Water School

The rate of the river flow is measured in cubic feet per second (cfs), which is the measure of the volume of water passing any given point in a river in one second. One cubic foot of water is about the size of a beachball. These levels are measured by the United States Geological Survey (USGS) along the course of the waterflow at different points, or subsections, along a marked line. A river will typically be measured approximately 25 to 30 times at regularly spaced locations. USGS gage loc...

A variety of maps of the Brazos basin can be found on the BRA’s website by clicking here.

The Brazos River is the longest river contained entirely in Texas, with its watershed stretching from New Mexico to the Gulf of America. The Brazos River draw lies approximately 50 miles west of the Texas-New Mexico border, beginning a watershed that stretches 1,050 miles and comprises 44,620 square miles, 42,000 of which are in Texas.The Brazos River proper is formed at the confluence of the upper forks of the river, the Salt and Double Mountain, in Stonewall County. The Clear Fork joins t...

The U.S. Army Corps of Engineers oversees such activities in Texas’ rivers. To obtain a permit to build a structure into the Brazos River bed, contact the Corps of Engineers regional office closest to your home or property. 

The headwater is the upper reaches of a stream or reservoir. It can also include the merging of streams that come together to form a river.The Brazos River’s headwater begins at the confluence of its Salt Fork and Double Mountain Fork near the eastern boundary of Stonewall County. The river stretches a total of 938 miles across the state of Texas.Knowledge surrounding a stream or river’s headwater can provide important information about the sources or causes of pollution and nutrient...

Alluvium is sand, clay, gravel, silt or other material deposited by a stream in a streambed, on a flood plain, delta, or base of a mountain.