London Linkage
Although it measures just 1.8 km, the Limehouse Link tunnel in London is both a complex engineering project and a gateway to urban renewal. The link is a $350 million highway tunnel connecting...
California Water Issues?Bay-Delta Hearings?Impacts on State Water Project
The State Water Resources Control Board's impending Decision 1630 is described along with its potentially substantial impacts on California's water supplies. Department of Water Resources...
Issues in Balancing Environmental Costs and Benefits in Water Resources Planning
Water projects differ in their physical and economic characteristics and their environmental impacts. Many environmental impacts are addressed through project design and these associated...
Establishing a Drought Reserve Policy for the Monterey Peninsula Water Management District
The Monterey Peninsula Water Management District was created by the California Legislature in 1977 for the purpose of developing an integrated management program for all of the water resources...
Simulation of Buoyant, Miscible Liquid Plumes in Heterogeneous Aquifers
Laboratory experiments have been conducted in a sand tank with a single heterogeneity into which NaNO3 is continuously injected. From samples along, across and over the depth of the tank...
Regulatory Constraints on Vegetation Control in Channels, A Case Study of the Santa Ynez River, Santa Barbara County, California
The Santa Barbara County Flood Control and Water Conservation District has encountered difficulties in obtaining permits from state and federal agencies for vegetation control activities...
Regulatory Obstacles to Emergency Response, A Case Study of the Paint Fire, June 1990, Santa Barbara, California
After the Paint Fire of 1990, the Santa Barbara County Flood Control and Water Conservation District took several measures to prevent damage due to mudslides and floods from the burned...
Adaptive Control of Unavoidable Hazardous Releases
This paper presents a procedure for the adaptive control of hazardous releases of toxic substances. In particular, the control strategy is aimed at deliberate releases from man-made storage...
Simulation of Rapid Reservoir Drawdown for Flood Control, Cowlitz Falls Project
The Cowlitz Falls Dam is a run-of-river project, currently under construction on the Cowlitz River in Washington State, 23 Km downstream from the town of Randle. The requirements for reservoir...
Optimization Modeling for Sedimentation in Alluvial Rivers Considering Uncertainties
A nonlinear optimization model is formulated for determining optimal reservoir releases to minimize channel bed aggradation and degradation in downstream rivers. The model is based upon...
Fundamental Principles of Tidal Wetland Restoration
Recognition of the vital role of tidal wetlands for sustaining migratory bird life, for indigenous animal habitat, and for the fishery of contiguous waters has stimulated efforts to restore...
Is There a Future for Desalting in Meeting California's Water Needs?
This paper addresses the potential role of desalting reclaimed, brackish, and sea waters for use in meeting California's water needs. Brief descriptions of sources and costs are included....
Economic Costs to the State Water Project of Environmental Protection and Mitigation Measures
The State Water Project stores water in the Sierra Nevada for subsequent diversion from the Bay and Delta for use by millions of Californians. Project construction and operation have caused...
Designing Self-Cleaning Wet Wells for Wastewater Pumping
Guidelines for the design of self-cleaning wet wells for variable speed pumps are given. The progress of research on the design of wet wells for constant speed pumps, including submersible...
Nonlinear Flow in Embankments
For a large number of water resources projects, the Dupuit-Forchheimer (D-F) assumption is considered a viable design criterion and, consequently, Darcy law is used to determine the locus...
Reducing the Potential Downstream Impacts of a Dam Failure
The dam safety regulations imposed by the individual states in the United States vary widely and provide inconsistent protection for the citizens of different states. The proximity of...
Dune Profiles Before and After Storm Events in Coastal Massachusetts
It is well known that short-term changes in dune profiles can have a major effect on the severity of storm damage to coastal areas. In light of this, the standardized methodology developed...
Refined Modelling of Water Quality Constituents in a Semi-Enclosed Coastal Wetland Basin
Details are given of the refinements to a numerical model to improve the representation of the advective transport of water quality constituents. The higher order accurate scheme adopted...
Development of San Gorgonio Pass Groundwater Flow Model I. Model Calibration
A groundwater flow model is being developed for use in management of a planned groundwater storage and recovery program for the Beaumont Storage Unit of the San Gorgonio Pass groundwater...
Engineering Geomorphology
Engineering geomorphology is the application of geologic and geomorphic principles to the solution of river engineering problems. Development of a process-based understanding of a problem...
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