Ray Roberts Lake: 95.2% full as of 2026-09-11
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 | 2026-09-11 | 95.2 | 631.15 | 750,784 | 750,461 | 788,167 | 27,517 |
| Yesterday | 2026-09-10 | 95.2 | 631.15 | 750,784 | 750,461 | 788,167 | 27,517 |
| 2 days ago | 2026-09-09 | 95.3 | 631.17 | 751,335 | 751,012 | 788,167 | 27,529 |
| 1 week ago | 2026-09-04 | 95.7 | 631.29 | 754,642 | 754,319 | 788,167 | 27,599 |
| 1 month ago | 2026-08-11 | 98.0 | 631.94 | 772,710 | 772,387 | 788,167 | 27,995 |
| 3 months ago | 2026-06-11 | 100.0 | 633.64 | 821,247 | 788,167 | 788,167 | - n.a. - |
| 6 months ago | 2026-03-11 | 100.0 | 633.02 | 803,326 | 788,167 | 788,167 | - n.a. - |
| 1 year ago | 2025-09-11 | 96.5 | 631.53 | 761,283 | 760,960 | 788,167 | 27,742 |
*
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 | 2026-09-11 22:15 | 631.09 | 632.50 | -1.41 |
| 1 hour prior | 2026-09-11 21:15 | 631.12 | 632.50 | -1.38 |
| 2 hours prior | 2026-09-11 20:15 | 631.09 | 632.50 | -1.41 |
| 6 hours prior | 2026-09-11 16:15 | 631.13 | 632.50 | -1.37 |
| 12 hours prior | 2026-09-11 10:15 | 631.13 | 632.50 | -1.37 |
| 24 hours prior | 2026-09-10 22:15 | 631.14 | 632.50 | -1.36 |
| 48 hours prior | 2026-09-09 22:15 | 631.16 | 632.50 | -1.34 |
*
Data is provisional and subject to revision.
Additional Information
| Impoundment date | 1987-01-01 |
| Vertical datum | NGVD29 |
| Dead pool elevation | 551.00 ft above NGVD29 |
| Service spillway crest elevation | 645.50 ft above NGVD29 |
| Emergency spillway crest elevation | 645.50 ft above NGVD29 |
| Flood pool elevation | 640.50 ft above NGVD29 |
| Maximum design elevation | 658.80 ft above NGVD29 |
| Top of dam elevation | 665.00 ft above NGVD29 |
| Conservation pool elevation | 632.50 ft above NGVD29 |
| Data download (CSV) | period of record, last one year, last 30 days |
Elevation-Area-Capacity Curves
2008-10-01 (source: TWDB)
: GIS Data
|
|
| Data Source | USGS:08051100 |
| USGS Monitoring Location | USGS:08051100 |
Lake Location
