Culvert 10A

S-273 (Culvert 10) (Section 23, 26, Township 42 South, Range 36 East, Palm Beach County): Remove the existing two-barrel, 10-foot diameter, 111-foot long corrugated metal pipe structure and replace it with two 10-foot diameter reinforced concrete culverts equipped with slide/flap combination gates on the lakeside which open automatically based on landside stage levels. An earthen cofferdam will be installed in Lake Okeechobee and a steel sheetpile cofferdam will be installed on the landside of the culvert for dewatering. A cutoff wall will be installed in the centerline of the embankment at the structure that will tie into the existing cutoff walls on either side, and the embankment reconstructed to match the existing crest elevation of the dike.