660 ft (201.2 m) long with a longest span of 77 ft (23.5 m) and a deck 32 ft wide.
Who owns US Highway 199 NB over Hillside Above River?
It is owned by the State Highway Agency.