Lake Marble Falls: 96.4% full as of 2026-09-12

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 2026-09-12 96.4 736.55 7,323 7,323 7,597 605
Yesterday 2026-09-11 96.3 736.54 7,317 7,317 7,597 604
2 days ago 2026-09-10 96.2 736.52 7,305 7,305 7,597 604
1 week ago 2026-09-05 95.9 736.49 7,287 7,287 7,597 603
1 month ago 2026-08-12 94.3 736.28 7,161 7,161 7,597 599
3 months ago 2026-06-12 95.2 736.40 7,233 7,233 7,597 602
6 months ago 2026-03-12 95.8 736.48 7,281 7,281 7,597 603
1 year ago 2025-09-12 94.9 736.36 7,209 7,209 7,597 601
*

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 2026-09-12 15:30 736.52 737.00 -0.48
1 hour prior 2026-09-12 14:30 736.51 737.00 -0.49
2 hours prior 2026-09-12 13:30 736.55 737.00 -0.45
6 hours prior 2026-09-12 09:30 736.54 737.00 -0.46
12 hours prior 2026-09-12 03:30 736.56 737.00 -0.44
24 hours prior 2026-09-11 15:30 736.58 737.00 -0.42
48 hours prior 2026-09-10 15:30 736.50 737.00 -0.50
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1951-01-01
Vertical datum NAVD88 +0.69
Top of gate elevation 738.54 ft above NAVD88 +0.69
Top of dam elevation 761.50 ft above NAVD88 +0.69
Conservation pool elevation 737.00 ft above NAVD88 +0.69
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2007-04-01 (source: TWDB) : GIS Data
2020-02-01 (source: TWDB) : GIS Data
Data Source LCRA:2999

Lake Location