Reservoir · California · United States · CDEC
SUCCESS DAM
8.6% full
Capacity
119.01 hm³
Volume stored
10 hm³
Vs month average
51% of normal
Coordinates
36.057°N, 118.924°W
Last updated
2026-10-12
Current fill
8.6%vs 7 days ago
-1.2%losing
vs 1 year ago
-1.5%year-over-year
7-day trend
→stable
Drought context
Storage vs October average
51%of normal
8.6% full on 2026-10-12, against an average of 16.9% for October across 6 years of readings (-8.3 points).
Drought Monitor at this site · 6 October 2026
D0abnormally dry
The ground at SUCCESS DAM's coordinates falls inside the D0 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. California drought figures →
Data source: CDEC — California Dept of Water Resources — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-10-12.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 36.057, -118.924 · Open in Google Maps
About SUCCESS DAM
As of October 12, 2026, SUCCESS DAM is filled to 8.6% of its total capacity, holding roughly 10 hm³ of water out of a maximum 119 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-1.2 pts), and it is 1.5 points below its level on the same date a year earlier.
Across the readings we hold for SUCCESS DAM — 1823 data points between October 14, 2021 and October 12, 2026 — the level has ranged from a low of 5.1% (October 23, 2022) to a high of 100.0% (March 15, 2023). On average the reservoir is fullest around June and at its lowest around November.
It is operated by CDEC primarily for multiple purposes. It lies within the California basin at 36.057°N, 118.924°W.
Key facts
- Current fill level
- 8.6%
- Water stored
- 10 hm³
- Total capacity
- 119 hm³
- 7-day change
- ▼ 1.2 pts
- Year-on-year
- ▼ 1.5 pts
- Primary use
- Multipurpose
- River basin
- California
- Operator
- CDEC
- Coordinates
- 36.057°N, 118.924°W
- Last updated
- October 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Oct 2026 | 8.6% | 10 |
| 11 Oct 2026 | 8.7% | 10 |
| 10 Oct 2026 | 8.9% | 11 |
| 9 Oct 2026 | 9.1% | 11 |
| 8 Oct 2026 | 9.3% | 11 |
| 7 Oct 2026 | 9.4% | 11 |
| 6 Oct 2026 | 9.6% | 11 |
| 5 Oct 2026 | 9.8% | 12 |
| 4 Oct 2026 | 10.0% | 12 |
| 3 Oct 2026 | 10.2% | 12 |
| 2 Oct 2026 | 10.4% | 12 |
| 1 Oct 2026 | 10.7% | 13 |