Aeration
A Wastewater Treatment Process
This manual summarizes current aeration practices in wastewater treatment, and includes both theoretical and practical guideline for the design and operation of such unit processes. The...
Coastal Structures and Long Term Shore Migration
Marco Island is a barrier island located on Florida's Gulf coast. Using an aerial photo time series from 1926 to 1981, shoreline migration is examined. Since shore development...
Nuclear Waste Dumping in the Ocean?Is It Over?
At the Ninth Consultative meeting of the London Dumping Convention (LDC) in September, 1985, the nations of the world voted to indefinitely continue a two year moratorium prohibiting the...
An Examination of the History and Political Processes Involved in the Reclamation of Alameda Beach, Alameda, California
This paper examines the history and political processes which transformed the eroded tidal flats of the Alameda shoreline into today's Alameda Beach. The innovation and tenacity...
Environmental Compliance Inspections
No 'after construction' inspection has ever been conducted in the Corps to ascertain 'if' or 'how well' we...
Restoring of Butcher's Slough Estuary?A Case History
A 30-acre parcel of former lumber and plywood mills occupying original estuary and salt marsh wetlands on the northern edge of Humboldt Bay, Humboldt County, north coastal California,...
Managing the Coastal Heritage of Australia
The concept of heritage spaces as a part of open-space systems has been evolving in Australia over the last 15 years. This paper overviews the main approaches that have been developed...
Building Over the Golden Gate
Charles Seim discusses the struggles of the original bridge advocates to garner support for the Golden Gate Bridge, an idea which originally met with a considerable amount of public opposition....
Investigating Failure
Failure investigations can be adversarial or cooperative, but impartiality, good engineering ethics, and professional responsibility require that the investigator begin with no premature...
Embankment Overtopping?Case Histories
Because many existing dams are subject to overtopping, there is a need to understand embankment behavior during an overtopping event. Understanding of this behavior will allow evaluation...
Measuring the Spatial Characteristics of Unsteady Pressures
This paper has reviewed current methods of determining spatially-averaged time-varying wind loads on wind tunnel building models. Some of the possibilities opened by simultaneous multi-channel...
Miramar/Alvarado Hydropower Projects
The San Diego County Water Authority (SDCWA) was organized in 1944 to provide imported water to member agencies in San Diego County. The 24 member agencies supply 90 percent of the water...
Grand Coulee Pumping/Generating Plant
The paper discusses the Grand Coulee Project history, including a brief review of landmark dates and events. Major general features of the Project are covered, including civil works, mechanical...
Efficient Small Hydroelectric Plant Operation
This paper presents a review of operating and maintenance alternatives for small scale hydroelectric plants. The cost of operating a hydro project is largely determined by decisions made...
An Historical Perspective of Failures of Civil Engineering Works
The blight of failures has smitten civil engineering works since ancient times. An examination of historic cases reveals relationships to contemporary cases that are useful in guiding...
Gabon Mineral Port Master Plan?A Case History
The integrated design of infra-structure and superstructure of marine terminals for bulk cargoes presents opportunities for innovative solutions that can produce substantial economic benefits....
The Past, Present & Future of Earthmoving Scrapers
This paper is a summary of the history and development and use of earthmoving scrapers. It will also take a look at the future of this type of machine. We'll build the discussion...
The History of Construction Management
Construction Management's origins can be traced to several forerunners, and its development, although short, has seen many changes of both practice and attitude. Its cost...
Failures: Who Did It - How Did It Happen?
The forensic engineer investigates the cause of failures and determines, from an engineering viewpoint, who was responsible for that failure. These failures need not be catastrophic but...
Oral History: Saving the Past
Excerpts of the recorded interviews of three leading American civil engineers are presented. In the first interview sanitary engineer Samuel A. Greeley recalls how he supervised the construction...
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