U.S. Highway 101 over Long Valley Creek
PoorMendocino County, California · 01-MEN-101-59.90 · Structure no. 10 0180
- Built
- 1957
- 68 years old
- Condition
- Poor
- inspected April 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 293 ft
- 4 main spans
- Daily traffic
- 6,700
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Long Valley Creek is a steel stringer/multi-beam or girder carrying U.S. Highway 101 over Long Valley Creek in Mendocino County, California. It was built in 1957, so it is 68 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 4 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.
It carries about 6,700 vehicles a day, roughly 20% of them trucks, projected to reach 9,590 by 2041. The structure is 293 ft (89.3 m) long and 63 ft wide. If it were closed, the detour would be 72.1 mi (116 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 101 over Long Valley Creek built?
It was built in 1957, making it 68 years old in 2025.
What condition is U.S. Highway 101 over Long Valley 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 April 2024.
How much traffic does U.S. Highway 101 over Long Valley Creek carry?
About 6,700 vehicles per day (2009 count), of which roughly 20% are trucks.
How long is U.S. Highway 101 over Long Valley Creek?
The structure is 293 ft (89.3 m) long with a longest span of 72 ft (21.9 m) and a deck 63 ft wide.
Who owns U.S. Highway 101 over Long Valley Creek?
It is owned by the State Highway Agency.