Lake Conroe: 98.9% full as of 2025-01-17

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 2025-01-17 98.9 200.77 413,043 413,016 417,577 19,770
Yesterday 2025-01-16 99.0 200.79 413,439 413,412 417,577 19,781
2 days ago 2025-01-15 99.0 200.79 413,439 413,412 417,577 19,781
1 week ago 2025-01-10 98.5 200.69 411,463 411,436 417,577 19,727
1 month ago 2024-12-17 94.4 199.80 394,121 394,094 417,577 19,245
3 months ago 2024-10-17 94.3 199.79 393,928 393,901 417,577 19,240
6 months ago 2024-07-17 100.0 201.02 418,539 417,577 417,577 20,433
1 year ago 2024-01-17 98.3 200.64 410,478 410,451 417,577 19,700
*

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 2025-01-17 19:45 200.79 201.00 -0.21
1 hour prior 2025-01-17 18:45 200.80 201.00 -0.20
2 hours prior 2025-01-17 17:45 200.78 201.00 -0.22
6 hours prior 2025-01-17 13:45 200.75 201.00 -0.25
12 hours prior 2025-01-17 07:45 200.77 201.00 -0.23
24 hours prior 2025-01-16 19:45 200.78 201.00 -0.22
48 hours prior 2025-01-15 19:45 200.79 201.00 -0.21
*

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