A River for Our Region


The Colorado River is an important part of the past, present and future of Texas. The Highland Lakes on the river northwest of Austin provide water for more than 1.4 million users, including communities, businesses, industries, agriculture and the environment.

The lakes are vital to maintaining a reliable water supply, providing flood management in the middle of Flash Flood Alley, creating hydroelectric power for the Texas power grid and much more. Information on this page explores the variety of ways LCRA manages the lakes and lower Colorado River for the benefit of the entire river basin.

Get to know the Highland Lakes

Why are the lakes important?

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The Highland Lakes were created to manage floods and capture water when it rains to ensure the region has a reliable water supply during dry times.

Watch now: Get to know the Highland Lakes

Rain and the Highland Lakes

Where does rain have to fall to flow into the region’s water supply reservoirs?

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Water flowing into the Highland Lakes from the main stem of the Colorado River and its tributaries help refill the lakes. See the most recent monthly inflows here.

Water supply for the region

Where does water from the Highland Lakes go?

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LCRA supplies water for many uses, including municipal, irrigation, industrial, agricultural, domestic use and other beneficial uses authorized by law.

Watch now: Where does water from the Highland Lakes go

Expanding the water supply

The new Arbuckle Reservoir is expected to begin operating in late spring 2022.

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LCRA is not just talking about adding to region’s water supply – we are doing it.

Dam Maintenance

LCRA keeps our dams strong.


LCRA's dams — which create the Highland Lakes — are critical for water supplies and flood management in our region.

Watch now:Helping keep you safe along the Colorado River