Projects with the following attributes are generally considered most harmonious with river ecosystems:
- Those made of native materials, e.g., wood, rock, vegetation, and so forth that are similar in type, composition or species to those in the vicinity of the project.
- Those using construction materials that are natural in appearance, e.g., logs with bark intact as opposed to being peeled and whole naturally weathered rocks as opposed to split or fractured (i.e., riprap).
- Those with materials placed in locations, positions, and quantities mimicking natural...