From the Deschutes County Website.

Cascade Lakes Highway is closed from Dutchman Flat around the back side of Mt. Bachelor and Elk Lake.  The gate at Deschutes Bridge is now open.  Access is now possible from the Crescent Cutoff in Klamath County, North to the Lava Lake entrance.  We are targeting a Memorial Day opening for the remainder of the Cascade Lakes Highway.  Return to this page for updates.  (Status Date: 4/27/16)

Access to Lava is open!