Hubbard Creek Reservoir: 100.0% full as of 2018-11-21

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)
Today 2018-11-21 100.0 1,183.32 318,331 313,298 313,298 - n.a. -
Yesterday 2018-11-20 100.0 1,183.32 318,331 313,298 313,298 - n.a. -
2 days ago 2018-11-19 100.0 1,183.32 318,331 313,298 313,298 - n.a. -
1 week ago 2018-11-14 100.0 1,183.39 319,431 313,298 313,298 - n.a. -
1 month ago 2018-10-21 92.2 1,181.71 293,703 288,827 313,298 14,902
3 months ago 2018-08-21 73.7 1,177.53 235,695 230,819 313,298 12,845
6 months ago 2018-05-21 81.5 1,179.37 260,175 255,299 313,298 13,754
1 year ago 2017-11-21 87.6 1,180.56 285,576 278,660 318,067 13,904
*

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 2018-11-21 12:15 1,183.31 1,183.3 0.0 into flood pool
1 hour prior 2018-11-21 11:15 1,183.31 1,183.3 0.0 into flood pool
2 hours prior 2018-11-21 10:15 1,183.31 1,183.3 0.0 into flood pool
6 hours prior 2018-11-21 06:15 1,183.32 1,183.3 0.0 into flood pool
12 hours prior 2018-11-21 00:15 1,183.32 1,183.3 0.0 into flood pool
24 hours prior 2018-11-20 12:15 1,183.31 1,183.3 0.0 into flood pool
48 hours prior 2018-11-19 12:15 1,183.32 1,183.3 0.0 into 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
1,136.0 ft above NGVD29
Dead pool elevation
starting 2010-10-01
1,136.3 ft above NAVD88
Service spillway crest elevation 1,176.5 ft above NGVD29
Top of flood gate elevation 1,185.0 ft above NGVD29
Emergency spillway crest elevation 1,194.0 ft above NGVD29
Emergency spillway crest elevation 1,197.0 ft above NGVD29
Top of dam elevation 1,208.0 ft above NGVD29
Conservation pool elevation
ending 2010-10-01
1,183.0 ft above NGVD29
Conservation pool elevation
starting 2010-10-01
1,183.3 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