A 24-year-old Alpharetta man was critically injured Wednesday night after he crashed his car on Ga. 400 in south Forsyth while supposedly driving under the influence. Just before 9 p.m. on May 3, the man was driving south on Ga. 400 between Majors Road and McFarland Parkway/Exit 12 when his 1996 Toyota Camry veered to the left and went into a “broadside skid,” according to Deputy Doug Rainwater, a spokesman for the Forsyth County Sheriff’s Office. The incident occurred in the area where Ga. 400 is under construction to be widened, causing the Camry to travel into the gravel median and hit a dirt mound, Rainwater said, sending the car airborne.