Summary
With a height of 26 feet and a length of 260 feet, the dam serves multiple purposes including fire protection, stock watering, and small fish pond creation. Its primary source agency is Iowa, and it is situated on TR- North Chequest Creek.
The dam has a low hazard potential and is currently rated as "Not Rated" in terms of condition assessment. It has a normal storage capacity of 17 acre-feet and a maximum storage of 30 acre-feet. The dam's risk assessment is moderate (3), indicating a need for ongoing monitoring and management measures to ensure its safety and functionality in the face of potential hazards.
Despite not being regulated or inspected by the state, Johnson Dam plays a crucial role in water resource management in the area. Its presence on the North Chequest Creek provides valuable water storage and supply for fire protection and livestock needs. Enthusiasts interested in water resource management and climate resilience will find Johnson Dam to be an intriguing case study of a privately owned structure contributing to local water security and environmental sustainability.
Year Completed |
1996 |
Dam Length |
260 |
Dam Height |
26 |
River Or Stream |
TR- NORTH CHEQUEST CREEK |
Primary Dam Type |
Earth |
Surface Area |
3 |
Drainage Area |
0.07 |
Nid Storage |
30 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
26 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Fox River At Bloomfield
|
7cfs |
Des Moines River At Ottumwa
|
1090cfs |
Des Moines River At Keosauqua
|
1800cfs |
Cedar Creek Near Oakland Mills
|
10cfs |
Chariton River Near Moulton
|
34cfs |
North Skunk River Near Sigourney
|
97cfs |
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.
Johnson Dam