Ray Roberts Lake: 97.4% full as of 2026-08-17
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 | 2026-08-17 | 97.4 | 631.76 | 767,680 | 767,357 | 788,167 | 27,883 |
| Yesterday | 2026-08-16 | 97.4 | 631.77 | 767,959 | 767,636 | 788,167 | 27,889 |
| 2 days ago | 2026-08-15 | 97.5 | 631.79 | 768,516 | 768,193 | 788,167 | 27,901 |
| 1 week ago | 2026-08-10 | 98.1 | 631.97 | 773,549 | 773,226 | 788,167 | 28,015 |
| 1 month ago | 2026-07-17 | 100.0 | 632.65 | 792,752 | 788,167 | 788,167 | - n.a. - |
| 3 months ago | 2026-05-17 | 99.8 | 632.45 | 787,073 | 786,750 | 788,167 | 28,475 |
| 6 months ago | 2026-02-17 | 99.6 | 632.39 | 785,373 | 785,050 | 788,167 | 28,296 |
| 1 year ago | 2025-08-17 | 97.8 | 631.88 | 771,031 | 770,708 | 788,167 | 27,958 |
*
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 | 2026-08-17 12:15 | 631.75 | 632.50 | -0.75 |
| 1 hour prior | 2026-08-17 11:15 | 631.74 | 632.50 | -0.76 |
| 2 hours prior | 2026-08-17 10:15 | 631.75 | 632.50 | -0.75 |
| 6 hours prior | 2026-08-17 06:15 | 631.76 | 632.50 | -0.74 |
| 12 hours prior | 2026-08-17 00:15 | 631.76 | 632.50 | -0.74 |
| 24 hours prior | 2026-08-16 12:15 | 631.79 | 632.50 | -0.71 |
| 48 hours prior | 2026-08-15 12:15 | 631.78 | 632.50 | -0.72 |
*
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
