Dewberry Awarded GRAV-D Project as Part of NOAA Shoreline Mapping Contract

Firm to support acquisition of gravimetric data across northern and central U.S.
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Sample GRAV-D flight track. Courtesy of Dewberry

Fairfax, VA—September 24, 2021 – Dewberry, a privately held professional services firm, has announced that it has been awarded a task order for the Gravity for the Redefinition of the American Vertical Datum (GRAV-D) project, which falls under the firm’s National Oceanic and Atmospheric Administration (NOAA) shoreline mapping contract, awarded in 2020. The GRAV-D project is part of NOAA’s National Geodetic Survey (NGS). Dewberry is providing aircraft services for gravity data collection. The predominately airborne campaign will contribute to the development of a new national vertical datum, North American-Pacific Geopotential Datum of 2022 (NAPGD2022), which will provide improved height information to the country. Having accurate height data is critical information necessary to better mitigate the threats to low-lying communities and coastal ecosystems from inundation by storms, flooding, tsunamis, and/or sea level rise. Additionally, this information supports the civilian surveying community. “The goal of NOAA’s NGS is to help define the new spatial reference system,” says Dewberry Senior Associate Elise MacPherson, PMP. “Our team is excited to work alongside NOAA for the acquisition of these data as a part of the NGS goal to define the new spatial reference systems.” About Dewberry Dewberry is a leading, market-facing firm with a proven history of providing professional services to a wide variety of public- and private-sector clients. Recognized for combining unsurpassed commitment to client service with deep subject matter expertise, Dewberry is dedicated to solving clients’ most complex challenges and transforming their communities. Established in 1956, Dewberry is headquartered in Fairfax, Virginia, with more than 50 locations and 2,000+ professionals nationwide. To learn more, visit