Lake Marble Falls: 96.4% full as of 2026-09-10

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 2026-09-10 96.4 736.55 7,323 7,323 7,597 605
Yesterday 2026-09-09 95.8 736.48 7,281 7,281 7,597 603
2 days ago 2026-09-08 95.4 736.43 7,251 7,251 7,597 602
1 week ago 2026-09-03 95.2 736.40 7,233 7,233 7,597 602
1 month ago 2026-08-10 94.1 736.26 7,149 7,149 7,597 599
3 months ago 2026-06-10 95.0 736.37 7,215 7,215 7,597 601
6 months ago 2026-03-10 94.7 736.33 7,191 7,191 7,597 600
1 year ago 2025-09-10 95.1 736.39 7,227 7,227 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 2026-09-10 16:30 736.50 737.00 -0.50
1 hour prior 2026-09-10 15:30 736.50 737.00 -0.50
2 hours prior 2026-09-10 14:30 736.51 737.00 -0.49
6 hours prior 2026-09-10 10:30 736.53 737.00 -0.47
12 hours prior 2026-09-10 04:30 736.55 737.00 -0.45
24 hours prior 2026-09-09 16:30 736.46 737.00 -0.54
48 hours prior 2026-09-08 16:30 736.41 737.00 -0.59
*

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