This report describes environmental enhancement or restoration approaches that may be applicable for mitigating impingement and entrainment impacts associated with cooling water intake structures (CWISs). Environmental enhancement approaches (e.g., habitat restoration, restoration of fish passage, fishstocking) are often used to restore aquatic habitats or biological resources that have been affected by such activities as hydropower production, water supply system construction and use, mining, road construction, environmental contaminant cleanup, and commercial development.