Lake Travis: 90.9% full as of 2026-09-21

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 2026-09-21 90.9 675.60 1,015,600 998,568 1,098,044 17,806
Yesterday 2026-09-20 91.1 675.71 1,017,560 1,000,528 1,098,044 17,831
2 days ago 2026-09-19 91.4 675.86 1,020,237 1,003,205 1,098,044 17,865
1 week ago 2026-09-14 92.5 676.56 1,032,798 1,015,766 1,098,044 18,026
1 month ago 2026-08-21 97.5 679.52 1,087,151 1,070,119 1,098,044 18,696
3 months ago 2026-06-21 85.9 672.45 960,760 943,728 1,098,044 17,010
6 months ago 2026-03-21 75.3 665.20 843,624 826,592 1,098,044 15,310
1 year ago 2025-09-21 85.6 672.21 956,685 939,653 1,098,044 16,952
*

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 2026-09-21 04:25 675.59 681.00 -5.41 below flood pool
1 hour prior 2026-09-21 03:25 675.62 681.00 -5.38 below flood pool
2 hours prior 2026-09-21 02:25 675.61 681.00 -5.39 below flood pool
6 hours prior 2026-09-20 22:25 675.62 681.00 -5.38 below flood pool
12 hours prior 2026-09-20 16:25 675.67 681.00 -5.33 below flood pool
24 hours prior 2026-09-20 04:25 675.75 681.00 -5.25 below flood pool
48 hours prior 2026-09-19 04:25 675.93 681.00 -5.07 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1942-01-01
Vertical datum NAVD88 +0.6
Dead pool elevation 535.75 ft above NAVD88 +0.6
Emergency spillway crest elevation 714.00 ft above NAVD88 +0.6
Flood pool elevation 721.40 ft above NAVD88 +0.6
Maximum design elevation 745.00 ft above NAVD88 +0.6
Top of dam elevation 750.00 ft above NAVD88 +0.6
Conservation pool elevation 681.00 ft above NAVD88 +0.6
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2008-07-01 (source: TWDB) : GIS Data
2019-11-01 (source: TWDB) : GIS Data
Data Source LCRA:3963

Lake Location