Watershed Summary more >>
Current Conditions more >>   Beta >>
J-17 Well 671.5 msl (-0.4)
Guadalupe @ Spring Branch 176 cfs (+0)
Canyon Reservoir 908.75 msl (-0.04)
Guadalupe @ Sattler 179 cfs (-6)
Comal Springs 355 cfs (-16)
San Marcos Springs 271 cfs (-5)
Guadalupe @ Gonzales 942 cfs (-868)
Guadalupe @ Victoria 1080 cfs (-190)
Coleto Reservoir 96.98 msl (-0.04)
Guadalupe @ Tivoli 2080 cfs (+110)
(+/-0.00) - indicates change in 24 hours.
Sources of Flow at Victoria
Canyon Release 16.57%
Comal Springs 32.87%
San Marcos Springs 25.09%
Natural Base Flow 25.46%
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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