Waco Lake is 99.1% full as of 2016-09-27

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.

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Most recent 2016-09-27 99.1 462.00 188,007 187,801 189,418 8,063
1 day prior 2016-09-26 98.9 461.94 187,524 187,318 189,418 8,051
2 days prior 2016-09-25 98.8 461.91 187,282 187,076 189,418 8,046
1 week prior 2016-09-20 99.1 461.98 187,846 187,640 189,418 8,059
1 month prior 2016-08-27 100.0 463.38 199,316 189,418 189,418 - n.a. -
3 months prior 2016-06-27 100.0 475.23 311,358 189,418 189,418 - n.a. -
6 months prior 2016-03-27 100.0 462.25 190,029 189,418 189,418 - n.a. -
1 year prior 2015-09-27 90.9 460.03 172,475 172,269 189,418 7,718
*

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 2016-09-28 04:15 462.03 462.2 -0.2 below flood pool
1 hour prior 2016-09-28 03:15 462.03 462.2 -0.2 below flood pool
2 hours prior 2016-09-28 02:15 462.03 462.2 -0.2 below flood pool
6 hours prior 2016-09-27 22:15 462.02 462.2 -0.2 below flood pool
12 hours prior 2016-09-27 16:15 462.02 462.2 -0.2 below flood pool
24 hours prior 2016-09-27 04:15 461.97 462.2 -0.2 below flood pool
48 hours prior 2016-09-26 04:15 461.93 462.2 -0.3 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1965-01-01
Vertical datum NAVD88
Gauge USGS:08095550
Dead pool elevation 400.2 ft above NAVD88
Service spillway crest elevation 465 ft above NGVD29
Conservation pool elevation
ending 2003-01-01
455.2 ft above NAVD88
Conservation pool elevation
starting 2003-01-01
462.2 ft above NAVD88
Top of flood gate elevation 500 ft above NGVD29
Emergency spillway crest elevation 500 ft above NGVD29
Flood pool elevation 500 ft above NGVD29
Maximum design elevation 505 ft above NGVD29
Top of dam elevation 510 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1965-01-01 (source: usgs)
2011-05-01 (source: twdb) : GIS Data