(St. Paul, MN)  —  Driving-while-impaired arrests are up by nearly ten-percent in Minnesota this summer compared to last summer.  The Minnesota Department of Public Safety says more than 12-hundred impaired drivers were arrested from August 19th to September 5th this year.  Last year, that number was one-thousand-145.  This comes as state troopers are ramping up patrols throughout the state, particularly in the Twin Cities.