Hubbard Creek Reservoir: 83.4% full as of 2018-05-21

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 2018-05-21 83.4 1,179.59 272,239 265,323 318,067 13,545
Yesterday 2018-05-20 82.3 1,179.32 268,592 261,676 318,067 13,445
2 days ago 2018-05-19 82.4 1,179.36 269,130 262,214 318,067 13,460
1 week ago 2018-05-14 82.6 1,179.39 269,535 262,619 318,067 13,471
1 month ago 2018-04-21 83.5 1,179.61 272,510 265,594 318,067 13,552
3 months ago 2018-02-21 85.3 1,180.03 278,244 271,328 318,067 13,707
6 months ago 2017-11-21 87.6 1,180.56 285,576 278,660 318,067 13,904
1 year ago 2017-05-21 96.5 1,182.55 313,859 306,943 318,067 14,640
*

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 2018-05-21 19:15 1,181.94 1,183.3 -1.4 below flood pool
1 hour prior 2018-05-21 18:15 1,180.89 1,183.3 -2.4 below flood pool
2 hours prior 2018-05-21 17:15 1,181.65 1,183.3 -1.7 below flood pool
6 hours prior 2018-05-21 13:15 1,179.32 1,183.3 -4.0 below flood pool
12 hours prior 2018-05-21 07:15 1,179.31 1,183.3 -4.0 below flood pool
24 hours prior 2018-05-20 19:15 1,179.31 1,183.3 -4.0 below flood pool
48 hours prior 2018-05-19 19:15 1,179.38 1,183.3 -3.9 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
1,136.0 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

Lake Location