41. One of our cofferdams has collapsed, " spokeswoman Cathy Jones told Australian Broadcasting Corp . radio. 42. Cofferdams were used generally in shallow waters where it was not necessary to deeply penetrate the natural bottom.43. Three days later, the interior of the cofferdam was full and " Maine " floated. 44. Afloat again on 29 June, she promptly went down for a third time when the cofferdam failed. 45. Each pier rests upon concrete foundations cast on the excavated bed of the sea, inside a cofferdam . 46. The " Gazelle "-class cruisers were also equipped with cork cofferdams to increase buoyancy. 47. By May 31, water within the cofferdam was down by, revealing most of the starboard quarterdeck. 48. Cofferdam and tremie seal construction have been used to construct the six-metre deep foundation in the dry.49. Empty tanks and cofferdams imploded as it descended, tearing open the structure and ripping off the poop deck. 50. While maintaining a list of 14 degrees, carpenters built a wooden cofferdam using whatever wood they could find.
