Snohomish County law enforcement arrested four drivers suspected of impaired driving during Super Bowl Sunday, signaling that strong “Don’t Drink and Drive” promotions had been successful.

Target Zero Teams in Snohomish, King and Pierce counties contributed to 47 arrests statewide on Super Bowl Sunday, one of the lowest in comparison to other, more recent emphasis patrols. About a dozen city officers, deputies and troopers worked Snohomish County roadways during the Target Zero emphasis patrol.

“Four arrests is still too many when considering that one of them could have killed an innocent victim” said Tracy McMillan, Snohomish County’s DUI & Target Zero Manager. “In 2010, there were 32 people killed on roadways in Snohomish County, with 19 of those deaths involving an impaired driver.

The most significant incident occurred at 1 a.m. Monday morning, when a Mill Creek police officer arrested an alleged impaired 29-year-old driver after he left the roadway and crashed into a Snohomish County Public Works trailer on Seattle Hill Road.

While the trailer was severely damaged, no one was injured.