State Route 121 over Tulucay Creek
GoodNapa County, California · 04-NAP-121-R5.71 · Structure no. 21 0077
- Built
- 1949
- 76 years old, rebuilt 1997
- Condition
- Good
- inspected April 2022
- Type
- Slab
- Concrete Continuous
- Length
- 62 ft
- 3 main spans
- Daily traffic
- 27,000
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 121 over Tulucay Creek is a concrete continuous slab carrying State Route 121 over Tulucay Creek in Napa County, California. It was built in 1949 and reconstructed in 1997, so it is 76 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 27,000 vehicles a day, roughly 2% of them trucks, projected to reach 32,664 by 2040. The structure is 62 ft (18.9 m) long and 93 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 121 over Tulucay Creek built?
It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1997.
What condition is State Route 121 over Tulucay 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 2022.
How much traffic does State Route 121 over Tulucay Creek carry?
About 27,000 vehicles per day (2009 count), of which roughly 2% are trucks.
How long is State Route 121 over Tulucay Creek?
The structure is 62 ft (18.9 m) long with a longest span of 24 ft (7.3 m) and a deck 93 ft wide.
Who owns State Route 121 over Tulucay Creek?
It is owned by the State Highway Agency.