The Morgan Hill Police Department will host a DUI checkpoint from 6pm Aug. 28 until 2am Aug. 29, at an undisclosed location within the city limits. MHPD said in a statement that the checkpoint location will be determined based on data showing incidents of impaired driving-related crashes. The purpose of the checkpoint is to promote public safety by taking suspected impaired drivers off the road, authorities said. “Impaired drivers put others o…