Understanding the ground's elevation to sea level is crucial when contemplating construction or replacing equipment that must be positioned above the flood level at a specific site. While obtaining an Elevation Certificate from a professional land surveyor is typically required for references, the ground elevation map is a valuable resource.
This map displays elevation data collected at ten-foot intervals through aerial LiDAR (Light Detection and Ranging) technology. The LiDAR measurements, depicted in black, exhibit a precision range within a few inches, plus or minus.
Elevations noted in red text signify measurements conducted by surveyors on-site at the lowest adjacent grade near the building. These surveyor measurements offer greater accuracy, although they may not always be readily accessible.
These readings were converted from their original 1988 NAVD datum to the 1929 NGVD datum (approximately -1.35’) to match the current flood maps.
