The Columbus Dispatch recently published an article regarding the safety of Ohio dams, including the dam on Grand Lake St. Marys. From the article:
Right now, a resort community is being built on the 174-year-old earthen dam at Grand Lake St. Marys, Ohio’s largest state-owned lake. There’s already a hotel, a condo community, houses and a big restaurant built on the West Bank dam. A new concrete walkway is nearly done, anchored into the dam.
It’ll be lovely. And it is risky. Engineers say that building on a dam is a bad idea.