Notes

2025-09-23: ALERT - The instantaneous data for Elephant Butte is currently unavailable. As a result, we are unable to display updated daily storage data for the reservoir. Updated daily storage data will be available as soon as the hourly data from Bureau of Reclamation is back online.

Elephant Butte Lake: 1.4% full as of 2026-09-07

Elephant Butte Lake (located in New Mexico) is governed by the Rio Grande Compact. The Rio Grande Compact is an interstate compact signed in 1938 between the states of Colorado, New Mexico and Texas and approved by the U.S. Congress, to equitably apportion the waters of the Rio Grande Basin. Water from the lake supplies irrigation water as well as a portion of El Paso's supply when available.

Historical Data

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Today 2026-09-07 1.4 4,275.57 27,736 27,736 1,960,900 2,295
Yesterday 2026-09-06 1.4 4,275.57 27,736 27,736 1,960,900 2,295
2 days ago 2026-09-05 - n.a. - - n.a. - - n.a. - - n.a. - - n.a. - - n.a. -
1 week ago 2026-08-31 1.4 4,275.49 27,552 27,552 1,960,900 2,290
1 month ago 2026-08-07 1.4 4,275.26 27,027 27,027 1,960,900 2,275
3 months ago 2026-06-07 8.7 4,309.04 171,157 171,157 1,960,900 6,983
6 months ago 2026-03-07 12.2 4,318.12 241,766 241,766 1,985,900 8,630
1 year ago 2025-09-07 3.4 4,289.25 66,436 66,436 1,960,900 3,667
*

Percent Full is based on Conservation Storage and Conservation Capacity and doesn't account for storage in flood pool.

**

   Values above, including today's are averaged conditions. For near real-time instantaneous water level, see table below or the interactive map viewer.

Most Recent Instantaneous Water Level

Date/time Water Level
(ft)
Conservation Pool Elevation
(ft)
Height Above Conservation Pool
(ft)
Most recent 2026-09-07 05:00 4,275.58 4,405.59 -130.01 below flood pool
1 hour prior 2026-09-07 04:00 - n.a. - - n.a. - - n.a. - into flood pool
2 hours prior 2026-09-07 03:00 - n.a. - - n.a. - - n.a. - into flood pool
6 hours prior 2026-09-06 23:00 - n.a. - - n.a. - - n.a. - into flood pool
12 hours prior 2026-09-06 17:00 - n.a. - - n.a. - - n.a. - into flood pool
24 hours prior 2026-09-06 05:00 - n.a. - - n.a. - - n.a. - into flood pool
48 hours prior 2026-09-05 05:00 - n.a. - - n.a. - - n.a. - into flood pool
*

Data is provisional and subject to revision.

Additional Information

Vertical datum NGVD29 -43.3
Dead pool elevation 4,231.50 ft above NGVD29 -43.3
Emergency spillway crest elevation 4,414.00 ft above NGVD29 -43.3
Flood pool elevation 4,407.00 ft above NGVD29 -43.3
Maximum design elevation 4,415.00 ft above NGVD29 -43.3
Top of dam elevation 4,414.00 ft above NGVD29 -43.3
Conservation pool elevation
(Seasonal: April 1 to September 30)
4,405.59 ft above NGVD29 -43.3
Conservation pool elevation
(Seasonal: October 1 to March 31)
4,406.30 ft above NGVD29 -43.3
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2019-11-01 (source: USBR)
Data Source USBR:EBDN5

Lake Location