ON THE “ROCK” WITH KLEEN BLAST Alcatraz Guard Tower Restoration Project 2013 [su_frame][/su_frame] The tower is one of the few first historic structures immediately seen  when  landing  at  the  dock  on  the  legendary  Alcatraz Island.  “It stands a centurion watch over the main road and tourists arriving Alcatraz Island,” describes Jasun Boles, Bara Infoware Site Superintendent and Quality Control Manager for the Alcatraz Dock Guard Tower preservation project. Kleen Blast supplied blasting media and equipment