JJB Silverhawk LP has purchased two Southern California quarries from McGrath Jamacha Road LLC and McGrath Willow LLC for undisclosed amounts. The quarries, located northeast of San Diego in the cities of El Cajon and Lakeside, had been family-owned since the 1940s.
The El Cajon quarry is a 65-acre granite pit that will continue to be mined for crushed rock, rip rap, aggregate base and manufactured sand. Operating equipment, including rolling stock and processing plants, were included in the sale.
The Lakeside quarry spans nearly 22 acres and will be mined for sand products.
JJB Silverhawk is closely related to Superior Ready Mix LP, an Escondido, Calif.-based company.