Reservoir · Washington · United States · BOR RISE
Conconully Lake and Salmon Lake Dam
29.7% full
Capacity
19.37 hm³
Volume stored
6 hm³
Coordinates
48.559°N, 119.745°W
Last updated
2026-08-12
Current fill
29.7%vs 7 days ago
-1.8%losing
vs 1 year ago
-14.9%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: 2026-08-12.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 48.559, -119.745 · Open in Google Maps
About Conconully Lake and Salmon Lake Dam
As of August 12, 2026, Conconully Lake and Salmon Lake Dam is filled to 29.7% of its total capacity, holding roughly 6 hm³ of water out of a maximum 19 hm³. At this level the reservoir is low.
Over the most recent week on record the fill level has fallen by 1.8 percentage points, and it is 14.9 points below its level on the same date a year earlier.
Across the readings we hold for Conconully Lake and Salmon Lake Dam — 2186 data points between August 15, 2021 and August 12, 2026 — the level has ranged from a low of 19.9% (October 10, 2021) to a high of 54.6% (June 10, 2023). On average the reservoir is fullest around June and at its lowest around October.
It is operated by BOR primarily for multiple purposes. It lies within the Washington basin at 48.559°N, 119.745°W.
Key facts
- Current fill level
- 29.7%
- Water stored
- 6 hm³
- Total capacity
- 19 hm³
- 7-day change
- ▼ 1.8 pts
- Year-on-year
- ▼ 14.9 pts
- Primary use
- Multipurpose
- River basin
- Washington
- Operator
- BOR
- Coordinates
- 48.559°N, 119.745°W
- Last updated
- August 12, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 12 Aug 2026 | 29.7% | 6 |
| 11 Aug 2026 | 30.0% | 6 |
| 10 Aug 2026 | 30.3% | 6 |
| 8 Aug 2026 | 30.8% | 6 |
| 7 Aug 2026 | 31.0% | 6 |
| 6 Aug 2026 | 31.3% | 6 |
| 5 Aug 2026 | 31.5% | 6 |
| 4 Aug 2026 | 31.9% | 6 |
| 3 Aug 2026 | 32.1% | 6 |
| 2 Aug 2026 | 32.4% | 6 |
| 1 Aug 2026 | 32.7% | 6 |
| 31 Jul 2026 | 32.9% | 6 |
Frequently asked questions
What is the current water level of Conconully Lake and Salmon Lake Dam?
As of August 12, 2026, Conconully Lake and Salmon Lake Dam is at 29.7% of its capacity, holding approximately 6 hm³ of water, according to BOR RISE (US Bureau of Reclamation) data.
Is Conconully Lake and Salmon Lake Dam reservoir full?
No. As of August 12, 2026, Conconully Lake and Salmon Lake Dam is low at 29.7% of its capacity, so it is not full.
Is the water level at Conconully Lake and Salmon Lake Dam rising or falling?
The level at Conconully Lake and Salmon Lake Dam is falling — it dropped 1.8 percentage points over the latest week on record.
How much water can Conconully Lake and Salmon Lake Dam hold?
Conconully Lake and Salmon Lake Dam has a total capacity of 19 hm³.
Where is Conconully Lake and Salmon Lake Dam reservoir located?
Conconully Lake and Salmon Lake Dam is located in Washington, United States, within the Washington basin (coordinates 48.559°N, 119.745°W).
What is Conconully Lake and Salmon Lake Dam used for?
Conconully Lake and Salmon Lake Dam is used primarily for multiple purposes, and is managed by BOR.