Updated  09/26/06

Intracoastal Waterway, Broward County – Phase I

Summary of Work Performed

January 2000

We have essentially completed Task I-A (Data Collection) and are nearing the completion of Task I-C (Establishment of Long-Term Requirements). Specifically, we have reviewed all available sediment data for the Broward County project area (Task I-C.1). However, we still await Jacksonville District COE core boring, grain-size distribution, and sediment chemistry data, presently being obtained and processed, before we determine the most appropriate channel locations in which to concentrate our planned sediment sampling, not yet scheduled. We have compiled and reviewed all available Jacksonville District, U.S. Army Corps of Engineers’ (COE) archival dredging records and channel surveys and have projected a preliminary estimate of future dredging and material storage requirements (Task I-C.2). Although sufficient to guide our initial identification and evaluation of candidate sites, this projection will be refined based on the results of the Jacksonville District’s three line survey of the entire ICWW, including the Broward County segment. Preliminary data from this survey is scheduled to be available in April 2000. We have inventoried all existing easements within the project area based on our review of relevant COE Real Estate maps and Control Data sheets for the Intracoastal Waterway, Jacksonville to Miami, and 1994 FIND blueline aerials. We are presently evaluating these easements with respect to their potential material storage capacity (Task I-C.3). When completed, this evaluation will allow the calculation of the project area’s existing material storage capacity deficit and the preliminary definition of operational channel reaches (Task I-C.4).

Although not yet final, the results of Task I have allowed the preliminary evaluation of likely material management concepts and the identification of 51 additional candidate sites based on an office review of NAPP color-IR aerial photography, USGS 7.5-minute topographic quadrangle maps, Comprehensive Plan Future Land Use maps and U.S. Department of the Interior wetland inventory maps. We are proceeding with the evaluation of these candidate sites. To this end, we are ordering current Broward County tax aerials in order to update each site’s land use, eliminate sites with obvious land use conflicts (i.e., recent development) not evident in the 1994 aerials, and thereby reduce the number of required candidate site inspections. All project base map templates and detailed supporting tables have been created and are being revised as each task’s results are finalized. In addition, all work to date is being prepared for MSPowerPoint® presentation to the project’s Technical and Citizens’ Advisory Committees.