Summary
This private earth dam stands at 35 feet tall with a hydraulic height of 33 feet and a length of 430 feet. It has a storage capacity of 23 acre-feet and a maximum discharge of 80 cubic feet per second, making it a crucial structure for managing water resources in the area.
Located in Alanthus Grove, Nodaway County, Missouri, the dam is classified as having a low hazard potential with a moderate risk assessment. Despite not being regulated or inspected by the state, the dam plays a vital role in controlling water flow and protecting the surrounding area from potential flooding. With a spillway width of 8 feet and no outlet gates, the structure is designed to handle controlled and uncontrolled spill events effectively.
For water resource and climate enthusiasts, the David Nelson Structure Dam represents a significant engineering feat in managing water flow and maintaining grade stability in the region. Its construction and design demonstrate the importance of earth dams in safeguarding communities against potential water-related hazards, showcasing the critical role that infrastructure plays in water resource management and climate resilience.
Year Completed |
1980 |
Dam Length |
430 |
Dam Height |
34 |
River Or Stream |
TR-MUNKRAS BRANCH-GRAND RIVER |
Primary Dam Type |
Earth |
Surface Area |
8 |
Hydraulic Height |
33 |
Drainage Area |
192 |
Nid Storage |
23 |
Structural Height |
35 |
Outlet Gates |
None |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
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.
David Nelson Structure Dam