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Florida Power & Light Channel Repair

Jensen Beach, Florida

Channel Lining


Florida Power & Light


Underwater Engineering Services Inc. (UESI)


Underwater Engineering Services Inc. (UESI)


November 2008

A channel restoration effort featuring more than one million square feet of ArmorFlex, an articulated concrete block revetment system, is currently underway at Florida Power & Light (FPL).

Hurricanes in the Jensen Beach area caused severe erosion to 85% of the canal embankment at FPL’s Saint Lucie Nuclear Power Plant. ArmorFlex was selected to repair the channel because it could provide a permanent, easy-to-install and cost-effective erosion system. The project marks the largest ArmorFlex project in Contech history.

ArmorFlex is a flexible, interlocking matrix of machine-compressed, cellular concrete blocks of uniform size, shape and weight. The matrix is connected by a series of cables, which pass longitudinally through performed ducts in each block. ArmorFlex revetment systems combine porosity, flexibility, vegetation encouragement and habitat enhancement with a rigid lining’s non-erodible self-weight and high-tractive force.

Elements of the repair include installation while the units are operating and restoration of embankments that are 2/3 underwater. After repairing the embankments and placing a drainage layer (57 stone), divers from UESI will place a filter fabric and the ArmorFlex articulated concrete block mats. The project began in January, and over 1.2 million SF of mats will be placed over the next two years.

Technical Description:

  • Product: ArmorFlex® 45ArmorFlex 75
  • Area: 1.2 Million sf

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