San Diego, CA, January 3, 2026
San Diego’s I-5 near the San Ysidro Land Port of Entry will undergo a $2.7 million construction project aimed at improving traffic flow, safety, and security. Scheduled to commence soon, the project will unfold in two phases, causing significant traffic delays. Local authorities recommend alternative routes to mitigate the expected congestion during this crucial infrastructure upgrade, which reflects ongoing investments in the region’s connectivity and community safety.
San Diego, CA – Motorists traveling south on Interstate 5 near the San Ysidro Land Port of Entry are advised to anticipate significant traffic delays due to a $2.7 million construction project aimed at enhancing safety, security, and traffic flow at this busy border crossing. The project is scheduled to commence on Tuesday, January 6, 2026, and will be executed in two phases over approximately three weeks.
Relieving Congestion and Enhancing Safety
The upcoming construction is a reflection of continual investments in San Diego’s infrastructure, demonstrating a commitment to bolstering both local business connectivity and community safety. With the San Ysidro Land Port of Entry being one of the busiest border crossings in the world, projects like this not only support the ever-growing trade between the United States and Mexico but also promote local entrepreneurial innovation in surrounding neighborhoods.
As the region grapples with challenges related to traffic congestion, these efforts to improve essential infrastructure can greatly aid in preserving an efficient flow of both commercial and personal vehicular traffic. It stands as a reminder of how even amidst regulatory frameworks, positive impacts can emerge through effective investment in public works.
Phase 1: January 6–9, 2026
The first phase of the construction will begin at 9 p.m. on January 6 and will continue through 5 a.m. on January 9. During this timeframe, crews will focus on removing speed humps near the southbound inspection booths and replacing temporary concrete barriers with permanent dividers. The specifics include:
- A continuous 56-hour closure of the Camino de la Plaza on-ramp.
- Closure of the six westernmost lanes of southbound I-5.
- Reduced lanes on southbound I-5 and I-805 as vehicles approach the border.
Despite these significant closures, access to Tijuana via the El Chaparral crossing will remain operational, and authorities advise motorists to plan accordingly to mitigate delays.
Phase 2: January 9–23, 2026
Phase two will commence at 5 a.m. on January 9 and conclude at 5 a.m. on January 23. This phase involves:
- A continuous closure of the easternmost inside lane on southbound I-5 within the center median at the San Ysidro Land Port of Entry.
Once again, access to Tijuana through the El Chaparral crossing and the Camino de la Plaza off-ramp will remain open throughout Phase 2. Ongoing delays are expected, so motorists are encouraged to remain vigilant in planning their travel.
Recommendations
Recognizing the potential for increased congestion during construction, local authorities recommend considering alternative routes such as the Otay Mesa Land Port of Entry. Public transit options may also provide effective alternatives for those looking to navigate around the border area during this period. In addition, increased traffic enforcement will be implemented throughout the construction timeframe. For real-time updates, motorists can visit the California Department of Transportation’s QuickMap website.
Background
The San Ysidro Land Port of Entry serves as a critical transportation gateway, accommodating daily crossings for thousands of vehicles and pedestrians. This construction project marks an important step in enhancing the efficiency and reliability of border operations, reflecting the ongoing commitment to improve San Diego’s infrastructure and promote economic activity within the region.
Weather Forecast
As of January 3, 2026, the weather in San Diego is cloudy with a temperature of 62°F (17°C). The forecast for the days leading up to the construction start date indicates cloudy conditions and possible rain, which may affect travel. Here’s what to expect:
- Friday, January 2: Cloudy with a brief shower or two. High: 67°F (19°C), Low: 57°F (14°C).
- Saturday, January 3: Mostly cloudy with a shower in places. High: 66°F (19°C), Low: 58°F (14°C).
- Sunday, January 4: Cloudy with a passing shower or two. High: 63°F (17°C), Low: 56°F (13°C).
- Monday, January 5: Thick cloud cover with a couple of showers. High: 64°F (18°C), Low: 51°F (11°C).
- Tuesday, January 6: Cloudy most of the time with a shower in places. High: 65°F (18°C), Low: 50°F (10°C).
- Wednesday, January 7: Times of clouds and sun. High: 64°F (18°C), Low: 54°F (12°C).
- Thursday, January 8: Times of clouds and sun. High: 63°F (17°C), Low: 48°F (9°C).
Motorists should monitor how weather conditions may influence traffic and plan their routes accordingly.
FAQ
What is the purpose of the construction project near the San Ysidro Land Port of Entry?
The project aims to improve safety, security, and traffic flow at the San Ysidro Land Port of Entry.
When does the construction project begin?
The construction project is scheduled to begin on Tuesday, January 6, 2026.
How long will the construction project last?
The project will be executed in two phases over approximately three weeks, concluding on January 23, 2026.
What are the main closures during the construction period?
Key closures include the Camino de la Plaza on-ramp, six westernmost lanes of southbound I-5, and the easternmost inside lane on southbound I-5 during different phases of the project.
Will access to Tijuana be affected?
Access to Tijuana through the El Chaparral crossing will remain open throughout the construction period.
What alternative routes are recommended?
Motorists are encouraged to consider using the Otay Mesa Land Port of Entry or public transit options to avoid delays.
Key Features of the Construction Project
| Feature | Details |
|---|---|
| Project Cost | $2.7 million |
| Project Duration | Approximately three weeks, from January 6 to January 23, 2026 |
| Phases | Two phases with specific closures and detours |
| Alternative Routes | Otay Mesa Land Port of Entry, public transit options |
| Access to Tijuana | El Chaparral crossing remains open |
| Traffic Enforcement | Increased during construction period |
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