1960's (19)
- Palisades, May 11, 1969, Daniel Shelton, inflatable raft over the dam
- Iowa City, January 23, 1969, Michael Hullihan, oarless boat over dam
- July 27, 1968, Bellevue, Lee Roy, Janice Pickel & Kim Kieffer (all children, parents survive), boating
- Manchester, July 18, 1968, Bill Tibbott, seining for fish
- July 4, 1968, Earl Stone & Victor Arenschield, fishing boat over Lock & Dam 15, Davenport, Scott County
- June 1, 1967, Clarence, Clarence Jr. & Bonnie Hafley while fishing at Lake Darling State Park dam
- Lynnville, February 12, 1967, Shelby Crawford, slipped on ice and into water flowing over the dam
- Iowa City, June 16, 1965, John Neuzil, attempted to retrieve beach balls trapped in the boil
- Littleton, June 9, 1963, boaters Merrill Broshar & Lloyd McAllister
- Ames, May 3, 1963, David Barnhart, floating with friends
- Palisades, May 20, 1962, Gary Nolte, fell from dam while netting fish for a group of children
- Linn Grove, April 24, 1962, John Rex, fishing boat capsized
- Des Moines, May 30, 1960, Elaine Long, boating
1950's (11)
- Littleton, June 7, 1959, swimmer Casper C. Cook
- Ottumwa, March 19, 1959, Dennis Johnson & Charles Slaton, drowned in high, swirling waters below dam
- Ottumwa, April 7, 1958, LaVerne Robert Porter, 10, slipped off a dam abutment
- August 13, 1957, Clarence Rau, wading at Linksville Lock & Dam #9
- Adel, December 21, 1956, Donald Greenslade, through thin ice
- Mason City, July 8, 1955, Norman Pheil & Enoch Kaloplostos, swimming
- Cedar Falls, July 7, 1954, Lyell Corwin, fell in while fishing
- Des Moines, June 15, 1952, Mary Arzetta Jones, wading
- Waucoma, June 10, 1950, Bernard Bouska, swimming below the dam
