UPDATE: due to the rain in the forecast, there will be no closures on November 20.
Caltrans has informed the City of Vista that they will be temporarily closing Highway 78 at Mar Vista Drive from 10 pm-5 am to allow for construction of the pedestrian walkway on the bridge.
Westbound Closure & Detour Information
- Westbound closure dates: November 18 & 19
Detour Information:
- Exit at Sycamore Avenue and turn left
- Turn right on South Melrose Drive
- Turn right on Hacienda Drive
- Turn left on Vista Village Drive
- Turn left onto the west SR-78 onramp
Eastbound Closure & Detour Information
- Eastbound closure dates: November 19-20 and November 23
Detour Information:
- Exit at Mar Vista Drive
- Proceed to east bound SR-78 onramp
The City has not yet been notified that there could be changes to the schedule due to inclement weather.
More Information
State Route 78 improvements are a Caltrans project and are not under the City of Vista’s jurisdiction. For details beyond what is posted on this page, please contact Caltrans directly at 619.688.6670.

