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The purpose of this study was to analyze the December 1993 breach at Grays Harbor, WA, and assess the threat to the Federal Navigation Project had the breach not been filled the following fall. The study was conducted by quantifying evolution of breach morphology; numerically simulating the ocean wave and water level conditions producing the current through such a breach, including investigation of wide-area implications for the current in Grays Harbor; and numerical modeling breach evolution. Available data on the breach evolution were analyzed with a Geographic Information System. The width of the breach and erosion of the adjacent shoreline are quantified from aerial photographs. Shoreline position and bottom configurations in the vicinity of the now-closed breach are the basis of numerical modeling of wave- and tide-driven currents. Estimates are made of the wave and current climate at South Beach, Pt. Chehalis, and in Half Moon Bay under the assumption of a breach at the jetty. Hydrodynamics for various alternatives of further erosion of the breach are modeled to evaluate flow patterns in a developed breach condition. Sediment transport and evolution of the breach are modeled to assess the potential for continued breach growth and longterm assessment of breach stability. Study products are intended to assist the U.S. Army Engineer District, Seattle, in developing a long-term management plan for protecting Federal navigation project features.
This report examines the use of these entities in nearly all cases of corruption. It builds upon case law, interviews with investigators, corporate registries and financial institutions and a 'mystery shopping' exercise to provide evidence of this criminal practice.
Existing coastal management and defense approaches are not well suited to meet the challenges of climate change and related uncertanities. Professionals in this field need a more dynamic, systematic and multidisciplinary approach. Written by an international group of experts, Coastal Risk Management in a Changing Climate provides innovative, multidisciplinary best practices for mitigating the effects of climate change on coastal structures. Based on the Theseus program, the book includes eight study sites across Europe, with specific attention to the most vulnerable coastal environments such as deltas, estuaries and wetlands, where many large cities and industrial areas are located. Integrated risk assessment tools for considering the effects of climate change and related uncertainties Presents latest insights on coastal engineering defenses Provides integrated guidelines for setting up optimal mitigation measures Provides directly applicable tools for the design of mitigation measures Highlights socio-economic perspectives in coastal mitigation
The book assembles the latest research on new design techniques in water supplies using desalinated seawater. The authors examine the diverse issues related to the intakes and outfalls of these facilities. They clarify how and why these key components of the facilities impact the cost of operation and subsequently the cost of water supplied to the consumers. The book consists of contributed articles from a number of experts in the field who presented their findings at the "Desalination Intakes and Outfalls" workshop held at King Abdullah University of Science and Technology (KAUST) in Saudi Arabia in October, 2013. The book integrates coverage relevant to a wide variety of researchers and professionals in the general fields of environmental engineering and sustainable development.
This manual provides guidance for planning, layout, and design of small boat harbor projects. These projects include boat basins, boat ramps, and channels. Small boats are classified as recreational craft, fishing boats, or other small commercial craft with lengths less than 100 ft. The goal of a good design is to provide a safe, efficient, and economical project for small vessels, with consideration to social and environmental factors.