Home [Skip to Content]
Floodplain Mapping
Texas Highwater Mark Inventory
The Highwater mark inventory is created by TNRIS Floodplain Mapping Team. It consists of several sources of highwater mark including Corps of Engineers, Tx DOT, Communities and the public. This inventory is often updated. If you questions, have a photo or information on a highwater mark please send it to us at highwatermarks@tnris.org.
LiDAR Available
LiDAR Available From TNRIS

Airborne LiDAR projects in Texas began in 2006 with funding from the Federal Emergency Management Agency (FEMA). Increasing demand and evolving research on the uses of LiDAR has made it one of the premier datasets for Texas. LiDAR goes beyond traditional bare earth digital elevation models (DEMs) by producing point cloud information that can be classified into existing features such as vegetation and man-made structures. A common format for saving point clouds (with parameters like x, y, return, intensity, elevation) is the LAS file format. Other deliverable products from LiDAR technology may include XYZ text files, Intensity Images, DEM bare ground elevations, Hydro-enforced breaklines and metadata.

The cost of LiDAR production makes it difficult to achieve coverage for the entire state. Priority is given to areas in Texas where the area is densely populated and prone to flooding or where partnership funding gives leverage. Contact TNRIS for more information on how to participate in obtaining LiDAR for your area.

These data were acquired by various entities, including CAPCOG, FEMA, City Of Grand Prairie, Hidalgo County Flood Control, IBWC, LCRA, TNRIS, USGS. Post spacing ranges from .5M to 1.8M.

For more information or to order LiDAR products and services, use the button below.

Service Order Form

Available LiDAR data for Texas.
LiDAR Available From Others

Note: Additional LiDAR is also available from Houston Galveston Area Council of Government.

NAIP 2012 Status
Regional Imagery Datasets

TNRIS houses several regional datasets throughout Texas for varies years.

Current Weather
Current Weather
Since 2003, the Iowa Environmental Mesonet (IEM) with Iowa State University Department of Agronomy has been generating and archiving nationwide composites of NEXRAD base reflectivity every 5 minutes. These composites are generated by combining the 130+ individual RADARs that comprise the NEXRAD network. For Additional Information, Please visit: http://mesonet.agron.iastate.edu/docs/nexrad_composites/
Map Service Center

TNRIS archives, maintains, and distributes the largest collection of current and historical spatial geographic data sets for the State of Texas. The collection of maps, photos, documents and other spatial datasets have been contributed from multiple sources.
Read more about Map Service Center >>

Historical Aerial Photography
Historical Aerial Photograph
Research Services
Custom Research Service
Custom Map Products
Hardcopy Map Products