Home >> Texas Clean Rivers Program >> State of the Basin >> Special Studies on Priority Watersheds >> 2006-2007 Special Studies >> Lower Sabine Basin Tidal Study

Basin Info. & News

Water Availability

Water Conservation

Water Quality

Lake Levels & River Conditions

Recreation & Parks

Economic Development

About the Authority


The Lower Sabine Tidal Study (LSTS) documented the extent of saltwater intrusion, the affects of tide on flow, the sediment and nutrient concentrations of freshwater flowing into Sabine Lake and attempted to better understand the dynamic nature of this complex river system. The LSTS was conducted by the Sabine River Authority of Texas under the Texas Clean Rivers Program in cooperation with the Texas Commission on Environmental Quality. Sampling was conducted bi-monthly from 02/22/06 through 02/22/07 from SH12, at river mile 40.2 at the Sabine River near Ruliff, Texas, to the mouth of the Sabine River at the northeast end of Sabine Lake. The study area included sites in Adams and Cow Bayous in Texas and on the Gulf Intracoastal Waterway and Black Bayou in Louisiana. The most upstream intrusion of the saltwater wedge was on the Old River Channel near Nibletts Bluff, LA. Tidal saltwater flowed predominately upstream during low stream flow and during high tide conditions. Adams and Cow Bayous followed the general flow direction of the Sabine River; however this was not true of the flow in Black Bayou and the Gulf Intracoastal Waterway. The flow in Black Bayou was consistently counter to the tidal flow in the river and was most likely the result of hydrologic changes from the Gulf Intracoastal Waterway. There appeared to be no relationship between sediment, in the form of suspended solids, and flow. Nutrient concentrations were assessed using total Kjeldahl nitrogen (TKN) and total phosphorus (TP) and found to be fairly uniform across the stream profile and within ranges typical for the lower Sabine River.

View or download report: PDF pdf.gif (3.2 MB) (153 Kb).

pdf.gif (207 bytes) This report requires the Adobe Acrobat Reader; see here for more information and to download the Reader.

Prepared in Cooperation with the Texas Commission on Environmental Quality Under the Authorization of the Texas Clean Rivers Act.

To address comments to the Sabine River Authority of Texas, please contact us.
This page requested on 5/22/2019 at 5:38:15 AM CST
Home | Privacy Policy
Labelled with ICRA Internet Content Rating Association
State of Texas Web Site Logo State Web SiteTRAIL Logo (Texas Records and information Locator Service) Statewide Search