Professional design, permitting, construction, testing, and commissioning of new utility pipelines, and the decommissioning and preparation for removal of the existing utility pipelines by others.
Replacement of the 20-inch water main under Fisherman’s Channel consisted of the following: Design/Build water main replacement based on a minimum eighty year life, installing two new water service pipes of 24-inch and 12-inch diameter, respectively, install new pipes in approximately 850 linear feet of new 60-inch minimum diameter micro-tunnel casing that shall commence at the Port of Miami on Port Island and terminate on the northern portion of Fisher Island, casing clearance at approximately EL (-) 90 feet to provide enough clearance for current and future dredging activities, installation of pipes within the micro-tunnel casing and fully encased in concrete grout, leaving no cavities for man access.
Pipe tapping connections at to location on the existing 20-inch water main and installation of new bi-directional flow meter at the Port of Miami. The 54-Inch Forcemain Replacement under Government Cut Channel consisted of a micro-tunnel of approximately 1,200 linear feet which included a new 54-inch pipe inside a 72-inch minimum diameter casing from the northern side of Fisher Island to a water location south of the City of Miami Beach via two deep shafts.
The casing clearance required approximately EL (-) 80 feet providing enough clearance for current and future dredging activities. The 54-inch carrier pipe was to be installed within the micro-tunnel casing, fully encase in concrete grout, leaving no cavities for man access.
A total of four taping connections with line stop schemes was required for the existing 54-inch sewerage force main. Two at the points of initiation and termination and two for a 36-inch temporary bypass to maintain uninterrupted service.
Developed complete bid estimate (AACE Class 1 Estimate) for general contractor.