Lake Travis: 41.7% full as of 2025-04-23

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 2025-04-23 41.7 635.56 474,700 457,668 1,098,044 9,966
1 day prior 2025-04-22 41.6 635.49 474,002 456,970 1,098,044 9,956
2 days prior 2025-04-21 41.6 635.50 474,102 457,070 1,098,044 9,958
1 week prior 2025-04-16 41.8 635.64 475,497 458,465 1,098,044 9,977
1 month prior 2025-03-23 42.4 636.34 482,517 465,485 1,098,044 10,078
3 months prior 2025-01-23 43.4 637.39 493,180 476,148 1,098,044 10,232
6 months prior 2024-10-23 45.0 639.09 510,793 493,761 1,098,044 10,489
1 year prior 2024-04-23 37.2 630.45 425,643 408,611 1,098,044 9,240
*

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 2025-04-23 22:00 635.56 681.00 -45.44 below flood pool
1 hour prior 2025-04-23 21:00 - n.a. - - n.a. - - n.a. - into flood pool
2 hours prior 2025-04-23 20:00 - n.a. - - n.a. - - n.a. - into flood pool
6 hours prior 2025-04-23 16:00 635.57 681.00 -45.43 below flood pool
12 hours prior 2025-04-23 10:00 - n.a. - - n.a. - - n.a. - into flood pool
24 hours prior 2025-04-22 22:00 - n.a. - - n.a. - - n.a. - into flood pool
48 hours prior 2025-04-21 22:00 - n.a. - - n.a. - - n.a. - into 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