Squaw Creek Reservoir: 99.3% full as of 2019-03-19

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 2019-03-19 99.3 774.66 150,200 150,177 151,250 3,147
1 day prior 2019-03-18 99.3 774.65 150,168 150,145 151,250 3,147
2 days prior 2019-03-17 99.3 774.68 150,263 150,240 151,250 3,148
1 week prior 2019-03-12 99.4 774.70 150,326 150,303 151,250 3,149
1 month prior 2019-02-19 100.0 775.41 152,575 151,250 151,250 - n.a. -
3 months prior 2018-12-19 100.0 775.58 153,117 151,250 151,250 - n.a. -
6 months prior 2018-09-19 100.0 775.52 152,925 151,250 151,250 - n.a. -
1 year prior 2018-03-19 99.4 774.69 150,294 150,271 151,250 3,149
*

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 2019-03-20 02:00 774.67 775.0 -0.3 below flood pool
1 hour prior 2019-03-20 01:00 774.67 775.0 -0.3 below flood pool
2 hours prior 2019-03-20 00:00 774.66 775.0 -0.3 below flood pool
6 hours prior 2019-03-19 20:00 774.67 775.0 -0.3 below flood pool
12 hours prior 2019-03-19 14:00 774.67 775.0 -0.3 below flood pool
24 hours prior 2019-03-19 02:00 774.65 775.0 -0.4 below flood pool
48 hours prior 2019-03-18 02:00 774.66 775.0 -0.3 below flood pool
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1977-01-01
Vertical datum NGVD29
Gauge USGS:08091730
Dead pool elevation 653.0 ft above NGVD29
Service spillway crest elevation 775.0 ft above NGVD29
Emergency spillway crest elevation 783.0 ft above NGVD29
Top of dam elevation 796.0 ft above NGVD29
Conservation pool elevation 775.0 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2007-12-01 (source: twdb) : GIS Data

Lake Location