Prisms were created in the late 80's as a means to protect
shorelines from beach erosion. This new beach
erosion solution consists of precast concrete
prisms (creating a breakwater), measuring 3 to
4 feet in height and 10 feet in length. Its triangular
slotted design creates stability and durability, that
has been proven to withstand hurricanes (Hurricane Isabel
specifically). Beach Prisms is permitted by state and
federal agencies, including the Department of Natural
Resources and the Army Corps of Engineers. Beach Prisms
have been installed on over 20 sites around the Chesapeake
Bay and the Potomac River.
18 years of product testing and improvement of the design,
Beach Prisms were reintroduced to the market for sale
and installation. The improved product redesign functions
in the same manner as the original. In order to make
it more affordable for the customer, the product was
changed to be produced in one piece instead of multiple
pieces, which were then bolted together.
Prisms are a natural way of beach restoration.
The slotted design allows water to flow through, while
dissipating the energy of the waves, thus reducing the
impact they have on the shoreline.
Prisms have been proven in some cases to build back
lost shoreline, by accumulating sand in front
of and behind the Prisms, acting as a perfect beach
erosion solution. Results will vary based on many factors
unique to each site, including tides, prevailing winds
and availability of sand. Beach Prisms are recommended
for river and bay front properties only.
Beach Prisms (were) installed at five separate
sites ... ranging from 150 to 400 feet in length."
"... Beach Prisms helped to preserve as much as 20 to
40 feet of vital shoreline on our property."
Buggies and Beach Prisms