Johnson City Schools plans to transition to two middle schools serving grades 6-8 on Aug. 3, 2022, a change that school officials expect will help alleviate overcrowding.The systems middle school supervisor says currently, students in the city system attend Indian Trail Intermediate School for grades 5 and 6 before moving to Liberty Bell Middle School for grades 7 and 8.Under the system’s new configuration, both facilities will transition to schools serving grades 6-8, and fifth grade will move back to the elementary school level.