Section 42. Removal of encroachments

The corporation is authorized to cause
  to  be  removed  from canal property any building, part of a building or
  structure erected, placed, maintained or otherwise occupying such  canal
  property,  if,  in  its  opinion,  the  removal  is  necessary  for  the
  improvement, use, maintenance, control, management, repair or  operation
  of  the  canal  system.  It  shall  be  the duty of any person owning or
  maintaining such a building, part of a building or structure  to  remove
  the  same  within  thirty  days from the service by the corporation upon
  said person of a notice ordering its removal. Upon the  failure  of  the
  person  so  ordered  to  remove  the  building,  part  of  a building or
  structure, the corporation may, without liability on  the  part  of  the
  state  or the corporation, take whatever action it may deem necessary to
  cause the removal. Service of the order of removal must be  personal  if
  the  person  to  be  served  can  be  found  within  the  state.  If the
  corporation shall not be able to serve such notice or cause the same  to
  be  served on the said person within the state after making a reasonable
  effort so to do, service may be made by attaching  such  notice  to  the
  said building, part of a building or structure.