Hubbard Creek Reservoir is 93.1% full as of 2016-09-29

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, while 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.

Date Percent Full Mean Water Level
(ft)
Reservoir Storage
(acre-ft)
Conservation Storage
(acre-ft)
Conservation Capacity
(acre-ft)
Surface Area
(acres)
Today 2016-09-29 93.1 1,181.79 302,921 296,005 318,067 14,359
Yesterday 2016-09-28 93.2 1,181.81 303,206 296,290 318,067 14,366
2 days ago 2016-09-27 93.2 1,181.82 303,349 296,433 318,067 14,370
1 week ago 2016-09-22 92.7 1,181.71 301,780 294,864 318,067 14,329
1 month ago 2016-08-29 93.4 1,181.87 304,064 297,148 318,067 14,388
3 months ago 2016-06-29 97.7 1,182.81 317,642 310,726 318,067 14,736
6 months ago 2016-03-29 45.0 1,168.84 150,118 143,202 318,067 9,204
1 year ago 2015-09-29 32.5 1,163.99 110,225 103,309 318,067 7,340
*

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 2016-09-29 18:15 1,181.78 1,183.3 -1.5 below flood pool
1 hour prior 2016-09-29 17:15 1,181.79 1,183.3 -1.5 below flood pool
2 hours prior 2016-09-29 16:15 1,181.78 1,183.3 -1.5 below flood pool
6 hours prior 2016-09-29 12:15 1,181.79 1,183.3 -1.5 below flood pool
12 hours prior 2016-09-29 06:15 1,181.80 1,183.3 -1.5 below flood pool
24 hours prior 2016-09-28 18:15 1,181.81 1,183.3 -1.5 below flood pool
48 hours prior 2016-09-27 18:15 1,181.82 1,183.3 -1.5 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
1136.0 ft above NGVD29
Dead pool elevation
starting 2010-10-01
1136.31 ft above NAVD88
Service spillway crest elevation 1176.5 ft above NGVD29
Conservation pool elevation
ending 2010-10-01
1183.0 ft above NGVD29
Conservation pool elevation
starting 2010-10-01
1183.31 ft above NAVD88
Top of flood gate elevation 1185 ft above NGVD29
Emergency spillway crest elevation 1194 ft above NGVD29
Emergency spillway crest elevation 1197 ft above NGVD29
Top of dam elevation 1208 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