The Bethany First Responders Tri, Dua and Aquabike takes place this morning. Drivers should expect lane closures on Route 1 between Dewey Beach and South Bethany as the bikers will be riding to the north – over the Indian River Inlet Bridge and the runners will head to the south. The Triathlon and Aquabike are expected to begin at 7:30 – the Duathlon at 7:45. Most participants should be finished by noon. Proceeds from the event benefit Bethany Beach Fire and First Responders.