Benefits, Applications, and Opportunities of Natural Infrastructure Proceedings of a Workshop—in Brief (2022) / Chapter Skim
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Benefits, Applications, and Opportunities of Natural Infrastructure: Proceedings of a Workshop - in Brief
Benefits, Applications, and Opportunities of Natural Infrastructure: Proceedings of a Workshop - in Brief
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On May 10–11, 2022, the Resilient Planning committee chair Hussam Mahmoud (Colorado America program at the National Academies of Sciences, State University) outlined the workshop goal to explore Engineering, and Medicine (the National Academies)
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ing Nature Based Solutions to Tackle Climate Change and 5 In addition to "natural infrastructure," Galloway called attention to Enhance Resilience." The executive order can be found at https:// related concepts mentioned in the International Guidelines for Natural www.federalregister.gov/documents/2022/04/27/2022-09138/ and Nature-Based Features for Flood Risk Management, including natstrengthening-the-nations-forests-communities-and-local-economies. ural and nature-based features, green infrastructure, and building with 3 For more information on EWN, see https://ewn.erdc.dren.mil/.
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What these projects have in include lack of understanding within agencies, lack of common, he said, citing Resources for Future, is they local interest to provide pressure to implement NNBF, "rely on services produced by ecosystems, often utilizing and silos that impede more comprehensive funding and natural landscapes to minimize flood damages, purify implementation. Examples of NNBF in use include on and store water, and reduce urban stormwater runoff."9 the Mississippi River, the Yolo Bypass in California, and Donahue said infrastructure improvements are not Sponge Cities in China.
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The cases model experiments show the potential of red mangroves included modeling techniques and pilot projects to re- as effective NNBF solutions for coastal protection, with create habitat features, a project at Dogtooth Bend on the ongoing tests to assess the impacts from the laboratory Mississippi River, and environmental pool management to the field. She commented that her students are excited to modify dam operations.
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noted Working with communities takes time, she reminded the his group argued the importance of considering the group. Processes of social change are slow and funding is interaction between all natural infrastructure benefits, difficult.
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, she sees EWN as a way Hendricks concluded that equity in infrastructure to leverage natural and economic processes to deliver includes procedural, distributive, and restorative multiple benefits. Challenges to wider use within USACE justice; the built environment must be recognized as include limits of the federal standard; lack of multia continuation of social circumstances; infrastructure benefit approaches, budgeting, and related issues; dynamics impact risk exposure and ecological and public knowledge gaps and inability to measure benefits health outcomes; and participation and partnerships are equitably; top-down and internally driven approaches; needed for a more healthy, just, and resilient society.
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Theme 2: Breakout Sessions In considering physical, ecological, social, and economic THEME 3: MAKING TIMELY PROGRESS -- NEEDS FOR DESCRIPTIVE elements when implementing natural infrastructure, METHODS, MANUALS, AND STANDARDS Todd Bridges reported his group recognized the As planning committee member Brian Bledsoe (UGA) need for legal and financial innovations, in addition noted, a limitation to wider use of natural infrastructure to engineering.
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While standards for learning-by-doing, recognizing that flexibility is often traditional engineering approaches also have limitations, required and that competent engineers will innovate he commented that uncertainties related to performance, by applying and improving upon best practices and cost, and other factors make engineering using natural principles. infrastructure more difficult in building a business case.
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evolving; case studies exist for nature-based structures Ellingwood suggested giving the move from prescription in coastal and fluvial systems, although maybe not to performance "time to work." As an analogy, enough information on failures; learning-by-doing performance-based standards to deal with seismic events and adaptive management require flexibility; and a lack became accepted over several decades. Thus, natural of uniform standards or guidelines.
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.29 The study documented some expectations set for natural infrastructure are the multiple values and interests proliferating across not set for conventional infrastructure, for example the states; erosion is the primary factor guiding most the expectations related to environmental justice. Dave stabilization structure choices; armored shorelines are Hampton's group suggested managing uncertainty could almost always held to a lesser standard than naturebe cast as an opportunity, with shorter time horizons based living shorelines under approval processes; and for better predictions and addressing stakeholder connectivity in armored areas, rather than ecological concerns.
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If a community requests a in natural infrastructure through these opportunities, levee, for example, that is what the agency delivers rather Murdock called attention to challenges to more easily than proactively suggest other solutions. Recognizing and accurately value natural infrastructure to capture the importance of local cost concerns, Ritter offered two the full suite of ecosystem service benefits.
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"Without increased flexibility on increased flood risk management and a mandate to include natural and In response to a question about strengthening the state– nature-base features or hybrid infrastructure, USACE federal interface, Jones said state resilience officers can risks becoming a post-disaster response agency and not help coordinate multiple agencies and jurisdictions. a pre-disaster mitigation agency," he warned.
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Robert Prager reported his group urged adapting existing policy to FIGURE 3 Day 2 visual wrap-up. include natural infrastructure, developing an equal SOURCE: Brett Wylie, Workshop Presentation, May 11, 2022.
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PLANNING COMMITTEE The Committee on Benefits, Applications and Opportunities of Natural Infrastructure: A Workshop: HUSSAM NABIL MAHMOUD (Chair) , Colorado State University; BRIAN PAUL BLEDSOE, University of Georgia; EILEEN SHADER, American Rivers; HANS LOUIS-CHARLES, Virginia Commonwealth University; JOSEPH DAVID WAGGONNER III, Waggonner & Ball; OLUPONMILE OLONILUA, Texas Southern University; and PAUL L
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