Elevation contours at 2 foot intervals for the State of Delaware were produced for New Castle and Kent Counties based on the 2007 LIDAR) and for Sussex County (based on the 2005 LIDAR.) Data are in line shapefile format.
Compiled to meet 2-meter horizontal accuracy @ 95% confidence level. Meets or exceeds FEMA Accuracy standard for use in flood mapping and remapping work.
Compiled to meet 15 centimeter vertical accuracy @ 95% confidence level. Actual observed average accuracy for the original DEM base data is 10.2 centimeters.