The West Allis Police Department says a 4-year-old child was hit and injured by a vehicle driven by a 25-year-old woman while crossing the street at a crosswalk with his mother on Friday night.According to WAPD, around 6:50 p.m. on May 15 a vehicle driving westbound on National Avenue passed other vehicles on the right who were stopped for pedestrians in a crosswalk.The passing vehicle then hit a 4-year-old child who was crossing in the crosswal…