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For the first time since November 2021, Canyon Lake has reached full capacity, following a series of large storms that caused flooding along the Guadalupe River, the lake’s main tributary.
How it happened: Canyon Lake levels have increased in part due to rainfall in the upper Guadalupe River Basin from the July 4, 2025, floods, which increased inflows into the reservoir and raised the elevation by nearly 15 feet by August 2025, Lindsey Campbell, communications director for the Guadalupe-Blanco River Authority, or GBRA, said in an email to Community Impact. The lake’s water levels also reached 909 feet mean sea level, or MSL, following heavy rainfall from the week of July 13. The reservoir was at 61% capacity in July 2025, according to data from the Texas Water Development Board.
Now that the lake is full, seven boat ramps managed by Comal County have reopened, with plans to open more in the future once debris clears Precinct 1 Comal County Commissioner Doug Leecock said.
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