C&SF South Dade County (C-111) (C)

June 2021


Canal 111 (South Dade)

Construction (C)
Congressional Districts: 23, 24, 25, 26, 27


Congress authorized the Canal 111 (C-111) portion of the south (Miami-Dade) part of the Central and Southern Florida (C&SF) project in the Flood Control Acts of 1962 and 1968. The C-111 Project General Reevaluation Report (GRR) with integrated Environmental Impact Statement was approved in 1994, and the Project Cooperation Agreement (PCA) was executed in 1995. The C-111 GRR authorized modifications to the original project. The Water Resources Development Act (WRDA) of 1996 authorized 50/50 federal/sponsor cost sharing for the total project cost, which allows the sponsor to receive credit for lands needed for the project. The PCA Amendment was signed August 2014. A Post Authorization Change Report (PACR) /Limited Reevaluation Report (LRR) to supplement the C-111 GRR was completed in December 2016 and documents the design refinements over the life of the project.

The project is located at the downstream end of the C&SF project. The basin includes about 100 square miles of agriculture in the Homestead/Florida City area and the Taylor Slough Basin within Everglades National Park (ENP). C-111 normally discharges into Florida Bay via overland flow across the eastern panhandle of ENP and via discharges into Taylor Slough, which flows to Florida Bay. Flood protection discharges can also be made, when required, through S-197 to Barnes Sound in southern Biscayne Bay. The existing project causes harmful environmental impacts by over-draining the Taylor Slough area of ENP and by directing large freshwater flood protection discharges into the saltwater environment of Barnes Sound. Project modifications will maintain existing flood protection east of the L-31N and C-111 canals, minimize damaging freshwater discharges to Barnes Sound, restore more natural hydrologic conditions to the Taylor Slough Basin in ENP and contribute to the restoration of historic freshwater flows to Florida Bay. Project modifications will require adjustment of levees to keep project features outside the ENP and create a hydraulic ridge between ENP and eastern developed areas.


Estimated Total Cost $348,000,000
Estimated Federal Cost $165,294,000
Allocation thru FY20 $157,868,000
Allocation for FY21 $2,100,000
President’s Budget FY21 $500,000



South Florida Water Management District (SFWMD)
3301 Gun Club Road
West Palm Beach, Florida 33406


Construction efforts were divided into 9 contracts. All construction contracts are complete and under Operation, Maintenance, Repair, Rehabilitation, and Replacement (OMRR&R) by the SFWMD.

The Corps completed a PACR with the GRR for the replacement of Pump Stations S-332B and S-332C in September 2020. The GRR evaluated various alternatives to replace the pump stations and defined appropriate cost sharing for the OMRR&R of these project features. The PACR was authorized in the December 2020 WRDA.

The South Florida Water Management District is moving forward with the design of the replacement pump stations. Completion is scheduled in December 2023. Construction contracts will be awarded after the design is complete.

C-111 SD project area map