U.S. Highway 101 over Rock Creek
FairMendocino County, California · 01-MEN-101-93.71 · Structure no. 10 0126
- Built
- 2000
- 25 years old
- Condition
- Fair
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 294 ft
- 3 main spans
- Daily traffic
- 6,100
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
U.S. Highway 101 over Rock Creek is a concrete continuous box beam or girders - multiple carrying U.S. Highway 101 over Rock Creek in Mendocino County, California. It was built in 2000, so it is 25 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 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 6,100 vehicles a day, roughly 15% of them trucks, projected to reach 7,549 by 2042. The structure is 294 ft (89.6 m) long and 44 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 | 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was U.S. Highway 101 over Rock Creek built?
It was built in 2000, making it 25 years old in 2025.
What condition is U.S. Highway 101 over Rock Creek 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 April 2024.
How much traffic does U.S. Highway 101 over Rock Creek carry?
About 6,100 vehicles per day (2009 count), of which roughly 15% are trucks.
How long is U.S. Highway 101 over Rock Creek?
The structure is 294 ft (89.6 m) long with a longest span of 114 ft (34.7 m) and a deck 44 ft wide.
Who owns U.S. Highway 101 over Rock Creek?
It is owned by the State Highway Agency.