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Last Updated | 12/15/2020 02:37 PM |
Project Title | Comprehensive Everglades Restoration Plan; Biscayne Bay Coastal Wetlands; L-31E Flow-Way; Contract 5A (A Phase I Project): Pump Stations S-703 And S-705; Recreational Sites; Miami-Dade County, Florida |
Physical Address | View project details and contacts |
City, State (County) | Miami, FL (Miami-Dade County) |
Category(s) | Government/Public, Heavy and Highway, Sewer and Water |
Sub-Category(s) | Lift and Pump Stations, Misc. Buildings, Park/Playground, Shoreline/Erosion/Drainage |
Contracting Method | Competitive Bids. |
Project Status | Results |
Bids Due | View project details and contacts |
Estimated Value | $5,000,000 to $10,000,000 |
Plans Available from | Federal Agency |
Owner | View project details and contacts |
Architect | View project details and contacts |
Description | Comprehensive Everglades Restoration Plan; Biscayne Bay Coastal Wetlands; L-31E Flow-Way; Contract 5A (A Phase I Project): Pump Stations S-703 And S-705; Recreational Sites; Miami-Dade County, Florida: Contract 5A covers the design of Pump Stations S-703, S-705, 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. The S-705 pump station has a capacity of 100 cfs and is located on the L-31E Canal at the intersection with the C-102. 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 canal. S-705 will pump water into an L-31E Canal segment, south of C-102 and north of Military Canal. The water in this segment will flow, through culverts, into wetlands east of the L-31E Levee. S-705 will also feature a 72-inch culvert with a slide gate to pass flows for internal drainage. 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 an information kiosk and two tent sites/pads. The pump stations will have manatee protective barriers, trash racks, and dewatering features, complete with stop logs. The slide gate at S-705 will be operated by an electric-motor actuator. Controls will be located in a stand-alone, precast concrete building adjacent to the pump station structure. The pumps and gate 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, an HDPE culvert, a slide gate, 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. |
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