Summer projects at Great Bend USD 428 include a new door intercom system at Riley Elementary School. Assistant Administrator Khris Thexton said Dayton Security in Hoisington recommended the $1,600 door buzzer system. Visitors will need to press an intercom button and be seen on camera before someone pushes a buzzer so they can enter the school.If the system works as well as anticipated, it may be added to all of the elementary schools in the next six to 12 months.