Lake Marble Falls: 96.8% full as of 2026-08-23
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 | 2026-08-23 | 96.8 | 736.60 | 7,353 | 7,353 | 7,597 | 606 |
| Yesterday | 2026-08-22 | 96.4 | 736.55 | 7,323 | 7,323 | 7,597 | 605 |
| 2 days ago | 2026-08-21 | 97.4 | 736.67 | 7,396 | 7,396 | 7,597 | 607 |
| 1 week ago | 2026-08-16 | 94.7 | 736.34 | 7,197 | 7,197 | 7,597 | 600 |
| 1 month ago | 2026-07-23 | 92.8 | 736.10 | 7,053 | 7,053 | 7,597 | 595 |
| 3 months ago | 2026-05-23 | 93.6 | 736.19 | 7,107 | 7,107 | 7,597 | 597 |
| 6 months ago | 2026-02-23 | 94.1 | 736.26 | 7,149 | 7,149 | 7,597 | 599 |
| 1 year ago | 2025-08-23 | 95.4 | 736.42 | 7,245 | 7,245 | 7,597 | 602 |
*
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 | 2026-08-23 11:30 | 736.58 | 737.00 | -0.42 |
| 1 hour prior | 2026-08-23 10:30 | 736.59 | 737.00 | -0.41 |
| 2 hours prior | 2026-08-23 09:30 | 736.58 | 737.00 | -0.42 |
| 6 hours prior | 2026-08-23 05:30 | 736.60 | 737.00 | -0.40 |
| 12 hours prior | 2026-08-22 23:30 | 736.63 | 737.00 | -0.37 |
| 24 hours prior | 2026-08-22 11:30 | 736.58 | 737.00 | -0.42 |
| 48 hours prior | 2026-08-21 11:30 | 736.71 | 737.00 | -0.29 |
*
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
