White River Reservoir: 35.2% full as of 2025-09-18

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 2025-09-18 35.2 2,354.88 11,202 11,202 31,846 874
Yesterday 2025-09-17 35.1 2,354.87 11,193 11,193 31,846 874
2 days ago 2025-09-16 35.2 2,354.89 11,210 11,210 31,846 875
1 week ago 2025-09-11 35.1 2,354.84 11,167 11,167 31,846 873
1 month ago 2025-08-18 36.3 2,355.30 11,571 11,571 31,846 887
3 months ago 2025-06-18 40.6 2,356.78 12,914 12,914 31,846 926
6 months ago 2025-03-18 20.3 2,348.63 6,476 6,476 31,846 655
1 year ago 2024-09-18 22.0 2,349.44 7,014 7,014 31,846 676
*

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 2025-09-18 16:15 2,354.80 2,372.20 -17.40
1 hour prior 2025-09-18 15:15 2,354.82 2,372.20 -17.38
2 hours prior 2025-09-18 14:15 2,354.81 2,372.20 -17.39
6 hours prior 2025-09-18 10:15 2,354.87 2,372.20 -17.33
12 hours prior 2025-09-18 04:15 2,354.88 2,372.20 -17.32
24 hours prior 2025-09-17 16:15 2,354.83 2,372.20 -17.37
48 hours prior 2025-09-16 16:15 2,354.85 2,372.20 -17.35
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1963-01-01
Vertical datum NGVD29
Dead pool elevation 2,323.00 ft above NGVD29
Service spillway crest elevation 2,372.50 ft above NGVD29
Emergency spillway crest elevation 2,391.50 ft above NGVD29
Top of dam elevation 2,395.00 ft above NGVD29
Conservation pool elevation 2,372.20 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1971-05-01 (source: TWDB REPORT 126)
1992-10-01 (source: TWDB) : GIS Data
Data Source USGS:08080910

Lake Location