Mount Morris Dam dam
Mount Morris Dam
Mount Morris Dam, located in Livingston, New York, is a concrete multi-arch structure completed in 1952 by the US Army Corps of Engineers to primarily reduce flood risks along the Genesee River. Standing at a height of 215 feet with a hydraulic height of 249 feet, the dam has a maximum storage capacity of 408,000 acre-feet and a drainage area of 1,080 square miles. Despite being categorized as a high hazard potential structure, the dam is equipped with an uncontrolled spillway and nine slide gates for flood control.
A risk assessment conducted in 2016 identified potential failure scenarios such as exceedance of the dam's capacity, internal concrete failure, and water seepage into the rock foundation. In case of a catastrophic failure, surrounding areas like Mount Morris, Avon, and Rochester could experience significant flooding with depths ranging from 10 to 35 feet. To mitigate these risks, the USACE continuously works on risk reduction measures including regular inspections, emergency preparedness planning, and stability analyses to address seepage and concrete integrity issues.
Overall, Mount Morris Dam plays a crucial role in safeguarding downstream communities from devastating floods, with ongoing efforts by the US Army Corps of Engineers to ensure the dam's structural integrity and enhance emergency response capabilities. The dam serves as a vital infrastructure for flood control and highlights the importance of proactive risk management in protecting lives and property in the event of extreme weather events.
Dam data reference
Condition Assessment
- Satisfactory
- No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
- Fair
- No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action.
- Poor
- A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency.
- Unsatisfactory
- A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
- Not Rated
- The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Hazard Potential Classification
- High
- Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
- Significant
- Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environmental damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
- Low
- Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
- Undetermined
- Dams for which a downstream hazard potential has not been designated or is not provided.
Plan around the weather
Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day temperature & precipitation
Daily temperatures, snow, and rain projected over the next two weeks.
Nearby streamflow gauges
USGS streamgauges around Mount Morris Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Genesee River Near Mount Morris Ny | 3,110 cfs | → |
| Keshequa Cr @ Craig Colony @ Sonyea Ny | 8 cfs | → |
| Oatka Creek At Warsaw Ny | 81 cfs | → |
| Conesus Creek Near Lakeville | 55 cfs | → |
| Genesee River At Portageville Ny | 2,260 cfs | → |
| Genesee River At Avon Ny | 3,440 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Mount Morris Dam.
Track Mount Morris Dam in the Snoflo app
Save this dam as a favorite and get the local NOAA / yr.no forecast plus regional flow context wherever you are.
About Mount Morris Dam
Where does the data for Mount Morris Dam come from?
Structural and regulatory data come from the U.S. Army Corps of Engineers' National Inventory of Dams (NID). Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.
How often is the report updated?
NID structural data refreshes annually as the Corps publishes updated assessments. The weather forecast refreshes throughout the day.
What does the High hazard rating mean?
The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.
What's "% of normal"?
The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).
Can I get alerts when storage crosses a threshold?
Yes -- alerts are managed in the Snoflo iOS app. Favorite this dam, set a threshold, and you'll get a push the moment conditions cross.
Other water bodies near here
Snoflo-tracked reservoirs and dams within driving distance of Mount Morris Dam.