Central Rail Line Extension is the L Line

The 5.3-mile Central Rail Line opened in 1994, and is Denver's first rail line between I-25 and Broadway and the 30th and Downing Station. The Central Rail Extension will connect the downtown rail loop to the University of Colorado A Line at 38th and Blake and provide the path for the proposed new line of service – the L Line.


New Rail in New Neighborhoods

The Central Rail Extension will connect existing downtown rail service with the planned 38th and Blake Station on the University of Colorado A Line. The L Line service would be provided by rail trains between downtown Denver and the 38th and Blake Station. It is proposed that the L Line would act as a “loop” around downtown.


  • 38th and Blake rendering

    38th & Blake

    • (built with the University of Colorado A Line)
  • Proposed future 35th and Downing location

    35th & Downing

  • Proposed future 33rd and Downing location

    33rd & Downing

  • 30th and Downing Station

    30th & Downing



RTD Board of Directors adopted the EE for the Central Rail Extension
The Central Rail Extension underwent further analysis, including a study to identify the most feasible transit route and operating plan to provide a direct connection between 38th · Blake and downtown Denver.
The Central Rail Extension mobility study is complete and provided several options for considerations. Once final funding is identified, final design and construction will begin. In the meantime, basic engineering design started is expected to be 30% complete in 2015.