Strategies for Operation of Orange County Water District Talbert Seawater Intrusion Barrier, California
Heavy groundwater production in the area of coastal Orange County accounts for large seasonal fluctuations in water levels that can cause groundwater gradients to reverse seasonally. The...
Transport Modeling of the Coastal Waters of Oahu, Hawaii
A hydrodynamic model of the coastal waters around the island of Oahu, Hawaii has been constructed to provide quantitative information on the movements and mixing of water that are to be...
The Fate of Pathogenic Organisms in Mamala Bay
The fate of enteric organisms in Mamala Bay is studied using coupled hydrodynamic and pathogen fate models. The purpose of the study is to determine the contributions of various sources...
An Integrated Coastal Management Plan for Mamala Bay
Integrated coastal management plan (1CM), articulated in the 1993 National Research Council study Managing Wastewater in Coastal Urban Areas (NRC,1993) is a new framework for coastal environmental...
The Mamala Bay Study, Oahu, Hawaii: Introduction
A comprehensive multi-disciplinary study was conducted to evaluate the effects of point and non-point source discharges on the water quality of Mamala Bay, Oahu, Hawaii. The investigation...
Comprehensive Modelling of Water Distribution Networks
An analyst of a water distribution systems must frequently contend with a host of problems with very different time scales. Traditionally, such concerns have been accommodated by having...
Moving from a Model to a Decision Support System: Salt River Project's Experience with a Reservoir Simulation System
The Salt River Project (SRP) is in the third year of a process to develop a computerized hydra-meteorological decision support system (Hydromet) that will eventually cover all aspects...
Integrated Facility Information Systems: Total Information Access
This paper will attempt to fill the void in computer information handling with regards to facility management information by providing those in the water industry with tips and suggestions...
A Knowledge Based System for the Design of Open Channels
The design of open channel facilities often calls for evaluation of a unique set of physical conditions which do not lend themselves to standard designs and textbook solutions. Consequently,...
Floodplain Management in Los Angeles County
Los Angeles is located in a geologically young area of the western United States. It is characterized by highly erodible, steep mountains and flat alluvial plains. Located in a semi-arid...
Privatization and Water Supply/Treatment Projects
Privatization is often mentioned as a way to get much needed, but difficult to finance infrastructure projects delivered for both developed and developing countries. However, the suitability...
Managing Conflicting Demands from Endangered Species: Taking the Challenge
Reservoir system managers face conflicting demands from interests such as water supply, flood control, recreation, hydropower, and environmental preservation. Historically, water resource...
Consensus as the Measure of Sustainability
Sustainable development is the Holy Grail of the `90s. Yet, its practical implications seem to be elusive. Metrics for measuring the level of sustainability are eagerly sought. It is very...
Laboratory Evaluation of a Conductivity Probe for Scour Monitoring
Laboratory tests were used to evaluate the ability of conductivity sensors to measure streambed elevation. Tests were completed on a 2.1-m probe with a resolution of about 8 cm that was...
Evaluation of Selected Instruments for Monitoring Scour at Bridges in New York
Reliable methods to monitor scour at bridges are needed to ensure public safety and minimize the cost to repair or replace vulnerable bridges. The U.S. Geological Survey, in cooperation...
Bank Protection Toe-Downs and Local Pier Scour
The zone-of-influence for pier scour may impact bank protection toe-down depths. Countermeasures were required at a site along the Salt River in Phoenix, Arizona when the alignment of...
Riprap and Concrete Armor to Prevent Pier Scour
Local scour is not a product of recent times or modern building practices. The annals of the Institute of Civil Engineers, in London, contain references throughout the 1800s and early...
Design of Guide Banks for Bridge Abutment Protection
As an alternate to designing bridge abutments to withstand the development of the full scour prism predicted by equations currently available for estimating abutment scour, FHWA recommends...
Restoration Design for Urban Streams: Anacostia River Basin, Maryland
Several stream restoration projects have been undertaken by the Army Corps of Engineers in the Maryland portion of the Anacostia River basin. Measures used include bank stabilization,...
Retrofitting an Urban Watershed for Improved Water Quality
A study was conducted for the Baltimore County, Maryland, Department of Enviromnental Protection, to assess the watershed conditions and stream channel stability of Stemmer's...
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