Notes

2023-10-30: The vertical datum of the USGS gauge for Lake Stamford has been updated to NAV88.

Lake Stamford: 73.2% full as of 2026-05-08

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

Historical Data

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Most recent 2026-05-08 73.2 1,414.03 37,771 37,768 51,570 4,075
1 day prior 2026-05-07 73.3 1,414.04 37,812 37,809 51,570 4,078
2 days prior 2026-05-06 73.4 1,414.05 37,853 37,850 51,570 4,081
1 week prior 2026-05-01 74.3 1,414.16 38,302 38,299 51,570 4,118
1 month prior 2026-04-08 77.0 1,414.50 39,714 39,711 51,570 4,233
3 months prior 2026-02-08 82.1 1,415.11 42,345 42,342 51,570 4,442
6 months prior 2025-11-08 87.8 1,415.75 45,277 45,274 51,570 4,666
1 year prior 2025-05-08 100.0 1,418.15 57,500 51,570 51,570 5,510
*

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 2026-05-08 21:30 1,414.01 1,416.80 -2.79
1 hour prior 2026-05-08 20:30 1,414.01 1,416.80 -2.79
2 hours prior 2026-05-08 19:30 1,414.03 1,416.80 -2.77
6 hours prior 2026-05-08 15:30 1,414.04 1,416.80 -2.76
12 hours prior 2026-05-08 09:30 1,414.03 1,416.80 -2.77
24 hours prior 2026-05-07 21:30 1,414.03 1,416.80 -2.77
48 hours prior 2026-05-06 21:30 1,414.04 1,416.80 -2.76
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1953-01-01
Vertical datum NGVD29 (NAVD88 + 0.24)
Dead pool elevation 1,382.80 ft above NGVD29
Service spillway crest elevation 1,416.80 ft above NGVD29
Emergency spillway crest elevation 1,425.80 ft above NGVD29
Top of dam elevation 1,436.80 ft above NGVD29
Conservation pool elevation 1,416.80 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1999-08-01 (source: TWDB) : GIS Data
Data Source USGS:08084500

Lake Location