England #4 Reservoir Report
Nearby: England No.2 Greene Gene No.2
Last Updated: December 13, 2025
England #4 is a privately owned dam located in Mellette, South Dakota, along the Roundup Creek offstream.
°F
°F
mph
Wind
%
Humidity
Summary
Constructed in 1936, this earth dam stands at a height of 23 feet and has a length of 470 feet, providing a maximum storage capacity of 96 acre-feet. Although the dam is classified as low hazard potential, its condition has not been rated, and it is subject to state regulation and inspection by the Department of Environment and Natural Resources (DENR).
Situated within the St. Paul District of the US Army Corps of Engineers, England #4 plays a vital role in water resource management in the region. Despite lacking detailed information on its purposes and design, the dam serves as a key infrastructure for flood control and water storage. With a maximum discharge capacity of 768 cubic feet per second, the dam contributes to the overall hydrological balance of the area, supporting agricultural activities and wildlife habitats.
While England #4 may not be as well-known as other dams, its significance in the local water infrastructure cannot be overlooked. As climate change continues to impact water resources, monitoring and maintaining dams like England #4 are essential for ensuring sustainable water management practices in the face of evolving environmental challenges.
Year Completed |
1936 |
Dam Length |
470 |
Dam Height |
23 |
River Or Stream |
ROUNDUP CR OFFSTREAM |
Primary Dam Type |
Earth |
Hydraulic Height |
23 |
Nid Storage |
96 |
Hazard Potential |
Low |
Nid Height |
23 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
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. Investigations and studies are necessary.
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.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams 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, environment 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.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
England #4