Lake Conroe: 94.6% full as of 2026-01-13

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 2026-01-13 94.6 199.85 395,084 395,057 417,577 19,273
Yesterday 2026-01-12 94.7 199.86 395,277 395,250 417,577 19,278
2 days ago 2026-01-11 94.8 199.89 395,855 395,828 417,577 19,294
1 week ago 2026-01-06 94.7 199.87 395,469 395,442 417,577 19,283
1 month ago 2025-12-13 95.4 200.03 398,562 398,535 417,577 19,370
3 months ago 2025-10-13 96.2 200.19 401,668 401,641 417,577 19,456
6 months ago 2025-07-13 100.0 201.13 420,791 417,577 417,577 20,509
1 year ago 2025-01-13 99.0 200.80 413,637 413,610 417,577 19,786
*

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 2026-01-13 05:45 199.85 201.00 -1.15
1 hour prior 2026-01-13 04:45 199.85 201.00 -1.15
2 hours prior 2026-01-13 03:45 199.85 201.00 -1.15
6 hours prior 2026-01-12 23:45 199.85 201.00 -1.15
12 hours prior 2026-01-12 17:45 199.87 201.00 -1.13
24 hours prior 2026-01-12 05:45 199.87 201.00 -1.13
48 hours prior 2026-01-11 05:45 199.90 201.00 -1.10
*

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 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