Elevation Data

Shaded relief image showing the river channel, hills, and highway construction topographyThese elevation data sets were derived from LiDAR data collected in 2004 by Merrick and Company and in 2007 by Woolpert, Inc. The data are available as raster Digital Elevation Models (DEMs) and as Triangulated Irregular Networks (TIN) in two different formats.

Raster Digital Elevation Models

These Digital Elevation Models are stored in TIFF format and have a horizontal spacing of 2.5 meters.

TIN Elevation Data

Triangulated Irregular Network (TIN) data are available in two formats. The data files are large, ranging in size from 200 to 1,600 megabytes. If these files are too large for you to download, please submit a request and we will send you the data.

TIN Elevation Data, ESRI TIN Format

TIN Elevation Data, ESRI Generate Format