In case you are not aware of these restoration projects, the Palm Beach County link quoted below will give you a good overview of the efforts to restore wetlands lost to storms. Waterway navigation should not be affected and cruisers need only to be concerned about barge/work boat traffic in the area.

FLORIDA-LAKE WORTH-LAKE WORTH LAGOON: Restoration Mitigation
ATL Diversified Industries will commence mobilizing equipment for restoration mitigation of the Snook Islands and the Bryant Park wetlands during the week of August 13, 2012. Barges and work boats will operate Monday through Friday during daylight hours only, and will monitor VHF channel 9. The operation will consist of moving material (fill) from Bryant Park to areas that need filling. Snook Islands Phase II project is immediately north of the Lake Worth Bridge and the Bryant Park wetlands restorations project is immediately south of the Lake Worth Bridge. Barges will remain
onsite at the restoration sites overnight. The estimated completion date of the project is July 2013. Contact Mr. David Trindade for further details of the project or you may refer to the Palm Beach County website www.pbcgov.com/erm/lakes/estuarine. Chart 11472

Click Here To Open A Chart View Window, Zoomed To the Location of Lake Worth Bridge