Martin Lake: 89.2% full as of 2026-08-12
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 | 2026-08-12 | 89.2 | 304.29 | 67,521 | 67,521 | 75,726 | 4,643 |
| 1 day prior | 2026-08-11 | 89.5 | 304.34 | 67,753 | 67,753 | 75,726 | 4,652 |
| 2 days prior | 2026-08-10 | 89.7 | 304.38 | 67,939 | 67,939 | 75,726 | 4,659 |
| 1 week prior | 2026-08-05 | 90.9 | 304.57 | 68,828 | 68,828 | 75,726 | 4,694 |
| 1 month prior | 2026-07-12 | 95.1 | 305.24 | 72,014 | 72,014 | 75,726 | 4,816 |
| 3 months prior | 2026-05-12 | 95.3 | 305.27 | 72,158 | 72,158 | 75,726 | 4,821 |
| 6 months prior | 2026-02-12 | 87.6 | 304.04 | 66,366 | 66,366 | 75,726 | 4,597 |
| 1 year prior | 2025-08-12 | 96.4 | 305.44 | 72,980 | 72,980 | 75,726 | 4,852 |
*
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 | 2026-08-13 05:30 | 304.26 | 306.00 | -1.74 |
| 1 hour prior | 2026-08-13 04:30 | 304.26 | 306.00 | -1.74 |
| 2 hours prior | 2026-08-13 03:30 | 304.27 | 306.00 | -1.73 |
| 6 hours prior | 2026-08-12 23:30 | 304.28 | 306.00 | -1.72 |
| 12 hours prior | 2026-08-12 17:30 | 304.29 | 306.00 | -1.71 |
| 24 hours prior | 2026-08-12 05:30 | 304.31 | 306.00 | -1.69 |
| 48 hours prior | 2026-08-11 05:30 | 304.34 | 306.00 | -1.66 |
*
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
