Hubbard Creek Reservoir: 46.2% full as of 2025-10-31

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)
Most recent 2025-10-31 46.2 1,169.76 149,550 144,674 313,298 9,452
1 day prior 2025-10-30 46.2 1,169.77 149,645 144,769 313,298 9,456
2 days prior 2025-10-29 46.3 1,169.80 149,929 145,053 313,298 9,469
1 week prior 2025-10-24 46.5 1,169.86 150,497 145,621 313,298 9,495
1 month prior 2025-09-30 47.8 1,170.28 154,523 149,647 313,298 9,673
3 months prior 2025-07-31 52.3 1,171.70 168,670 163,794 313,298 10,256
6 months prior 2025-04-30 49.0 1,170.69 158,523 153,647 313,298 9,842
1 year prior 2024-10-31 42.1 1,168.38 136,918 132,042 313,298 8,848
*

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 2025-10-31 22:15 1,169.74 1,183.31 -13.57
1 hour prior 2025-10-31 21:15 1,169.74 1,183.31 -13.57
2 hours prior 2025-10-31 20:15 1,169.74 1,183.31 -13.57
6 hours prior 2025-10-31 16:15 1,169.76 1,183.31 -13.55
12 hours prior 2025-10-31 10:15 1,169.76 1,183.31 -13.55
24 hours prior 2025-10-30 22:15 1,169.76 1,183.31 -13.55
48 hours prior 2025-10-29 22:15 1,169.78 1,183.31 -13.53
*

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

Lake Location