Squaw Creek Reservoir: 100.0% full as of 2024-07-20

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 2024-07-20 100.0 775.45 152,702 151,250 151,250 - n.a. -
Yesterday 2024-07-19 100.0 775.48 152,798 151,250 151,250 - n.a. -
2 days ago 2024-07-18 100.0 775.49 152,829 151,250 151,250 - n.a. -
1 week ago 2024-07-13 100.0 775.37 152,447 151,250 151,250 - n.a. -
1 month ago 2024-06-20 100.0 775.34 152,352 151,250 151,250 - n.a. -
3 months ago 2024-04-20 100.0 775.26 152,097 151,250 151,250 - n.a. -
6 months ago 2024-01-20 99.9 774.96 151,146 151,123 151,250 3,165
1 year ago 2023-07-20 100.0 775.05 151,431 151,250 151,250 - n.a. -
*

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 2024-07-20 14:00 775.46 775.00 0.46
1 hour prior 2024-07-20 13:00 775.45 775.00 0.45
2 hours prior 2024-07-20 12:00 775.45 775.00 0.45
6 hours prior 2024-07-20 08:00 775.45 775.00 0.45
12 hours prior 2024-07-20 02:00 775.46 775.00 0.46
24 hours prior 2024-07-19 14:00 775.48 775.00 0.48
48 hours prior 2024-07-18 14:00 775.50 775.00 0.50
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1977-01-01
Vertical datum NGVD29
Dead pool elevation 653.00 ft above NGVD29
Service spillway crest elevation 775.00 ft above NGVD29
Emergency spillway crest elevation 783.00 ft above NGVD29
Top of dam elevation 796.00 ft above NGVD29
Conservation pool elevation 775.00 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
Data Source USGS:08091730

Lake Location