What does it take to fill a lake?

Showers this week brought the level up about 1/2 foot at Lake Granbury. But it’s a different kind of rain that’s needed to fill the lake, still over 5 feet low.

Five inches of heavy rain over the drainage area upstream from Granbury could do the trick.

“The drainage area upstream that produces runoff to Lake Granbury covers about 16,000 square miles and extends west to the area around Lubbock,” said Brad Brunet, water services manager for the Brazos River Authority.


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