The Spring of 2011 brought heavy rainfall and snowmelt throughout the Midwest, resulting in record flow rates and flood stages on the Lower Mississippi River from Cairo, Illinois to the Gulf of Mexico. In many locations, the flood crested at levels above those ...

This paper describes a case study on the design, construction and performance of an underground soil - cement - bentonite barrier wall, which was used to isolate river water seeping into the American River levee and its foundation soils.

The use of time domain reflectometry (TDR) to monitor movement in embankments and slopes is an emerging technology. TDR was originally developed for the telecommunication industry to locate breaks in cables. TDR is a time dependant pulsing electronic signal ...