Ray Roberts Lake: 94.2% full as of 2026-10-18
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 | 2026-10-18 | 94.2 | 630.86 | 742,829 | 742,506 | 788,167 | 27,349 |
| Yesterday | 2026-10-17 | 94.3 | 630.88 | 743,376 | 743,053 | 788,167 | 27,361 |
| 2 days ago | 2026-10-16 | 94.9 | 631.06 | 748,310 | 747,987 | 788,167 | 27,465 |
| 1 week ago | 2026-10-11 | 94.7 | 630.99 | 746,389 | 746,066 | 788,167 | 27,424 |
| 1 month ago | 2026-09-18 | 94.5 | 630.95 | 745,293 | 744,970 | 788,167 | 27,401 |
| 3 months ago | 2026-07-18 | 100.0 | 632.63 | 792,182 | 788,167 | 788,167 | - n.a. - |
| 6 months ago | 2026-04-18 | 100.0 | 632.89 | 799,600 | 788,167 | 788,167 | - n.a. - |
| 1 year ago | 2025-10-18 | 95.3 | 631.17 | 751,335 | 751,012 | 788,167 | 27,529 |
*
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 | 2026-10-18 17:15 | 630.84 | 632.50 | -1.66 |
| 1 hour prior | 2026-10-18 16:15 | 630.84 | 632.50 | -1.66 |
| 2 hours prior | 2026-10-18 15:15 | 630.83 | 632.50 | -1.67 |
| 6 hours prior | 2026-10-18 11:15 | 630.84 | 632.50 | -1.66 |
| 12 hours prior | 2026-10-18 05:15 | 630.85 | 632.50 | -1.65 |
| 24 hours prior | 2026-10-17 17:15 | 630.88 | 632.50 | -1.62 |
| 48 hours prior | 2026-10-16 17:15 | 630.97 | 632.50 | -1.53 |
*
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
