The Kansas Department of Transportation (KDOT) has started a resurfacing project on K-7 in Linn County, from K-52 north to K-152.     Project activity includes a mill and overlay. Flaggers and a pilot car will guide one-lane traffic through the work zone; expect delays of 15 minutes or less on days when the project is active.   KDOT awarded the construction contract of $1.8 million to Shilling Construction, Manhattan. Weather permitting, the project should be finished by late August. Persons with questions may contact Public Affairs Manager Priscilla Petersen, (620) 902-6433.