Marine Structures
Rehabilitation of the Ship Dock
Location: Trainer, Pennsylvania
S. T. Hudson Engineers performed underwater inspection of the ship dock and found the ship dock required extensive repairs. A feasibility study was prepared to determine the most economical means of rehabilitating the dock while keeping the crude oil dock in service. The scope of service included federal and state permit applications, construction documents for a new approachway, mooring and breasting dolphins, walkways, loading platform and demolition of existing structures. Hudson is ensuring that the installation of temporary walkways and product piping supports, construction of a new steel pipe pile-supported concrete approachway, and partial demolition of the existing timber low deck structure was in accordance with specifications. Construction is ongoing—four (4) new steel pile-supported reinforced concrete mooring dolphins have been completed in August 2007. The complete rehabilitation of the ship dock is anticipated to be the end of 2008.
Design of Two Mooring/Breasting Dolphins
Location: Bayonne, New Jersey • Kill Van Kull and Upper New York Bay
 S. T. Hudson Engineers designed the above structures for mooring and breasting of
tankers of up to 35,000 DWT, replacing the outshore end of a deteriorating finger
pier. The design allowed for the onshore construction of dolphins out of pipe
members and the installation of structures by using the dolphin itself as a pile
driving frame, then connecting the dolphins to the piles. This onshore construction
approach resulted in minimal interruption to terminal operations; also the
openness of this design, with minimal piling, compared to a typical high deck, is
environmentally more desirable.
Mooring and Breasting Facilities for the Trump Yacht "Princess" & Repair of Bulkhead and Dredging at Senator Frank S. Farley State Marina
Location: Atlantic City, New Jersey • Clam Creek
S. T. Hudson Engineers designed the facilities for berthing this 1,800 DWT vessel in the Frank S. Farley State Marina, adjacent to the Trump Marina Hotel and Casino in Atlantic City. Construction was scheduled on a fast-track basis. The work included permitting for dredging a deeper channel for the 282 ft. LOA, 15.4 ft. draft luxury yacht, and project construction management.
Additionally, Hudson conducted a diver/engineer survey of 1,700 L.F. of deteriorated timber bulkhead, identifying areas of material degradation, marine borer activity and structural failure. We performed stability analyses, then developed both a design for short-term repair of 400 linear feet of bulkhead for immediate implementation, and a design for long-term rehabilitation.
Hudson's scope included pre- and post-dredge soundings, volume calculations, sediment sampling and analysis, permitting for both, bulkhead repairs and maintenance dredging, and construction management.
Upgrading of Cape May, New Jersey and Lewes, Delaware Ferry Terminals
Location: Cape May, NJ and Lewes, DE
 S. T. Hudson Engineers is working with the DRBA in developing Master Plans for upgrading both terminals, and is designing elements of those plans, on an ongoing basis.
Work has included boardwalks and pre-stressed concrete bulkheads, upgrading entire dock facilities - including a state-of-the-art composite fendering system, ferry cradles, composite monopile-supported fender clusters, energy-absorbing pier end dolphin structures, and utility improvements. Hudson also performs numerous engineers'/divers' surveys, hydrographic surveys and dredging consultation.
Design of the USS New Jersey Memorial Pier
Location: Camden, New Jersey
S. T. Hudson Engineers prepared preliminary designs and permit applications for permanent berthing of the eight-hundred and eighty-eight foot (888’) long USS New Jersey as a museum ship on the Camden waterfront. Hudson also prepared berthing and mooring designs to the U.S. Navy standards for the USS New Jersey at two Camden port facilities, for use during rehabilitation of the historic vessel.
Hudson was selected by the home port alliance to design the permanent memorial pier and vessel moorings for the battleship museum. Our scope of work included: permitting, design of waterfront structures and utilities, pre- and post-dredge hydrographic surveying, dredging consultation with the United States Army Corps of Engineers and technical assistance during construction.
Rehabilitation of the Delaware Station Pier
Location: Philadelphia, Pennsylvania
 The rehabilitation of the Delaware Station consisted of the installation of steel auxilary piles to replace the deficient front row piles and reinforced concrete encasements of the interior steel piles. The scope of services included underwater inspection of the pier, report with findings, recommendations, and cost estimates, federal and state permit applications, preparation of construction drawings and specifications, installation of steel auxilary piles, concrete pile encasements, and a new fender system; construction management and preparation of "as built" drawings.
Repair of the Unit No. 1 Intake Well
Location: Eddystone, Pennsylvania
The Unit #1 intake well sustained damage during January 2004. S. T. Hudson Engineers' divers/engineers assessed the damaged steel sheet piling and underwater steel structural members. Hudson designed repairs using new steel sheet piling and steel structural supports, specified the removal and cleaning of the wedge wire screens, and designed repairs to the associated mechanical piping. S. T. Hudson Engineers performed construction management until completion of the project.
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840 Cooper St., Suite 400 
