Reservoir · New York · United States · USACE CWMS
Mount Morris Dam
1.5% full
Capacity
92.21 hm³
Volume stored
1 hm³
Coordinates
42.733°N, 77.907°W
Last updated
2026-05-27
Current fill
1.5%vs 7 days ago
-0.4%losing
vs 1 year ago
-98.5%year-over-year
7-day trend
→stable
Data source: USACE CWMS — US Army Corps of Engineers — daily reservoir storage volume. Design capacity is unavailable for this site, so fill % is estimated against the 5-year maximum storage and may overstate fullness. Last reading: 2026-05-27.
Catchment Weather
Past 30 days + 14-day forecast · Open-Meteo
Satellite imagery: Esri, Maxar, Earthstar Geographics. Map: Esri, HERE, Garmin, © OpenStreetMap contributors. 42.733, -77.907 · Open in Google Maps
About Mount Morris Dam
As of May 27, 2026, Mount Morris Dam is filled to 1.5% of its total capacity, holding roughly 1 hm³ of water out of a maximum 92 hm³. At this level the reservoir is critically low.
Over the most recent week on record the fill level has held broadly steady (-0.4 pts), and it is 98.5 points below its level on the same date a year earlier.
Across the readings we hold for Mount Morris Dam — 170 data points between June 22, 2021 and May 27, 2026 — the level has ranged from a low of 0.0% (June 22, 2021) to a high of 100.0% (April 6, 2026). On average the reservoir is fullest around April and at its lowest around June.
It is operated by USACE primarily for multiple purposes. It lies within the New York basin at 42.733°N, 77.907°W.
Key facts
- Current fill level
- 1.5%
- Water stored
- 1 hm³
- Total capacity
- 92 hm³
- 7-day change
- ▼ 0.4 pts
- Year-on-year
- ▼ 98.5 pts
- Primary use
- Multipurpose
- River basin
- New York
- Operator
- USACE
- Coordinates
- 42.733°N, 77.907°W
- Last updated
- May 27, 2026
Recent readings
| Date | Fill level | Volume (hm³) |
|---|---|---|
| 27 May 2026 | 1.5% | 1 |
| 26 May 2026 | 1.9% | 2 |
| 25 May 2026 | 1.5% | 1 |
| 24 May 2026 | 1.4% | 1 |
| 23 May 2026 | 0.0% | 0 |
| 22 May 2026 | 0.0% | 0 |
| 21 May 2026 | 0.0% | 0 |
| 20 May 2026 | 0.0% | 0 |
| 19 May 2026 | 0.0% | 0 |
| 18 May 2026 | 0.0% | 0 |
| 17 May 2026 | 4.6% | 4 |
| 16 May 2026 | 11.5% | 11 |
Frequently asked questions
What is the current water level of Mount Morris Dam?
As of May 27, 2026, Mount Morris Dam is at 1.5% of its capacity, holding approximately 1 hm³ of water, according to USACE CWMS (US Army Corps of Engineers) data.
Is Mount Morris Dam reservoir full?
No. As of May 27, 2026, Mount Morris Dam is critically low at 1.5% of its capacity, so it is not full.
Is the water level at Mount Morris Dam rising or falling?
The level at Mount Morris Dam has been broadly stable over the latest week on record (-0.4 points).
How much water can Mount Morris Dam hold?
Mount Morris Dam has a total capacity of 92 hm³.
Where is Mount Morris Dam reservoir located?
Mount Morris Dam is located in New York, United States, within the New York basin (coordinates 42.733°N, 77.907°W).
What is Mount Morris Dam used for?
Mount Morris Dam is used primarily for multiple purposes, and is managed by USACE.