List of Contributions

This seems to be conflating two separate issues that combine to reduce the effectiveness of the levees. ASLR will not cause levees to sink, but it will reduce the freeboard. Consolidation of the underlying soft sediments will cause the levees to settle. Both factors result in reduced effectiveness of ...

It is not apparent from your post whether the majority of loss is through the embankment or due to the under-seepage. Your dam seems to have both. Assuming that the under-seepage is the key factor an apron or cutoff would seem appropriate. The question you ask about low cost materials is obviously dependent ...

​The purpose of the geotextile is not specifically to prevent the sediment from erosion, though it is a part of the erosion protection system. Rip rap requires interlocking of the rocks and open pore space to dissipate the energy of the flow. If the rip rap becomes clogged with fines, it reduces its ...

​I am constantly amazed by the ability of humans to justify whatever they believe. The more complex the subject, the more the data can be manipulated to support different and sometimes opposing positions. I think we are over-analyzing and over-discussing this. I think that the question at hand should ...

This is an interesting discussion that brings to the fore the responsibility of civil engineers to protect human welfare. There is no single challenge greater for civil engineers than designing for uncertain and poorly predictable events. In most areas the probability of events is estimated together ...