Lake Buchanan: 60.0% full as of 2025-01-22

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 2025-01-22 60.0 1,002.66 533,262 519,600 866,694 16,870
1 day prior 2025-01-21 60.0 1,002.70 533,937 520,275 866,694 16,888
2 days prior 2025-01-20 60.1 1,002.73 534,444 520,782 866,694 16,901
1 week prior 2025-01-15 60.3 1,002.84 536,306 522,644 866,694 16,951
1 month prior 2024-12-22 62.1 1,003.76 552,079 538,417 866,694 17,325
3 months prior 2024-10-22 66.7 1,004.31 561,663 548,001 822,207 17,521
6 months prior 2024-07-22 72.9 1,007.18 613,441 599,779 822,207 18,596
1 year prior 2024-01-22 45.2 994.29 405,465 391,803 866,694 14,033
*

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 2025-01-23 03:30 1,002.67 1,020.00 -17.33
1 hour prior 2025-01-23 02:30 - n.a. - - n.a. - - n.a. -
2 hours prior 2025-01-23 01:30 1,002.67 1,020.00 -17.33
6 hours prior 2025-01-22 21:30 1,002.67 1,020.00 -17.33
12 hours prior 2025-01-22 15:30 1,002.67 1,020.00 -17.33
24 hours prior 2025-01-22 03:30 - n.a. - - n.a. - - n.a. -
48 hours prior 2025-01-21 03:30 - n.a. - - n.a. - - n.a. -
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1938-01-01
Vertical datum NAVD88 +0.26
Dead pool elevation 937.00 ft above NAVD88 +0.26
Service spillway crest elevation 1,020.49 ft above NAVD88 +0.26
Top of flood gate elevation 1,021.50 ft above NAVD88 +0.26
Emergency spillway crest elevation 1,020.49 ft above NAVD88 +0.26
Maximum design elevation 1,023.99 ft above NAVD88 +0.26
Top of dam elevation 1,025.50 ft above NAVD88 +0.26
Conservation pool elevation
End date: 1990-03-08 		1,020.50 ft above NAVD88 +0.26
Conservation pool elevation
Start date to end date: 1990-03-08 to 1990-05-01 		1,020.00 ft above NAVD88 +0.26
Conservation pool elevation
Start date: 1990-05-01 (Seasonal: May 1 to November 1) 		1,018.00 ft above NAVD88 +0.26
Conservation pool elevation
Start date: 1990-05-01 (Seasonal: November 1 to May 1) 		1,020.00 ft above NAVD88 +0.26
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2006-03-01 (source: TWDB) : GIS Data
2019-07-01 (source: TWDB) : GIS Data
Data Source LCRA:1995

Lake Location