Major features of the project include construction of new roadways, bridges, interchanges, drainage facilities and environmental mitigation. The project is expected to reduce traffic on Mira Mesa Boulevard and Miramar Road. These six-lane streets are already operating at or near capacity.
Plans call for eventually adding another two lanes.
In each case a freeway corridor has been reserved by developers. Growth is occurring on both sides of this corridor. Environmental concerns include noise, cultural resources, floodplain and wetlands encroachment, revegetation of disturbed slopes, freeway planting and effects of growth. Highway right of way for the Penasquitos East area has been reserved by developers. A portion of highway right of way in the North City West segment has also been reserved by developers.