South Dakota Unveils Ambitious Plan to Replace Nation's Oldest Prison
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- September 25, 2025
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South Dakota is on the cusp of a significant transformation in its criminal justice infrastructure, as it prepares to bid farewell to its aging state penitentiary in Sioux Falls, a facility with a storied history stretching back 140 years. This venerable institution, once recognized as the nation's oldest continually operating state prison, is finally giving way to a modern, state-of-the-art replacement, signaling a new era for incarceration in the Mount Rushmore State.
The decision to replace the 1881-built penitentiary comes after years of wrestling with a deteriorating structure that has become increasingly expensive and challenging to maintain.
Officials have painted a stark picture of a facility "failing" and "deteriorating," citing the exorbitant costs associated with patching up a relic of the past. The current prison, designed for a maximum of 900 inmates, often struggles with capacity issues and operational inefficiencies inherent in its antiquated design.
The ambitious plan calls for a sprawling new facility estimated to cost a staggering $200 million.
It’s designed to house up to 1,500 men, a substantial increase that has ignited a spirited debate among state legislators and criminal justice advocates. While proponents argue that the new prison will usher in enhanced safety for both staff and inmates, provide better opportunities for rehabilitation programs, and ultimately reduce long-term operational costs, critics voice concerns over the massive price tag and the rationale behind such a significant expansion in capacity, particularly as other states witness declining prison populations.
Proponents of the new facility, including Governor Kristi Noem, emphasize that modernizing the prison system is not just about replacing old bricks and mortar, but about improving outcomes.
A newer facility can be designed with modern security features, better vocational training areas, and dedicated spaces for mental health and substance abuse treatment – crucial elements largely missing or severely limited in the current cramped and outdated structure. The expectation is that a purpose-built environment will allow for more efficient staffing and a safer environment for everyone within its walls.
However, the project isn't without its detractors.
Some lawmakers question whether increasing the prison population capacity by 600 beds aligns with progressive criminal justice policies. They argue that the state should focus more on prevention and alternative sentencing to reduce incarceration rates, rather than building larger facilities that might implicitly encourage a "build it and they will come" approach.
These concerns highlight a deeper philosophical divide on the future direction of South Dakota’s criminal justice system.
The current Sioux Falls penitentiary has a turbulent past, marked by numerous riots, including significant disturbances in 1993 and 2006, often linked to overcrowding and poor conditions.
Its legacy is a testament to the challenges of managing a correctional facility that has long outlived its practical lifespan. The proposed timeline sees construction commencing in 2024, with the grand opening anticipated by 2029. Officials are currently evaluating two potential sites for the new prison, one near Sioux Falls and another near Pierre, indicating a strategic decision that will shape the state's correctional landscape for decades to come.
As South Dakota moves forward, this project represents more than just a new building; it’s a re-evaluation of how the state approaches incarceration, rehabilitation, and the fundamental question of justice in the 21st century.
The debates surrounding its cost and capacity underscore the complexity of balancing public safety with fiscal responsibility and evolving societal norms.
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