Megaproject Management Tool
Program management oversight is an administration innovation in the water and wastewater treatment field. The method is increasingly being used when a public entity takes on a project...
The Heavy Duty Geogrid Wall
The geogrid reinforced soil retaining wall was a key component in reconstructing a small hydroelectric plant situated at the center of Cascade Dam in Michigan. It was necessary that the...
Getting the VOCs Out of Well Water
Two technologies are successfully removing volatile organic chemicals (VOCs) from groundwater supplies. Not surprisingly, since the application is new, many of the designs were not optimized...
Special Topics in Foundations
This book contains papers presented at a session related to various theoretical and experimental developments on foundation analysis, design and construction. The papers were written by...
Measured Performance of Shallow Foundations
The seven papers included in this book document the field performance of shallow foundations. Five of these papers present foundation settlements caused by the compression of the subsoil,...
Arctic Coastal Processes and Slope Protection Design
Cold regions present special challenges for civil engineers. The papers in this book address arctic coastal processes and slope protection design. The first part of the book focuses on...
Geosynthetics for Soil Improvement
Geosynthetics have had a tremendous impact on various aspects of soil improvement. In a number of situations which previously had not been technically or economically feasible, geosynthetics...
Soil Properties Evaluation from Centrifugal Models and Field Performance
The performance of geotechnical projects is dependent upon the appropriateness of the design theory to the boundary conditions, and the characterization of the soil properties used in...
The Changing Federal/State Relationship in Water Resources: An SCS Perspective
Since 1935, the Soil Conservation Service (SCS) has worked directly with state and local agencies, and individual landowners, to conserve and develop the Nation's soil and...
Changing Federal/State Water Resources Roles
As federal agencies such as Reclamation undertake change on national and regional levels, the priorities and programs of state and local groups may, in turn, be affected. Increased coordination...
The Nebraska Chemigation Cat?1987 in Review
The Nebraska Chemigation Act was signed into law in April of 1986 with requirements effective January 1, 1987. The Act is one of the most comprehensive pieces of chemigation legislation...
Chemigation Backflow Prevention Assemblies
Chemigation with sprinkler irrigation systems is widely used throughout the United States. One potential environmental hazard of this practice is the point source water contamination due...
Advanced Chemigation Systems for Environmental Safety and Groundwater Protection
A multifunction irrigation system has been developed which utilizes a separate dynamic in-canopy nozzle system for chemical application. Testing the system with a lithium tracer on four...
Potassium Fertigation in Drip Irrigated Peppers in Puerto Rico
Three potassium fertigation rates (T1 = 100%, T2 = 60%, T3 = 30%) via trickle irrigation, fertilization rates (T4 = 100%, S1 = 100%, S2 = 50%, S3 = 0.0) and nonfertilization (T5 = 0.0)...
Methods of Evaluating Canal Transmission Losses
This paper discusses various methods presently used to evaluate transmission losses with particular emphasis on those methods used in the Bureau of Reclamation....
Institutional Approaches to Ground Water Management
The nature of ground water has made the management of it difficult. Lack of understanding regarding the interrelationship of ground and surface waters has sometimes resulted in unworkable...
The Economic Feasibility of Using Ethanol to Accelerate Groundwater Denitrification
A substantial buildup of nitrate in the groundwater of the eastern Sandhills region of Nebraska is projected by some planners. A groundwater carbon source such as ethanol promotes denitrification,...
Simulation of Contaminant Transport Using NMOL Technique
In this paper, a new numerical method, called Numerical Method of Lines (NMOL), is used to solve initial-boundary value problems for solute transport in soils. The simulation results are...
Effects of Oil Spills on Water Retention in Sandy Soils
This paper concerns the relationships between water and oil saturations in sandy soils. Special attention is given to an environment similar to the groundwater table and the capillary...
Trickle Irrigation of Peppers in Eastern Canada
A field study was conducted in Southern Quebec to determine the response of bell pepper plants to four irrigation treatments combined with three nitrogen fertilizer rates. The amount of...
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