Lake Conroe: 100.0% full as of 2024-03-01

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 2024-03-01 100.0 201.00 417,605 417,577 417,577 19,894
Yesterday 2024-02-29 100.0 201.01 418,335 417,577 417,577 20,425
2 days ago 2024-02-28 100.0 201.07 419,562 417,577 417,577 20,469
1 week ago 2024-02-23 100.0 201.05 419,153 417,577 417,577 20,455
1 month ago 2024-02-01 100.0 201.21 422,434 417,577 417,577 20,560
3 months ago 2023-12-01 96.7 200.30 403,811 403,784 417,577 19,516
6 months ago 2023-09-01 91.5 199.17 382,103 382,076 417,577 18,905
1 year ago 2023-03-01 100.0 201.09 419,971 417,577 417,577 20,483
*

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 2024-03-01 19:00 200.99 201.00 -0.01
1 hour prior 2024-03-01 18:00 201.00 201.00 0.00
2 hours prior 2024-03-01 17:00 201.00 201.00 0.00
6 hours prior 2024-03-01 13:00 201.00 201.00 0.00
12 hours prior 2024-03-01 07:00 200.98 201.00 -0.02
24 hours prior 2024-02-29 19:00 201.02 201.00 0.02
48 hours prior 2024-02-28 19:00 201.08 201.00 0.08
*

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