Project Management
Rehabilitation of Norristown Dam
Location: Norristown, Pennsylvania • Schuylkill River
The dam was built circa 1840 as a stone-filled timber crib structure, approximately 1,000 ft. long, across the Schuylkill River at Norristown. Originally, designed to provide a process water supply, it now functions to preserve recreational boating upstream.
The rehabilitation, designed by S. T. Hudson Engineers, included driving steel sheet piling to bedrock up and down stream of the timber cribbing, interconnected with tie-rods as shown above. The toes of the downriver sheet piles are secured by steel pins grouted into bedrock. The temporary timber spillways shown were subsequently replaced with reinforced concrete structures.
Hudson's role in this $4 million project began with diver/engineer surveys and design of repairs, and continued through construction management.
Repairs to Piers 5B, 5C, 6 and 7
Location: Bayonne, New Jersey • Kill Van Kull and Upper New York Bay
S. T. Hudson Engineers conducted above and underwater damage and condition surveys, and designed repairs and new/replacement structures for several of iMTT's pier facilities at their Bayonne, New Jersey terminal (in foreground and to the right end of the peninsula in the photo below).
Hudson's services for the $8.5 million in completed work included surveys, preparation of plans and specifications for temporary and permanent repairs, construction management, and consulting for insurance claims.
Fishing Pier, Marina with Boat Ramp, Promenade and Dockmaster Building
Location: Gloucester City, New Jersey • Delaware River
 S. T. Hudson Engineers designed a fishing pier, marina (featuring twenty-four boat slips) with a boat ramp, 1,120 L.F. pedestrian promenade, and the dockmaster building at Proprietor's Park. Hudson performed field investigations, including hydrographic, archeological and topographic surveys. Hudson's scope included: obtaining necessary state and federal permits, dredging consultation, design and construction management. Hudson was responsible for the adjacent site work, including: parking facilities, landscaping, stormwater management, utilities, the creation of an inter-tidal habitat (mitigation) and ornamental fixtures.
This project was very unique due to the presence of several historic timber crib structures and a sunken historic vessel, the frigate "Augusta." Hudson located these obstructions and worked in conjunction with local and state historic preservation officials to minimize impact during construction and designed signage as an educational tool for the public. This project shall be the cornerstone to Gloucester City's waterfront development plan and a catalyst in the growth of the local economy.
Design of a New Slag Unloading Pier
Location: Camden, New Jersey
 S. T. Hudson Engineers prepared the federal and state permit applications, developed the construction drawings and specifications, and construction management for the installation of a new slag unloading pier. The new pier is located at the SJPC Broadway Terminal. The pier supported a multi-purpose crane and conveyor system, which discharges the slag into the St. Lawrence Cement Facility. The project also included the removal of approximately 100,000 cubic yards of dredge material.
Rehabilitation of the South Brooklyn Marine Terminal (SBMT)
Location: Brooklyn, New York
S. T. Hudson Engineers performed engineers/divers surveys on various pier and bulkhead structures along the Brooklyn waterfront. A hydrographic survey was conducted at these waterfront structures using a differential global positioning system.
S. T. Hudson Engineers prepared detailed reports with recommendations and engineer's order of cost magnitude for our client's review. Based on these surveys, the 29th and 39th Street piers and the inshore bulkhead, between the 35th and 39th Street piers, were rehabilitated for future use. Our scope of work included: obtaining the necessary permits, designing repairs, and construction management. The 33rd and 35th Street piers were scheduled for demolition. S. T. Hudson Engineers obtained separate permits for the removal of portions of these waterfront structures, which included the removal of a large warehouse. We conducted a side scan sonar survey to determine if any debris from the demolition process was an obstruction in the navigational channel.
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.
City of Camden, Riverfront Promenade Extension
Location: Camden, New Jersey
 S. T. Hudson Engineers designed the extension of the riverfront promenade along the Camden waterfront. The new promenade is approximately 1,400 l.f. and extends from the North face of the former RCA pier (at the foot of Cooper Street), to the South side of the Benjamin Franklin Bridge. Hudson obtained all state and federal permits for the demolition of three (3) deteriorated structures, the rehabilitation of two existing piers and the installation of a new steel sheet pile bulkhead wall.
Our scope included the design of all new utilities, fire protection, landscaping, the creation of a major shallow water habitat for mitigation, and construction management.
The promenade has become one of the many popular tourist attractions along the waterfront.
Construction of a Trotter Racetrack over the Delaware River
Location: Chester, Pennsylvania
 Harrah's Chester Casino and Racetrack proposed to build a trotter racetrack on their Chester, PA facility. since the land was too small to fit the racetrack on the parcel of land, the track was proposed to go out over the Delaware River. S. T. Hudson Engineers' scope of services included a geotechnical investigation, federal and state permit applications, preparation of construction documents, construction inspection and "as-built" drawings. Hudson provided construction management for the demolition of existing structures, drilling of steel piles into the mica-schist, installation of the concrete deck, concrete retaining walls and steel sheet pile bulkhead.
The project required extensive pile-supported falsework since the project site had no soil
overburden about the rock.
Rock Removal from Berth 3C Area
Location: Marcus Hook, Pennsylvania
S. T. Hudson Engineers performed side scan and scanning sonar imagery of the Berth 3C area and found several rock pinnacles to be removed. Hudson provided positioning, monitoring of removal process and post removal clearance surveys. Commerce provided all of the floating equipment and personnel to drill, break, and remove the rock, then barge the material away for disposal.
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.
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 
