State Route 1 over Walker Creek
GoodMarin County, California · 04-MRN-001-44.45 · Structure no. 27 0026
- Built
- 1982
- 43 years old
- Condition
- Good
- inspected May 2024
- Type
- Slab
- Concrete Continuous
- Length
- 300 ft
- 10 main spans
- Daily traffic
- 1,400
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 1 over Walker Creek is a concrete continuous slab carrying State Route 1 over Walker Creek in Marin County, California. It was built in 1982, so it is 43 years old, younger 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 1,400 vehicles a day, roughly 3% of them trucks, projected to reach 2,100 by 2045. The structure is 300 ft (91.4 m) long and 35 ft wide. If it were closed, the detour would be 36 mi (58 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 1 over Walker Creek built?
It was built in 1982, making it 43 years old in 2025.
What condition is State Route 1 over Walker 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 2024.
How much traffic does State Route 1 over Walker Creek carry?
About 1,400 vehicles per day (2021 count), of which roughly 3% are trucks.
How long is State Route 1 over Walker Creek?
The structure is 300 ft (91.4 m) long with a longest span of 47 ft (14.2 m) and a deck 35 ft wide.
Who owns State Route 1 over Walker Creek?
It is owned by the State Highway Agency.