Alert

Practice social distancing even when outdoors.

Please follow guidance from the Centers for Disease Control and Prevention (CDC) and the Texas Department of State Health Services.

Check the status of the location you're planning to visit.

Some Texas state parks, TPWD offices, public recreation facilities and water access points are closed.

See list of temporary closures and operations adjustments.

Reports on River Studies

The following reports are available in PDF format. Contact the River Studies Program at (512) 754-6844 to request a report on compact disk. As an alternative, many reports can be downloaded directly from this page.

Draft Report

Several outside experts previously reviewed a draft report entitled “Using Water Availability Models to Assess Alterations in Instream Flows.” A summary of TPWD's responses to the reviewer’s comments is posted here, along with a revised draft report for further comment and review.