Lake Bonham water level — Texas
Lake Bonham in Texas was last measured at 563.25 ft (datum NGVD29), as of Aug 31, 2026, 3:00 AM (UTC-05:00) (USGS Water Services). Over its recent trend window the level has been falling (−1.0 ft). This reading is provisional and subject to revision.
- % of conservation pool full
- Not reported
- Storage
- Not reported
- Recent trend
- ↓Falling
−1.0 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 07332610, 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 29 sq mi of contributing watershed.
The dam behind Lake Bonham
Lake Bonham is held back by Lake Bonham Dam , an earthfill embankment, holding the pool back by sheer mass and an impervious core rather than by the strength of concrete , standing 53 ft high and running 3,800 ft along its crest , built across TIMBER CREEK in Fannin County . It was completed in 1969 and modified in 1989S;1999H , and is owned by CITY OF BONHAM (a local government owner) , to a design credited to UNKNOWN;WISENBAKER FIX & ASSOCIATES;WISENBAKER FIX & ASSOCIATES.
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 spillway is ungated: once the pool reaches the crest, water leaves on its own and the operator cannot hold it back. The spillway opening is 420 ft wide. Its outlet works use uncontrolled2;valve2.
NID classes it significant hazard potential: a failure would be expected to damage property and infrastructure rather than cost lives. It is a consequence rating, not a condition rating. Its most recent condition assessment was fair: sound under normal loading, though a rare or extreme event could expose a deficiency. That assessment is dated 01/28/2022.
At its normal pool the reservoir covers about 1,105 acres. NID records a maximum storage of 43,761 acre-ft against a normal storage of 11,038 acre-ft. Its maximum discharge capacity is 2 cubic feet per second. It is regulated by TCEQ.
Dam facts: National Inventory of Dams record TX00402 , 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 Bonham compares nearby
3 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 |
|---|---|---|---|
| Bois D'arc Lake | TX | 532.47 ft | 20 km |
| Lake Texoma | TX | 616.80 ft | 42 km |
| Denison Dam | TX | 616.19 ft | 43 km |
| Lake Crook | TX | 475.06 ft | 56 km |
| Jim L. Chapman Lake | TX | 436.30 ft | 61 km |
| Pat Mayse Lake | TX | 450.06 ft | 62 km |
Frequently asked questions
- What is the current water level of Lake Bonham?
- As of Aug 31, 2026, 3:00 AM (UTC-05:00), the pool elevation was 563.25 ft (datum NGVD29), provisional and subject to revision. See the trend chart above for the recent direction.
- Is Lake Bonham full right now?
- Its managing agency does not publish a %-of-conservation-pool-full figure for this lake, so we show the bare level rather than estimate one.
- Where does this data come from?
- From USGS site 07332610, 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.