Summary
Built in 1937 by the WPA, this earth dam stands at 24 feet high and stretches 560 feet long, with a storage capacity of 1200 acre-feet. The dam's purpose is not specified, but it is equipped with a vertical lift outlet gate and an uncontrolled spillway 78 feet wide to manage a maximum discharge of 3300 cubic feet per second.
Despite being rated as having low hazard potential and not yet assessed for condition, Pierpont is subject to state inspection, permitting, and enforcement. The dam's risk assessment is moderate, indicating a potential for issues that require management measures. The St. Paul District of the USACE oversees Pierpont, ensuring its safety and functionality for the surrounding community. With its historical significance and crucial role in water management, Pierpont is a noteworthy site for water resource and climate enthusiasts to explore and study.
Year Completed |
1937 |
Dam Length |
560 |
Dam Height |
24 |
River Or Stream |
MUD CREEK |
Primary Dam Type |
Earth |
Hydraulic Height |
24 |
Drainage Area |
5 |
Nid Storage |
1200 |
Outlet Gates |
Vertical Lift |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
24 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
James R At Columbia Sd
|
268cfs |
James R Near Stratford Sd
|
409cfs |
Elm R At Westport Sd
|
12cfs |
Foot Creek Near Aberdeen
|
0cfs |
James River At Nd-Sd State Line
|
194cfs |
Big Sioux River Nr Florence Sd
|
5cfs |
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.
Pierpont