StratMap 2012 50cm TCEQ Dam Safety Sites

Date(s): Coverage Availability/Geographic Extent: Footprint: Source(s):
2012 Small Portions of Marion, Harrison, Smith, Henderson, Anderson, Ellis, Hood, Johnson, Callahan, Bandera 1/64 USGS Quadrangle TNRIS

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StratMap 2012 50cm TCEQ Dam Safety Sites is in the public domain and available from the Research and Distribution Center for the cost of reproduction.

Data Details

Available Formats: LAS
Alternative Data: 1.5M Hydro-Enforced DEM, 3D Breaklines
Derivative Data: 5ft Contours
Known Issues: None
Recommended Uses: Basemap, Research, Analysis
Spatial Reference:

EPSG 26914


Topographic mapping of eleven small project sites mapped throughout Central and Eastern Texas in April of 2012. Site A consisted of a total of 40 individual tiles. The product covered by this metadata file consists of classified Lidar point clouds in .LAS format, collected with a Trimble Harrier 68i Lidar sensor by SAM, Inc.

The purpose of this Lidar data is to become part of an ongoing data collection by the State of Texas to support mapping and modeling of flood plains, hydrography, and terrain. The data will also be used by the Texas Commission on Environmental Quality (TCEQ) Dam Safety staff in the performance of hydraulic modeling to determine potential areas of inundation downstream of dam structures for inclusion in Emergency Action Plans and to more accurately assess the downstream hazard rating.

This dataset was acquired through the High Priority Imagery and Data Sets (HPIDS) contract. The contract was created in 2009 to maximize spending power by coordinating geospatial data purchases to share costs and to ensure that acquired data meet high standards of quality. The successor to HPIDS is the StratMap contract, established in 2015.

Supplemental Information

Tile Index: Download File
Project Report(s): Download File