Seventh ST over US Highway 101
FairHumboldt County, California · 01-HUM-101-86.10-ARC · Structure no. 04 0054
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected September 2023
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 240 ft
- 2 main spans
- Daily traffic
- 3,435
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
Seventh ST over US Highway 101 is a concrete continuous box beam or girders - multiple carrying Seventh ST over US Highway 101 in Humboldt County, California. It was built in 1966, so it is 59 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 3,435 vehicles a day, roughly 5% of them trucks, projected to reach 2,180 by 2041. The structure is 240 ft (73.2 m) long and 54 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Seventh ST over US Highway 101 built?
It was built in 1966, making it 59 years old in 2025.
What condition is Seventh ST over US Highway 101 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 2023.
How much traffic does Seventh ST over US Highway 101 carry?
About 3,435 vehicles per day (2010 count), of which roughly 5% are trucks.
How long is Seventh ST over US Highway 101?
The structure is 240 ft (73.2 m) long with a longest span of 129 ft (39.3 m) and a deck 54 ft wide.
Who owns Seventh ST over US Highway 101?
It is owned by the State Highway Agency.