Why does the 15 freeway become a state route and not remain as an interstate south of Interstate 8 in San Diego?

As spring approaches, the City of San Diego is offering residents an opportunity to enhance their gardens with nutrient-rich compost — completely free of charge.

They are said to be part of a group of 1,500 active-duty personnel from the U.S. Army and the U.S. Marine Corps deployed to the southern border to augment the approximately 2,500 service members ...