Hubbard Creek Reservoir: 95.1% full as of 2020-09-22

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 2020-09-22 95.1 1,182.32 302,884 298,008 313,298 15,201
1 day prior 2020-09-21 95.2 1,182.34 303,188 298,312 313,298 15,211
2 days prior 2020-09-20 95.3 1,182.36 303,492 298,616 313,298 15,221
1 week prior 2020-09-15 95.7 1,182.43 304,559 299,683 313,298 15,255
1 month prior 2020-08-22 87.7 1,180.76 279,767 274,891 313,298 14,436
3 months prior 2020-06-22 95.1 1,182.31 302,732 297,856 313,298 15,196
6 months prior 2020-03-22 98.9 1,183.08 314,579 309,703 313,298 15,574
1 year prior 2019-09-22 92.5 1,181.77 294,598 289,722 313,298 14,931
*

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 2020-09-23 03:15 1,182.31 1,183.31 -1.00 below flood pool
1 hour prior 2020-09-23 02:15 1,182.32 1,183.31 -0.99 below flood pool
2 hours prior 2020-09-23 01:15 1,182.32 1,183.31 -0.99 below flood pool
6 hours prior 2020-09-22 21:15 1,182.32 1,183.31 -0.99 below flood pool
12 hours prior 2020-09-22 15:15 1,182.32 1,183.31 -0.99 below flood pool
24 hours prior 2020-09-22 03:15 1,182.33 1,183.31 -0.98 below flood pool
48 hours prior 2020-09-21 03:15 1,182.35 1,183.31 -0.96 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