Martin Lake: 89.0% full as of 2026-08-13
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 | 2026-08-13 | 89.0 | 304.26 | 67,381 | 67,381 | 75,726 | 4,637 |
| Yesterday | 2026-08-12 | 89.2 | 304.29 | 67,521 | 67,521 | 75,726 | 4,643 |
| 2 days ago | 2026-08-11 | 89.5 | 304.34 | 67,753 | 67,753 | 75,726 | 4,652 |
| 1 week ago | 2026-08-06 | 90.6 | 304.53 | 68,640 | 68,640 | 75,726 | 4,687 |
| 1 month ago | 2026-07-13 | 95.5 | 305.30 | 72,303 | 72,303 | 75,726 | 4,827 |
| 3 months ago | 2026-05-13 | 95.2 | 305.25 | 72,062 | 72,062 | 75,726 | 4,818 |
| 6 months ago | 2026-02-13 | 87.6 | 304.04 | 66,366 | 66,366 | 75,726 | 4,597 |
| 1 year ago | 2025-08-13 | 96.2 | 305.41 | 72,835 | 72,835 | 75,726 | 4,847 |
*
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 14:30 | 304.24 | 306.00 | -1.76 |
| 1 hour prior | 2026-08-13 13:30 | 304.26 | 306.00 | -1.74 |
| 2 hours prior | 2026-08-13 12:30 | 304.25 | 306.00 | -1.75 |
| 6 hours prior | 2026-08-13 08:30 | 304.26 | 306.00 | -1.74 |
| 12 hours prior | 2026-08-13 02:30 | 304.28 | 306.00 | -1.72 |
| 24 hours prior | 2026-08-12 14:30 | 304.31 | 306.00 | -1.69 |
| 48 hours prior | 2026-08-11 14:30 | 304.32 | 306.00 | -1.68 |
*
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
