Abstract

Current and projected climate change in the Minnesota Lake Superior Coastal Area indicates an increase in frequency and intensity of extreme rainfall. One key outcome of this change is a subsequent potential increase in stormwater runoff, a concern exacerbated by the region’s shallow, often clay soils and exposed bedrock, along with highly impervious urban surfaces. This situation, coupled with public perception of climate change that is increasingly inclusive of severe weather, highlights an opportunity to apply green infrastructure to the challenge of stormwater management, referred to as green stormwater infrastructure. In addition to coordinated public action at local, state, and national levels, there is a role for the private landowner to participate in this form of climate adaptation. Private citizens have an opportunity to both protect their home and property while contributing to overall stormwater management for the community in which they live. Focus group research was conducted to better understand outreach and involve local residents in the creation of a tool to assist private green stormwater infrastructure efforts. Results of the focus group sessions were analyzed, and key themes emerged from the data to guide this process and support private home/landowner action. It is recommended that a fifth domain be added to the typology for public and private roles in climate adaptation, i.e. private adaptation for public and private benefit.

Highlights

  • Over the weekend of 15–17 June 2018, strong storms hit the Western Lake Superior region

  • These concerns for the Lake Superior Watershed seem to be congruent with respondents’ desire to Participants indicated a wide range of motivations for their willingness to act in the future, with the greatest motivation being the ability to contribute to community stormwater management efforts

  • While this study explicitly sought participants interested and willing to participate in stormwater management, it is hoped that the lessons learned from outreach to this engaged group will help to build momentum toward broad-based private homeowner engagement in green stormwater management across the entire region

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Summary

Introduction

Over the weekend of 15–17 June 2018, strong storms hit the Western Lake Superior region. One rain gauge in the area recorded 6.75 inches of rain in just over four hours [1]. The outcome of such an intense and large rainfall was flooding. The Associated Press noted on 19 June that the flooding was responsible for three deaths and left widespread damage throughout the region, with Houghton, Michigan experiencing significant loss [2]. Images of buckled roads from Houghton were reminiscent of a 2012 rain event in Duluth, Minnesota, when a severe storm dropped 5–10 inches of rain overnight on already saturated soils, causing flash flooding and extensive damage (see Figure 1)

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