Reservoir · Oregon · United States · BOR RISE
Agate Reservoir
Agate Reservoir and Dam
14.2% full
Capacity
5.9 hm³
Volume stored
1 hm³
Coordinates
42.415°N, 122.772°W
Last updated
2026-09-30
Current fill
14.2%vs 7 days ago
-0.2%losing
vs 1 year ago
-7.5%year-over-year
7-day trend
→stable
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. 42.415, -122.772 · Open in Google Maps
About Agate Reservoir
As of September 30, 2026, Agate Reservoir is filled to 14.2% of its total capacity, holding roughly 1 hm³ of water out of a maximum 6 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-0.2 pts), and it is 7.5 points below its level on the same date a year earlier.
Across the readings we hold for Agate Reservoir — 2187 data points between October 2, 2021 and September 30, 2026 — the level has ranged from a low of 9.3% (October 8, 2021) to a high of 100.2% (March 16, 2025). On average the reservoir is fullest around April and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Oregon basin at 42.415°N, 122.772°W.
Key facts
- Current fill level
- 14.2%
- Water stored
- 1 hm³
- Total capacity
- 6 hm³
- 7-day change
- ▼ 0.2 pts
- Year-on-year
- ▼ 7.5 pts
- Primary use
- Multipurpose
- River basin
- Oregon
- Operator
- BOR
- Coordinates
- 42.415°N, 122.772°W
- Last updated
- September 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Sep 2026 | 14.2% | 1 |
| 29 Sep 2026 | 14.2% | 1 |
| 28 Sep 2026 | 14.2% | 1 |
| 27 Sep 2026 | 14.4% | 1 |
| 26 Sep 2026 | 14.4% | 1 |
| 25 Sep 2026 | 14.4% | 1 |
| 24 Sep 2026 | 14.4% | 1 |
| 23 Sep 2026 | 14.4% | 1 |
| 22 Sep 2026 | 14.4% | 1 |
| 21 Sep 2026 | 14.4% | 1 |
| 20 Sep 2026 | 14.4% | 1 |
| 19 Sep 2026 | 14.4% | 1 |