During the month of May, Houston police arrested 31 drivers on felony alcohol charges.
Some were charged with driving while intoxicated with a child in the vehicle and many were charged with their third DWI.
Driving while intoxicated in Texas is typically a misdemeanor on the first two offenses.
Drivers charged with a third DWI offense can face up to $10,000 in fines, have their license suspended and can face between two to 10 years in prison.
While most of the felony cases in March were the result of a third DWI charge, seven people were arrested on a charge of DWI with a child passenger.