Mountain Creek Lake water level — Texas
Mountain Creek Lake in Texas was last measured at 456.98 ft (datum NGVD29), as of Aug 31, 2026, 2:45 AM (UTC-05:00) (USGS Water Services). That is 100% of conservation-pool capacity. Over its recent trend window the level has been falling (−0.5 ft). This reading is provisional and subject to revision.
- % of conservation pool full
- 100%
- Storage
- 23,175 acre-ft
- Recent trend
- ↓Falling
−0.5 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 08050050 · USACE SWF/GPET2, 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 295 sq mi of contributing watershed. USACE's continuous elevation record for this project begins in 2010 (3 tracked series for this project).
The dam behind Mountain Creek Lake
Mountain Creek Lake is held back by Mountain Creek Dam , an earthfill embankment, holding the pool back by sheer mass and an impervious core rather than by the strength of concrete , standing 47 ft high and running 8,200 ft along its crest , built across MOUNTAIN CREEK in Dallas County , near DALLAS . It was completed in 1936 and modified in 1999M , and is owned by CONSTELLATION TEXAS POWER SERVICES LLC (a private owner) , to a design credited to FREESE & NICHOLS INC;PHOENIX ENGINEER CORP.
Its recorded primary purpose is other .
It is founded on soil, with a earth core. Its spillway is gated, so the operator can hold the pool above the spillway crest and meter what leaves. The spillway opening is 249 ft wide. Its outlet works use other controlled1;valve1.
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 06/18/2014.
At its normal pool the reservoir covers about 2,880 acres. NID records a maximum storage of 64,372 acre-ft against a normal storage of 24,280 acre-ft. Its maximum discharge capacity is 128,502 cubic feet per second. It is regulated by TCEQ.
Dam facts: National Inventory of Dams record TX00827 , 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 Mountain Creek Lake compares nearby
Mountain Creek Lake is at 100% of conservation-pool capacity. Of the 4 nearest lakes reporting a comparable figure, none are fuller, and 4 are lower. The fullest nearby is Grapevine Lake at 94.2% and the lowest is Lake Ray Hubbard at 89%. 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 |
|---|---|---|---|
| Joe Pool Lake | TX | 520.41 ft | 11 km |
| Efft2 | TX | 408.51 ft | 13 km |
| Lake Arlington at Arlington | TX | 544.88 ft | 23 km |
| Grapevine Lake | TX | 533.49 ft | 29 km |
| Lewisville Lake | TX | 519.69 ft | 38 km |
| Lake Ray Hubbard | TX | 433.10 ft | 43 km |
Frequently asked questions
- What is the current water level of Mountain Creek Lake?
- As of Aug 31, 2026, 2:45 AM (UTC-05:00), the pool elevation was 456.98 ft (datum NGVD29), provisional and subject to revision. See the trend chart above for the recent direction.
- Is Mountain Creek Lake full right now?
- The source reports it at 100% of conservation-pool capacity as of Aug 31, 2026, 2:45 AM (UTC-05:00).
- Where does this data come from?
- From USGS site 08050050 · USACE SWF/GPET2, 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.