Seventh ST over Santa Maria Creek
GoodSan Diego County, California · 0.2 MI N/O Route 78 · Structure no. 57C0145
- Built
- 1955
- 70 years old
- Condition
- Good
- inspected August 2023
- Type
- Slab
- Concrete Continuous
- Length
- 133 ft
- 5 main spans
- Daily traffic
- 5,600
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Seventh ST over Santa Maria Creek is a concrete continuous slab carrying Seventh ST over Santa Maria Creek in San Diego County, California. It was built in 1955, so it is 70 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 5,600 vehicles a day, roughly 1% of them trucks, projected to reach 6,000 by 2045. The structure is 133 ft (40.5 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 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 Seventh ST over Santa Maria Creek built?
It was built in 1955, making it 70 years old in 2025.
What condition is Seventh ST over Santa Maria 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 Seventh ST over Santa Maria Creek carry?
About 5,600 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is Seventh ST over Santa Maria Creek?
The structure is 133 ft (40.5 m) long with a longest span of 29 ft (8.8 m) and a deck 29 ft wide.
Who owns Seventh ST over Santa Maria Creek?
It is owned by the County Highway Agency.