US Army Corps of Engineers
Jacksonville District Website Website

Herbert Hoover Dike FL (C)

March 2019


Herbert Hoover Dike, FL (C)
Construction (C)
Congressional Districts: 17, 18, 20, 21, 22, 25


AUTHORIZATION:  The Herbert Hoover Dike (HHD) is a component of the Central and Southern Florida (C&SF) Project for Flood Control and other Purposes. The C&SF project was authorized in the Flood Control Act of 1948, 1954, 1960, 1965, and 1968; authorization in 1970 under Section 201 of the Flood Control Act of 1965; the Water Resources Development Acts (WRDA) of 1986, 1988, 1990, 1992, 1996 and 2007; and the Rivers and Harbors Act of 1930.

BACKGROUND:  The HHD system consists of approximately 143 miles of levee surrounding Lake Okeechobee, with 32 culverts, hurricane gates and other water control structures. The first embankments around Lake Okeechobee were constructed by local interests from sand and muck, circa 1915. Hurricane tides overtopped the original embankments in 1926 and 1928 causing over 3,000 deaths. The River and Harbor Act of 1930 authorized the construction of 67.8 miles of levee along the south shore of Lake Okeechobee and 15.7 miles of levee along the north shore. The U. S. Army Corps of Engineers (Corps) constructed the levees between 1932 and 1938 with crest heights ranging from +32 to +35 feet, National Geodetic Vertical Datum (NGVD).  A major hurricane in 1947 prompted the need for additional flood protection work. As a result, Congress passed the Flood Control Act of 1948 authorizing the first phase of the C&SF project, a comprehensive plan to provide flood protection and other water control benefits in central and south Florida. By the late 1960s, the new dike system was completed, raising the elevation of the levees to a maximum +41 feet, NGVD. This provides protection to the Standard Project Flood (SPF) level, approximately an event occurring once in 935 years. However, investigations conducted in the 1980s and early 1990s of the dike system's potential seepage and stability problems resulted in the identification of two major areas of concern: the seepage and embankment stability at the culvert locations, and the problematic foundation conditions of the dike.  During high water events, piping is experienced thru the levee. In 1999, the Corps developed a plan to rehabilitate the HHD. The plan was approved in 2000 and divided the 143 mile embankment into eight reaches with the initial focus on Reach 1. In August 2016, a Dam Safety Modification Report (DSMR) was completed and approved by the Corps Dam Safety Officer. The approved plan in the DSMR includes all remaining fixes to bring HHD within tolerable risk guidelines.


a. Regular Civil Works Funds:

Estimated Total Cost $1,801,400,000
Estimated Federal Cost $1,701,400,000
Allocation thru FY18 $1,072,902,000
State of Florida Contributed Funds $50,000,000
Federal Funds $1,022,902,000
Allocation for FY19 $212,405,000
State of Florida Contributed Funds $50,000,000
Federal (President's Budget + Wedge) $162,405,000
President's Budget FY20 $0

b. P.L. 115-123: Bi-Partisan Budget Act of 2018, Supplemental:

Current Working Estimate $515,100,000
Allocation thru FY18 $0
Allocation for FY19 $137,600,000


South Florida Water Management District
3301 Gun Club Road
West Palm Beach, Florida 33416-4680


FY2019 funds will be used to award one additional contract for the replacement of the last water control structure and three task orders under a Multiple Award Task Order Contract (MATOC) to begin the dam modifications cutoff wall between Lake Harbor and Moore Haven. FY2019 efforts include continued construction on 16 water control structures at various locations on Herbert Hoover Dike around Lake Okeechobee, the Reach 1 Cutoff Wall Gap Closures project, and the Reach 1 Cutoff Wall Extension project. Detailed design activities ongoing include design of features identified in the DSMR (including additional cutoff wall between the cities of Clewiston and Moore Haven, FL. FY2020 funds will be used to award additional cutoff wall contracts, and the remaining dam modifications identified in the DSMR (SR78 bridge armoring, S-71 and S-72 Embankment Raising); and continue construction on previously awarded water control structures, Reach 1 cutoff wall extension, and dam modifications cutoff wall construction contracts.

The Section 1024 Contributed Funds Memorandum of Agreement (MOA) was executed August 1, 2018 and the $50 million of state funding was received August 21, 2018 that will be applied to the MATOC Task Order #1 construction contract. This brings the total State Contributed Funds to $100 million.

The Long-term Disaster Recovery Investment Program (LDRIP) funds will provide a total of $514.2 million to fully fund the project.


Herbert Hoover Dike Rehabilitation project map