A "Low Risk" designation means the U.S. Army Corps of Engineers (USACE) considers the dam to be in good condition and well-maintained. They believe it poses minimal risk to downstream life and property, even under extreme events. This classification stems from rigorous risk assessments considering various potential hazards.

What does low risk mean? 

• Low Risk Doesn't Mean No Risk: While these dams have a low probability of failure and limited potential consequences, it's essential to understand that no dam is entirely risk-free.
• Rigorous Assessment Process: The "Low Risk" classification is based on thorough assessments that consider various potential hazards, including earthquakes, extreme rainfall, and dam deterioration.
• Continuous Monitoring and Maintenance: Even though these dams are considered low risk, the USACE remains committed to their ongoing safety. This includes regular inspections, data collection, and proactive maintenance to address any potential issues promptly.
• Transparency and Communication: The USACE is committed to transparency with the public about dam safety. Sharing this information helps communities understand the risks, however small, and be better prepared for emergencies.

A "Moderate Risk" designation from USACE means a dam is well-maintained and unlikely to fail under normal circumstances. However, specific extreme events could lead to failure. This classification prompts further investigation and potential risk reduction strategies.

What does "Moderate" mean?

• Risk is not Imminent: A "Moderate" risk doesn't mean failure is imminent or even likely. It highlights vulnerabilities that require attention.
• Ongoing Monitoring and Mitigation: USACE is actively studying these dams and will take appropriate risk reduction measures based on their findings.
• Public Awareness: Communicating these risks helps communities understand potential hazards and prepare for emergencies.

A "High Risk" designation indicates a dam currently operates as intended, but a significant potential for failure exists under specific extreme conditions. This risk level necessitates immediate attention and prioritizes the dam for risk reduction measures.

What does high risk mean?
 

• Urgency for Risk Reduction: A "High Risk" classification demands immediate attention and prioritizes the dam for risk reduction measures, such as structural improvements, operational changes, or early warning systems.
• Public Safety is Paramount: The USACE is actively working to mitigate the risks associated with these dams to ensure the safety of downstream communities.
• Community Awareness and Preparedness: It's crucial for residents living downstream of these dams to be aware of the potential hazards, understand evacuation routes, and participate in emergency preparedness drills.