Martin Lake: 81.9% full as of 2026-09-14
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 | 2026-09-14 | 81.9 | 303.07 | 61,992 | 61,992 | 75,726 | 4,421 |
| 1 day prior | 2026-09-13 | 82.1 | 303.11 | 62,169 | 62,169 | 75,726 | 4,428 |
| 2 days prior | 2026-09-12 | 82.3 | 303.15 | 62,346 | 62,346 | 75,726 | 4,435 |
| 1 week prior | 2026-09-07 | 83.3 | 303.31 | 63,058 | 63,058 | 75,726 | 4,464 |
| 1 month prior | 2026-08-14 | 88.6 | 304.20 | 67,103 | 67,103 | 75,726 | 4,627 |
| 3 months prior | 2026-06-14 | 94.7 | 305.18 | 71,725 | 71,725 | 75,726 | 4,805 |
| 6 months prior | 2026-03-14 | 90.9 | 304.57 | 68,828 | 68,828 | 75,726 | 4,694 |
| 1 year prior | 2025-09-14 | 93.5 | 304.99 | 70,815 | 70,815 | 75,726 | 4,770 |
*
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 | 2026-09-14 23:30 | 303.05 | 306.00 | -2.95 |
| 1 hour prior | 2026-09-14 22:30 | 303.05 | 306.00 | -2.95 |
| 2 hours prior | 2026-09-14 21:30 | 303.07 | 306.00 | -2.93 |
| 6 hours prior | 2026-09-14 17:30 | 303.06 | 306.00 | -2.94 |
| 12 hours prior | 2026-09-14 11:30 | 303.06 | 306.00 | -2.94 |
| 24 hours prior | 2026-09-13 23:30 | 303.10 | 306.00 | -2.90 |
| 48 hours prior | 2026-09-12 23:30 | 303.12 | 306.00 | -2.88 |
*
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
