1953 --- Meridian Bridge Debt Retired, Tolls End 1955 --- Yankton Adopts City Manager Form Of Government • KYNT Goes On The Air 1957 --- Gavins Point Dam Opens • Yankton Named ‘All-American City’ 1958 --- New Yankton High School Opens On Mulberry Street 1961 --- Yankton Celebrates Dakota Territory Centennial • Gavins Point National Fish Hatchery Opens • Yankton County Historical Society Organizes 1965 --- Chan Gurney Municipal Airport Dedicated 1968 --- New Sacred Heart Church Opens 1969 --- Mount Marty College Goes Co-Ed • Mount Marty High School Closes 1970 --- Yankton Mall Opens • Yankton College Coaching Legend Carl Youngworth Named The First ‘Citizen Of The Year’ 1971 --- The New Dakota Territorial Museum Opens 1973 --- New Yankton Community Library Opens 1974 --- Yankton State Hospital Renamed South Dakota Human Services Center • Yankton High School Girls’ Athletic Teams Dubbed ‘Gazelles’ 1978 --- Missouri River From Yankton To Ponca Designated As ‘National Recreational River’ 1979 --- Human Services Center Celebrates Its Centennial 1981 --- New Sacred Heart Hospital Opens 1982 --- Merger Forms Yankton Medical Clinic 1983 --- Fire Guts WNAX Downtown Building 1984 --- Yankton College Closes • First Riverboat Days Held 1985 --- Former Sen. Chan Gurney Dies 1988 --- Mount Marty College’s Laddie E. Cimpl Arena Opens • Yankton Federal Prison Camp Opens 1989 --- Yankton Celebrates State Centennial 1991 --- Charlie Battery Soldiers Engage In Persian Gulf War 1993 --- St. Benedict Catholic Church Opens • Fox Run Golf Course Opens 1996 --- Yankton High School/Summit Activities Center Opens • New Human Services Center Opens 2000 --- Gurney Seed And Nursery Leaves Yankton 2001 --- Area Responds To 9/11 Attacks 2004 --- Yankton Celebrates Lewis And Clark Bicentennial 2005 --- Charlie Battery Soldiers Killed In Iraq War 2006 --- Thousands Welcome Charlie Battery Home From?Iraq 2007 --- Yankton’s Rockin’ Ribfest Debuts 2008 --- Discovery Bridge Dedicated; Meridian Bridge Is Officially Closed 2010 --- Matt Michels Elected Lieutenant Governor 2011 --- Yankton Celebrates Its 150th Anniversary • The Missouri River Flood Of 2011 • Meridian Bridge Re-Opens As A Pedestrian Walkway 2014 --- Rockin’ Ribfest Moves From Downtown District to Memorial Park • Wagon Train Celebrating The 125th Anniversary Of South Dakota Kicks Off In Yankton 2015 --- Meridian Plaza Debuts • Yankton Hosts World Archery Youth Championships 10 – Yankton, South Dakota