Lake Marble Falls: 97.7% full as of 2026-10-09
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 | 2026-10-09 | 97.7 | 736.71 | 7,420 | 7,420 | 7,597 | 608 |
| Yesterday | 2026-10-08 | 96.9 | 736.61 | 7,360 | 7,360 | 7,597 | 606 |
| 2 days ago | 2026-10-07 | 97.7 | 736.71 | 7,420 | 7,420 | 7,597 | 608 |
| 1 week ago | 2026-10-02 | 94.1 | 736.26 | 7,149 | 7,149 | 7,597 | 599 |
| 1 month ago | 2026-09-09 | 95.8 | 736.48 | 7,281 | 7,281 | 7,597 | 603 |
| 3 months ago | 2026-07-09 | 94.7 | 736.34 | 7,197 | 7,197 | 7,597 | 600 |
| 6 months ago | 2026-04-09 | 94.3 | 736.29 | 7,167 | 7,167 | 7,597 | 599 |
| 1 year ago | 2025-10-09 | 95.3 | 736.41 | 7,239 | 7,239 | 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 | 2026-10-09 04:30 | 736.71 | 737.00 | -0.29 |
| 1 hour prior | 2026-10-09 03:30 | 736.71 | 737.00 | -0.29 |
| 2 hours prior | 2026-10-09 02:30 | 736.71 | 737.00 | -0.29 |
| 6 hours prior | 2026-10-08 22:30 | 736.65 | 737.00 | -0.35 |
| 12 hours prior | 2026-10-08 16:30 | 736.64 | 737.00 | -0.36 |
| 24 hours prior | 2026-10-08 04:30 | 736.66 | 737.00 | -0.34 |
| 48 hours prior | 2026-10-07 04:30 | 736.89 | 737.00 | -0.11 |
*
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
