The system is similar to the Geotubes installed on the north-end in 2011, according to the report.
The system is known as the Trapbag barrier system, and the city received them from Florida-based Sentinel Barriers last week, according to the report.
The Trapbag is a series of cells filled with sand, gravel or silt that are stitched together in 100-foot segments, according to the report. Each Trapbag is six feet tall.
Geotubes are one long sleeve that collects sand.
Like the Geotubes, they provide stability for dunes by providing a hard core, according to the report.
Trapbags are easier to repair than Geotubes, and are made of recycled plastic, according to the report.