DiGeronimo PC are Architects, Planners, and Construction Managers providing Professional Services to Public and Government Agencies.


What makes us different is our fanatical commitment to Reliable CARE: we are Reliable Capable, Astute, Responsive, & Empathetic.


After 50 years in business, we have project experience in a wide range of markets within the New Jersey State, New York State, and New York City metropolitan region.


Currently, our most active markets are Military, Transportation, Housing, and Education.


Our clients are Government, Transportation Agencies, Private Corporations, Schools - Universities, and some of the largest engineering firms in the world.


MNRR Harmon Yards Rail Maintenance Facility, Croton-on-the-Hudson NY


DiGeronimo PC prepared half of the architectural construction contract documents for Phase V.2 Running Repair Shop and Blowshed for Harmon Yards Rail maintenance Facility at Croton-on-the-Hudson NY for the client Metro-North Commuter Railroad (MNR,) a subsidiary of the Metropolitan Transportation Authority (MTA.)


The MNR Harmon Yard was the largest rail maintenance facility in the US.  Phase V.2 Running Repair Shop and Blowshed was valued at between $300-400 million.  The project included demolition of Building 6 and construction of a new Running Repair and Support Shop Facility with Blowshed.  DiGeronimo PC was WBE architect subconsultant to Jacobs Engineering Group in association with WSP; for the lead ECCO III Enterprises, along with joint venture partner Skanska USA Civil Northeast for this Design-Build Project.

PATH 9-car / 10-car platform extension, Journal Square Jersey City NJ and Newark Penn Station NJ


DiGeronimo PC holds a Call-in Architectural Contract with the Engineering / Architecture Design Division Port Authority of New York & New Jersey.


DiGeronimo designed the PATH platforms at Journal Square NJ and Newark NJ to accept 9-car trains to meet increased ridership demands.  The project design included replacement of architectural elements, ADA tactile strips, new rubbing boards, signaling and monitor adjustments, and structural repairs.  DiGeronimo prepared construction contract documents and provided construction administration services for this work.   DiGeronimo arranged the construction scheduling scenario to accommodate the 24-7 operation of PATH.

Temporary Moveable Buildings, Tappan Zee Bridge


DiGeronimo PC designed four temporary buildings for use by Tappan Zee Constructor’s on their two construction mobilization sites re-using Shipping Containers.  The DiGeronimo design included the use of twelve shipping containers per building as sides of the structures, in each of four buildings.  The DiGeronimo design used prefabricated wood trusses as the roof that spanned the shipping container sides.


All four buildings were located on the working mobilization sites used for the construction of the Tappan Zee Bridge.  Three of the temporary buildings housed maintenance and repair operations of land-side construction vehicles.  One building was erected, taken down, and re-erected several times over the overall construction program.  This one building housed the vehicles that re-arranged the zip-barriers for car traffic control for the staging of land-side construction operations.

New DPW Maintenance Building, Township of Mahwah, NJ

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The Township of Mahwah, faced with the need of a new DPW Vehicle Storage and Maintenance Facility, retained DiGeronimo PC to analyze the proposed construction of a new building on an existing environmentally sensitive site, to be altered significantly to accommodate the building program.  The project was to be completed in two phases.  Specifically, Phase I undertook the site work and was awarded to a general contractor, while Phase II would address the building construction.  This process was considered to reduce construction costs and maintain overall project budget.


DiGeronimo PC was asked to analyze and evaluate the project for feasibility and cost control.  Following a cursory review of the overall project approach, we determined that the two-phase approach was flawed in its approach because approval of Phase I would not only environmentally compromise the site, but inevitably trigger the completion of Phase II without addressing the underlying causes of cost-control.


DiGeronimo PC recommended that the entire project be re-evaluated for feasibility while addressing the building space program needs and determined the best approach to limit the site work and contain the project costs within the approved project budget.  As a result, the Township suspended the Phase I site work contract, and DiGeronimo PC was hired to undertake the redesign.