Police arrested 16 drivers for suspected drunken driving between June 11 and Sunday; four were involved in traffic accidents and one was younger than 21.
Police have made 646 suspected DUI arrests this year compared with 675 during the same period in 2011, according to the Hawaii Police Department.
Kona officers arrested eight motorists while South Hilo arrested seven and South Kohala officers arrested one motorist.
There have been 676 major accidents this year compared with 636 during the same period last year. So far this year, there were 14 traffic fatalities on the Big Island compared with 11 during 2011.