Lake Somerville water level
Yegua Creek · Texas · operated by USACE (Somerville Dam)
By Michael, independent developer behind zovo.one. Readings pulled live from the same USGS feed the operator reports to.
Lake Somerville is 86.2% full as of Nov 5, 2026, per the Texas Water Development Board; the USGS gage reads 236.1 ft, 1.9 ft below full pool.
Is that normal for the date?
At 236.07 ft, Lake Somerville is lower than 66% of Novembers in 27 years of daily record.
The median for this date across 27 years is 237.47 ft, so this is -1.40 ft against the lake’s own history. Placed on a quantile ladder built from 9,257 daily readings published by USGS for site 08109900, 2000-10-01 to 2026-08-06. This reservoir typically peaks in February and bottoms out in December.
Lake Somerville today: level, trend, source and access
Level against full pool
On Nov 5, 2026 the surface sat at 236.1 ft, 1.9 ft below the full-pool mark of 238 ft. The Texas Water Development Board rates its conservation storage at 86.2% full. Of the 15 Texas lakes on this site with a live percent-full reading, it ranks 8 of 15.
Trend
Between Oct 7 and Nov 5 (29 days) the level fell 0.7 ft, about 0.2 ft a week. The high in that window was 236.7 ft on Oct 7 and the low was 236.1 ft on Nov 5. In the last 7 days it held level. The last 24 hours changed it by less than 0.1 ft.
Data source
The elevation comes from USGS monitoring location 08109900 (lake surface elevation above NGVD 1929, parameter 62614), last reported Nov 5, 2026. Percent full is the Texas Water Development Board daily storage estimate for the same lake. Feet from full pool, the trend and the figures above are computed from that reading and the published full-pool elevation; none is typed by hand. USACE (Somerville Dam) runs the dam on the Yegua Creek.
Recreation status
Status: healthy. At 86.2% full it is 26.2 points above 60%, the line above which most ramps stay in the water, so a normal ramp day is likely. Ramps still close on their own schedules, so check yours with USACE (Somerville Dam).
Check an elevation against full pool
For readers outside the U.S., the surface of Lake Somerville is about 72.0 m above sea level, and full pool is about 72.5 m.
Check any elevation yourself. Type a level in feet above sea level (a ramp cutoff, a marina mark) to see how far it sits below full pool and in meters.