CENTRAL AND SOUTHERN FLORIDA PROJECT
Canal 111 (South Dade)
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 1994) 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 2016) to supplement the C-111 GRR was completed in December 2016 and documents the design refinements over the life of the project.
The Water Resources and Development Act of 2020 (WRDA 2020) authorized the replacement of interim pump stations S-332B and S-332C. A General Reevaluation Report (GRR 2020) with environmental assessment for the replacement pump stations was completed in 2020. A work-in-kind memorandum of understanding (MOU) was executed with SFWMD for the development of preliminary designs for the pump stations. An amendment to the PCA is being prepared for the work authorized by WRDA 2020.
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.
The original recommended plan in the 1994 GRR included the following features: a bridge crossing the Taylor Slough flood plain; five pump stations (S-332A, S-332B, S-332C, S-3320, and S-332E); a levee 31W tieback, a S-332D tieback, a levee 31W borrow canal; discharge (Getaway) canals at S-332A, S-332B and S-332C; and S-332D; pump station S-332 connector canal; nine plugs constructed in C-109; and ten plugs in C-110. LRR 2016 removed the S-332E pump station, and actions associated with the C-109 and C-110 canals from the listing of project features. GRR 2020 provided for the planning, design, construction of hardened pump stations to replace interim pump stations C-332B and C-332C and specified ancillary features, and the demolition of those interim pump stations and specified ancillary features.
|Estimated Total Cost
|Estimated Federal Cost
|Allocation thru FY20
|Allocation for FY21
|President’s Budget FY21
South Florida Water Management District (SFWMD)
3301 Gun Club Road
West Palm Beach, Florida 33406
Construction efforts for work covered by the GRR 1994 was divided into 9 contracts. Those construction contracts are complete. Operation, Maintenance, Repair, Rehabilitation, and Replacement (OMRR&R) is being performed on those features by SFWMD.
In accordance with the Work in Kind MOU, SFWMD is moving forward with preliminary designs for the replacement pump stations authorized by WRDA 2020 and detailed in GRR 2020. Completion of preliminary designs are scheduled for June 2022. SFWMD is to prepare final designs and perform construction/demolition of the S-332B pump station and associated features. Jacksonville District is to prepare the final design and perform construction/demolition of the S-332C pump station and associated features.