Martin Lake: 89.5% full as of 2026-08-11
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 | 2026-08-11 | 89.5 | 304.34 | 67,753 | 67,753 | 75,726 | 4,652 |
| Yesterday | 2026-08-10 | 89.7 | 304.38 | 67,939 | 67,939 | 75,726 | 4,659 |
| 2 days ago | 2026-08-09 | 89.9 | 304.41 | 68,079 | 68,079 | 75,726 | 4,665 |
| 1 week ago | 2026-08-04 | 91.1 | 304.60 | 68,968 | 68,968 | 75,726 | 4,699 |
| 1 month ago | 2026-07-11 | 95.1 | 305.24 | 72,014 | 72,014 | 75,726 | 4,816 |
| 3 months ago | 2026-05-11 | 95.4 | 305.29 | 72,254 | 72,254 | 75,726 | 4,825 |
| 6 months ago | 2026-02-11 | 87.7 | 304.05 | 66,412 | 66,412 | 75,726 | 4,599 |
| 1 year ago | 2025-08-11 | 96.5 | 305.46 | 73,078 | 73,078 | 75,726 | 4,856 |
*
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 | 2026-08-11 18:30 | 304.32 | 306.00 | -1.68 |
| 1 hour prior | 2026-08-11 17:30 | 304.32 | 306.00 | -1.68 |
| 2 hours prior | 2026-08-11 16:30 | 304.33 | 306.00 | -1.67 |
| 6 hours prior | 2026-08-11 12:30 | 304.33 | 306.00 | -1.67 |
| 12 hours prior | 2026-08-11 06:30 | 304.34 | 306.00 | -1.66 |
| 24 hours prior | 2026-08-10 18:30 | 304.39 | 306.00 | -1.61 |
| 48 hours prior | 2026-08-09 18:30 | 304.41 | 306.00 | -1.59 |
*
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
