Hubbard Creek Reservoir: 95.7% full as of 2019-08-21

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 2019-08-21 95.7 1,182.43 304,559 299,683 313,298 15,255
1 day prior 2019-08-20 95.8 1,182.46 305,017 300,141 313,298 15,270
2 days prior 2019-08-19 95.9 1,182.49 305,475 300,599 313,298 15,285
1 week prior 2019-08-14 96.7 1,182.64 307,774 302,898 313,298 15,358
1 month prior 2019-07-21 99.9 1,183.29 317,860 312,984 313,298 15,677
3 months prior 2019-05-21 100.0 1,183.49 321,006 313,298 313,298 - n.a. -
6 months prior 2019-02-21 100.0 1,183.39 319,431 313,298 313,298 - n.a. -
1 year prior 2018-08-21 73.7 1,177.53 235,695 230,819 313,298 12,845
*

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 2019-08-21 22:15 1,182.42 1,183.31 -0.89 below flood pool
1 hour prior 2019-08-21 21:15 1,182.42 1,183.31 -0.89 below flood pool
2 hours prior 2019-08-21 20:15 1,182.42 1,183.31 -0.89 below flood pool
6 hours prior 2019-08-21 16:15 1,182.43 1,183.31 -0.88 below flood pool
12 hours prior 2019-08-21 10:15 1,182.44 1,183.31 -0.87 below flood pool
24 hours prior 2019-08-20 22:15 1,182.45 1,183.31 -0.86 below flood pool
48 hours prior 2019-08-19 22:15 1,182.48 1,183.31 -0.83 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1962-01-01
Vertical datum NAVD88
Gauge USGS:08086400
Dead pool elevation
ending 2010-10-01
1,136.00 ft above NGVD29
Dead pool elevation
starting 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
ending 2010-10-01
1,183.00 ft above NGVD29
Conservation pool elevation
starting 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