Tat Momolikat Dam water level — Arizona
Tat Momolikat Dam in Arizona was last measured at 1,494.48 ft (datum NGVD29), as of Aug 31, 2026, 8:00 AM (UTC+00:00) (USACE CWMS Data). Over its recent trend window the level has been steady (−0.0 ft).
- % of conservation pool full
- Not reported
- Storage
- 1,985 acre-ft
- Recent trend
- →Steady
−0.0 ft over the trend window
Recent trend
Readings this station published between Jun 2, 2026 and Jun 23, 2026 — a 20-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: USACE SPL/Tat Momolikat, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00). Official page for this lake →
The dam behind Tat Momolikat Dam
Tat Momolikat Dam is held back by Tat Momolikot (also recorded as Lake St Clair) , an earthfill embankment, holding the pool back by sheer mass and an impervious core rather than by the strength of concrete , standing 85 ft high and running 12,500 ft along its crest , built across Santa Rosa Wash in Pinal County , near Stanfield . It was completed in 1974 , and is owned by BIA (a federal owner) , to a design credited to USACE.
Its recorded primary purpose is flood risk reduction — the pool is drawn down between storms so there is empty space waiting for the next flood, which is why this level can fall in dry weather and climb sharply after rain . It also serves flood risk reduction;irrigation.
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 1,012 ft wide. Its outlet works use slide (sluice gate).
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 fair: sound under normal loading, though a rare or extreme event could expose a deficiency. That assessment is dated 02/19/2020.
At its normal pool the reservoir covers about 65 acres. NID records a maximum storage of 482,222 acre-ft against a normal storage of 322 acre-ft. Its maximum discharge capacity is 115,100 cubic feet per second.
Dam facts: National Inventory of Dams record AZ10008 , filed by Bureau of Indian Affairs — U.S. Army Corps of Engineers, public domain. Water levels above come from USACE CWMS Data and are a separate source. (How this dam was matched to this gauge →)
How Tat Momolikat Dam compares nearby
All 2 nearby lakes with a current trend are also steady, suggesting a regional pattern rather than an operation specific to this dam.
Nearby lakes
The six nearest published lakes by centroid distance (great-circle) — cross-state neighbors included.
| Lake | State | Level | Distance |
|---|---|---|---|
| Whitlow Ranch Dam | AZ | 2,065.11 ft | 94 km |
| Painted Rock Dam | AZ | 535.02 ft | 112 km |
| Bartlett Reservoir | AZ | — | 133 km |
| San Carlos Reservoir | AZ | — | 143 km |
| Horseshoe Reservoir | AZ | — | 150 km |
| Cragin Dam Reservoir | AZ | — | 223 km |
Frequently asked questions
- What is the current water level of Tat Momolikat Dam?
- As of Aug 31, 2026, 8:00 AM (UTC+00:00), the pool elevation was 1,494.48 ft (datum NGVD29). See the trend chart above for the recent direction.
- Is Tat Momolikat Dam 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 USACE SPL/Tat Momolikat, retrieved Aug 31, 2026, 8:24 AM (UTC+00:00).
More in Arizona
See every lake tracked in Arizona, or read the methodology behind these figures.