Geomorphology and Bank Erosion Study of A River in South Texas


Bank erosion along a river in South Texas has damaged or threatened houses, roadways, and public facilities for decades. SDI was contracted by an Engineering company to provide equipment and technology to map the river geomorphology and bank characteristics for a 3.3-mile study area. The collected data was used for providing detailed measurements of erosion and assessing erodibility information. 

SDI DJB-1243 Dual Jon Boat


The survey equipment was selected to accommodate the shallow water and limited access at the study site. The acoustic bathymetric data was acquired by an SDI SC-200 bathymetric survey system equipped with a DGPS navigation system. Furthur geomorphic characterization of the river banks relied on RTK GPS survey and boat-based mobile laser range survey. The xyz data from different surveys were combined and processed to create the digital elevation model.  


High-resolution bathymetric maps, as well as a digital elevation model, for the 3.3-mile river channel, were generated to perform hydrological modeling in order to assess the erodibility information.  

Equipment Used

RTK Surveying

River bottom elevation contours

Worldwide Distributors

Specialty Devices Inc.
2905 Capital St.
Wylie Texas 75098

972-429-7240 office

European Distributors

Aquifer Advies bv
Ben ten Toom
Dr. Langeveldplein 6
3361 HE Sliedrecht
0184 – 413147
06 – 24745947

About SDI

For over 30 years, SDI has designed and manufactured bathymetric and sub-bottom survey systems, sediment coring devices, and other specialized survey systems. SDI also provides geospatial, geophysical, hydrographic, sub-bottom, and sediment sampling services.