Reservoir · Oregon · United States · BOR RISE
Haystack Reservoir
Haystack Reservoir and Dam
82.4% full
Capacity
6.95 hm³
Volume stored
6 hm³
Coordinates
44.499°N, 121.154°W
Last updated
2026-09-30
Current fill
82.4%vs 7 days ago
-9.0%losing
vs 1 year ago
-3.9%year-over-year
7-day trend
↓falling
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: 2026-09-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 44.499, -121.154 · Open in Google Maps
About Haystack Reservoir
As of September 30, 2026, Haystack Reservoir is filled to 82.4% of its total capacity, holding roughly 6 hm³ of water out of a maximum 7 hm³. At this level the reservoir is high.
Over the most recent week on record the fill level has fallen by 9.0 percentage points, and it is 3.9 points below its level on the same date a year earlier.
Across the readings we hold for Haystack Reservoir — 2190 data points between October 2, 2021 and September 30, 2026 — the level has ranged from a low of 10.8% (October 15, 2022) to a high of 104.5% (October 16, 2021). On average the reservoir is fullest around April and at its lowest around December.
It is operated by BOR primarily for multiple purposes. It lies within the Oregon basin at 44.499°N, 121.154°W.
Key facts
- Current fill level
- 82.4%
- Water stored
- 6 hm³
- Total capacity
- 7 hm³
- 7-day change
- ▼ 9.0 pts
- Year-on-year
- ▼ 3.9 pts
- Primary use
- Multipurpose
- River basin
- Oregon
- Operator
- BOR
- Coordinates
- 44.499°N, 121.154°W
- Last updated
- September 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Sep 2026 | 82.4% | 6 |
| 29 Sep 2026 | 85.3% | 6 |
| 28 Sep 2026 | 87.2% | 6 |
| 27 Sep 2026 | 88.1% | 6 |
| 26 Sep 2026 | 88.6% | 6 |
| 25 Sep 2026 | 88.9% | 6 |
| 24 Sep 2026 | 89.2% | 6 |
| 23 Sep 2026 | 91.4% | 6 |
| 22 Sep 2026 | 93.2% | 6 |
| 21 Sep 2026 | 95.7% | 7 |
| 20 Sep 2026 | 97.4% | 7 |
| 19 Sep 2026 | 97.6% | 7 |