For seven years, anyone keeping a boat near The Hills or Flintrock Falls learned to work around a shrinking lake. Coves that used to hold a full afternoon of anchored boats went shallow. Ramps that used to have lines on a Saturday sat half-dry. Then, on a Friday night in mid-July, Lake Travis quietly crossed a line it hadn't touched since July 2019, and unlike most rises on this reservoir, it didn't slide back down within a few weeks.
That Friday afternoon the lake was sitting at about 679 feet above sea level, close enough to its 681-foot full conservation pool that the change was visible in hours, not days. Just before 10 p.m., it got there. CBS Austin had cameras on the shoreline as it happened, and what they caught was a lake resetting itself in real time. Sandbars that had been exposed for years disappeared under the surface. Near Mansfield Dam Park, the low-water landmark locals call Sometimes Island, a stretch of rock and old juniper stumps that only shows itself when the lake is well below full, went back under. For a lot of people who boat this stretch of Travis regularly, that was the moment the drought math they'd been running in their heads finally stopped applying.
The Number That Actually Matters Isn't The Peak
A single night at full pool isn't unusual for Lake Travis. It's a reservoir, not a natural lake, and the Lower Colorado River Authority has pushed it above 681 feet plenty of times over the decades, usually for a few days before releases and evaporation pull it back down. What's different about 2026 is what happened after the peak.
As of mid-September, official readings put Lake Travis at 676.33 feet, which works out to 91.7 percent full. That's only about four and a half feet off the July peak, and it's a reading taken after the lake passed through the hottest, driest stretch of the Texas calendar, the exact months when evaporation and downstream water demand normally do the most damage to a Highland Lakes reservoir. The lake didn't just touch full pool and retreat. It held.
Compare that to where things stood only four months earlier. In mid-March, KXAN reported Travis sitting near 665.75 feet, with the LCRA's own seasonal projections warning that levels could keep sliding if rainfall came in at the median or dry end of the range. Instead, the opposite happened.
| Date | Lake Travis Elevation | What It Means |
|---|---|---|
| March 11, 2026 | ~665.75 ft | LCRA projections warned of further decline under median or dry rainfall scenarios |
| July 18, 2026, ~10 p.m. | 681 ft (full pool) | First time at full pool since July 2019, roughly seven years |
| September 16-18, 2026 | 676.33 ft / 91.7% full | Holding within about 5 feet of the July peak after the hottest stretch of summer |
A fall like this hasn't happened in the memory of a lot of current residents. Most of the boating habits built up around The Hills and Flintrock Falls over the last seven years, which cove is deep enough, which ramp still works at low water, which restaurant dock you can actually reach, were calibrated against a lake that spent most of that stretch well under full. Those habits are now out of date, and they're staying out of date longer than a typical summer flood pulse would suggest.
What That Actually Reopens Near The Hills And Flintrock Falls
The cove that holds Lakeway Marina, tucked between lake mile markers 16 and 17, is one of the clearest examples of what a full lake changes day to day. At drought-era levels, getting a boat in and out of that cove meant timing it and knowing the shallow spots by memory. At 91.7 percent full, that workaround isn't necessary anymore. The same is true just across the water at Sail and Ski Yacht Club, where the Sundancer Grill sits over the marina with a view that depends on there actually being water to look at. Both spots are back to functioning the way they did before 2019, not because anything changed about the businesses, but because the lake underneath them changed.
The broader pattern holds across the mid-lake stretch that Hills and Flintrock Falls boaters use most. Channels that had narrowed to a single navigable line during the drought have their width back. Launch points that had been quietly abandoned are usable again. None of this required construction or a public works project. It required rain, and it required the lake to keep the rain instead of giving it back within a month, which is the part that's actually new this year.
The New Hazard Nobody's Old Depth Chart Warns About
A lake that rises fast doesn't just bring water back. It brings back everything that grew, settled, or got left behind while that ground sat dry. Travis County's own advisories after the July rise pointed to exactly this problem: submerged trees, grasses, rocks, and sediment that had been sitting exposed or shallow for years are now hidden just under the surface in coves that hadn't held water in a long time.
Sometimes Island itself is the easiest illustration of this. When the rocks there have been exposed during past droughts, visitors have found chunks of old concrete foundation and gnarled juniper stumps that don't rot, leftovers from before the area was flooded to build the reservoir in the first place. That debris didn't go anywhere when the water came back in July. It's still there, now a few feet under the surface instead of sitting in plain view, which is exactly the kind of thing a hull finds out about the hard way if a boater assumes a cove is as clean as it looked a year ago.
The practical version of this for anyone launching out of The Hills or Flintrock Falls this fall is simple. A cove you gave up on in 2021 might genuinely be back in play, but the bottom of it isn't the bottom you remember, and it's not the bottom that's been growing in your head from years of low-water photos either.
If You Wrote A Cove Off During The Drought, This Is The Season To Recheck It
There's one quiet advantage that's specific to Travis rather than the lake system generally. Downstream on Lake Austin, a big rise like this one has historically fed a resurgence of hydrilla, the invasive weed the City of Austin keeps in check with sterile grass carp, and fast floodwater can push those carp downstream and thin out the population that's supposed to be doing the work. Travis doesn't carry that problem. A fuller Travis is simply more open water, without the tradeoff that shows up a few miles downriver.
None of this means every route out of The Hills or Flintrock Falls is exactly what it was before 2019. It means the lake is worth re-learning this season, cove by cove, at a level most current residents haven't actually boated on before.
If a full Lake Travis has you thinking differently about a dock, a slip, or a shoreline you already own near The Hills or Flintrock Falls, Nicole Cooper is glad to talk through what that actually means for the property itself. Request a Live Video Call whenever it's useful.
