Red Bluff Reservoir: 45.5% full as of 2026-10-29

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 2026-10-29 45.5 2,814.68 66,079 66,079 145,165 4,515
Yesterday 2026-10-28 45.6 2,814.69 66,123 66,123 145,165 4,517
2 days ago 2026-10-27 45.4 2,814.63 65,857 65,857 145,165 4,505
1 week ago 2026-10-22 46.5 2,815.00 67,493 67,493 145,165 4,580
1 month ago 2026-09-29 45.4 2,814.64 65,902 65,902 145,165 4,507
3 months ago 2026-07-29 48.3 2,815.56 70,104 70,104 145,165 4,692
6 months ago 2026-04-29 53.7 2,817.19 77,974 77,974 145,165 5,017
1 year ago 2025-10-29 50.7 2,816.28 73,580 73,580 145,165 4,836
*

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 2026-10-29 00:15 2,814.69 2,828.10 -13.41
1 hour prior 2026-10-28 23:15 2,814.70 2,828.10 -13.40
2 hours prior 2026-10-28 22:15 2,814.70 2,828.10 -13.40
6 hours prior 2026-10-28 18:15 2,814.70 2,828.10 -13.40
12 hours prior 2026-10-28 12:15 2,814.70 2,828.10 -13.40
24 hours prior 2026-10-28 00:15 2,814.66 2,828.10 -13.44
48 hours prior 2026-10-27 00:15 2,814.62 2,828.10 -13.48
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1936-01-01
Vertical datum
Start date: 2022-09-13 		NAVD88
Vertical datum
Start date to end date: 1999-04-17 to 2022-09-12 		NGVD29
Service spillway crest elevation
Start date: 2022-09-13 		2,828.10 ft above NAVD88
Service spillway crest elevation
End date: 2022-09-12 		2,827.40 ft above NGVD29
Top of gate elevation
Start date: 2022-09-13 		2,843.10 ft above NAVD88
Top of gate elevation
End date: 2022-09-12 		2,842.40 ft above NGVD29
Emergency spillway crest elevation
Start date: 2022-09-13 		2,846.10 ft above NAVD88
Emergency spillway crest elevation
End date: 2022-09-12 		2,845.40 ft above NGVD29
Top of dam elevation
Start date: 2022-09-13 		2,857.10 ft above NAVD88
Top of dam elevation
End date: 2022-09-12 		2,856.40 ft above NGVD29
Conservation pool elevation
Start date: 2022-09-13 		2,828.10 ft above NAVD88
Conservation pool elevation
End date: 2022-09-12 		2,827.40 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2011-11-01 (source: TWDB) : GIS Data
Data Source USGS:08410000
USGS Monitoring Location USGS:08410000

Lake Location