Grange Road over Matanzas Creek
GoodSonoma County, California · .1MI S Bennett Valley RD · Structure no. 20C0533
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected April 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 149 ft
- 1 main span
- Daily traffic
- 3,250
- 2015 count
- Owner
- County
- County Highway Agency
About this bridge
Grange Road over Matanzas Creek is a prestressed concrete box beam or girders - multiple carrying Grange Road over Matanzas Creek in Sonoma County, California. It was built in 2005, so it is 20 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 3,250 vehicles a day, roughly 1% of them trucks, projected to reach 1,577 by 2046. The structure is 149 ft (45.5 m) long and 39 ft wide. If it were closed, the detour would be 18 mi (29 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 | 9 Excellent | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Grange Road over Matanzas Creek built?
It was built in 2005, making it 20 years old in 2025.
What condition is Grange Road over Matanzas 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 April 2024.
How much traffic does Grange Road over Matanzas Creek carry?
About 3,250 vehicles per day (2015 count), of which roughly 1% are trucks.
How long is Grange Road over Matanzas Creek?
The structure is 149 ft (45.5 m) long with a longest span of 147 ft (44.7 m) and a deck 39 ft wide.
Who owns Grange Road over Matanzas Creek?
It is owned by the County Highway Agency.