https://www.chicagotribune.com/news/local/breaking/ct-biz-cta-damen-green-line-station-20190503-story.html https://www.transitchicago.com/mayor-emanuel-joins-alderman-burnett-cdot-cta-and-dcase-at-groundbreaking-for-new-cta-green-line-station-at-damen--lake https://chicago.curbed.com/2018/7/9/17548886/construction-green-line-damen-stop-perkins-will It will fill the 1 miles distance between the California and Ashland stations on the Green line.