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Serving Charleston SC & Mt. Pleasant SC Areas



Harold Nielson, PE & PLS

Offering Engineering-Surveying Services Since 1990

Flood Surveys

A longtime resident of Mt. Pleasant, Harold Nielson obtained his engineering degree from The Citadel, and is a licensed professional engineer and land surveyor in the state of SC.  After graduation from college, he worked with Sigma Engineers, a local civil engineering-surveying firm.  In 1977, he became the City Engineer and Director of Public Services for the City of Charleston with 265 employees.  At the same time he was also the Administrator of the City’s National Flood Insurance Program.

In 1981, Harold joined with partner Ken Gifford to form Gifford & Nielson, a multi-disciplinary engineering/architectural design firm in both Charleston, and ultimately as Gifford Nielson & Riesberg in both Charleston SC and Charlotte, NC.  The firm provided a wide range of consulting services for municipalities, The Corps of Engineers, Department of Defense, and many private corporations.  As President, Harold was the responsible manager for all design and project schedules for the 45 professionals in the firm.  In addition, both partners developed, designed, and built Molasses Creek in Mt. Pleasant, and Parrot Creek on James Island.

In 1990, Harold formed his own engineering-surveying firm, employing and training his son, Kevin in 2001 on projects for Beazer Homes, Portrait Homes, Eastwood Homes, and Lennar Homes, and several smaller builder clients throughout the Charleston area.  Most of their consulting involved a mix of engineering-surveying related services for each of the builder’s neighborhoods, such as project design, construction layout, platting and elevation certificates.

Today, Harold and Kevin are the managers of a fast-paced Charleston S.C. surveying company, primarily oriented to providing flood elevation consulting to builders, realtors, and homeowners. Our goal is to become the pre-eminent flood consulting firm in the Tri-county area.  Our services include FEMA elevation certificates, and LOMA‘s (Letters of Map Admendment) for both residential and commercial clients.


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