Martin Lake: 85.1% full as of 2026-08-28
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 | 2026-08-28 | 85.1 | 303.62 | 64,451 | 64,451 | 75,726 | 4,521 |
| 1 day prior | 2026-08-27 | 85.3 | 303.66 | 64,632 | 64,632 | 75,726 | 4,528 |
| 2 days prior | 2026-08-26 | 85.6 | 303.71 | 64,858 | 64,858 | 75,726 | 4,537 |
| 1 week prior | 2026-08-21 | 86.7 | 303.88 | 65,632 | 65,632 | 75,726 | 4,568 |
| 1 month prior | 2026-07-28 | 92.9 | 304.90 | 70,386 | 70,386 | 75,726 | 4,754 |
| 3 months prior | 2026-05-28 | 95.5 | 305.30 | 72,303 | 72,303 | 75,726 | 4,827 |
| 6 months prior | 2026-02-28 | 88.5 | 304.18 | 67,011 | 67,011 | 75,726 | 4,623 |
| 1 year prior | 2025-08-28 | 93.5 | 304.98 | 70,768 | 70,768 | 75,726 | 4,769 |
*
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 | 2026-08-28 23:30 | 303.62 | 306.00 | -2.38 |
| 1 hour prior | 2026-08-28 22:30 | 303.61 | 306.00 | -2.39 |
| 2 hours prior | 2026-08-28 21:30 | 303.60 | 306.00 | -2.40 |
| 6 hours prior | 2026-08-28 17:30 | 303.61 | 306.00 | -2.39 |
| 12 hours prior | 2026-08-28 11:30 | 303.60 | 306.00 | -2.40 |
| 24 hours prior | 2026-08-27 23:30 | 303.64 | 306.00 | -2.36 |
| 48 hours prior | 2026-08-26 23:30 | 303.68 | 306.00 | -2.32 |
*
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
