Reservoir · Oregon · United States · BOR RISE
Gerber Reservoir and Dam
41.7% full
Capacity
113.75 hm³
Volume stored
48 hm³
Coordinates
42.201°N, 121.130°W
Last updated
2026-08-12
Current fill
41.7%vs 7 days ago
-2.2%losing
vs 1 year ago
-22.8%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: 2026-08-12.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.201, -121.130 · Open in Google Maps
About Gerber Reservoir and Dam
As of August 12, 2026, Gerber Reservoir and Dam is filled to 41.7% of its total capacity, holding roughly 48 hm³ of water out of a maximum 114 hm³. At this level the reservoir is within its normal operating range.
Over the most recent week on record the fill level has fallen by 2.2 percentage points, and it is 22.8 points below its level on the same date a year earlier.
Across the readings we hold for Gerber Reservoir and Dam — 1818 data points between August 15, 2021 and August 12, 2026 — the level has ranged from a low of 1.3% (November 22, 2022) to a high of 96.3% (May 2, 2025). On average the reservoir is fullest around May and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Oregon basin at 42.201°N, 121.130°W.
Key facts
- Current fill level
- 41.7%
- Water stored
- 48 hm³
- Total capacity
- 114 hm³
- 7-day change
- ▼ 2.2 pts
- Year-on-year
- ▼ 22.8 pts
- Primary use
- Multipurpose
- River basin
- Oregon
- Operator
- BOR
- Coordinates
- 42.201°N, 121.130°W
- Last updated
- August 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Aug 2026 | 41.7% | 47 |
| 11 Aug 2026 | 42.1% | 48 |
| 10 Aug 2026 | 42.9% | 49 |
| 9 Aug 2026 | 42.8% | 49 |
| 8 Aug 2026 | 43.0% | 49 |
| 7 Aug 2026 | 43.3% | 49 |
| 6 Aug 2026 | 43.6% | 50 |
| 5 Aug 2026 | 43.9% | 50 |
| 4 Aug 2026 | 44.2% | 50 |
| 2 Aug 2026 | 44.7% | 51 |
| 31 Jul 2026 | 45.3% | 52 |
| 30 Jul 2026 | 45.6% | 52 |
Frequently asked questions
What is the current water level of Gerber Reservoir and Dam?
As of August 12, 2026, Gerber Reservoir and Dam is at 41.7% of its capacity, holding approximately 48 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Gerber Reservoir and Dam reservoir full?
No. As of August 12, 2026, Gerber Reservoir and Dam is within its normal operating range at 41.7% of its capacity, so it is not full.
Is the water level at Gerber Reservoir and Dam rising or falling?
The level at Gerber Reservoir and Dam is falling — it dropped 2.2 percentage points over the latest week on record.
How much water can Gerber Reservoir and Dam hold?
Gerber Reservoir and Dam has a total capacity of 114 hm³.
Where is Gerber Reservoir and Dam reservoir located?
Gerber Reservoir and Dam is located in Oregon, United States, within the Oregon basin (coordinates 42.201°N, 121.130°W).
What is Gerber Reservoir and Dam used for?
Gerber Reservoir and Dam is used primarily for multiple purposes, and is managed by BOR.