Hubbard Creek Reservoir: 53.8% full as of 2023-09-30

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 2023-09-30 53.8 1,172.16 173,433 168,557 313,298 10,452
1 day prior 2023-09-29 53.9 1,172.19 173,746 168,870 313,298 10,464
2 days prior 2023-09-28 54.0 1,172.22 174,061 169,185 313,298 10,477
1 week prior 2023-09-23 54.4 1,172.33 175,215 170,339 313,298 10,523
1 month prior 2023-08-30 55.6 1,172.68 178,926 174,050 313,298 10,677
3 months prior 2023-06-30 61.8 1,174.46 198,573 193,697 313,298 11,405
6 months prior 2023-03-30 65.6 1,175.49 210,540 205,664 313,298 11,836
1 year prior 2022-09-30 70.8 1,176.83 226,830 221,954 313,298 12,488
*

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 2023-10-01 02:15 1,172.14 1,183.31 -11.17
1 hour prior 2023-10-01 01:15 1,172.14 1,183.31 -11.17
2 hours prior 2023-10-01 00:15 1,172.13 1,183.31 -11.18
6 hours prior 2023-09-30 20:15 1,172.14 1,183.31 -11.17
12 hours prior 2023-09-30 14:15 1,172.16 1,183.31 -11.15
24 hours prior 2023-09-30 02:15 1,172.16 1,183.31 -11.15
48 hours prior 2023-09-29 02:15 1,172.20 1,183.31 -11.11
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1962-01-01
Gauge USGS:08086400
Vertical datum NAVD88
Dead pool elevation
End date: 2010-10-01 		1,136.00 ft above NGVD29
Dead pool elevation
Start date: 2010-10-01 		1,136.31 ft above NAVD88
Service spillway crest elevation 1,176.50 ft above NGVD29
Top of flood gate elevation 1,185.00 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
End date: 2010-10-01 		1,183.00 ft above NGVD29
Conservation pool elevation
Start date: 2010-10-01 		1,183.31 ft above NAVD88
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

Lake Location