Abstract
This paper documents failure causes and modes of streambanks at bridge crossings, anddemonstrates the use of soil bioengineering in streambank stabilization at bridge crossings. In astreambank soil bioengineering project, 22 bridge and stream crossings in hot climate areas of theUnited States were visited and assessed. It was rarely observed that streams were in dynamicequilibrium if bridge structures severely interfered with the streams. Numerous streambank failureswere observed and documented. One of the primary problems was the treatment of the edgebetween the built and natural environment. Failure sites almost always have rigid treatments suchas concrete riprap on the boundary between the bridge structure and the stream. Such a fixed, rigidtreatment could not allow any self-adjustment of stream dimension or profile, which in turn resulted infailures on the bridge structures. Soil bioengineering offers an alternative to soften the edgebetween built and natural environment. In hot climate areas, there are challenges in using thistechnology. This paper further describes assessed streambank failures, analyses of streambankfailure causes and modes, hot climate issues, the design process and implemented result of astreambank soil bioengineering project, and monitoring of the built streambank project.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call