State Route 128 over Maple Creek
FairMendocino County, California · 01-MEN-128-36.15 · Structure no. 10 0055
- Built
- 1939
- 86 years old, rebuilt 1991
- Condition
- Fair
- inspected May 2023
- Type
- Slab
- Concrete Continuous
- Length
- 61 ft
- 3 main spans
- Daily traffic
- 2,050
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 128 over Maple Creek is a concrete continuous slab carrying State Route 128 over Maple 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 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 2,050 vehicles a day, roughly 12% of them trucks, projected to reach 3,163 by 2043. The structure is 61 ft (18.7 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
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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 128 over Maple 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 Maple 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 May 2023.
How much traffic does State Route 128 over Maple Creek carry?
About 2,050 vehicles per day (2009 count), of which roughly 12% are trucks.
How long is State Route 128 over Maple Creek?
The structure is 61 ft (18.7 m) long with a longest span of 24 ft (7.3 m) and a deck 35 ft wide.
Who owns State Route 128 over Maple Creek?
It is owned by the State Highway Agency.