Supply chain issues have set the timeline for the Depot Street revitalization project behind by about 60 days.Representatives from Vaughn & Melton, the company leading the project, informed the Greeneville Board of Mayor and Aldermen of the delay at the board’s meeting recently.“Waterline, waterline fittings, storm drain materials, rebar have all had supply chain issues,” Tony Roe, construction engineering and inspection manager of the project, told the board.