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<p>This study examines flood vulnerability disparities among mobile home parks (MHPs) across eastern Nebraska's urban–rural continuum, focusing on three counties severely impacted by March 2019 floods. Using building-level analysis and network assessment metrics, we found significant variations in vulnerability profiles. Rural Dodge County MHPs exhibited the highest risk, with 50.1% of buildings located in high-risk flood zones and none protected by levees, compared to 18.1% in urban Douglas County and none in suburban Sarpy County. Network analysis revealed an inverse correlation between flood exposure and network connectivity within parks, suggesting compounded evacuation challenges for higher-risk MHPs. Despite elevated risk, Dodge County saw 17.6% increase in MHP buildings between 2018–2024, exceeding growth rates in Douglas (7.6%) and Sarpy (6.0%) Counties. These patterns reflect differential infrastructure investment and governance approaches across jurisdictions. During the March 2019 floods, Douglas County's robust levee system successfully protected its MHPs, while several of Sarpy County’s MHPs experienced damage due to levee failures, and Dodge County suffered significant inundation due to lack of comparable levee protection. Our findings highlight how infrastructure investment decisions, regulatory frameworks, and socioeconomic factors create distinct vulnerability profiles requiring targeted policy interventions.</p>

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Spatial disparities in flood risk exposure: a building-level analysis of mobile home parks in eastern Nebraska

  • 期刊论文

  • 发表日期：

    2025年6月2日

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  • Jesse Andrews,
  • Jiyoung Lee,
  • Jenny B. Mason,
  • Risha Singh,
  • Jahangeer Jahangeer,
  • Yunwoo Nam,
  • Yuhan Jiang,
  • Zhenghong Tang

摘要

This study examines flood vulnerability disparities among mobile home parks (MHPs) across eastern Nebraska's urban–rural continuum, focusing on three counties severely impacted by March 2019 floods. Using building-level analysis and network assessment metrics, we found significant variations in vulnerability profiles. Rural Dodge County MHPs exhibited the highest risk, with 50.1% of buildings located in high-risk flood zones and none protected by levees, compared to 18.1% in urban Douglas County and none in suburban Sarpy County. Network analysis revealed an inverse correlation between flood exposure and network connectivity within parks, suggesting compounded evacuation challenges for higher-risk MHPs. Despite elevated risk, Dodge County saw 17.6% increase in MHP buildings between 2018–2024, exceeding growth rates in Douglas (7.6%) and Sarpy (6.0%) Counties. These patterns reflect differential infrastructure investment and governance approaches across jurisdictions. During the March 2019 floods, Douglas County's robust levee system successfully protected its MHPs, while several of Sarpy County’s MHPs experienced damage due to levee failures, and Dodge County suffered significant inundation due to lack of comparable levee protection. Our findings highlight how infrastructure investment decisions, regulatory frameworks, and socioeconomic factors create distinct vulnerability profiles requiring targeted policy interventions.