Martin Lake: 85.9% full as of 2026-08-25
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Most recent | 2026-08-25 | 85.9 | 303.75 | 65,040 | 65,040 | 75,726 | 4,545 |
| 1 day prior | 2026-08-24 | 86.1 | 303.79 | 65,222 | 65,222 | 75,726 | 4,552 |
| 2 days prior | 2026-08-23 | 86.3 | 303.82 | 65,359 | 65,359 | 75,726 | 4,557 |
| 1 week prior | 2026-08-18 | 87.5 | 304.02 | 66,274 | 66,274 | 75,726 | 4,594 |
| 1 month prior | 2026-07-25 | 93.8 | 305.03 | 71,006 | 71,006 | 75,726 | 4,778 |
| 3 months prior | 2026-05-25 | 95.6 | 305.32 | 72,399 | 72,399 | 75,726 | 4,830 |
| 6 months prior | 2026-02-25 | 88.7 | 304.21 | 67,150 | 67,150 | 75,726 | 4,628 |
| 1 year prior | 2025-08-25 | 94.1 | 305.08 | 71,245 | 71,245 | 75,726 | 4,787 |
*
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 | 2026-08-25 22:30 | 303.73 | 306.00 | -2.27 |
| 1 hour prior | 2026-08-25 21:30 | 303.73 | 306.00 | -2.27 |
| 2 hours prior | 2026-08-25 20:30 | 303.74 | 306.00 | -2.26 |
| 6 hours prior | 2026-08-25 16:30 | 303.74 | 306.00 | -2.26 |
| 12 hours prior | 2026-08-25 10:30 | 303.75 | 306.00 | -2.25 |
| 24 hours prior | 2026-08-24 22:30 | 303.77 | 306.00 | -2.23 |
| 48 hours prior | 2026-08-23 22:30 | 303.80 | 306.00 | -2.20 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1974-01-01 |
| Vertical datum | NGVD29 |
| Service spillway crest elevation | 294.00 ft above NGVD29 |
| Emergency spillway crest elevation | 312.00 ft above NGVD29 |
| Top of dam elevation | 321.50 ft above NGVD29 |
| Conservation pool elevation | 306.00 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
1999-05-01 (source: TWDB)
: GIS Data
2014-08-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08022060 |
| USGS Monitoring Location | USGS:08022060 |
Lake Location
