Drone Survey Technology Helps Map North Jersey Rivers & Lower
Drone Survey Technology Helps Map North Jersey Rivers & Lower Flood Insurance Premiums
Dresdner Robin surveyor uses UAV technology to photograph rivers in Pompton Lakes, N.J., preparing borough for stream-cleaning project, FEMA program
POMPTON LAKES, N.J. – February 5, 2019 – Surveyors are harnessing the power of drone technology by focusing on at-risk riparian areas of northern New Jersey. In fact, images captured by unmanned aerial vehicles (UAV) have become part of the documentation for a Federal Emergency Management Agency (FEMA) program that saves Pompton Lakes residents hundreds of thousands of dollars per year on flood insurance premiums.
Land-use consultancy Dresdner Robin, of Jersey City, N.J., recently worked with the Borough of Pompton Lakes, N.J., utilizing image-capture flights to gather overlapping photographs of three rivers in the borough. The firm has since been involved in various mapping projects.
Dresdner Robin Survey Director Greg Gloor volunteered on a project to assess Pompton Lakes’ flood-prone waterways. Gloor flew 11 individual flights over the rivers – 215 feet above the water level. The UAV moved at 10 mph, using a 15-millimeter, fixed-zoom lens, capturing 60-foot sections of the terrain. Images were snapped every two seconds (1,042 total) and were later analyzed to locate obstructions in the river channel. The photos aided a stream-cleaning project that is part of...