Part 2 of the Water Conservation Area 3 Decompartmentalization and Sheetflow Enhancement Project includes the modification or removal of levees, canals, and water control structures in Water Conservation Area 3A located in western Broward County.

This project includes backfilling the southern 7.5 miles of L-67A Borrow Canal, removal of the L-68A, L-67C, the western portion of L-29 below Water Conservation Area 3A, L-28, and L-28 Tieback Levees and Borrow Canals, and elevating the western portion of Tamiami Trail below Water Conservation Area 3A.

Eight passive weir structures will be located along the entire length of L-67A to promote sheetflow from Water Conservation Area 3A to 3B during high flow conditions and additional water control structures will be added to the southern end of L-67A to allow for flow during extreme dry events. The purpose of these features is to re-establish the ecological and hydrological connection between Water Conservation Areas 3A and 3B, the Everglades National Park, and Big Cypress National Preserve.

The compartmentalization of the Water Conservation Areas has contributed to the loss of historic overland flows of the central Everglades slough system. This alteration of flows has resulted in temporal changes in hydropatterns and hydroperiods in the historic deepwater, central axis of the Shark River Slough system.

This component adds conveyance to Water Conservation Area 3B to help re-establish natural hydroperiods and hydropatterns in the Water Conservation Areas and Shark River Slough.