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Decomp Physical Model (DPM)

Picayune Strand Pump Station

The Decomp Physical Model (DPM) is a field-scale test that is being conducted along a 3,000-foot stretch of the L-67A and L-67C levees and canals in WCA- 3A and 3B to determine how best to design and formulate plans for future decompartmentalization of WCA-3, as visualized in the Comprehensive Everglades Restoration Plan (CERP). The DPM is designed to address scientific, hydrologic and water management uncertainties that require clarification prior to future planning and construction of Everglades restoration projects, authorized in the Water Resources Development Act of 2000.

Installation of the DPM was completed in October 2013. Four operational testing periods have been conducted within the October through January timeframe in 2013, 2014, 2015, and 2016. Additional testing is tentatively planned through 2021.

Access through the L-67A canal will remain open during and after installation. Access through the northern portion of L-67C will be blocked until the model is decommissioned.

Info & Meetings

DECOMP PHYSICAL MODEL (DPM)

The Supplemental Environmental Assessment (EA) and Finding of No Significant Impact (FONSI) for the Decomp Physical Model (DPM)** has now been signed. Public review of the document occurred from June 28, 2017 through August 27, 2017.
** Select Dade County to review document(s). Large files may take longer than normal to load.


PROJECT DELIVERY TEAM (PDT) MEETING FOR DECOMP PHYSICAL MODEL - August 2, 2017

Project Delivery Team meetings enable federal, state, and local agencies and tribal governments to provide their input into the Decomp Physical Model. Members of the public may attend the PDT meeting and provide public comment both during and at the end of the meeting.

AUGUST 2, 2017 - Project Delivery Team Meeting


SUPPLEMENTAL ENVIRONMENTAL ASSESSMENT & PROPOSED FINDING OF NO SIGNIFICANT IMPACT AVAILABLE FOR PUBLIC & AGENCY REVIEW- June 28, 2017

The Supplemental Environmental Assessment (EA) and Proposed Finding of No Significant Impact (FONSI) for the Decomp Physical Model (DPM) is now available for public and agency review. Comments will be accepted through August 27, 2017.

Installation of the DPM was completed in October 2013. Four operational testing periods have been conducted within the October through January timeframe in 2013, 2014, 2015, and 2016. The Corps is proposing operations in 2017 year-round, with the potential for additional years of testing through 2021 to gain information to further address scientific, hydrologic and water management uncertainties that require clarification prior to the design of decompartmentalization features within Water Conservation Area-3, included in the Comprehensive Everglades Restoration Plan (CERP). Water flow, stage, sediment movement, water quality, and ecological parameters will be measured during each operational test cycle.


SUPPLEMENTAL ENVIRONMENTAL ASSESSMENT & PROPOSED FINDING OF NO SIGNIFICANT IMPACT - May 20, 2015

Comments were accepted on the Supplemental Environmental Assessment and Proposed Finding of No Significant Impact (FONSI) through June 18, 2015.

The Draft Supplemental FONSI supplements the Installation, Testing and Monitoring of a Physical Model for the Water Conservation Area (WCA) 3 Decompartmentalization (Decomp) and Sheet Flow Enhancement Project Final Environmental Assessment (EA) and Design Test Documentation Report (DTDR) previously completed and signed April 13, 2010.