Catalog Record

Data and Report from S&T Project 19266: Side Channel Evolution and Design: Achieving Sustainable Habitat for Aquatic Species Recovery

Side channels increase the hydraulic and geomorphic complexity of river systems, which provides aquatic habitat by reducing velocity and increasing shoreline length and cover. Constructed side channels are a common habitat restoration technique to improve ecological value, but design guidance is limited. This study analyzes naturally formed side channels to improve the efficacy of constructed projects. We used historical aerial imagery of the Middle Rio Grande, the Sacramento River, and the Trinity River to better understand how side channels form, how they evolve, and how long they persist. We identified and classified side channels between 1935 and 2012 with a time series of at least five different years for each river. Classification types consider if the side channel was likely created by erosion or deposition through processes such as lateral channel migration or channel avulsion. Evaluating spatial and temporal trends for each river highlights relationships between geomorphic processes and side channel abundance and longevity.
Generation Effort S&T Project 19266: Side Channel Evolution and Design: Achieving Sustainable Habitat for Aquatic Species Recovery
Location Western US
Themes Environmental
Tags Side Channels, Habitat Restoration, Geomorphic Evolution
Reclamation Project
Reclamation Program Science and Technology Program

Location Information

Location Name Western US
Location Description The 17 western states of Washington, Oregon, Idaho, Montana, North Dakota, South Dakota, Nebraska, Wyoming, California, Nevada, Utah, Colorado, Kansas, Oklahoma, Texas, New Mexico, and Arizona..
Location Tags Reclamation Domain
Location Parent
State(s) Arizona, California, Colorado, Idaho, Kansas, Montana, North Dakota, Nebraska, New Mexico, Nevada, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wyoming
Unified Region(s) Missouri Basin, Arkansas-Rio Grande-Texas-Gulf, Upper Colorado Basin, Lower Colorado Basin, Columbia-Pacific Northwest, California-Great Basin
Timezone MT
Elevation [ N/A ]
Vertical Datum NAVD88
Coordinates (lat, long) See Location Details
Horizontal Datum WGS84