Sediments and Morphology
The patented PEM system consists of hollow permeable tubes installed in a grid vertically in the beach dewatering the beach without the use of pumps. PEM was installed for 3 years at the critically eroding part of Hillsboro Beach, Florida. At the end of the 3-year period the erosion in the 1-mile PEM project area had stopped and the beach had gained sand from R monument line to MHW, to -5ft, and to DOC. Shoreline in the project area that historically lost 25 ft. in 3 years gained 26 ft. The North and South control areas were not negatively affected.