Why are some dams in Michigan a problem?

All dams in Michigan impact natural resources and the communities where you find them. Those impacts can be both positive or negative, most often a combination of both. When the negative impacts begin to outweigh the positives, the dam becomes a problem. Additionally, there are numerous dams that are, or soon will be, beyond their design life. Whether a decision is made to remove or rebuild a particular dam depends on specific criteria for each situation. However, the number of those dams requiring our attention continues to increase.