Ray Roberts Lake: 99.1% full as of 2026-08-02
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 | 2026-08-02 | 99.1 | 632.25 | 781,419 | 781,096 | 788,167 | 28,198 |
| Yesterday | 2026-08-01 | 99.2 | 632.27 | 781,983 | 781,660 | 788,167 | 28,212 |
| 2 days ago | 2026-07-31 | 99.2 | 632.29 | 782,547 | 782,224 | 788,167 | 28,225 |
| 1 week ago | 2026-07-26 | 99.7 | 632.43 | 786,506 | 786,183 | 788,167 | 28,406 |
| 1 month ago | 2026-07-02 | 100.0 | 633.16 | 807,351 | 788,167 | 788,167 | - n.a. - |
| 3 months ago | 2026-05-02 | 100.0 | 632.54 | 789,625 | 788,167 | 788,167 | - n.a. - |
| 6 months ago | 2026-02-02 | 95.7 | 631.30 | 754,917 | 754,594 | 788,167 | 27,605 |
| 1 year ago | 2025-08-02 | 98.8 | 632.17 | 779,165 | 778,842 | 788,167 | 28,144 |
*
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 | 2026-08-02 05:15 | 632.24 | 632.50 | -0.26 |
| 1 hour prior | 2026-08-02 04:15 | 632.23 | 632.50 | -0.27 |
| 2 hours prior | 2026-08-02 03:15 | 632.27 | 632.50 | -0.23 |
| 6 hours prior | 2026-08-01 23:15 | 632.25 | 632.50 | -0.25 |
| 12 hours prior | 2026-08-01 17:15 | 632.27 | 632.50 | -0.23 |
| 24 hours prior | 2026-08-01 05:15 | 632.31 | 632.50 | -0.19 |
| 48 hours prior | 2026-07-31 05:15 | 632.30 | 632.50 | -0.20 |
*
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
