NPS OZAR Big Spring Historic District

Location: Van Buren, MO

Owner: National Park Service

Client: Otak

  • Rehabilitation of historic structures in the Big Springs Historic District, including 15 cabins (10,068 SF), and Dining Lodge (3,315 SF) 
  • 360 Engineering guided NPS in mechanical and plumbing system selection, evaluating cooling options, reducing fossil fuel use, and converting wood-fired heating to electric systems 
  • Mechanical and plumbing upgrades: modernized cabin and lodge heating, cooling, and plumbing systems, upgraded kitchens and bathrooms, and addressed life safety and accessibility requirements while maintaining authentic architectural character 
  • Guest experience: delivered safe, accessible, and high-quality systems that meet modern standards while respecting the historic integrity of the site 

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