Reservoir · Pennsylvania · United States · USACE CWMS
Youghiogheny River Lake, PA
102.3% full
Capacity
184.16 hm³
Volume stored
188 hm³
Coordinates
39.798°N, 79.366°W
Last updated
2026-07-30
Current fill
102.3%vs 7 days ago
-0.1%losing
vs 1 year ago
-2.3%year-over-year
7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — 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: 2026-07-30.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 39.798, -79.366 · Open in Google Maps
About Youghiogheny River Lake, PA
As of July 30, 2026, Youghiogheny River Lake, PA is filled to 102.3% of its total capacity, holding roughly 188 hm³ of water out of a maximum 184 hm³. At this level the reservoir is effectively full.
Over the most recent week on record the fill level has held broadly steady (-0.1 pts), and it is 2.3 points below its level on the same date a year earlier.
Across the readings we hold for Youghiogheny River Lake, PA — 327 data points between July 31, 2021 and July 30, 2026 — the level has ranged from a low of 36.5% (December 18, 2021) to a high of 105.0% (April 2, 2026). On average the reservoir is fullest around April and at its lowest around December.
It is operated by USACE primarily for multiple purposes. It lies within the Pennsylvania basin at 39.798°N, 79.366°W.
Key facts
- Current fill level
- 102.3%
- Water stored
- 188 hm³
- Total capacity
- 184 hm³
- 7-day change
- ▼ 0.1 pts
- Year-on-year
- ▼ 2.3 pts
- Primary use
- Multipurpose
- River basin
- Pennsylvania
- Operator
- USACE
- Coordinates
- 39.798°N, 79.366°W
- Last updated
- July 30, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 30 Jul 2026 | 102.3% | 188 |
| 29 Jul 2026 | 102.4% | 189 |
| 28 Jul 2026 | 102.8% | 189 |
| 27 Jul 2026 | 103.2% | 190 |
| 26 Jul 2026 | 103.6% | 191 |
| 25 Jul 2026 | 104.1% | 192 |
| 24 Jul 2026 | 104.3% | 192 |
| 23 Jul 2026 | 104.0% | 192 |
| 22 Jul 2026 | 102.8% | 189 |
| 21 Jul 2026 | 101.7% | 187 |
| 20 Jul 2026 | 101.7% | 187 |
| 19 Jul 2026 | 101.7% | 187 |
Frequently asked questions
What is the current water level of Youghiogheny River Lake, PA?
As of July 30, 2026, Youghiogheny River Lake, PA is at 102.3% of its capacity, holding approximately 188 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Youghiogheny River Lake, PA reservoir full?
Youghiogheny River Lake, PA is essentially full, sitting at 102.3% of capacity as of July 30, 2026.
Is the water level at Youghiogheny River Lake, PA rising or falling?
The level at Youghiogheny River Lake, PA has been broadly stable over the latest week on record (-0.1 points).
How much water can Youghiogheny River Lake, PA hold?
Youghiogheny River Lake, PA has a total capacity of 184 hm³.
Where is Youghiogheny River Lake, PA reservoir located?
Youghiogheny River Lake, PA is located in Pennsylvania, United States, within the Pennsylvania basin (coordinates 39.798°N, 79.366°W).
What is Youghiogheny River Lake, PA used for?
Youghiogheny River Lake, PA is used primarily for multiple purposes, and is managed by USACE.