Replies(6) The site is located at 4647 Promenade Way, and opened on Wednesday at 1 p.m. (Cook County Commissioner Donna Miller) MATTESON, IL — The Cook County Department of Public Health opened another mass vaccination site in Matteson on Tuesday. The site is located at 4647 Promenade Way, and opened on Wednesday at 1 p.m. All Illinois residents age 16 and older are eligible for the vaccine at this location, after Illinois moved to Phase 2 on Monday. Cook County Commissioner Donna Miller (D-6th) joined County Board President Toni Preckwinkle, Cook County Health CEO Israel Rocha, Major David Sanford of the Illinois National Guard, Mayor Sheila Chalmers-Currin, and other elected officials to announce the Matteson community vaccination site opening on Tuesday.