Hubbard Creek Reservoir: 35.6% full as of 2026-10-28

Historical Data

Date Percent Full Mean Water Level
(ft) 		Reservoir Storage
(acre-ft) 		Conservation Storage
(acre-ft) 		Conservation Capacity
(acre-ft) 		Surface Area
(acres)
Most recent 2026-10-28 35.6 1,165.93 116,431 111,555 313,298 7,899
1 day prior 2026-10-27 35.6 1,165.94 116,509 111,633 313,298 7,902
2 days prior 2026-10-26 35.7 1,165.95 116,589 111,713 313,298 7,906
1 week prior 2026-10-21 35.9 1,166.04 117,302 112,426 313,298 7,940
1 month prior 2026-09-28 35.7 1,165.97 116,747 111,871 313,298 7,913
3 months prior 2026-07-28 40.9 1,167.92 132,892 128,016 313,298 8,658
6 months prior 2026-04-28 45.4 1,169.50 147,107 142,231 313,298 9,346
1 year prior 2025-10-28 46.4 1,169.85 150,402 145,526 313,298 9,490
*

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 2026-10-28 23:15 1,165.92 1,183.31 -17.39
1 hour prior 2026-10-28 22:15 1,165.92 1,183.31 -17.39
2 hours prior 2026-10-28 21:15 1,165.92 1,183.31 -17.39
6 hours prior 2026-10-28 17:15 1,165.92 1,183.31 -17.39
12 hours prior 2026-10-28 11:15 1,165.94 1,183.31 -17.37
24 hours prior 2026-10-27 23:15 1,165.94 1,183.31 -17.37
48 hours prior 2026-10-26 23:15 1,165.94 1,183.31 -17.37
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1962-01-01
Vertical datum NAVD88
Dead pool elevation
Start date: 2010-10-01 		1,136.31 ft above NAVD88
Dead pool elevation
End date: 2010-10-01 		1,136.00 ft above NGVD29
Service spillway crest elevation 1,176.50 ft above NGVD29
Emergency spillway crest elevation 1,194.00 ft above NGVD29
Emergency spillway crest elevation 1,197.00 ft above NGVD29
Top of dam elevation 1,208.00 ft above NGVD29
Conservation pool elevation
Start date: 2010-10-01 		1,183.31 ft above NAVD88
Conservation pool elevation
End date: 2010-10-01 		1,183.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1962-01-01 (source: USGS)
1997-02-01 (source: TWDB) : GIS Data
2018-01-01 (source: TWDB) : GIS Data
Data Source USGS:08086400
USGS Monitoring Location USGS:08086400

Lake Location