PITTSBURGH — Pittsburgh’s Three Rivers Regatta returns to the city today through Sunday after river debris caused by heavy rains prompted it to be canceled in July 2015.

That’s one reason the event was moved back to the first week of August, when the weather tends to be drier in Western Pennsylvania.

Hundreds of thousands of people are expected downtown for the event, which includes Formula 1 boat races on the rivers on Saturday.

Various bands and musicians will performing all three days on the main stage at Point State Park.

There also will be shows by BMX bicyclists and Pogo Xtreme performers. The whole thing wraps up with fireworks on Sunday at 9:30.

The show by Pyrotechnico includes a Prince musical tribute.