Lake Arrowhead: 69.7% full as of 2026-10-02

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 2026-10-02 69.7 920.68 160,487 160,487 230,359 11,762
1 day prior 2026-10-01 69.8 920.71 160,840 160,840 230,359 11,777
2 days prior 2026-09-30 69.6 920.67 160,370 160,370 230,359 11,757
1 week prior 2026-09-25 69.8 920.71 160,840 160,840 230,359 11,777
1 month prior 2026-09-02 72.9 921.31 167,999 167,999 230,359 12,087
3 months prior 2026-07-02 82.0 922.98 188,904 188,904 230,359 12,948
6 months prior 2026-04-02 81.4 922.87 187,483 187,483 230,359 12,892
1 year prior 2025-10-02 89.6 924.29 206,308 206,308 230,359 13,624
*

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 2026-10-02 23:00 920.68 926.00 -5.32
1 hour prior 2026-10-02 22:00 920.66 926.00 -5.34
2 hours prior 2026-10-02 21:00 920.66 926.00 -5.34
6 hours prior 2026-10-02 17:00 920.64 926.00 -5.36
12 hours prior 2026-10-02 11:00 920.67 926.00 -5.33
24 hours prior 2026-10-01 23:00 920.70 926.00 -5.30
48 hours prior 2026-09-30 23:00 920.66 926.00 -5.34
*

Data is provisional and subject to revision.

Additional Information

Impoundment date 1966-01-01
Vertical datum NGVD29
Dead pool elevation 874.00 ft above NGVD29
Service spillway crest elevation 926.00 ft above NGVD29
Maximum design elevation 939.55 ft above NGVD29
Top of dam elevation 944.00 ft above NGVD29
Conservation pool elevation 926.00 ft above NGVD29
Data download (CSV) period of record, last one year, last 30 days

Elevation-Area-Capacity Curves

2001-06-01 (source: TWDB) : GIS Data
2013-09-01 (source: TWDB) : GIS Data
Data Source USGS:07314800
USGS Monitoring Location USGS:07314800

Lake Location