Newsday reports Dina Lohan also pleaded guilty to speeding during her court appearance Tuesday on Long Island.
The Nassau County prosecutor says Lohan is expected to be sentenced June 3 to a conditional discharge and 100 hours of community service. She will also pay a fine.
Police said Lohan was driving 77 mph in a 55 mph zone when she was arrested on Sept. 12 in Oyster Bay. They said her blood alcohol level was more than double the legal limit.