Lake Bob Sandlin water level — Texas
Lake Bob Sandlin in Texas was last measured at 335.63 ft (datum NGVD29), as of Aug 31, 2026, 3:00 AM (UTC-05:00) (USGS Water Services). That is 91.8% of conservation-pool capacity. Over its recent trend window the level has been falling (−0.7 ft). This reading is provisional and subject to revision.
- % of conservation pool full
- 91.8%
- Storage
- 197,815 acre-ft
- Recent trend
- ↓Falling
−0.7 ft over the trend window
Recent trend
Readings this station published between Jun 2, 2026 and Aug 31, 2026 — a 89-day window — downsampled for display.
Data: USGS Water Services (waterservices.usgs.gov) and USACE CWMS Data (cwms-data.usace.army.mil), retrieved 2026-08-31. Both public domain (a work of the U.S. Government, 17 U.S.C. §105).
Source: USGS site 07344489 · USACE SWF/BSLT2, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00). Official page for this lake →
About this gauge's record
This site's drainage basin covers approximately 239 sq mi of contributing watershed. USACE's continuous elevation record for this project begins in 2014 (3 tracked series for this project).
The dam behind Lake Bob Sandlin
Lake Bob Sandlin is held back by Fort Sherman Dam , an earthfill embankment, holding the pool back by sheer mass and an impervious core rather than by the strength of concrete , standing 69 ft high and running 7,060 ft along its crest , built across BIG CYPRESS CREEK in Titus County . It was completed in 1978 , and is owned by TITUS COUNTY FWSD (a local government owner) , to a design credited to URS AND FORREST AND COTTON.
Its recorded primary purpose is water supply — delivering water to its customers comes first, so drawdown here follows demand as much as it follows rainfall .
It is founded on soil, with a earth core. Its outlet works use other controlled1;slide (sluice gate)1;uncontrolled1.
NID classes it high hazard potential. That describes what a failure would cost downstream — loss of life would be expected — and says nothing about how likely a failure is, or what condition the dam is in. Its most recent condition assessment was satisfactory — no deficiencies recognised for expected loading. That assessment is dated 12/04/2025.
At its normal pool the reservoir covers about 9,004 acres. NID records a maximum storage of 306,093 acre-ft against a normal storage of 204,678 acre-ft. Its maximum discharge capacity is 234,603 cubic feet per second. It is regulated by TCEQ.
Dam facts: National Inventory of Dams record TX04785 , filed by Texas — U.S. Army Corps of Engineers, public domain. Water levels above come from USGS Water Services and are a separate source. (How this dam was matched to this gauge →)
How Lake Bob Sandlin compares nearby
5 of 6 nearby lakes with a current trend are also falling right now.
Nearby lakes
The six nearest published lakes by centroid distance (great-circle) — cross-state neighbors included.
| Lake | State | Level | Distance |
|---|---|---|---|
| Monticello Reservoir | TX | 335.48 ft | 3 km |
| Lake Cypress Springs | TX | 376.41 ft | 15 km |
| Little Cypress | TX | 235.76 ft | 51 km |
| Lake Fork Reservoir | TX | 399.18 ft | 57 km |
| Lake Sulphur Springs | TX | 458.08 ft | 58 km |
| Lake O' the Pines | TX | 228.18 ft | 59 km |
Frequently asked questions
- What is the current water level of Lake Bob Sandlin?
- As of Aug 31, 2026, 3:00 AM (UTC-05:00), the pool elevation was 335.63 ft (datum NGVD29), provisional and subject to revision. See the trend chart above for the recent direction.
- Is Lake Bob Sandlin full right now?
- The source reports it at 91.8% of conservation-pool capacity as of Aug 31, 2026, 3:00 AM (UTC-05:00).
- Where does this data come from?
- From USGS site 07344489 · USACE SWF/BSLT2, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00).
More in Texas
See every lake tracked in Texas, or read the methodology behind these figures.