Lake Waxahachie: 98.0% full as of 2021-07-30

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 2021-07-30 98.0 531.16 11,168 10,562 10,780 636
Yesterday 2021-07-29 98.2 531.20 11,194 10,588 10,780 637
2 days ago 2021-07-28 98.6 531.26 11,232 10,626 10,780 638
1 week ago 2021-07-23 100.0 531.50 11,386 10,780 10,780 656
1 month ago 2021-06-30 100.0 531.79 11,573 10,780 10,780 - n.a. -
3 months ago 2021-04-30 100.0 532.22 11,853 10,780 10,780 - n.a. -
6 months ago 2021-01-30 95.2 530.69 10,872 10,266 10,780 627
1 year ago 2020-07-30 90.2 529.82 10,333 9,727 10,780 611
*

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 2021-07-30 17:30 531.14 531.50 -0.36 below flood pool
1 hour prior 2021-07-30 16:30 531.14 531.50 -0.36 below flood pool
2 hours prior 2021-07-30 15:30 531.14 531.50 -0.36 below flood pool
6 hours prior 2021-07-30 11:30 531.15 531.50 -0.35 below flood pool
12 hours prior 2021-07-30 05:30 531.17 531.50 -0.33 below flood pool
24 hours prior 2021-07-29 17:30 531.19 531.50 -0.31 below flood pool
48 hours prior 2021-07-28 17:30 531.24 531.50 -0.26 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 531.50 ft above NGVD29
Top of dam elevation 541.50 ft above NGVD29
Conservation pool elevation 531.50 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