Chula Vista police issued a traffic advisory beginning at 4 p.m. Saturday for the evening Tim McGraw concert at Sleep Train Amphitheatre. 

Heavy traffic is expected near the venue on southbound Interstate 805 and on  Main Street, not just due to the concert, but also nearby HOV lane construction. 

Officers are recommending alternate routes to access Main near the theater, including using the toll road, the South Bay Expressway, exiting Otay Mesa Road, or Interstate 5 south to state Route 905 east, to I-805 north, exiting Main Street.

The traffic advisory ends at about 1 a.m. 

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