Notes

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

Lake Stamford: 100.0% full as of 2025-05-11

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)
Today 2025-05-11 100.0 1,418.04 56,897 51,570 51,570 5,473
Yesterday 2025-05-10 100.0 1,418.08 57,116 51,570 51,570 5,487
2 days ago 2025-05-09 100.0 1,418.12 57,335 51,570 51,570 5,500
1 week ago 2025-05-04 100.0 1,418.17 57,611 51,570 51,570 5,517
1 month ago 2025-04-11 90.4 1,416.04 46,648 46,645 51,570 4,769
3 months ago 2025-02-11 91.0 1,416.10 46,935 46,932 51,570 4,790
6 months ago 2024-11-11 95.8 1,416.61 49,417 49,414 51,570 4,971
1 year ago 2024-05-11 97.2 1,416.75 50,112 50,109 51,570 5,021
*

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 2025-05-11 12:30 1,418.04 1,416.80 1.24
1 hour prior 2025-05-11 11:30 1,418.03 1,416.80 1.23
2 hours prior 2025-05-11 10:30 1,418.04 1,416.80 1.24
6 hours prior 2025-05-11 06:30 1,418.04 1,416.80 1.24
12 hours prior 2025-05-11 00:30 1,418.05 1,416.80 1.25
24 hours prior 2025-05-10 12:30 1,418.08 1,416.80 1.28
48 hours prior 2025-05-09 12:30 1,418.12 1,416.80 1.32
*

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