Manatee Harbor DMMA Offloading 2020, Manatee County, Florida

DESCRIPTION OF WORK: The project consists of excavating material out of the Manatee Harbor Dredge Material Management Area (DMMA) located in Manatee County, Florida. The material shall be transported approximately 7.5 miles south to the Washington Park Placement Site. The excavated material will be used to construct a haul road in Washington Park with a finished crest elevation of 18.6 feet. Material from the DMMA shall then be placed in the fill template at the southern end of the haul road. The placed material shall be surrounded by a perimeter silt fence. Project work also includes clearing and grubbing, seeding, installation of drainage structures and slope protection features, and environmental monitoring. Location of Project The excavation site is located at the Manatee Harbor Dredge Material Management Area (DMMA). Washington Park placement site is located east of a railroad, south of 39th St. E., west of 8th Ave. E. and north of 30th St. E. situated in Palmetto, Florida. See the attached draft plans for location and vicinity maps. Specific Project Challenges The material in the DMMA varies greatly in terms of grain size and water content. The majority of the dry material exists in spur dikes inside the DMMA. Material at lower elevations and between spur dikes is more saturated which may not be as conducive to hauling as the spur dike material. The areas with saturated material are also not reliable surfaces to operate conventional equipment on. Environmental Conditions Contractor is required to remain within the construction limits in order to minimize wetland impacts outside the project area.

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Waterway and Marine Construction, Waterway and Marine Construction and Equipment, Dredging.