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Hayne Palmour IV/North County Times
Traffic enters the United States at the San Ysidro border crossing earlier this month.
Cue the wrecking ball.
Construction has started to replace the nation's busiest crossing.
Authorities say it will sharply reduce waiting times for motorists crossing the border from Tijuana, Mexico. The 50,000 vehicles that enter San Diego daily clog Tijuana roads during delays often as long as two hours.
California-bound lanes will grow to 30 from 24, and each lane will have two inspection booths instead of one.
Construction of a new pedestrian bridge that crosses Interstate 5 begins this month and is expected to be finished by June 2011.