Ray Roberts Lake: 97.0% full as of 2026-08-22
Historical Data
| Date | Percent Full |
Mean Water Level (ft) |
Reservoir Storage (acre-ft) |
Conservation Storage (acre-ft) |
Conservation Capacity (acre-ft) |
Surface Area (acres) |
|
|---|---|---|---|---|---|---|---|
| Today | 2026-08-22 | 97.0 | 631.67 | 765,173 | 764,850 | 788,167 | 27,827 |
| Yesterday | 2026-08-21 | 97.1 | 631.69 | 765,730 | 765,407 | 788,167 | 27,840 |
| 2 days ago | 2026-08-20 | 97.1 | 631.70 | 766,008 | 765,685 | 788,167 | 27,846 |
| 1 week ago | 2026-08-15 | 97.5 | 631.79 | 768,516 | 768,193 | 788,167 | 27,901 |
| 1 month ago | 2026-07-22 | 100.0 | 632.57 | 790,477 | 788,167 | 788,167 | - n.a. - |
| 3 months ago | 2026-05-22 | 100.0 | 632.66 | 793,036 | 788,167 | 788,167 | - n.a. - |
| 6 months ago | 2026-02-22 | 99.7 | 632.42 | 786,223 | 785,900 | 788,167 | 28,372 |
| 1 year ago | 2025-08-22 | 97.6 | 631.83 | 769,633 | 769,310 | 788,167 | 27,926 |
*
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 | 2026-08-22 16:15 | 631.64 | 632.50 | -0.86 |
| 1 hour prior | 2026-08-22 15:15 | 631.65 | 632.50 | -0.85 |
| 2 hours prior | 2026-08-22 14:15 | 631.66 | 632.50 | -0.84 |
| 6 hours prior | 2026-08-22 10:15 | 631.65 | 632.50 | -0.85 |
| 12 hours prior | 2026-08-22 04:15 | 631.68 | 632.50 | -0.82 |
| 24 hours prior | 2026-08-21 16:15 | 631.67 | 632.50 | -0.83 |
| 48 hours prior | 2026-08-20 16:15 | 631.69 | 632.50 | -0.81 |
*
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
