Stillhouse Hollow Lake
Source: Texas Water Development Board (Water Data for Texas)
SE 10 mph · rain 0%
SSE 0 to 5 mph · rain 1%
Level history
Field notes
On Oct 25, 2026, Stillhouse Hollow Lake was at 620.76 ft, which is 96.6% of its conservation capacity.
That is 1.24 ft below the conservation (full) pool elevation of 622.00 ft.
Over the past 7 days the lake has been falling (−0.24 ft), and it is −0.02 ft over 30 days.
Compared with a year ago (621.50 ft), the lake is 0.74 ft lower.
For this time of year, the median in TWDB's records (1996–2025, 30 years with data) is 98.2% full, so Stillhouse Hollow is currently close to normal.
In TWDB's dataset (since 1988), the highest level recorded is 663.99 ft (Jul 17, 2007) and the lowest is 600.00 ft (Sep 8, 1999). Older records may be monthly rather than daily.
Lake facts
| Full pool (conservation) | 622.00 ft |
|---|---|
| Dead pool | 515.00 ft |
| Conservation storage | 221,934 ac-ft |
| Conservation capacity | 229,796 ac-ft |
| Total storage (latest) | 222,020 ac-ft |
| Surface area | 6,254 acres |
| Record high (TWDB data) | 663.99 ft · Jul 17, 2007 |
| Record low (TWDB data) | 600.00 ft · Sep 8, 1999 |
| Typical % full now | 98.2% (median 1996–2025) |
| Gauge location | 31.0224, -97.5328 |
| Groups | Brazos River Basin Brazos G (Region G) Water Planning Area Water supply for Austin |
Nearby lakes
Common questions
Is Stillhouse Hollow Lake full right now?
No – as of Oct 25, 2026 it is 96.6% full according to TWDB.
What is full pool for Stillhouse Hollow Lake?
The conservation pool elevation used by TWDB is 622.00 ft. The lake is currently 1.24 ft below it.
Is Stillhouse Hollow Lake rising or falling?
Over the last 7 days it changed −0.24 ft and over 30 days −0.02 ft.
How often is this page updated?
The page is rebuilt automatically every day from TWDB's published data. Values can be revised later by the source agency.
Where does the data come from?
Water Data for Texas, run by the Texas Water Development Board, which compiles gauge readings from USGS, USACE, river authorities and others. Forecasts come from the National Weather Service.
Values are TWDB daily estimates; elevations in feet above the vertical datum stated by TWDB. TWDB disclaimer: reservoir data are best estimates generated by the Texas Water Development Board from data collected by various providers; TWDB makes no warranties as to their fitness for any purpose. See data sources.