Canyon Lake refills after record low, reopening most boat ramps

Canyon Lake in Texas Hill Country has returned to its conservation pool for the first time since 2021 after a mid-July flood pushed the reservoir up more than 19 feet in days. The rebound has reopened 17 of 20 public boat ramps and restored a key recreation and economic asset for the region.

Why it matters: - Canyon Lake’s rapid refill restores boating, swimming and shoreline recreation after a drought period that hurt tourism, lake use and local confidence. - The reservoir’s return to conservation pool also signals a major shift for the Texas Hill Country after the lake hit its lowest recorded level in 2025. - The recovery has direct economic implications for waterfront property sales, lake businesses and seasonal visitation.

What happened: - Canyon Lake reached 910.08 feet as of 11 a.m. on August 10, 2026, putting the reservoir slightly above its conservation pool elevation of 909.00 feet. - The lake was last at conservation pool on November 28, 2021. - The reservoir fell to a record low of 876.96 feet, or 45.1% full, in May 2025. - By mid-July 2026, Canyon Lake had recovered to about 61% full before a historic flood pushed it back to full capacity. - Brett Mazey, Canyon Lake Manager for the U.S. Army Corps of Engineers, said the lake had reached conservation pool for the first time in four and a half years.

The details: - The rebound followed 15 to 20 inches of rainfall across the upper Guadalupe River watershed near Kerrville between July 13 and July 18, 2026, according to the National Weather Service Austin/San Antonio office. - Flows on the Guadalupe River at Comfort peaked at about 200,000 cubic feet per second on the morning of July 16, compared with roughly 800 cubic feet per second before the storm. - Canyon Lake rose 19.83 feet between July 14 and July 18 and reached 909.00 feet on the morning of July 21. - The lake rose 10.16 feet on July 17 alone, the fourth-largest single-day rise in the daily record that begins in 1988 and the largest ever while the lake was below full. - The four-day rise was the largest ever measured while Canyon Lake was below full pool and topped the previous mark of 11.45 feet set during the July 2025 flood. - Larger floods in the lake’s record began when the reservoir was already full, including the July 2002 flood of record, which pushed Canyon Lake to 950.32 feet and over its emergency spillway. - As of August 10, 17 of Canyon Lake’s 20 public boat ramps were open, including 10 free ramps. - Comal County had eight of its nine ramps open at no charge. - The U.S. Army Corps of Engineers operates two additional free ramps, Little Jacob’s Creek and Potter’s Creek West, that are often overlooked. - Paid access remains available at Comal Park, Cranes Mill Park and Canyon Park through the Water Oriented Recreation District, at Jacobs Creek Park through Joint Base San Antonio, and at Canyon Lake Marina. - Three public ramps remain closed: Comal County’s Ramp 22 at Canyon Lake Shores because of debris accumulation, the Corps ramp at Potter’s Creek East for registered campers, and Cranes Mill Marina while debris is cleared and the marina is relocated before reopening its ramp. - None of the remaining closures are due to lake level, and every ramp clears its low-water threshold at the current elevation. - Joint Base San Antonio has permanently closed Ramp 16 at Hancock Cove with no plan to reopen it, leaving Canyon Lake with 22 ramps in service or capable of service instead of 23. - The muddy floodwater that moved down the river arms has cleared, and the lake has returned to its clearer blue-green color. - Water quality testing at multiple locations found conditions within acceptable standards for contact recreation. - Swimming is at the individual’s discretion and is prohibited in boat ramp areas. - On August 5, the Guadalupe-Blanco River Authority said that, in coordination with the Corps of Engineers, Canyon Dam releases would move to a constant 300 cubic feet per second beginning August 6.

Between the lines: - The lake’s comeback undercuts the idea that Canyon Lake’s condition should be judged month by month; large flood events can change the reservoir quickly. - Hunter Croan, owner of The Lakefront Group, said the lake filled completely in four days after being at an all-time record low 14 months earlier. - Hagan Cohle, a buyer specialist with The Lakefront Group, said property showings returned after the lake refilled, after about six weeks without any showings. - Because five separate authorities operate the ramps, no single agency publishes a combined status list. - The Lakefront Group maintains an online Canyon Lake Boat Ramp Guide that compiles ramp status, operating authority, cost and water-level thresholds into one updated resource. - Ramp operators can open or close ramps at any time for debris, staffing or safety reasons, so boaters still need to check conditions before traveling.

What’s next: - Canyon Dam releases are set at a steady 300 cubic feet per second to gradually ease the lake back toward its normal conservation pool while balancing downstream conditions. - Boat ramp access may continue to change as operators finish debris removal, adjust staffing or address safety issues. - The reservoir’s rebound is likely to keep improving boating access and market sentiment around Canyon Lake in the near term.

The bottom line: - Canyon Lake moved from record low to full in just 14 months, turning a drought story into a fast rebound for recreation, water access and the local waterfront economy.