Success Lake Water Level Today
California · near Porterville · Well below full pool
- Elevation
- 600.67 ft
- From full pool
- −43.38 ft
- Percent of pool
- 49.0%
- 24-hour change
- −0.33 ft
- 7-day change
- −2.41 ft
- Reading
- Sep 21, 2026 · USACE
Last year at Success Lake
Success Lake is 43.38 ft below full pool, at 600.67 ft, down 0.33 ft in the last 24 hours. That puts the lake at 49.0 percent of its conservation pool. The top of the flood pool is 51.8 ft higher, at 652.50 ft.
Over the last 7 days the level fell 2.41 ft, and over 30 days it fell 7.11 ft. In the 398 days of readings on this page the high was 645.59 ft on Jun 12, 2026 and the low was 594.97 ft on Oct 1, 2025, a range of 50.62 ft.
The reading is the U.S. Army Corps of Engineers gauge at Schafer Dam / Success Lake, near Porterville, taken Sep 21, 2026 and referenced to the NGVD29 datum. This page is rebuilt once a day from the agency feed; it is not a live gauge, so during a fast rise or a scheduled release check the USACE page for hourly values.
Success Lake pool elevations
| Current elevation | 600.67 ft |
|---|---|
| Full pool (top of conservation) | 644.05 ft |
| Top of flood pool | 652.50 ft |
| Bottom of conservation pool | 559.00 ft |
| Top of dam | 691.50 ft |
| Inflow | -35 cfs |
| Outflow | 118 cfs |
| 30-day change | −7.11 ft |
| 1-year high | 645.59 ft (Jun 12, 2026) |
| 1-year low | 594.97 ft (Oct 1, 2025) |
| Vertical datum | NGVD29 |
| Operating agency | U.S. Army Corps of Engineers, SPK district |
Source: U.S. Army Corps of Engineers. Read what full pool and flood pool mean.
More lakes in California
- Lake Oroville 767.67 ft, −128.29 ft from full
- Shasta Lake 984.99 ft, −81.78 ft from full
- Folsom Lake 408.15 ft, −57.85 ft from full
- Lake Isabella 2,557.94 ft, −26.04 ft from full
- New Melones Lake 1,007.63 ft, −75.95 ft from full
- Pine Flat Lake 742.21 ft, −209.11 ft from full
Success Lake level questions
What is the water level of Success Lake today?
Success Lake is at 600.67 ft as of Sep 21, 2026, −43.38 ft relative to full pool (644.05 ft). The 24-hour change is −0.33 ft.
What is full pool at Success Lake?
Full pool, the top of the conservation pool, is 644.05 ft (NGVD29). Above that, water is stored temporarily in the flood pool up to 652.50 ft. The bottom of the conservation pool is 559.00 ft.
Is Success Lake rising or falling?
Over the last 24 hours the level is −0.33 ft; over 7 days it fell 2.41 ft, and over 30 days it fell 7.11 ft.
Where does this Success Lake level come from?
From the U.S. Army Corps of Engineers (USACE) public data feed for Schafer Dam / Success Lake. Lake Levels Today republishes the agency's daily value without adjustment and links to the source below.