Canyon Release and Flow Notices
Per USACE - Starting at 8 a.m. Wednesday, the releases at Canyon Reservoir will be reduced to 1,100 cfs and remain at this rate through Friday morning. Friday morning the releases will be reduced to 500 cfs. Sunday at 7 p.m., the releases will be increased to 1,100 cfs.
Watershed Summary + more
Current Conditions + more
J-17 Well 676.7 msl (-0.9)
Guadalupe @ Spring Branch 849 cfs (-29)
Canyon Reservoir 910.64 msl (+0.05)
Guadalupe @ Sattler 497 cfs (-553)
Comal Springs 397 cfs (+0)
San Marcos Springs 336 cfs (-2)
Guadalupe @ Gonzales 2280 cfs (-790)
Guadalupe @ Victoria 4900 cfs (-1770)
Coleto Reservoir 98.18 msl (-0.02)
Guadalupe @ Tivoli 2560 cfs (+50)
(+/-0.00) - indicates change in 24 hours.
Sources of Flow at Victoria
Canyon Release 10.14%
Comal Springs 8.10%
San Marcos Springs 6.86%
Natural Base Flow 74.90%
Percentages reflect sources. Losses and diversions not included.
Last 28 days at:

Preservation Matters

The Guadalupe-Blanco River Trust was founded in 2001 to conserve land in the Guadalupe River Watershed.

San Antonio Bay Foundation

Founded in 2008 to protect and preserve the Bay and Estuary at the end of the Guadalupe River Basin.

Canyon Lake Gorge

Within days following the Flood of 2002, the floodwaters carved a gorge into the landscape below the Canyon Lake Spillway.

Guadalupe River Foundation

Formed to establish a system for funding construction, operation and maintenance of environmental learning centers and programs.

© 1998 Guadalupe-Blanco River Authority

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