LEVITTOWN - A 16-year-old boy was hit and killed while crossing Hempstead Turnpike in Levittown last night. Police say Anthony D'Alessandro, of Levittown, was hit by a minivan just after 9 p.m. while trying to cross the turnpike near Division Avenue. Friends say they had gathered in a sump to have a few drinks and celebrate the first night of spring break when D'Alessandro left to go elsewhere. The 10th-grader was hit a few blocks from Division High School. The 61-year-old woman who was driving the van has not been charged. Devastated friends and family gathered near the site of the accident Thursday evening for a vigil to remember D'Alessandro.About two months ago, a Newsday investigation found Hempstead Turnpike to be Long Island's deadliest roadway for pedestrians.DOT: Safety improvements on the way for Hempstead TurnpikeNewsday report: Route 24 is LI's deadliest road