Lake Crook: 89.0% full as of 2026-09-02

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 2026-09-02 89.0 475.02 8,198 8,183 9,195 1,018
Yesterday 2026-09-01 89.2 475.04 8,218 8,203 9,195 1,018
2 days ago 2026-08-31 89.3 475.05 8,228 8,213 9,195 1,019
1 week ago 2026-08-26 90.5 475.16 8,340 8,325 9,195 1,022
1 month ago 2026-08-02 95.5 475.60 8,793 8,778 9,195 1,036
3 months ago 2026-06-02 99.4 475.95 9,158 9,143 9,195 1,053
6 months ago 2026-03-02 97.3 475.76 8,960 8,945 9,195 1,041
1 year ago 2025-09-02 94.1 475.48 8,669 8,654 9,195 1,033
*

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 2026-09-02 00:00 475.02 476.00 -0.98
1 hour prior 2026-09-01 23:00 475.03 476.00 -0.97
2 hours prior 2026-09-01 22:00 475.02 476.00 -0.98
6 hours prior 2026-09-01 18:00 475.03 476.00 -0.97
12 hours prior 2026-09-01 12:00 475.04 476.00 -0.96
24 hours prior 2026-09-01 00:00 475.04 476.00 -0.96
48 hours prior 2026-08-31 00:00 475.06 476.00 -0.94
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1923-01-01
Vertical datum NGVD29
Dead pool elevation 456.80 ft above NGVD29
Emergency spillway crest elevation 476.00 ft above NGVD29
Top of dam elevation 484.00 ft above NGVD29
Conservation pool elevation 476.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1923-01-01 (source: USGS)
2003-06-01 (source: TWDB) : GIS Data
Data Source USGS:07335600
USGS Monitoring Location USGS:07335600

Lake Location