“…Interesting cases are described by Suedel et al (2021), Cohn et al (2021), andSella et al (2021). Briefly, the Madeira River Navigation and Improvement Project provides a unique opportunity to incorporate NBSs into the built environment of one of the last free-flowing mega-rivers to promote sustainable communities and water resource infrastructure (Suedel et al, 2021). In this manner, the project seeks to create a safe, reliable, and sustainable navigation channel in the Madeira River through modeling, beneficial reuse of sediment, and use of local materials.…”