Comprehensive Everglades Restoration Plan, Biscayne Bay Coastal Wetlands, L-31E Flow-Way, Contract 5B (A Phase I Project): Pump Station S-703 and Recreational Sites; Miami-Dade County, Florida

Description of the Project The BBCW Contract 5B covers the design of Pump Station S-703, a spreader system, and two recreational sites. The S-703 pump station has a capacity of 50 cfs and is located at the intersection of the C-102 and L-31E Canal. S-703 will pump water from the L-31E Canal/C-102 into wetlands, east of the L-31E Levee and north of the C-102, via a dissipation/spreader basin and an earthen spreader channel (spreader system). The two recreational sites will be located east of the L-31E Levee and north of the C-102, near Biscayne Bay. Work will include construction of a shelter with information kiosk, and two tent sites/pads. The pump station will have manatee protective barriers, trash racks, and dewatering features, complete with stop logs. Controls will be located in a stand-alone, precast concrete building adjacent to the pump station structure. The pumps will have remote operation capability. Construction activities include installation of precast concrete, H-piles, king piles, sheet piles, concrete piles, precast concrete, cast-in-place concrete, tremie concrete, flowable fill, precast, concrete, control buildings, pumps, pump platform, pump station controls, electrical work, lighting, lightning protection, fencing, excavation, backfilling, stockpiling, clearing and grubbing, grading, placement of topsoil, sodding, limerock road topping, riprap and bedding stone, installation of stilling wells, stilling well platforms, staff gauges and floating barriers. Additional construction activities may include dewatering, and installation of cofferdams. In-water construction utilizing divers will be necessary, because of dewatering difficulty due to the local geology and high conductivity of the underlying limestone. Soil borings indicate the presence of hard limestone within the project area. Excavation of limestone may require large excavator with rock bucket. Materials for embankment and backfill construction can be obtained from offsite sources provided by the Contractor and approved by the Contracting Officer or the Contractor can process the excavated material to meet the classification of satisfactory material for embankment fill and or select fill at no additional cost to the Government. Contract does not allow blasting within the construction limits.

Division 02 -	Existing Conditions, Environmental Assessment, Natural Environment Assessment, Subsurface Investigation, Water Remediation.
Division 03 -	Concrete, Cast-in-Place Concrete.
Division 22 -	Plumbing, Plumbing Piping, Plumbing Equipment.
Division 26 -	Electrical, Instrumentation and Control for Electrical Systems.
Division 32 -	Exterior Improvements, Wetlands.
Division 33 -	Utilities, Water Utilities, Water Utility Distribution Piping, Water Utility Distribution Equipment, Water Utility Pumping Stations, Wells.
Division 44 -	Pollution and Waste Control Equipment, Water Pollution Control Equipment.