Lake Cypress Springs: 93.4% full as of 2023-10-03

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 2023-10-03 93.4 376.61 62,332 62,332 66,756 3,134
1 day prior 2023-10-02 93.5 376.63 62,395 62,395 66,756 3,135
2 days prior 2023-10-01 93.6 376.65 62,458 62,458 66,756 3,136
1 week prior 2023-09-26 93.9 376.73 62,709 62,709 66,756 3,142
1 month prior 2023-09-03 95.1 376.98 63,496 63,496 66,756 3,159
3 months prior 2023-07-03 100.0 378.26 67,599 66,756 66,756 - n.a. -
6 months prior 2023-04-03 100.0 378.45 68,218 66,756 66,756 - n.a. -
1 year prior 2022-10-03 88.4 375.53 58,987 58,987 66,756 3,062
*

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 2023-10-04 04:15 376.60 378.00 -1.40
1 hour prior 2023-10-04 03:15 376.61 378.00 -1.39
2 hours prior 2023-10-04 02:15 376.60 378.00 -1.40
6 hours prior 2023-10-03 22:15 376.60 378.00 -1.40
12 hours prior 2023-10-03 16:15 376.60 378.00 -1.40
24 hours prior 2023-10-03 04:15 376.62 378.00 -1.38
48 hours prior 2023-10-02 04:15 376.64 378.00 -1.36
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1971-01-01
Gauge USGS:07344484
Vertical datum NGVD29
Dead pool elevation 317.75 ft above NGVD29
Service spillway crest elevation 378.00 ft above NGVD29
Emergency spillway crest elevation 385.00 ft above NGVD29
Top of dam elevation 395.00 ft above NGVD29
Conservation pool elevation 378.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2007-07-01 (source: TWDB) : GIS Data

Lake Location