Contact Info

Janet and Dennis Blanchette

J & D Civil Engineers, LLC
Thompson, CT


Phone: (860) 923-2920

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Serving Northeastern Connecticut Since 1986

Our Company

J & D Civil Engineers, LLC, has been providing surveying and civil engineering services to northeastern Connecticut and south central Massachusetts for over 30 years. We are a small local firm committed to personal, professional, and reliable service. We are very customer oriented - when you call J & D the phone will be answered by either a registered professional engineer or licensed land surveyor who will actually be responsible for performing the work on your project. Our strengths are our accessibility, timely service, listening to the needs of our clients, and attention to detail. If your schedule requires it, we can meet with you on evenings or weekends.

Municipal - Commercial - Residential

J & D provides civil engineering and surveying services to a wide range of clients including individuals, municipalities, architects, and developers of residential, commercial, industrial and institutional projects. On projects which must obtain municipal or state permits, J & D’s attention to detail and rapport with local regulatory staff combine to help streamline the permit approval process.

We Offer a Full Range of Services

Our project size varies from small projects, such as residential driveway or septic system design for individuals, to fairly large projects. We were responsible for completing, almost entirely in-house, the survey and site design for several subdivisions with greater than 20 lots as well as the Quinebaug Regional Technology Park. Working as part of a team with architects and landscape architects we performed the civil engineering for the Hale YMCA and Day Kimball Hospital’s Emergency Department renovations. For our municipal clients we design recreation fields and road and utility reconstructions.

Executive Team Credentials


is a registered Professional Engineer (CT). She earned her B.S.C.E. in 1983 at Penn State and her M.S.C.E. in 1989 at Northeastern University. Mrs. Blanchette has 28 years of experience in the civil engineering field. She has worked on a wide variety of projects, including recreational facilities, industrial and commercial site development plans, municipal road reconstruction plans, subdivision design, and stormwater management projects.


is a registered Professional Engineer (CT, MA) and a Registered Land Surveyor (CT). He earned his
B.S.C.E. in 1976 and a M.S.C.E. in 1980 at the University of Connecticut. Mr. Blanchette has 35 years of experience in the civil engineering and surveying fields. As Chief Engineer for the Town of Waterford he was responsible for the planning, design and construction of a sixty million dollar sewer system. With J & D his responsibilities include oversight of all field and office survey functions, as well as design of septic systems, water mains and sewer lines.