Hubbard Creek Reservoir: 49.6% full as of 2025-05-12

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 2025-05-12 49.6 1,170.86 160,203 155,327 313,298 9,911
1 day prior 2025-05-11 49.6 1,170.87 160,302 155,426 313,298 9,915
2 days prior 2025-05-10 49.6 1,170.88 160,401 155,525 313,298 9,919
1 week prior 2025-05-05 49.0 1,170.69 158,523 153,647 313,298 9,842
1 month prior 2025-04-12 45.0 1,169.37 145,895 141,019 313,298 9,292
3 months prior 2025-02-12 46.5 1,169.88 150,687 145,811 313,298 9,503
6 months prior 2024-11-12 48.9 1,170.63 157,934 153,058 313,298 9,817
1 year prior 2024-05-12 50.8 1,171.25 164,098 159,222 313,298 10,066
*

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 2025-05-12 21:15 1,170.85 1,183.31 -12.46
1 hour prior 2025-05-12 20:15 1,170.84 1,183.31 -12.47
2 hours prior 2025-05-12 19:15 1,170.85 1,183.31 -12.46
6 hours prior 2025-05-12 15:15 1,170.84 1,183.31 -12.47
12 hours prior 2025-05-12 09:15 1,170.86 1,183.31 -12.45
24 hours prior 2025-05-11 21:15 1,170.85 1,183.31 -12.46
48 hours prior 2025-05-10 21:15 1,170.87 1,183.31 -12.44
*

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