downcutting

The Outer Nashville Basin in Kentucky contains untillable steep ridges and bluffs and cultivated terraces and floodplains along the meandering, downcutting Cumberland River.

Ecoregions of Kentucky (EPA) 2008

Regulation of White River flow, in combination with the downcutting of the Mississippi River for navigation (and related wing levees and cutoffs), have altered flood regimes on the lower White River, thereby increasing stream bank instability and bottomland forest mortality in Ecoregion 73f.

Ecoregions of Arkansas (EPA) 2008

The relative resistance of the bedrock in the Danville Basin has retarded downcutting in Ecoregion 45g and, as a result, the channels must slope steeply after leaving the Danville Basin.

Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA) 2008

Check dams are simple physical constructions to prevent the downcutting of runoff water in gullies.

2.1 Retaining walls 1999

Geologic uplift with minimal deformation and subsequent downcutting by streams have exposed large expanses of a variety of geologic strata, each with unique physical and chemical characteristics.

Proclamation Of Grand Staircase National Monument Clinton, Bill, 1946- 1996

And that, he said, has led to stream channels downcutting more, removing excess sediments and exposing gravels that are good for spawning fish.

North Coast Journal Comments 2009