Waco Lake: 88.5% full as of 2026-09-13

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 2026-09-13 88.5 459.58 167,451 167,225 188,891 7,948
Yesterday 2026-09-12 88.7 459.62 167,769 167,543 188,891 7,956
2 days ago 2026-09-11 88.9 459.66 168,087 167,861 188,891 7,965
1 week ago 2026-09-06 89.8 459.87 169,765 169,539 188,891 8,010
1 month ago 2026-08-13 94.6 460.99 178,866 178,640 188,891 8,233
3 months ago 2026-06-13 100.0 463.07 196,510 188,891 188,891 8,667
6 months ago 2026-03-13 98.3 461.84 185,923 185,697 188,891 8,372
1 year ago 2025-09-13 100.0 462.24 189,390 188,891 188,891 8,499
*

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 2026-09-13 22:15 459.56 462.22 -2.66 below flood pool
1 hour prior 2026-09-13 21:15 459.56 462.22 -2.66 below flood pool
2 hours prior 2026-09-13 20:15 459.56 462.22 -2.66 below flood pool
6 hours prior 2026-09-13 16:15 459.57 462.22 -2.65 below flood pool
12 hours prior 2026-09-13 10:15 459.58 462.22 -2.64 below flood pool
24 hours prior 2026-09-12 22:15 459.60 462.22 -2.62 below flood pool
48 hours prior 2026-09-11 22:15 459.65 462.22 -2.57 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1965-01-01
Vertical datum NAVD88
Dead pool elevation 400.22 ft above NAVD88
Service spillway crest elevation 465.22 ft above NAVD88
Top of flood gate elevation 500.22 ft above NAVD88
Emergency spillway crest elevation 500.22 ft above NAVD88
Flood pool elevation 500.22 ft above NAVD88
Maximum design elevation 505.22 ft above NAVD88
Top of dam elevation 510.22 ft above NAVD88
Conservation pool elevation
Start date: 2003-01-01 		462.22 ft above NAVD88
Conservation pool elevation
End date: 2003-01-01 		455.22 ft above NAVD88
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1965-01-01 (source: USGS)
1995-01-01 (source: TWDB) : GIS Data
2011-05-01 (source: TWDB) : GIS Data
2023-12-01 (source: TWDB) : GIS Data
Data Source USGS:08095550
USGS Monitoring Location USGS:08095550

Lake Location