Concrete Arch Bridges for Supporting Steel Conduits of Mingtan Pumped Storage Project
For the Mingtan Pumped Storage Project of an installed capacity of 1600 MW, two parallel waterways have been constructed for conveying flows between the upper reservoir and the lower reservoir...

Modeling of the Ventilation for Emplacement Drift Re-Entry and Rock Drying
Different ventilation scenarios were analyzed for a hot repository with a 114 kw/Acre heat load, to determine the time required to cool a drift to the point where the temperature of the...

Flow Visualization and Relative Permeability Measurements in Rough-Walled Fractures
Two-phase (gas-liquid) flow experiments were done in a natural rock fracture and transparent replicas of natural fractures. Liquid was injected at constant volume flow rate, and gas was...

Water Quality Model of the Chicago Waterway
In 1992, the Metropolitan Water Reclamation District of Greater Chicago (the District) developed a QUAL2E water quality model of the Chicago waterway and Upper Illinois waterway. The model...

Simulation of Water Quality Processes in the Chicago Waterway and Upper Illinois River Systems
The U.S. Environmental Protection Agency QUAL2E-UNCAS (QUAL2EU) computer program was used to simulate the water quality processes in the Chicago waterway and Upper Illinois River Systems....

Utilization of Roadway Crossings as BMP's in Urban Areas
Roadway crossings of natural waterways in the urban setting can be used as Best Management Practices (BMP's) by retrofitting existing outlet structures. Pollutant removal is contingent...

Managing a Bridge Program for Scour
Recent events have focused national attention on the need for States to implement a managed program to determine the scour vulnerability of each of its bridges. Since 85% of all bridges...

Effects of Estuarine Habitat Quality on Juvenile Salmon: I. Chemical Contaminant Exposure and II. Altered Growth and Immune Function
Some urban estuaries on the west coast of the US are important habitats for several species of juvenile salmon and receive multiple stresses from human activities. Because these estuaries...

Sedimentation Patterns of a Restored Tidal Wetland
Coyote Slough Lagoon was flooded as part of a local mitigation project in 1986. The design of the restored marsh included peninsulas to break up the local fetch and resulted in the development...

Environmental Impacts of Small Boat Navigation: Vessel/Sediment Interactions and Management Implications
It is the intent of this review and discussions to provide state-of-the-art information on one aspect of the issue of environmental impacts associated with small boat navigation, that...

The Napeague Dunes, Long Island, NY
The Napeague Dunes of eastern Long Island, N.Y., consist of a series of three migrating parabolic dunes. The area presently occupied by this system was formerly a 2.7 Km wide inlet following...

Origin, Development and Stratigraphy of Tidal Deltas at Hurricane Pass, Pinellas County, Florida—An Example of Modern Tidal Delta Architecture from a Microtidal Coast
Sequential analysis of aerial photographs taken between 1926 and 1990 have helped to define the morphological development of the tidal deltas at Hurricane Pass, and along with other historical...

Defining the Safe Navigable Depth of the Calcasieu River Ship Channel, Louisiana
Field research conducted in the Calcasieu River Ship Channel in Louisiana is described and some results of correlations between the echo sounder records and density measurements are presented....

The Coastal Data Information Program—A Successful Federal, State and University Cooperation
The Coastal Data Information Program (CDIP) is a cooperative effort managed jointly by the U.S. Army Engineers, Waterways Experiment Station and the State of California, Department of...

Bank Erosion at the Aransas National Wildlife Refuge
The Aransas National Wildlife Refuge has been experiencing problems with the erosion along the banks of the Gulf Intracoastal Waterway. In order to prevent future erosion it is necessary...

Tidal Inlet Closure Effects on Three Mexican Coastal Lagoons
Coastal lagoons frequently evolve toward total isolation behind sediment barriers. We studied the effects of natural tidal inlet closures on three Mexican coastal lagoons with different...

Morphology of the Wadden Sea Natural Processes and Human Interference
The Wadden Sea can be subdivided in three morphodynamic units: the tidal flats, the inlets and the barrier islands. The deeply incised tidal inlets are the most active of these units;...

Coastal Planning in British Columbia: Problems and Solutions
British Columbia is the most western Canadian province encompassing 27,000 km of deeply incised coastline and myriad islands and waterways. The mix of varied and often conflicting uses...

Research on the Buffer Effect of Canals
In Japan, canals for transport have been developed on the coast of urban areas. Recently, it has become evident that those areas are under chaotic conditions due to the decline of the...

Change of Estuarine Processes Due to Sea Level Rise and Navigation Channel Improvement
To investigate the relationship between the improvement of navigation channels and the change of estuarine environment under various sea level rise scenarios, numerical study was performed...

 

 

 

 

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