Lake Marble Falls: 96.5% full as of 2026-09-13

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 2026-09-13 96.5 736.56 7,329 7,329 7,597 605
Yesterday 2026-09-12 95.9 736.49 7,287 7,287 7,597 603
2 days ago 2026-09-11 96.3 736.54 7,317 7,317 7,597 604
1 week ago 2026-09-06 95.8 736.47 7,275 7,275 7,597 603
1 month ago 2026-08-13 94.5 736.31 7,179 7,179 7,597 600
3 months ago 2026-06-13 94.4 736.30 7,173 7,173 7,597 600
6 months ago 2026-03-13 95.1 736.39 7,227 7,227 7,597 601
1 year ago 2025-09-13 94.3 736.29 7,167 7,167 7,597 599
*

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 2026-09-13 19:30 736.19 737.00 -0.81
1 hour prior 2026-09-13 18:30 736.51 737.00 -0.49
2 hours prior 2026-09-13 17:30 736.54 737.00 -0.46
6 hours prior 2026-09-13 13:30 736.54 737.00 -0.46
12 hours prior 2026-09-13 07:30 736.56 737.00 -0.44
24 hours prior 2026-09-12 19:30 736.19 737.00 -0.81
48 hours prior 2026-09-11 19:30 736.24 737.00 -0.76
*

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