Lake Waxahachie: 98.1% full as of 2017-07-21

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, while 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 2017-07-21 98.1 531.18 11,181 10,575 10,780 636
Yesterday 2017-07-20 98.3 531.22 11,207 10,601 10,780 637
2 days ago 2017-07-19 98.6 531.27 11,239 10,633 10,780 638
1 week ago 2017-07-14 99.8 531.46 11,360 10,754 10,780 650
1 month ago 2017-06-21 100.0 531.57 11,431 10,780 10,780 - n.a. -
3 months ago 2017-04-21 100.0 531.95 11,677 10,780 10,780 - n.a. -
6 months ago 2017-01-21 99.2 531.36 11,296 10,690 10,780 640
1 year ago 2016-07-21 100.0 531.56 11,424 10,780 10,780 - n.a. -
*

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 2017-07-21 22:30 531.14 531.5 -0.4 below flood pool
1 hour prior 2017-07-21 21:30 531.15 531.5 -0.4 below flood pool
2 hours prior 2017-07-21 20:30 531.15 531.5 -0.4 below flood pool
6 hours prior 2017-07-21 16:30 531.16 531.5 -0.3 below flood pool
12 hours prior 2017-07-21 10:30 531.18 531.5 -0.3 below flood pool
24 hours prior 2017-07-20 22:30 531.20 531.5 -0.3 below flood pool
48 hours prior 2017-07-19 22:30 531.24 531.5 -0.3 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1956-01-01
Vertical datum NGVD29
Gauge USGS:08063600
Dead pool elevation 498.75 ft above NGVD29
Service spillway crest elevation 531.5 ft above NGVD29
Conservation pool elevation 531.5 ft above NGVD29
Top of dam elevation 541.5 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2000-07-01 (source: twdb) : GIS Data

Lake Location