The Colorado River and Highland Lakes | LCRA The Colorado River and Highland Lakes | LCRA

The Colorado River and Highland Lakes

Data and resources

At 862 miles, the Colorado River is the longest river entirely within Texas. LCRA’s water service area includes roughly the lower 600 miles of the river from the Hill Country to the Texas Gulf Coast.

The Highland Lakes section of the river is in the Hill Country northwest of Austin. The lakes were created to help manage floods, to create hydroelectric generation and to capture water when it rains to ensure the region has a reliable water supply during dry times. LCRA manages the Highland Lakes and Colorado River as a system to supply water for more than a million people, as well as businesses, industries, the environment and agriculture in the lower Colorado River basin.

Lake levels

How full are the lakes?


Current conditions

River Operations Report
Daily report on routine water supply operations at the dams.

Flood Operations Report
As needed report on emergency flood operations at the dams.

Inflows into the Highland Lakes (.pdf)
September 2020 inflows totaled 30,704 acre-feet – about 32% of the monthly average.

Lake levels
Current lake level information.

Basin streamflow summary
Current streamflow data in the basin.

Historical lake levels

Lake Buchanan (.xls)

Inks Lake (.xls)

Lake LBJ (.xls)

Lake Marble Falls (.xls)

Lake Travis (.xls)

Lake Austin (.xls)