Interstate 805 California
Interstate 805, the Jacob Dekema Freeway, is a well-traveled route serving the inland communities within the cities of San Diego, National City, and Chula Vista in San Diego County. The commuter freeway connects the border zone with the homes of Eastlake and the light industry of Sorrento Valley.
Much of the Inland Freeway is eight lanes wide, and eight miles of new high occupancy vehicle (HOV) lanes opened to traffic in March 2014 between East Naples Street in Chula Vista and California 94 in San Diego. The I-805 South Express Lanes Project will convert the HOV lanes to tolled lanes, allowing single occupant vehicles to use the carpool lane for a variable toll rate. The Interstate 805 Corridor plan calls for extending the carpool lanes northward to I-5 and south to California 905.
- North End – San Diego, CA
South End – San Diego, CA
Mileage – 28.02
Cities – San Diego, National City, Chula Vista
- Junctions –
Source: December 31, 2018 Interstate Route Log and Finders List
I-805 Annual Average Daily Traffic (AADT)
|Location||Vehicles per day|
Source: Caltrans, Traffic Operations Program – Traffic and Vehicle Data Systems 
Much of Interstate 805 was constructed from the late 1960s to 1975 along what was a largely rural route at that time. There was no original U.S. or state route along its route. However, with the explosion of development in Chula Vista and San Diego, the freeway now provides access to thousands of homeowners. The only portion of Interstate 805 to pass through land that was already extensively developed at the time of construction was through Mission Valley and Mid-City. A towering bridge leads the freeway across Mission Valley, while it follows the historic boundary between San Diego and East San Diego, which today are both part of San Diego. Boundary Street, the former dividing line, now acts as a frontage road for portions of I-805 between California 94 and I-8.
Construction at the north end of I-805 improved the interchange where the Inland Freeway merges with Interstate 5. Underway from March 2002 through fall 2007, this $176 million project expanded the exchange to a dual freeway configuration with truck bypass lanes, high occupancy vehicle lanes, and connections to California 56.1 The northbound local bypass lanes were finished in early 2006, followed by opening of the southbound local bypass in spring 2007.