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Reservoir · California · United States · CDEC

SUCCESS DAM

8.4% full

Capacity

119.01 hm³

Volume stored

10 hm³

Vs month average

81% of normal

Coordinates

36.057°N, 118.924°W

Last updated

2026-11-01

Current fill

8.4%
Critical

vs 7 days ago

+0.1 pp

gaining

vs 1 year ago

-3.5 pp

year-over-year

7-day trend

→

stable

Drought context

Storage vs November average

81%of normal

8.4% full on 2026-11-01, against an average of 10.4% for November across 6 years of readings (-2.0 points).

Drought Monitor at this site · 27 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: 2026-11-01.

Catchment Weather

Past 30 days + 14-day forecast · Open-Meteo

Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 36.057°N, 118.924°W · Open in Google Maps

About SUCCESS DAM

As of November 1, 2026, SUCCESS DAM is filled to 8.4% of its total capacity, holding 9.99 hm³ of water out of a maximum 119.01 hm³. At this level the reservoir is critically low.

Over the most recent week on record the fill level has held broadly steady (+0.1 pp), and it is 3.5 points below its level on the same date a year earlier.

Across the readings we hold for SUCCESS DAM — 1823 data points between November 3, 2021 and November 1, 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 is at 36.057°N, 118.924°W.

Key facts

Current fill level
8.4% of total capacity
Water stored
9.99 hm³
Total capacity
119.01 hm³
7-day change
▲ 0.1 pp
Year-on-year
▼ 3.5 pp
Primary use
Multipurpose
Operator
CDEC
Coordinates
36.057°N, 118.924°W
Last updated
November 1, 2026

Recent readings

DateFill levelVolume (hm³)
1 Nov 20268.4%9.99
31 Oct 20268.3%9.88
30 Oct 20268.3%9.88
29 Oct 20268.3%9.89
28 Oct 20268.3%9.89
27 Oct 20268.3%9.89
26 Oct 20268.3%9.88
25 Oct 20268.3%9.86
24 Oct 20268.3%9.83
23 Oct 20268.2%9.78
22 Oct 20268.2%9.71
21 Oct 20268.2%9.71

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