Dewberry Providing Emergency Geospatial Support to FEMA Following Hurricanes Harvey, Irma, and Maria

Fairfax, VASeptember 22, 2017 – Dewberry, a privately held professional services firm, is currently providing geospatial support, including modeling, imagery analysis, and data interpretation, to the Federal Emergency Management Agency (FEMA) in the aftermath of Hurricane Harvey in Texas and Louisiana; Hurricane Irma in Puerto Rico, the U.S. Virgin Islands, Florida, Georgia, and South Carolina; and Hurricane Maria in Puerto Rico and the U.S. Virgin Islands. The technical analyses are assisting FEMA in the agencys response and recovery efforts, including identifying building and infrastructure damage and debris modeling.

Prior to each storm, Dewberry began collecting topographic information for areas expected to fall within the hurricanes reach. As the storms progressed, the firms coastal and riverine engineers and geospatial specialists worked in shifts around the clock to create preliminary flood depth grids using peak crest gauge data to depict inundation levels and the extent of the storms impact from the heavy rains and storm surges. The intent of the preliminary inundation grids is to provide initial situational awareness and better understand the impacts. The geospatial teams use these grids to assist FEMA in determining flood depths and damage extent, including classifications of individual building damage levels, analyses of infrastructure damage, the location of isolated communities, and the extent and location of debris accumulation from flooding events. The aerial imagery, provided by the Civil Air Patrol and NOAAs National Geodetic Survey, is analyzed as well as aerial and spaceborne Synthetic Aperture Radar, satellite imagery, field reports, and other damage observations.

The work involves personnel from multiple Dewberry offices and is being performed under the firms U.S. Department of Homeland Security (DHS) Remote Sensing for Incidents contract. Dewberrys geospatial specialists performed similar fast-tracked imagery and data analyses following Hurricanes Hermine and Matthew last fall as well as the August 2016 flooding in southern Louisiana. Dewberry has supported FEMAs various programs with technical assistance for more than 40 years.

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