Cedar Creek Reservoir: 86.9% full as of 2025-10-31

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 2025-10-31 86.9 319.31 560,518 560,419 644,686 30,114
1 day prior 2025-10-30 87.1 319.35 561,724 561,625 644,686 30,147
2 days prior 2025-10-29 87.6 319.46 565,045 564,946 644,686 30,237
1 week prior 2025-10-24 87.0 319.32 560,820 560,721 644,686 30,122
1 month prior 2025-09-30 90.9 320.14 585,801 585,702 644,686 30,815
3 months prior 2025-07-31 96.7 321.35 623,763 623,664 644,686 31,969
6 months prior 2025-04-30 100.0 322.05 646,422 644,686 644,686 - n.a. -
1 year prior 2024-10-31 84.4 318.77 544,380 544,281 644,686 29,647
*

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 2025-10-31 23:15 319.29 322.00 -2.71
1 hour prior 2025-10-31 22:15 319.29 322.00 -2.71
2 hours prior 2025-10-31 21:15 319.30 322.00 -2.70
6 hours prior 2025-10-31 17:15 319.30 322.00 -2.70
12 hours prior 2025-10-31 11:15 319.31 322.00 -2.69
24 hours prior 2025-10-30 23:15 319.33 322.00 -2.67
48 hours prior 2025-10-29 23:15 319.40 322.00 -2.60
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1966-01-01
Vertical datum NGVD29
Dead pool elevation 263.50 ft above NGVD29
Service spillway crest elevation 302.00 ft above NGVD29
Top of gate elevation 325.00 ft above NGVD29
Top of dam elevation 340.00 ft above NGVD29
Conservation pool elevation 322.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

1966-01-01 (source: USGS)
2005-07-01 (source: TWDB) : GIS Data
Data Source USGS:08063010

Lake Location