Summary
Designed by USDA NRCS and completed in 1984, this dam serves the primary purpose of flood risk reduction along Ajies Creek. With a height of 52 feet and a hydraulic height of 46.6 feet, it has a capacity of 95 acre-feet and a surface area of 83.2 acres.
Despite its important role in mitigating flood risks, Ajies Dam Structure 2a has been assessed as being in poor condition with a high hazard potential. The dam's spillway, with a width of 70 feet, is uncontrolled, and the last inspection conducted in April 2021 indicated the need for improvement. With a moderate risk rating, there is a pressing need for risk management measures to be implemented to ensure the safety and effectiveness of this critical infrastructure.
Given the dam's location in a high-risk area and its significance for flood control, it is imperative that the relevant state regulatory agencies, such as PREPA, prioritize regular inspections, maintenance, and any necessary repairs to enhance its resilience against potential hazards. Climate enthusiasts and water resource experts should closely monitor the condition and management of Ajies Dam Structure 2a to safeguard the surrounding community and ecosystem from the impacts of extreme weather events and climate change.
Year Completed |
1984 |
Dam Length |
302 |
Dam Height |
52 |
River Or Stream |
AJIES CREEK |
Primary Dam Type |
Earth |
Surface Area |
83.2 |
Hydraulic Height |
46.6 |
Drainage Area |
0.23 |
Nid Storage |
95 |
Structural Height |
50 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
52 |
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.
Ajies Dam Structure 2a