Ray Roberts Lake: 99.6% full as of 2017-09-23

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 2017-09-23 99.6 632.40 785,656 785,333 788,167 28,303
Yesterday 2017-09-22 99.7 632.41 785,940 785,617 788,167 28,338
2 days ago 2017-09-21 99.7 632.42 786,223 785,900 788,167 28,372
1 week ago 2017-09-16 100.0 632.51 788,774 788,167 788,167 - n.a. -
1 month ago 2017-08-23 100.0 632.71 794,460 788,167 788,167 - n.a. -
3 months ago 2017-06-23 99.0 632.23 780,855 780,532 788,167 28,185
6 months ago 2017-03-23 99.7 632.42 786,223 785,900 788,167 28,372
1 year ago 2016-09-23 98.9 632.20 780,009 779,686 788,167 28,164
*

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 2017-09-23 07:15 632.40 632.5 -0.1 below flood pool
1 hour prior 2017-09-23 06:15 632.40 632.5 -0.1 below flood pool
2 hours prior 2017-09-23 05:15 632.40 632.5 -0.1 below flood pool
6 hours prior 2017-09-23 01:15 632.40 632.5 -0.1 below flood pool
12 hours prior 2017-09-22 19:15 632.40 632.5 -0.1 below flood pool
24 hours prior 2017-09-22 07:15 632.41 632.5 -0.1 below flood pool
48 hours prior 2017-09-21 07:15 632.43 632.5 -0.1 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 551.0 ft above NGVD29
Service spillway crest elevation 645.5 ft above NGVD29
Emergency spillway crest elevation 645.5 ft above NGVD29
Flood pool elevation 640.5 ft above NGVD29
Maximum design elevation 658.8 ft above NGVD29
Top of dam elevation 665.0 ft above NGVD29
Conservation pool elevation 632.5 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