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News
Pier 1, Staten Island – Substructure Rehabilitation
Trevcon commenced work on this project located in Staten Island, NY in October, 2008. This substructure rehabilitation and offshore extension project includes pile encasement, removal and replacement of missing braces, rehabilitation of pile caps and deck soffit patching. Wood platforms and other debris also had to be removed.
NY City Dept. of Environmental Protection – Bowery Bay Water Pollution Control Plant
Trevcon Construction and RMSK Contracting have formed a joint venture for this project located at the Bowery Bay Water Pollution Control Plant in the Borough of Queens, NY. This project includes replacement of eight sludge collectors in the gravity thickeners and installation of sixteen progressive cavity thickened sludge pumps and grinders. Piping associated with the thickened sludge pumps, gravity thickener feed, overflow and drains will require replacement, as well as the overflow weirs on the gravity thickeners. Support piling for a new single story building will also be constructed.
Brooklyn Army Terminal – Bulkhead Rehabilitation, Pier 1
Trevcon Construction Company began work at the Brooklyn Army Terminal, Brooklyn, NY in April, 2008. In preparation for the installation of an armor stone rip rap revetment slope, Trevcon began this project by clearing and excavating shoreline material which includes soil, submerged debris, and portions of Pier 1 remnants. Debris removal in and around the area of a partially submerged rail barge was also removed, as well as existing timber sheet pile bulkhead and remnants of the collapsed platform. The rip rap revetment slope will then be installed. The slope consists of 8,000 tons of armor stone and over 1,500 tons of bedding stone along 425 lineal feet of shoreline.
Chelsea Piers 60 and 61 – New York, NY
In October, 2008, Trevcon Construction began work at Chelsea Piers in Manhattan, NY at Piers 60 and 61. This project includes installation of new steel support beams and collars and jacking of Pier 60 to raise the pier level. Also involved is installation of new 180 foot long 13” diameter pipe bearing piles, and the installation of new 20” diameter steel pipe fender piles and pile posts down to the mud line, along with other timber repairs.
City of Hoboken, NJ – Sinatra Drive/Maxwell Place
The Maxwell Place North and West Piers and Waterfront Walkway Improvements Project for the City of Hoboken, NJ commenced construction in March, 2008. Trevcon is the marine and upland contractor working to rehabilitate the existing West Pier structures which involves encapsulating existing piles, driving sheet piles and structural deck work, value engineer/re-design and construct the new North Pier, and build the upland park on top of the West & North Piers. The project construction value is approximately $12 million and is scheduled for completion in March, 2009. Toll Brothers/PT Maxwell LLC are the construction managers and McLaren Engineering Group is the designer and engineer of record.
Sheepshead Bay Phase II Bulkhead Rehabilitation
The Sheepshead Bay project involves bulkhead restoration at both Shore Blvd. and Emmons Avenue locations in Brooklyn, NY. This project involves the demolition and removal of fender piles, installation of outfall extensions for pipe ranging from 3” to 60” in diameter, installation of soil anchors, sheetpiling, installation of permanent wale and electrical bonding. Additional work includes demolition and replacement of 80,000 square feet of the concrete sidewalk adjacent to the bulkhead. Removal and disposal of existing steel framework and grating surrounding outfalls and the construction of tie-in end conditions will also be done, in addition to installing precast pile cap and the rehabilitation wall of the large outfall.
Pier 25 and Platform Waterfront Structures
This project is located in the borough of Manhattan, NY on the Hudson River, north of Battery Park. The contract work area extends 400 feet along the Hudson River in a north-south direction and extends 1,000 feet into the Hudson River. The Pier 25 & Platform Waterfront Structures Contract consists of the sequenced removals and demolition of existing pier and bulkhead elements, and the construction of a new Pier 25, pile supported structure, of an area of approximately 3.5 acres. Bulkhead reconstruction will be done in several areas, along with the fabrication and installation of floating docks with gangways and ramps. Final completion is scheduled in October, 2008.
Verdant Power, LLC - East River Tidal Energy Project
Verdant Power, LLC called upon Trevcon Construction to install underwater turbines for the East River Tidal Energy Project. This innovative technology developed by Verdant Power uses tidal flow in a similar fashion as windmills utilize wind. The turbines, powered by the strong underwater currents of the East River, capture energy in the flow of water and convert it into electricity, forming a renewable, sustainable and economic source of power for many kinds of rivers, estuaries and other channels in the U.S. and around the world. This energy is presently being used as an emergency power backup to the Gristedes building located on Roosevelt Island. Trevcon’s work involves installing drilled-in monopiles and installation of six turbines which are mounted on the monopiles five feet above the riverbed in the East Channel of the East River. The total project may involve installation of up to 300 turbines. Construction management is provided by Oceaneering International, Inc. of Chesapeake, Virginia.
Governor’s Island – New York, NY
The Governor’s Island project is located in Manhattan, NY. The project involves both pier and dock work. Pier rehabilitation will be done to two existing piers. Yankee Pier work includes removal, repair and replacement of an existing fender system, spall repairs to the existing concrete deck and the restoration of electrical shore-tie power service and ship to shore sewer and water services at two berths. Pier 101 work includes sealing of concrete deck and installation of cathodic protection anodes on piles. Trevcon will also remove, repair and replace fender rack pile clusters and tighten and replace exiting bolts at Soisson’s Dock.
New York City Dept. of Environmental Protection— Tallman Island
This project is located at the sludge transfer pier at the Tallman Island Water Pollution Control Plant in Queens, NY. The work involves demolition and reconstruction of Piers 1 and 2. Pier 1 presents the challenge of having to demolish a pier located above two active plant outfalls without causing disturbance. The new replacement piers will be supported by steel pipes topped with precast pile caps, supporting precast soffit deck slabs and cast-in-place concrete deck toppings. Both piers will contain new 20” sludge transfer lines, electric service and new timber fencing systems.
Upcoming Projects
Click here for The ENR article for the West Midtown Ferry Terminal
Click here for The Beachcomber article for the Barnegat Light project
Click here for The NY Passenger Ship Government Engineering Article
Click here for The Spring Lake Pipeline Article
Click here for The World Dredging Magazine Cover Feature
Click here for The Wreck Pond Article
Click here for The Wreck Pond UTCA Article
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