State Route 128 over Robinson Creek
GoodMendocino County, California · 01-MEN-128-30.66 · Structure no. 10 0063
- Built
- 1939
- 86 years old, rebuilt 1991
- Condition
- Good
- inspected May 2023
- Type
- Slab
- Concrete
- Length
- 35 ft
- 1 main span
- Daily traffic
- 2,300
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 128 over Robinson Creek is a concrete slab carrying State Route 128 over Robinson Creek in Mendocino County, California. It was built in 1939 and reconstructed in 1991, so it is 86 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 2,300 vehicles a day, roughly 5% of them trucks, projected to reach 3,450 by 2043. The structure is 35 ft (10.7 m) long and 35 ft wide. If it were closed, the detour would be 60.3 mi (97 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 State Route 128 over Robinson Creek built?
It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1991.
What condition is State Route 128 over Robinson Creek in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.
How much traffic does State Route 128 over Robinson Creek carry?
About 2,300 vehicles per day (2009 count), of which roughly 5% are trucks.
How long is State Route 128 over Robinson Creek?
The structure is 35 ft (10.7 m) long with a longest span of 32 ft (9.8 m) and a deck 35 ft wide.
Who owns State Route 128 over Robinson Creek?
It is owned by the State Highway Agency.