Lake Coleman: 77.6% full as of 2026-10-22
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 | 2026-10-22 | 77.6 | 1,712.56 | 29,562 | 29,544 | 38,075 | 1,617 |
| 1 day prior | 2026-10-21 | 77.6 | 1,712.57 | 29,578 | 29,560 | 38,075 | 1,617 |
| 2 days prior | 2026-10-20 | 77.7 | 1,712.58 | 29,594 | 29,576 | 38,075 | 1,618 |
| 1 week prior | 2026-10-15 | 77.6 | 1,712.55 | 29,546 | 29,528 | 38,075 | 1,616 |
| 1 month prior | 2026-09-22 | 78.5 | 1,712.78 | 29,919 | 29,901 | 38,075 | 1,641 |
| 3 months prior | 2026-07-22 | 85.5 | 1,714.37 | 32,581 | 32,563 | 38,075 | 1,704 |
| 6 months prior | 2026-04-22 | 87.7 | 1,714.86 | 33,421 | 33,403 | 38,075 | 1,730 |
| 1 year prior | 2025-10-22 | 87.9 | 1,714.90 | 33,490 | 33,472 | 38,075 | 1,731 |
*
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 | 2026-10-22 23:30 | 1,712.55 | 1,717.50 | -4.95 |
| 1 hour prior | 2026-10-22 22:30 | 1,712.56 | 1,717.50 | -4.94 |
| 2 hours prior | 2026-10-22 21:30 | 1,712.56 | 1,717.50 | -4.94 |
| 6 hours prior | 2026-10-22 17:30 | 1,712.56 | 1,717.50 | -4.94 |
| 12 hours prior | 2026-10-22 11:30 | 1,712.56 | 1,717.50 | -4.94 |
| 24 hours prior | 2026-10-21 23:30 | 1,712.57 | 1,717.50 | -4.93 |
| 48 hours prior | 2026-10-20 23:30 | 1,712.58 | 1,717.50 | -4.92 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1966-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 1,662.50 ft above NGVD29 |
| Service spillway crest elevation | 1,717.50 ft above NGVD29 |
| Emergency spillway crest elevation | 1,726.00 ft above NGVD29 |
| Top of dam elevation | 1,740.00 ft above NGVD29 |
| Conservation pool elevation | 1,717.50 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
2006-08-01 (source: TWDB)
: GIS Data
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|
| Data Source | USGS:08140770 |
| USGS Monitoring Location | USGS:08140770 |
Lake Location
