Boats that drew 70 tons were now 87 ½ feet long , 10 ½ feet wide and attracted 4 ½ feet water . Boats drawing 70 tons were now 87 ½ feet long , 10 ½ feet wide , and drew 4 ½ feet of water . Boats that drew 70 tons were now 87 ½ feet wide , 10 ½ feet long and attracted 4 ½ feet water .