Lake Conroe: 99.4% full as of 2017-07-25

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 2017-07-25 99.4 200.88 408,722 408,688 410,988 19,136
Yesterday 2017-07-24 99.5 200.90 409,105 409,071 410,988 19,147
2 days ago 2017-07-23 99.7 200.93 409,680 409,646 410,988 19,295
1 week ago 2017-07-18 100.0 201.05 411,983 410,988 410,988 - n.a. -
1 month ago 2017-06-25 99.6 200.92 409,488 409,454 410,988 19,245
3 months ago 2017-04-25 99.7 200.94 409,872 409,838 410,988 19,344
6 months ago 2017-01-25 100.0 201.30 416,804 410,988 410,988 - n.a. -
1 year ago 2016-07-25 96.5 200.24 396,579 396,545 410,988 18,812
*

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 2017-07-25 20:45 200.86 201.0 -0.1 below flood pool
1 hour prior 2017-07-25 19:45 200.86 201.0 -0.1 below flood pool
2 hours prior 2017-07-25 18:45 200.87 201.0 -0.1 below flood pool
6 hours prior 2017-07-25 14:45 200.88 201.0 -0.1 below flood pool
12 hours prior 2017-07-25 08:45 200.89 201.0 -0.1 below flood pool
24 hours prior 2017-07-24 20:45 200.88 201.0 -0.1 below flood pool
48 hours prior 2017-07-23 20:45 200.91 201.0 -0.1 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1973-01-01
Vertical datum NGVD29
Gauge USGS:08067600
Dead pool elevation 145.0 ft above NGVD29
Conservation pool elevation 201.0 ft above NGVD29
Top of flood gate elevation 202.5 ft above NGVD29
Emergency spillway crest elevation 173 ft above NGVD29
Maximum design elevation 207 ft above NGVD29
Top of dam elevation 212 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1973-01-01 (source: usgs)
1996-04-01 (source: twdb) : GIS Data
2010-08-01 (source: twdb) : GIS Data

Lake Location