Sweetwater Sprg RD over Branch Redwood Creek
FairSonoma County, California · 1.2 MI NE Armstrng Wood R · Structure no. 20C0365
- Built
- 1970
- 55 years old
- Condition
- Fair
- inspected July 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 38 ft
- 2 main spans
- Daily traffic
- 140
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Sweetwater Sprg RD over Branch Redwood Creek is a concrete continuous culvert carrying Sweetwater Sprg RD over Branch Redwood Creek in Sonoma County, California. It was built in 1970, so it is 55 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 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 140 vehicles a day, roughly 1% of them trucks, projected to reach 104 by 2040. The structure is 38 ft (11.6 m) long and 34 ft wide. If it were closed, the detour would be 9.9 mi (16 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 |
|---|---|---|
| Channel and channel protection | 7 Good | Some minor problems. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Sweetwater Sprg RD over Branch Redwood Creek built?
It was built in 1970, making it 55 years old in 2025.
What condition is Sweetwater Sprg RD over Branch Redwood 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 July 2023.
How much traffic does Sweetwater Sprg RD over Branch Redwood Creek carry?
About 140 vehicles per day (2015 count), of which roughly 1% are trucks.
How long is Sweetwater Sprg RD over Branch Redwood Creek?
The structure is 38 ft (11.6 m) long with a longest span of 18 ft (5.5 m) and a deck 34 ft wide.
Who owns Sweetwater Sprg RD over Branch Redwood Creek?
It is owned by the County Highway Agency.