Canyon Release and Flow Notices

The U.S. Army Corps of Engineers (USACE) has requested GBRA to reduce USACE flood flows from Canyon Reservoir to 400 CFS beginning at 4 AM on Friday, July 1, 2016. The 400 CFS flow will be maintained through the evening of Monday, July 4. At 9 PM Monday evening, GBRA will increase USACE flood flows to 1,100 CFS. The USACE will reassess conditions thereafter to determine future releases.

Watershed Summary + more
Current Conditions + more
J-17 Well 674.3 msl (-0.7)
Guadalupe @ Spring Branch 717 cfs (-31)
Canyon Reservoir 910.75 msl (+0.04)
Guadalupe @ Sattler 410 cfs (-534)
Comal Springs 376 cfs (+377)
San Marcos Springs 332 cfs (-2)
Guadalupe @ Gonzales 2310 cfs (-100)
Guadalupe @ Victoria 2830 cfs (+220)
Coleto Reservoir 98.02 msl (-0.03)
Guadalupe @ Tivoli 2380 cfs (-30)
(+/-0.00) - indicates change in 24 hours.
Sources of Flow at Victoria
Canyon Release 14.49%
Comal Springs 13.29%
San Marcos Springs 11.73%
Natural Base Flow 60.49%
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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