Evening Closures on SR-54 and I-805 Highlight Midweek Commute

Midweek Traffic Overview

Commuters in San Diego are seeing a relatively standard morning commute this Wednesday, March 4, 2026. While the major arteries like the I-5 and I-15 are moving at expected speeds for the morning rush, local residents and long-distance commuters should prepare for significant evening disruptions and be aware of recent local incidents that may still impact side-street flow.

City Heights Incident Follow-up

Local traffic in the City Heights neighborhood continues to feel the ripple effects of a dramatic incident on Trojan Avenue near 52nd Street. A vehicle fire and subsequent collision involving a rolling Jeep caused the closure of the intersection for several hours. While the wreckage has been cleared, residents report that traffic investigators have been active in the area. Commuters using Trojan Avenue as a cut-through to avoid larger surface streets should exercise caution, as local residents have voiced concerns regarding ongoing safety and parking-related collisions in this specific corridor.

Scheduled Evening Freeway Closures

Caltrans District 11 has confirmed that several major infrastructure projects will trigger closures tonight, Wednesday, March 4. Drivers in the South Bay should plan for the following between 10:00 p.m. and 5:00 a.m. tomorrow:

• Westbound SR-54: The connector to Southbound I-805 will be fully closed for pavement rehabilitation.
• I-805 Mainline: Multiple lane reductions are expected on the Southbound I-805 between SR-54 and the Telegraph Canyon Road area.
• Telegraph Canyon Road: Selected ramps and lanes will be closed in the evening to facilitate the ongoing $235 million South Bay pavement project.

Motorists are advised to use I-5 as a primary north-south detour during these overnight hours. Caltrans is also moving forward with the I-805 South Asset Management Project, which includes adding new auxiliary lanes to improve the flow between Market Street and Home Avenue.

Public Transit and Weekend Outlook

San Diego Metropolitan Transit System (MTS) reports that bus and Trolley services are running on a regular weekday schedule today. However, commuters who rely on the Orange Line or the North County Transit District (NCTD) COASTER should begin making alternative plans for the upcoming weekend. Major maintenance and infrastructure work will result in the following:

• Orange Line Trolley: No service will be available between Courthouse and Massachusetts Avenue Station on Saturday, March 7, and Sunday, March 8. Shuttle buses will be provided.
• COASTER Rail: All coastal rail service between Oceanside and the Santa Fe Depot will be suspended this coming Saturday and Sunday. No replacement bus service is planned for the COASTER stations.

Local Events Impacting Traffic

Today also marks the 5th Annual DBE Summit, which may increase local traffic volume around major transit hubs and convention spaces during the mid-day hours. Drivers should stay alert for increased pedestrian activity in the downtown core and near business centers.