Contact Info

Janet and Dennis Blanchette

J & D Civil Engineers, LLC
Thompson, CT


Phone: (860) 923-2920

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Recreational Facilities

  • survey
  • planning
  • design

recreation area

Representative Project List

  • Prince Hill Recreation Area – Brooklyn, CT
  • Pomfret Recreation Area – Pomfret, CT
  • Quinebaug River Trail Extension - Putnam, CT
  • Putnam Elementary School Playscape – Putnam, CT
  • Mary Fisher Elementary School Playground – Thompson, CT
  • St. Marie-Greenhalgh Field – Putnam, CT


Prince Hill Recreation Area

Prince Hill Recreation Area


  • survey
  • planning
  • site plan design
  • utility design
  • permitting
  • contract administration and construction stake out

Representative Project List

  • Thompson Public School Additions
  • Killingly High School
  • Justice Resource Institute - Susan Wayne Center
  • Putnam Public Schools

Thompson Public School

Thompson Elementary School - Thompson, CT

Road Design

  • reduce drainage problems
  • correct sight distance problems
  • horizontal and vertical realignment
  • intersection realignment
  • pavement management
  • sidewalk and ramp installation

Representative Project List

  • Church Street Reconstruction - Putnam, CT
  • Five Mile River Road Reconstruction – Putnam, CT
  • Quaddick Town Farm Road Reconstruction – Thompson, CT
  • Christian Hill Road Reconstruction – Brooklyn, CT
  • Upper Maple Street Road Reconstruction – Killingly, CT
  • Picabo Street and Pequot Circle – Killingly, CT
  • Heritage Circle – Thompson, CT
  • Ridge Road – Putnam, CT


Installation of New Sidewalks on Church Street – Putnam, CT



Reconstruction of Cook Hill Road and Valley Road Intersection – Killingly, CT


Water Mains

J & D has designed numerous water mains for its municipal and private clients.

Representative Project List

  • Route 171 Water Main Extension and Replacement, Putnam, CT
  • Eastwood Hills Subdivision, Killingly, CT
  • Heritage Pine Estates Condominiums, Putnam, CT
  • Bakers Dozen & Car Wash, Plainfield, CT


Wastewater Management

  • Planning
  • Design
  • Contract Administration
  • Construction Inspection
  • O & M Manuals
  • Odor Control
  • Financing

J & D’s experience in the wastewater field is extensive. As Chief Engineer for the Town of Waterford, Dennis was responsible for the planning, design and construction of a 60 million-dollar sanitary sewer system. It consisted of over 100 miles of sewer and 24 pumping stations of various sizes and capacities. We have also designed many miles of sewer for towns, developers, industrial and commercial clients. J & D can provide services in virtually any aspect of the wastewater collection field including preparation of facility plans, design, construction administration and inspection. We are thoroughly familiar with all aspects of wastewater collection including gravity systems, pumped systems and low-pressure systems. For municipal clients we can also assist with odor control problems, O & M manuals and issues related to operating & maintaining a sewer collection system, including financial aspects.

Representative Project List

  • Killingly High School – 4500 feet of sewer, Killingly, CT
  • Heritage Pine Estates Condominium - 4500 feet of sewer, Putnam, CT
  • Assawogga Heights Subdivision - 2750 feet of sewer, Killingly, CT
  • Putnam Industrial Park-1000 feet of sewer - Ridge Road, Putnam, CT
  • Little River Acres Elderly Housing Complex - 570 feet of sewer, Putnam, CT
  • Vauxhall Street, Silva Lane, Dayton Road - 6400 feet of sewer, Waterford, CT