No Build Alternative

The No Build Alternative proposes no action, where no construction or improvements would be made to the I-5/El Toro Road Interchange.

Build Alternative 1

Build Alternative 1 proposes an additional I-5 southbound off-ramp to serve El Toro Road East and El Toro Road West. This is accomplished with a 2-lane I-5 southbound off-ramp to El Toro Road that is split with one lane assigned to El Toro Road West, using the existing hook ramp, while one lane is assigned to El Toro Road East that is braided over the southbound hook on-ramp. This ramp then travels over El Toro Road on a new bridge and then ties into a realigned Avenida De La Carlota by the Laguna Hills Mall area. A new southbound hook on-ramp is provided along the realigned Avenida De La Carlota. The existing southbound direct on-ramp from El Toro Road is eliminated, while the existing access provided by the southbound ramps, opposite Paseo De La Valencia, are maintained. The northbound ramps would be in a similar configuration as today, with improvements made by I-5 Segment 3, which is currently under construction.

Build Alternative 2

Build Alternative 2 proposes an I-5 southbound flyover off-ramp to independently serve El Toro Road East, and a separate hook off-ramp for El Toro West. This is accomplished with a 2-lane I-5 southbound off-ramp to El Toro Road that is split with one lane assigned to El Toro Road West, using the existing hook ramp, while one lane is assigned to El Toro Road East that is a flyover connecting to both El Toro Road and Rockfield Boulevard. The flyover ramp connects into a roundabout that provides access to El Toro Road East, and provides access to Los Alisos Boulevard. Vehicles accessing El Toro Road East would have to make a right turn onto El Toro Road.

Build Alternative 3

OCTA and Caltrans is evaluating a standalone Transportation Systems Management (TSM)/Transportation Demand Management (TDM) Alternative. Build Alternative 3 would install intelligent transportation systems to improve traffic signal synchronization and incorporate other transportation system management elements. This technology element is included in Build Alternatives 1 and 2.