Hubbard Creek Reservoir: 89.2% full as of 2020-08-11

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 2020-08-11 89.2 1,181.08 284,412 279,536 313,298 14,593
Yesterday 2020-08-10 89.4 1,181.11 284,850 279,974 313,298 14,608
2 days ago 2020-08-09 89.5 1,181.14 285,288 280,412 313,298 14,622
1 week ago 2020-08-04 90.3 1,181.30 287,634 282,758 313,298 14,701
1 month ago 2020-07-11 93.7 1,182.02 298,346 293,470 313,298 15,054
3 months ago 2020-05-11 97.1 1,182.73 309,158 304,282 313,298 15,402
6 months ago 2020-02-11 87.4 1,180.68 278,614 273,738 313,298 14,397
1 year ago 2019-08-11 97.2 1,182.74 309,312 304,436 313,298 15,407
*

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 2020-08-11 12:15 1,181.09 1,183.31 -2.22 below flood pool
1 hour prior 2020-08-11 11:15 1,181.08 1,183.31 -2.23 below flood pool
2 hours prior 2020-08-11 10:15 1,181.08 1,183.31 -2.23 below flood pool
6 hours prior 2020-08-11 06:15 1,181.07 1,183.31 -2.24 below flood pool
12 hours prior 2020-08-11 00:15 1,181.09 1,183.31 -2.22 below flood pool
24 hours prior 2020-08-10 12:15 1,181.12 1,183.31 -2.19 below flood pool
48 hours prior 2020-08-09 12:15 1,181.14 1,183.31 -2.17 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