2017. Southeast Corridor Extension Regional Transportation District sent four teams a Request for Proposal for the Southeast Corridor extension, consisting of of new track south of Lincoln station that would serve three new stations: Sky Ridge Medical Center, , and the terminus at . On July 28, 2015, a design-build contract for the extension was awarded to Balfour Beatty Infrastructure Inc. Design on the extension began in fall 2015 and construction began in 2016. The extension opened on May 17, 2019. Route The R Line travels south from Peoria Station in northwest Aurora, predominantly following Interstate 225 through central Aurora to Belleview Station in southeast Denver. It then follows Interstate 25 to its terminus at RidgeGate Parkway station in southern Lone Tree. Due to low ridership, the R Line was cut back to Lincoln Station, no longer serving Sky Ridge, Lone Tree City Center, and RidgeGate Parkway Stations. Stations References External links RTD R Line Schedule RTD light rail Transportation in Aurora, Colorado Transportation in Arapahoe County, Colorado Transportation in Douglas County, Colorado Railway lines in highway medians Railway lines opened in 2017