San Marcos Blvd over N. Br. San Marcos Creek
GoodSan Diego County, California · 150 Ft E/O Twin Oaks Vly · Structure no. 57C0870
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected March 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 105 ft
- 5 main spans
- Daily traffic
- 12,000
- 2023 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
San Marcos Blvd over N. Br. San Marcos Creek is a concrete continuous culvert carrying San Marcos Blvd over N. Br. San Marcos Creek in San Diego County, California. It was built in 1999, so it is 26 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 12,000 vehicles a day, roughly 2% of them trucks, projected to reach 15,000 by 2045. The structure is 105 ft (32 m) long. If it were closed, the detour would be 0.6 mi (1 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was San Marcos Blvd over N. Br. San Marcos Creek built?
It was built in 1999, making it 26 years old in 2025.
What condition is San Marcos Blvd over N. Br. San Marcos 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 March 2023.
How much traffic does San Marcos Blvd over N. Br. San Marcos Creek carry?
About 12,000 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is San Marcos Blvd over N. Br. San Marcos Creek?
The structure is 105 ft (32 m) long with a longest span of 12 ft (3.6 m).
Who owns San Marcos Blvd over N. Br. San Marcos Creek?
It is owned by the City or Municipal Highway Agency.