Efner Davis Pond Dam dam
Efner Davis Pond Dam
Efner Davis Pond Dam, located in Delevan, New York, is a privately owned dam that serves primarily for recreational purposes. Completed in 1961, this earth dam stands at a height of 21 feet and spans a length of 200 feet, with a storage capacity of 129 acre-feet. Situated on the Limelake Outlet, the dam has a spillway width of 22 feet and a maximum discharge capacity of 106 cubic feet per second.
Despite being privately owned, the Efner Davis Pond Dam falls under state regulation and jurisdiction, with the New York State Department of Environmental Conservation overseeing permitting, inspections, and enforcement. The dam poses a significant hazard potential and is classified as having a moderate risk level. The last inspection was conducted in July 2019, with an inspection frequency of 4 years, although the condition assessment is currently listed as "Not Rated".
Water resource and climate enthusiasts interested in the infrastructure of dams, especially in relation to recreation and environmental impact, may find Efner Davis Pond Dam to be a fascinating case study. Its location in Cattaraugus County, New York, along with its design features and regulatory oversight, offer valuable insights into the management of water resources and flood control within the region. The dam's risk level and hazard potential also highlight the importance of regular inspections and maintenance to ensure public safety and environmental protection.
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 Efner Davis Pond Dam -- inflows here typically show up in storage 24-72 hours later.
| Streamgauge | Discharge | View |
|---|---|---|
| Cattaraugus Creek At Gowanda Ny | 1,010 cfs | → |
| Allegheny River At Salamanca Ny | 2,970 cfs | → |
| Genesee River At Portageville Ny | 1,720 cfs | → |
| Oatka Creek At Warsaw Ny | 203 cfs | → |
| Cazenovia Creek At Ebenezer Ny | 1,060 cfs | → |
| Tonawanda Creek At Attica Ny | 369 cfs | → |
Make a day of it
Boat launches, lakeside camping, fishing access, and other reservoirs near Efner Davis Pond Dam.
Boat launches
- Harwood Lake
- Genesee Road North Collins
- Allen Lake
- County Road 16 Allegany County
- Aldrich Street Gowanda / Jogowöde'
- Front Avenue 494, Salamanca
Track Efner Davis Pond 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 Efner Davis Pond Dam
Where does the data for Efner Davis Pond 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 Significant 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 Efner Davis Pond Dam.