Lake Coleman: 78.2% full as of 2026-10-01
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 | 2026-10-01 | 78.2 | 1,712.71 | 29,805 | 29,787 | 38,075 | 1,626 |
| Yesterday | 2026-09-30 | 78.2 | 1,712.71 | 29,805 | 29,787 | 38,075 | 1,626 |
| 2 days ago | 2026-09-29 | 78.3 | 1,712.73 | 29,838 | 29,820 | 38,075 | 1,630 |
| 1 week ago | 2026-09-24 | 78.6 | 1,712.80 | 29,952 | 29,934 | 38,075 | 1,645 |
| 1 month ago | 2026-09-01 | 80.5 | 1,713.23 | 30,663 | 30,645 | 38,075 | 1,661 |
| 3 months ago | 2026-07-01 | 86.8 | 1,714.66 | 33,077 | 33,059 | 38,075 | 1,715 |
| 6 months ago | 2026-04-01 | 82.7 | 1,713.74 | 31,515 | 31,497 | 38,075 | 1,680 |
| 1 year ago | 2025-10-01 | 89.8 | 1,715.31 | 34,203 | 34,185 | 38,075 | 1,743 |
*
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 | 2026-10-01 09:30 | 1,712.72 | 1,717.50 | -4.78 |
| 1 hour prior | 2026-10-01 08:30 | 1,712.72 | 1,717.50 | -4.78 |
| 2 hours prior | 2026-10-01 07:30 | 1,712.72 | 1,717.50 | -4.78 |
| 6 hours prior | 2026-10-01 03:30 | 1,712.72 | 1,717.50 | -4.78 |
| 12 hours prior | 2026-09-30 21:30 | 1,712.70 | 1,717.50 | -4.80 |
| 24 hours prior | 2026-09-30 09:30 | 1,712.71 | 1,717.50 | -4.79 |
| 48 hours prior | 2026-09-29 09:30 | 1,712.73 | 1,717.50 | -4.77 |
*
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
