James J. Hahn Engineering is a civil and environmental engineering company specializing in consulting for local municipalities, county government, and private developers for site planning, engineering and construction administration. 

James J. Hahn Engineering consults for several municipalities in Westchester and Putnam Counties and specializes in reviewing proposed projects before their respective Planning Boards.  

We have designed numerous parks and recreational facilities, development projects consisting of commercial and industrial office parks, sidewalks and curb projects, subdivisions and related facilities.  Included in these facilities is the design of sewage treatment and water treatment plants.  James J. Hahn Engineering also has worked with the USEPA and NYSDEC in the remediation of polluted sites throughout Westchester County and lower New York State. 

Our experience also includes design of recreation centers, parks, stormwater management facilities, commercial and residential developments including the design of wastewater treatment facilities and water supply treatment plants and distribution systems.  Construction oversight is also part of our expertise which ultimately insures that the Owner is rewarded with a project as envisioned by the design professional.

James J. Hahn Engineering, P.C.

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