The 1997 shooting killed three girls: 14-year-old Nicole Hadley, 17-year-old Jessica James and 15-year-old Kayce Steger. Five others were injured.
The memorial is behind a fence at Heath Middle School, and those who wish to visit it must get permission.
Christina Ellegood, Hadley's sister, is head of the relocation project. She says people like to visit the memorial on the anniversary of the shooting, but get frustrated that it's difficult to access.
Ellegood says the new memorial will be designed by the victims' families, will have 24/7 access and will have lighting at night.
The move should cost less than $20,000. The decision was made at the School Board meeting Thursday evening.