There are many positives and negatives of keeping the dams, but there are also many positives and negatives of tearing them down. People and Fish were affected by dams, but the dams made jobs for people. So are dams a good or a bad thing? First, what are dams? A dam is basically a river, but they stick a wall in the middle of it to stop the water flow. There are 75,371 dams that are above 3 feet high in the United States. Dams are a common part of landscaping in the United States. Most communities were built on the banks of rivers, so dams could change the course of the water. When they build dams there is a less chance of flooding because there isn’t as much water. Dams slow down the water flow of rivers. Second, the positives for building