Reservoir · Colorado · United States · BOR RISE
Silver Jack Reservoir
Silver Jack Reservoir and Dam
19.7% full
Capacity
16.68 hm³
Volume stored
3 hm³
Vs month average
210% of normal
Coordinates
38.233°N, 107.541°W
Last updated
2026-10-26
Current fill
19.7%vs 7 days ago
+8.8 ppgaining
vs 1 year ago
+8.5 ppyear-over-year
7-day trend
↑rising
Drought context
Storage vs October average
210%of normal
19.7% full on 2026-10-26, against an average of 9.4% for October across 6 years of readings (+10.3 points).
Drought Monitor at this site · 20 October 2026
D1moderate drought
The ground at Silver Jack Reservoir's coordinates falls inside the D1 area of the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Colorado drought figures →
Data source: BOR RISE — US Bureau of Reclamation — daily reservoir storage volume. Capacity is the design (normal full-pool) capacity from the US National Inventory of Dams (NID); fill % = current volume ÷ design capacity. Last reading: 2026-10-26.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 38.233°N, 107.541°W · Open in Google Maps
About Silver Jack Reservoir
As of October 26, 2026, Silver Jack Reservoir is filled to 19.7% of its total capacity, holding 3.29 hm³ of water out of a maximum 16.68 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has risen by 8.8 percentage points, and it is 8.5 points above its level on the same date a year earlier.
Across the readings we hold for Silver Jack Reservoir — 1820 data points between October 29, 2021 and October 26, 2026 — the level has ranged from a low of 3.5% (September 29, 2025) to a high of 98.3% (June 3, 2025). On average the reservoir is fullest around June and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It is at 38.233°N, 107.541°W.
Key facts
- Current fill level
- 19.7% of total capacity
- Water stored
- 3.29 hm³
- Total capacity
- 16.68 hm³
- 7-day change
- ▲ 8.8 pp
- Year-on-year
- ▲ 8.5 pp
- Primary use
- Multipurpose
- Operator
- BOR
- Coordinates
- 38.233°N, 107.541°W
- Last updated
- October 26, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 26 Oct 2026 | 19.7% | 3.29 |
| 25 Oct 2026 | 19.1% | 3.18 |
| 24 Oct 2026 | 18.1% | 3.02 |
| 23 Oct 2026 | 17.0% | 2.83 |
| 22 Oct 2026 | 14.9% | 2.49 |
| 21 Oct 2026 | 11.9% | 1.98 |
| 20 Oct 2026 | 11.1% | 1.85 |
| 19 Oct 2026 | 10.9% | 1.82 |
| 18 Oct 2026 | 10.7% | 1.79 |
| 17 Oct 2026 | 10.6% | 1.76 |
| 16 Oct 2026 | 10.4% | 1.73 |
| 15 Oct 2026 | 10.1% | 1.69 |