Lucas Valley RD over Miller Creek
GoodMarin County, California · 0.87 MI N of SR 101 · Structure no. 27C0013
- Built
- 1959
- 66 years old
- Condition
- Good
- inspected August 2023
- Type
- Tee Beam
- Concrete
- Length
- 67 ft
- 1 main span
- Daily traffic
- 6,500
- 1975 count
- Owner
- County
- County Highway Agency
About this bridge
Lucas Valley RD over Miller Creek is a concrete tee beam carrying Lucas Valley RD over Miller Creek in Marin County, California. It was built in 1959, so it is 66 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 6,500 vehicles a day, roughly 3% of them trucks, projected to reach 7,633 by 2041. The structure is 67 ft (20.4 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Lucas Valley RD over Miller Creek built?
It was built in 1959, making it 66 years old in 2025.
What condition is Lucas Valley RD over Miller 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 August 2023.
How much traffic does Lucas Valley RD over Miller Creek carry?
About 6,500 vehicles per day (1975 count), of which roughly 3% are trucks.
How long is Lucas Valley RD over Miller Creek?
The structure is 67 ft (20.4 m) long with a longest span of 62 ft (18.9 m) and a deck 41 ft wide.
Who owns Lucas Valley RD over Miller Creek?
It is owned by the County Highway Agency.