https://youtu.be/QKMMcD28aPo
http://www.flymemphis.com/modernization
Timeline
Early 2017: Jet bridge construction to accommodate additional airlines on A and C
Mid 2017: Bidding on B construction
Late 2017: Delta Air Lines moves to A Concourse; Allegiant moves to C Concourse
Late 2017: Retail, food & beverage relocate to A and C
Late 2017: B Concourse closed
2018-2020: B Concourse construction
Mid 2020: Modernized B Concourse opens
Mid 2020: Airlines begin moving to B Concourse