(1) Route a storm causing a full spillway (spillway at design capacity) through the dam without a dam failure. Is there potential loss of human life

(1) Route a storm causing a full spillway (spillway at design capacity) through the dam without a dam failure. Is there potential loss of human life from this flood? Yes (2) Route the same storm causing a full spillway through the dam with an overtopping dam failure. Is there potential loss of human life from this flood? (3) Is the potential loss of human life greater from the flood with an overtopping dam failure than from the flood without a dam failure? Yes (4) Can a spillway size be found in which the potential loss of human life from the routed store is no greater with dam failure than from the routed storm without a dam failure?