Evaluation and Assessment of Environmentally Sensitive Stream Bank Protection Measures (2016) / Chapter Skim
Currently Skimming:
Pages 5-13
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 5... ...
5 1.1 Scope and Research Objectives 1.1.1 Background Vegetation is the most natural method for protecting stream banks and it provides ecosystem services such as habitat, water quality protection, and aesthetic benefits. Vegetation can effectively protect a bank in two ways.
|
From page 6... ...
6 Evaluation and Assessment of Environmentally Sensitive Stream Bank Protection Measures regarding performance of these measures when subjected to flood event magnitudes typical of DOT designs for stream bank protection. Very little information is available regarding the durability and service life expectations as well as the maintenance requirements of these measures.
|
From page 7... ...
Introduction and Research Approach 7 1.2 Research Approach Successfully achieving the objectives outlined above required the integration of multiple disciplines to produce practical guidelines that can be reliably and consistently implemented by practitioners. The following sections present an overview of the research team's approach to this research.
|
From page 8... ...
8 Evaluation and Assessment of Environmentally Sensitive Stream Bank Protection Measures In summary, the research approach was designed to take advantage of the data that was obtained from a comprehensive field investigation program, but also offered the singular opportunity for growing and testing critical components of biotechnical treatments in a controlled laboratory setting. This methodology provided a quantitative, repeatable measure of vegetation condition and viability for biotechnical treatments to support inspection activities and maintenance decisions.
|
From page 9... ...
Introduction and Research Approach 9 1.3.2 Task 2 -- Survey of Relevant Agencies In consultation with the NCHRP project panel the research team developed, distributed, and evaluated a survey of agencies that have implemented existing guidelines for environmentally sensitive bank protection. The survey was designed to support development of a Compendium of photographs and case studies and provide information to assist in identifying field sites.
|
From page 10... ...
10 Evaluation and Assessment of Environmentally Sensitive Stream Bank Protection Measures and geotechnical conditions surrounding the sites. Recent advances in understanding the performance of nonliving bank-protection materials and structures have included laboratory flume tests that allow greater control and data acquisition than for field sites, but few of these experiments involved plant materials.
|
From page 11... ...
Introduction and Research Approach 11 5. After each flow, the treatment will be examined for any damage to its various components (e.g., loss of vegetation, movement of rock, or soil loss)
|
From page 12... ...
12 Evaluation and Assessment of Environmentally Sensitive Stream Bank Protection Measures could be accommodated under this research project. Various treatments were carefully evaluated from the perspective of having wide applicability across the nation, as well as practical issues of: • Constructability, • Physical testing requirements, • Quantitative measurements of key hydraulic variables, and • Monitoring the condition of each component before testing and after each test flow event.
|
From page 13... ...
Introduction and Research Approach 13 was obtained during the field investigations (Task 6)
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.