River/Waterway Diversion & Cofferdam Construction

  • The system can be used to divert a river or to form a cofferdam to allow both repair or new construction works to take place which would normally be submerged in water.
  • The Big Bag Defence System is the most cost effective cofferdam that is on the market today
  • Replacement of existing pipes or fittings are often necessary within treatment tanks or similar facilities and there is no other method out there that can form a cofferdam to allow this process to take place without infringing on existing services
  • As the systems have a bottom and lifting straps, they can be filled on dry land and craned into position below water with a lifting jig that can lift all five filled bags at the same time

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