Thalle Awarded $24M Herbert Hoover Dike Rehab S-286 & S-287
December 23, 2014
The work includes construction of Herbert Hoover Dike Rehabilitation Structure Replacements, S-286 (HP-3) and S-287 (HP-2) Reconstruction, Glades County Florida. Work will consist of demolition and removal of the existing Herbert Hoover Dike Culverts HP-2 and HP-3 and the construction of new water control Structures S-287 and S-286 at the respective existing locations of Culverts HP-2 and HP-3. The demolition and reconstruction efforts will require the installation of steel sheet pile cofferdams at both the landside and lakeside of each culvert in order to dewater each construction site. These structures will include cast-in-place reinforced concrete foundations, headwalls, and box culverts. Combination flap/side gates will be installed at the lakeside headwall of each structure. S-287 and S-286 will each consist of one 7-foot by 7-foot culvert with an approximate barrel length of 96 feet. The embankments will be degraded from a crest elevation of 36 feet to a crest elevation of 32 feet. Riprap will be installed along the lakeside embankment faces, and control buildings will be installed on the lakeside work platform at each structure. Work also includes by-pass pumping, grassing, and turbidity monitoring.