Lake Conroe is 98.8% full as of 2016-09-24

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 2016-09-24 98.8 200.75 406,239 406,205 410,988 19,071
1 day prior 2016-09-23 98.9 200.77 406,621 406,587 410,988 19,081
2 days prior 2016-09-22 99.1 200.80 407,193 407,159 410,988 19,096
1 week prior 2016-09-17 99.4 200.88 408,722 408,688 410,988 19,136
1 month prior 2016-08-24 99.5 200.90 409,105 409,071 410,988 19,147
3 months prior 2016-06-24 99.6 200.91 409,296 409,262 410,988 19,196
6 months prior 2016-03-24 100.0 201.02 411,406 410,988 410,988 - n.a. -
1 year prior 2015-09-24 93.2 199.51 382,980 382,946 410,988 18,446
*

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 2016-09-25 02:45 200.74 201.0 -0.3 below flood pool
1 hour prior 2016-09-25 01:45 200.74 201.0 -0.3 below flood pool
2 hours prior 2016-09-25 00:45 200.74 201.0 -0.3 below flood pool
6 hours prior 2016-09-24 20:45 200.74 201.0 -0.3 below flood pool
12 hours prior 2016-09-24 14:45 200.77 201.0 -0.2 below flood pool
24 hours prior 2016-09-24 02:45 200.75 201.0 -0.2 below flood pool
48 hours prior 2016-09-23 02:45 200.76 201.0 -0.2 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