Current Status of Urban Hydrology in Finland
Due to a smaller scale of urban problems on Finland, active research work on urban hydrology began as late as in the mid-1970's. The major urban hydrology and related studies...
Existing Sewer Evaluation and Rehabilitation
Guidlines for the evaluation and rehabilitation of sanitary sewers are presented. The purpose and scope of sanitary sewer rehabilitation is described. The major emphasis is on filtration...
Failure of the Breakwater at Port Sines, Portugal
The objectives of the Port Sines Investigation Panel were to collect perishable data on and to identify causes of the failure on February 26, 1978, of the rubble mound breakwater at Port...
Behind the Sines, Protugal Breakwater Failure
This article highlights a report on the possible causes of failure of the massive, $178 million breakwater at Sines, Portugal. This was the largest breakwater of its kind in the world....
Sanitary Sewer Design
Good sanitary sewer design practice requires evaluation of alternative locations, slopes and pipe sizes. However, cost considerations generally keep alternative evaluations to a minimum....
What Type of Sewer Pipe is Best? Life-cycle Cost Analysis Yields Answer
In the past, many engineers have selected the type of sewer pipe for a particular project based mainly on a comparison of initial costs of concrete, steel, and other types of pipes. This...
Gravity Sanitary Sewer Design and Construction
This Manual provides both theoretical and pracctical guidelines for the design and construction of gravity sanitary sewers. The initial chapter introduces the organization and administrative...
Hydrologic Applications for Electronic Spreadsheets
Electronic spreadsheets have many potential applications to civil engineering. They are ideal for the derivation of unit hydrographs and the construction of design storm hydrographs. They...
Why Bother with Historic Preservation�
Two case histories are examined regarding old dams that were preserved because of their historic importance, as well as their practical use. One example concerns a dam that was exposed...
Vacuum Sewers�� the Future for Sewage Collection�
Patented in the 19th Century, vacuum sewers are making a comeback. Vacuum is created and maintained at a central collection station and extended, through a network of collecting pipes,...
New Approach to Storm Drainage Pipe Design
Using a recently developed computer program, drainage swales can be designed to provide short-term storage of stormwater. Benefits of this approach to stormwater management include reduced...
Mount St. Helens Eruption�Impact and Civil Engineering Response
The May 18 eruption of Mount St. Helens in Washington state, estimated to have the energy equivalent of a 20 to 50 megaton atom bomb, did tremendous damage. It destroyed an estimated 160...
Municipal Sewage: Three Communities Try to Cope
To meet federal clean water guidelines, New Hampshire's Winnipesaukee River Basin, the City of San Francisco, and the City of Milwaukee have to upgrade their treatment to...
Urban Stormwater Management in Coastal Areas
The proceedings of the National Symposium on Urban Stormwater Management in Coastal Areas brings together the disciplines of urban stormwater management and ocean and coastal engineering....
A Cheap Solution to Pollution from Combined-Sewer Overflows
Every time it rains, the surface waters of many of the older communities around the U.S. are polluted by a mixture of sanitary waste and stormwater. The problem: when the community sewers...
Reducing Sewer Infiltration/Inflow
Under the terms of the EPA Water Pollution Control Legislation, cities must eliminate excess infiltration/inflow to be eligible for 75% EPA sewerage construction grants. To determine the...
Intermediate Service Levels in Sanitation Systems
The major alternatives to sewerage are described and their potential for application in developing countries is explored. The reasons why conventional engineering practices have led to...
Sanitary Sewers for Developing Countries
To combat disease, we try to ensure water supply purity. Water is only one of many methods of disease transmission, however, and its purity does not alone eliminate the spread of disease....
Cofferdams�Economical Flood Protection
Houston Lighting and Power Co. Sam Bertron Generating Station, located on the Houston Ship Channel, had suffered a drop in elevation of 7.5 ft since its construction in 1954. At such a...
Alternative Sewage Systems�Reliable, Cost-Effective
The increasing need to provide adequate sewage disposal systems to meet housing needs of the future should include the evaluation and acceptance of alternative sewage disposal methods....
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