 It begins in the historic neighborhood of Point Richmond at the base of the Richmond-San Rafael Bridge and flows through the South Richmond forming the border with that neighborhood and Marina Bay as does the parallel Interstate 580.The road continues past 23rd street until reaching San Pablo Avenue (State Route 123) the major north-south artery for the West Contra Costa County area, adjacent to the regional transit hub of El Cerrito del Norte BART station, where buses from several counties converge to link with this metro system.This boulevard then thins out into a street as it climbs the hills of El Cerrito until reaching its end at Arlington Boulevard, a major north-south trunk road between the Richmond and Berkeley hills through El Cerrito.