Ray Roberts Lake: 98.7% full as of 2021-09-23

The elevation-storage rating curve used to produce the storage hydrograph is made of two segments: (1) the segment up to the conservation pool top (below the red line) is based on measured data, and (2) the segment in the flood pool (above the red line) is an extrapolation from the first segment and shouldn't be relied upon for flood storage information.

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 2021-09-23 98.7 632.14 778,321 777,998 788,167 28,125
Yesterday 2021-09-22 98.8 632.16 778,884 778,561 788,167 28,138
2 days ago 2021-09-21 99.0 632.21 780,291 779,968 788,167 28,171
1 week ago 2021-09-16 99.3 632.31 783,111 782,788 788,167 28,239
1 month ago 2021-08-23 100.0 632.97 801,892 788,167 788,167 - n.a. -
3 months ago 2021-06-23 100.0 636.29 900,665 788,167 788,167 - n.a. -
6 months ago 2021-03-23 99.2 632.29 782,547 782,224 788,167 28,225
1 year ago 2020-09-23 99.9 632.47 787,640 787,317 788,167 28,543
*

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 2021-09-23 18:15 632.13 632.50 -0.37 below flood pool
1 hour prior 2021-09-23 17:15 632.13 632.50 -0.37 below flood pool
2 hours prior 2021-09-23 16:15 632.13 632.50 -0.37 below flood pool
6 hours prior 2021-09-23 12:15 632.13 632.50 -0.37 below flood pool
12 hours prior 2021-09-23 06:15 632.14 632.50 -0.36 below flood pool
24 hours prior 2021-09-22 18:15 632.15 632.50 -0.35 below flood pool
48 hours prior 2021-09-21 18:15 632.20 632.50 -0.30 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1987-01-01
Vertical datum NGVD29
Gauge USGS:08051100
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

Lake Location