Another big SoCal infrastructure project, workers are improving 27 miles worth of highway along San Diego’s northern coastal area. It’s a range that encompasses cities that include Oceanside, Carlsbad, Encinitas, and Del Mar, among others. As an essential throughway to Mexico and Canada, and an important part of the country’s highway transportation system – for tourists, commuters, and trucking alike — the I-5 project will include the addition of high occupancy vehicle lanes, interchange improvements, truck-specific lanes, pavement replacement, and more to help improve safety and reduce congestion. The project is expected to cost $1.3 billion.