The group will take the high school stage for three shows this weekend before heading to the state festival in Brewer.
When the ratio falls below 100%, property owners qualifying for the state exemption programs will not receive their full exemption.
The work would shut down the bridge, a vital connection to the eastern side of Caribou and neighboring Fort Fairfield, for as long as five months.
If approved, grades 2-5 will move to Presque Isle Middle School and grades 7-8 to Presque Isle High School beginning next school year.