LCR 41 Dismissal of Actions.

(b) Dismissal on Clerk's Motion.  In all civil cases where there
  has been no action of record due in the twelve months just past,
  the clerk shall mail notice to the parties or their attorneys of
  record that such case will be dismissed for want of prosecution
  unless within thirty days following said mailing, action of
  record is made or an application in writing is made to the court
  and good cause shown why it should be continued as a pending
  case.  If such application is not made or good cause is not
  shown, the court shall dismiss each such case without prejudice.
  The costs of filing such order of dismissal with the clerk shall
  not be assessed against either party.