Reservoir · Nebraska · United States · BOR RISE
Calamus Reservoir
Calamus Reservoir and Virginia Smith Dam
60.6% full
Capacity
157.15 hm³
Volume stored
95 hm³
Vs month average
113% of normal
Coordinates
41.827°N, 99.220°W
Last updated
2026-10-28
Current fill
60.6%vs 7 days ago
-0.1 pplosing
vs 1 year ago
-12.6 ppyear-over-year
7-day trend
→stable
Drought context
Storage vs October average
113%of normal
60.6% full on 2026-10-28, against an average of 53.4% for October across 6 years of readings (+7.2 points).
Drought Monitor at this site · 27 October 2026
Nonenot in a drought category
Calamus Reservoir's coordinates fall outside every category on the weekly U.S. Drought Monitor map. That describes local conditions — rainfall, soil moisture, streamflow — not the reservoir's storage. Nebraska 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: 2026-10-28.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 41.827°N, 99.220°W · Open in Google Maps
About Calamus Reservoir
As of October 28, 2026, Calamus Reservoir is filled to 60.6% of its total capacity, holding 95.26 hm³ of water out of a maximum 157.15 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has held broadly steady (-0.1 pp), and it is 12.6 points below its level on the same date a year earlier.
Across the readings we hold for Calamus Reservoir — 1951 data points between October 30, 2021 and October 28, 2026 — the level has ranged from a low of 40.4% (September 18, 2022) to a high of 97.0% (May 2, 2022). On average the reservoir is fullest around May and at its lowest around September.
It is operated by BOR primarily for multiple purposes. It is at 41.827°N, 99.220°W.
Key facts
- Current fill level
- 60.6% of total capacity
- Water stored
- 95.26 hm³
- Total capacity
- 157.15 hm³
- 7-day change
- ▼ 0.1 pp
- Year-on-year
- ▼ 12.6 pp
- Primary use
- Multipurpose
- Operator
- BOR
- Coordinates
- 41.827°N, 99.220°W
- Last updated
- October 28, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 28 Oct 2026 | 60.6% | 95.26 |
| 27 Oct 2026 | 60.4% | 94.88 |
| 26 Oct 2026 | 60.6% | 95.21 |
| 25 Oct 2026 | 60.5% | 95.12 |
| 24 Oct 2026 | 60.5% | 95.07 |
| 23 Oct 2026 | 60.3% | 94.84 |
| 22 Oct 2026 | 60.6% | 95.16 |
| 21 Oct 2026 | 60.7% | 95.4 |
| 20 Oct 2026 | 60.7% | 95.4 |
| 19 Oct 2026 | 60.8% | 95.54 |
| 18 Oct 2026 | 60.8% | 95.58 |
| 17 Oct 2026 | 60.9% | 95.68 |