Lake Conroe: 99.4% full as of 2025-02-11

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 2025-02-11 99.4 200.88 415,221 415,194 417,577 19,829
Yesterday 2025-02-10 99.4 200.88 415,221 415,194 417,577 19,829
2 days ago 2025-02-09 99.4 200.88 415,221 415,194 417,577 19,829
1 week ago 2025-02-04 99.3 200.86 414,825 414,798 417,577 19,819
1 month ago 2025-01-11 98.7 200.73 412,253 412,226 417,577 19,748
3 months ago 2024-11-11 95.4 200.03 398,562 398,535 417,577 19,370
6 months ago 2024-08-11 99.5 200.89 415,420 415,393 417,577 19,835
1 year ago 2024-02-11 100.0 201.34 425,112 417,577 417,577 20,641
*

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 2025-02-11 03:00 200.87 201.00 -0.13
1 hour prior 2025-02-11 02:00 200.87 201.00 -0.13
2 hours prior 2025-02-11 01:00 200.86 201.00 -0.14
6 hours prior 2025-02-10 21:00 200.87 201.00 -0.13
12 hours prior 2025-02-10 15:00 200.88 201.00 -0.12
24 hours prior 2025-02-10 03:00 200.89 201.00 -0.11
48 hours prior 2025-02-09 03:00 200.86 201.00 -0.14
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1973-01-01
Vertical datum NGVD29
Dead pool elevation 145.00 ft above NGVD29
Top of flood gate elevation 202.50 ft above NGVD29
Emergency spillway crest elevation 173.00 ft above NGVD29
Maximum design elevation 207.00 ft above NGVD29
Top of dam elevation 212.00 ft above NGVD29
Conservation pool elevation 201.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1973-01-01 (source: TWDB)
1996-04-01 (source: TWDB) : GIS Data
2010-08-01 (source: TWDB) : GIS Data
2020-10-01 (source: TWDB) : GIS Data
Data Source USGS:08067600

Lake Location