- Playtime Roald Tweet 2:54
This is Roald Tweet on Rock Island. Between 1933 and 1939, the entire Upper Mississippi from St. Louis to St. Paul changed personalities, courtesy of the United States Army Corps of Engineers. Until 1933, the Mississippi was a wild river, coming and going as it pleased, creating islands and washing them away, teasing steamboats. In that year a dam and two locks were completed between Davenport and Rock Island—a massive structure looking like it was fresh off a solidarity poster.
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