Beach Renourishment Projects
Click here for photos of the Town's severely hit beaches
(Click here for the photo report by CSI (11-07))
Project 1: P.E.M. Technology (Pressure Equalizing Modules):.jpg)
The project is a test designed to evaluate a system that alters water pressures within the sediments in an effort to increase sediment deposition on the beach. Each module is a 2.5-inch diameter, 6-foot-long tube with drainage slots. The modules (tubes) will be placed vertically in the sand with the distances between the existing grade to the tops of the buried tubes ranging from 12 to 24 inches, depending on the tube’s location along the beach face. PEMs will be installed in 33 rows perpendicular to the shoreline and spaced ca. 50 meters apart along one mile of beach. The PEMs will be installed ca. 10 meters apart within each row beginning from the mean low water line (MLWL) and extending to the toe of the dune or to structures that armor the shore. In plan view, the cumulative amount of space occupied by the PEMs is expected to be approximately 4 square feet over 13 acres, but the Town expects the PEMs to affect the entire 13 acres. The modules would be installed by a small earth drill mounted on tracks or by a backhoe with a drill mount. An optional installation method includes hydraulic jetting.
►Ecoshore P.E.M. Technology Information (click here)
►Ecoshore P.E.M. and the Enviornment Information (click here)
►Town of Hillsboro Beach P.E.M. Proposed Site Plan (click here)
►Town of Hillsboro Beach P.E.M. Description of Proposed Action
(click here)
The proposed Hillsboro Beach Truck Haul Beach Renourishment Project is generally a beach renourishment project for a small portion of critically eroded shoreline extending from the southern Deerfield Beach groin structure (just north of DNR Monument 7) south for approximately 430 feet, Broward County, Florida. This portion of shoreline was previously renourished in 1998, as part of a larger project, under Florida Department of Environmental Protection (DEP) Permit 0128853-001-JC and U.S. Army Corps of Engineers (Corps) Permit 199702355 (IP-KE). Erosion has continued over the past 8 years, in part due to recent hurricane and Tropical Storm activity, requiring an immediate truck haul project to address the hot spot immediately south of the Deerfield Beach groin field. In addition, a periodic renourishment was anticipated every 8 to 10 years according to the 1997 Long Range Beach Management Plan for Hillsboro Beach, prepared by Coastal Systems International, Inc. A full renourishment project application is being submitted separately to address approximately 7,000 feet of shoreline.
The project proposes to place 13,000 cubic yards of fill by truck haul to the site, using access to
the north, in the vicinity of DNR Monument 7. The existing berm height will be raised to +9.0
feet NAVD with a design profile consisting of a 1:10 foreshore slope transitioning to a 1:30
nearshore slope consistent with the U.S. Army Corps of Engineers’ recommendations and past
nourishment events in this location. The proposed Project area is residential with a mix of multi-family co-ops and condominiums.
The purpose of the proposed beach renourishment is to bring a small
further damaged by the recent
active hurricane seasons and Tropical Storm Andrea in 2007, to a design profile that will maintain the beach in a nourished state until the full renourishment project can be completed. The proposed
The proposed Project is located along a DEP designated critically eroded shoreline. In addition,
the active hurricane seasons of 2004 and 2005 and Tropical Storm Andrea have affected the
existing beach profile and accelerated erosion of the previously nourished area. The current high
beach has a very low profile, estimated to be no more than +3 feet NAVD and is very narrow
approximately 50 feet wide. A renourishment of the Project area would restore the highly valuable beach and dune system to this portion of Broward County. The beach is valuable as it provides essential storm protection to the multi-family structures that directly front the beach in Hillsboro Beach.
(Coastal Systems International) (click here)
►Hillsboro Beach Truck Haul Renourishment Project DEP JCP Application
Coastal Systems International, Inc. PROJECT DESCRIPTION, PURPOSE, AND NEED
(click here)