Drainage practices in humid regions historically focused on straightening and deepening
natural channels to increase their hydraulic capacity and minimize upstream flooding. In …

The environmental effects of flood control channel modifications such as clearing and
snagging, straightening, enlargement, and/or paving can be quite severe in some cases …

Agricultural drainage ditches are headwater streams that have been created or modified to
drain excess water from agricultural fields. Historically, the design and management of these …

Streams and rivers serve many purposes, including water supply, wildlife habitat, energy
generation, transportation and recreation. A stream is a dynamic, complex system that …

Presented herein is a categorization of commonly applied approaches to natural channel
design. Approaches have been categorized as analog, empirical, or analytical. Methods and …

A gricultural drainage ditches are headwater streams that have been constructed or
channelized for draining excess water from agricultural fields. The headwaters of many …

The natural hydrologic processes that create and maintain the diversity of aquatic and
riparian habitats along the World's streams and rivers have been profoundly altered by …

Agricultural drainage ditches are a common occurrence throughout the Minnesota River
Valley. Current ditch construction utilizes a trapezoidal form engineered to contain both …

Urban development takes a heavy toll on creeks, streams and rivers throughout the nation. A
broadening landscape of impervious surfaces-parking lots, roads and rooftops-causes …

The extensive development of surface and subsurface drainage systems to facilitate
agricultural production throughout North America has significantly altered the hydrology of …