Martinelli RD over Green Valley Creek
FairSonoma County, California · 0.35 MI N SH 116 · Structure no. 20C0374
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected February 2025
- Type
- Tee Beam
- Concrete Continuous
- Length
- 184 ft
- 4 main spans
- Daily traffic
- 250
- 2018 count
- Owner
- County
- County Highway Agency
About this bridge
Martinelli RD over Green Valley Creek is a concrete continuous tee beam carrying Martinelli RD over Green Valley Creek in Sonoma County, California. It was built in 1972, so it is 53 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 6 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 250 vehicles a day, roughly 8% of them trucks, projected to reach 312 by 2047. The structure is 184 ft (56 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Martinelli RD over Green Valley Creek built?
It was built in 1972, making it 53 years old in 2025.
What condition is Martinelli RD over Green Valley 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 February 2025.
How much traffic does Martinelli RD over Green Valley Creek carry?
About 250 vehicles per day (2018 count), of which roughly 8% are trucks.
How long is Martinelli RD over Green Valley Creek?
The structure is 184 ft (56 m) long with a longest span of 52 ft (15.7 m) and a deck 32 ft wide.
Who owns Martinelli RD over Green Valley Creek?
It is owned by the County Highway Agency.