Now showing items 3201-3220 of 3360

    • Financial Planning Model and Its Application 

      David H. Moreau (American Society of Civil Engineers, 1986)
      This paper reports on the development of a financial planning model for publicly‐owned water and sewer utilities. It was developed for and used by the Orange Water and Sewer Authority, which serves Chapel Hill and Carrboro, ...
    • Risk Information for Floodplain Management 

      L. Douglas James; Brad Hall (American Society of Civil Engineers, 1986)
      The United States began structural flood control in the 1930s and added complementary nonstructural measures in the 1960s. Nevertheless, national flood damage totals continue to increase. Reversal of this trend will require ...
    • Petroleum Recovery Operations in an Urban Area 

      Darrel J. Kost; Walter Parish (American Society of Civil Engineers, 1986)
      The storage and handling of large quantities of petroleum products in a “sole source aquifer” area such as Nassau and Suffolk Counties of Long Island, New York, has resulted in numerous groundwater contamination problems. ...
    • Size and Location of Detention Storage 

      Wesley P. James; J. Frank Bell; Deborah L. Leslie (American Society of Civil Engineers, 1987)
      Basinwide planning, including channel improvements, is essential to prevent misapplication of detention storage. The concept of reducing the peak outflow from an on‐site detention pond to the predevelopment peak discharge ...
    • General Impacts of Aswan High Dam 

      Scot E. Smith (American Society of Civil Engineers, 1986)
      The Aswan High Dam in Egypt has been the focus of considerable attention with respect to its impact upon the environment. Prior to its completion in 1971, critics of the project voiced concern about the potential problems ...
    • Storm Sewer Design Sensitivity Analysis Using ILSD‐2 Model 

      M. Nouh (American Society of Civil Engineers, 1987)
      The effects of the time distribution of design rainfall, the method of overland flow hydrograph generation, and the technique of flow routing through sewers on the least-cost storm sewer system design generated by the ...
    • Drought and Power Production 

      Richard N. Palmer; Jay R. Lund (American Society of Civil Engineers, 1986)
      The impacts of drought upon electric power generation are reviewed, as well as factors influencing utility susceptibility to drought and the management challenges of water shortages. The paper summarizes current drought ...
    • Reservoir Management in Texas 

      Ralph A. Wurbs (American Society of Civil Engineers, 1987)
      An overview of surface water management in Texas is presented focusing on operation of existing reservoirs. Rapid population and economic growth combined with depleting groundwater reserves are resulting in everincreasing ...
    • Optimal Testing Frequency for Domestic Water Meters 

      Richard R. Noss; Gregory J. Newman; James W. Male (American Society of Civil Engineers, 1987)
      A procedure is developed to determine the optimal testing frequency for 5/8‐in. meters. The objective is to minimize the cost to the utility, including the cost of the meter testing program itself and the cost (revenue ...
    • Decision Support System for Local Water Management 

      Roy W. Koch; Roderick L. Allen (American Society of Civil Engineers, 1986)
      Although technologically advanced methods have been used to manage large water resource systems, there is both a need and an opportunity for application of similar techniques at the level of the individual user. With a ...
    • Complexity in Columbia River Systems Modeling 

      Richard N. Palmer; Julia L. Cohan (American Society of Civil Engineers, 1986)
      This paper reviews the problem of model complexity in evaluating the tradeoffs between fish and power production on the Columbia River. Characterizations of model complexity are presented and appropriate levels of model ...
    • Evolution of PMP Cooperative Studies 

      Eugene A. Stallings; A. G. Cudworth; E. M. Hansen; W. A. Styner (American Society of Civil Engineers, 1986)
      A brief prospective of hydrologic analysis used for determination of spillway sizing is presented. The paepr describes the procedures for determining a reasonable upper limit of flood potential for a given drainage basin. ...
    • Efficient Aquifer Simulation in Complex Systems 

      Joaquín Andreu; Andrés Sahuquillo (American Society of Civil Engineers, 1987)
      An approach for simulation of groundwater linear flow is presented. If the eigenvalues technique is used to solve the flow equations, the eigenvectors provide an orthonormal basis. In this basis a state vector for the ...
    • Minimizing the Cost of Coping with Droughts: Springfield, Illinois 

      Benedykt Dziegielewski; James E. Crews (American Society of Civil Engineers, 1986)
      Past drought experiences show that the failure of water supply systems to meet demands during droughts can be reasonably described in terms of the tangible monetary expenditures and economic losses related to emergency ...
    • Dredged‐Material Disposal System Capacity Expansion 

      David T. Ford (American Society of Civil Engineers, 1986)
      An ensemble of analytical tools is used to identify capacity expansion alternatives for the Delaware River dredged‐material disposal system. Characteristics of the river and riparian area are stored and analyzed with a ...
    • TVA'S Use of Computers in Water Resource Management 

      Bevan W. Brown; Robert A. Shelton (American Society of Civil Engineers, 1986)
      The Tennessee Valley Authority (TVA) is currently making significant use of computers and associated models for decision support in managing and operating their large system of reservoirs and power facilities. Current uses ...
    • Dynamic Programming in Hydropower Scheduling 

      R. B. Allen; S. G. Bridgeman (American Society of Civil Engineers, 1986)
      A dynamic programming optimization technique has been applied to three case studies involving hydropower scheduling. Each involved the analysis of an operating strategy for a different time perspective, i.e., instantaneous, ...
    • Using Computers to Manage Irrigation Systems 

      Gerald W. Buchleiter; Dale F. Heermann (American Society of Civil Engineers, 1986)
      Microcomputers can improve the management of center pivot sprinkler systems by providing recommendations for irrigation scheduling and selection of the most economical pump combinations. When linked with radio telemetry ...
    • Computerized Decision Support Systems for Water Managers 

      John W. Labadie; Charles H. Sullivan (American Society of Civil Engineers, 1986)
      A compendium of several important articles on the application of computerized decision support systems (DSS) in water resources management is presented. The articles cover software development, hardware selection, data ...