Pipelines in the Constructed Environment
This proceedings,
Compensation Grouting
To minimize ground movement while tunneling a sewer 5 m below Toronto's Spadina subway line, engineers used special instrumentation, tunneling control and grouting to limit...
Corrosion Control
As pipe systems with nonwelded joints have become more common, so have problems with corrosion. It's up to designers to carefully consider corrosion issues in order to avoid...
Manhole Rehab
Using trenchless technology, two construction crews working on the Massachusetts Water Resources Authority's Wellesley Extension Relief Sewer project rehabilitated 83 manholes...
Overflow Control
The city of Houston devised an innovative flow remonitoring effort that allowed engineers to modify or eliminate many planned overflow control facilities. Net construction savings topped...
The Pipes Sound Off
Using technology developed by the navy, engineers are now able to determine the condition of prestressed concrete cylinder pipes by listening to the prestressing wires as they break....
Infrastructure Visionaries
The city of Indianapolis is investigating the long-term structural integrity of its infrastructure, in an unusual effort for U.S. municipalities. Most cities are strapped for cash and...
Pipeline Research Needs
Manufactured Gas Plants: Yesterday's Pride, Today's Liability
Manufactured gas plants were the pride of the industrialized world until cleaner, natural gas pipelines were built beginning in the 1930s. Most gas plants had closed by the 1960s, leaving...
Rehab by Helicopter
The City of San Diego's 86-year old Dulzura Conduit has been in almost continuous operation since it first opened in 1909. But by 1984 flow had been reduced to less than 15...
Plumbing the Quality of a Sewer System
Consultants in Phoenix were recently charged with assessing the city's sewer system, many feet of which were laid without plastic lining to protect them. Developing a capital...
Dam Foundation Erosion Study: The Design of a Sidewall Orifice for Simulation of a Free Trajectory Overtopping Jet
This paper describes the design of a sidewall discharging orifice for simulation of a free trajectory overtopping jet. A sidewall orifice discharges through the sidewall of a pipe. The...
Genetic Algorithm Design of Piped Irrigation Systems
The design of piped irrigation systems is a complex matter. In its simplest form it involves the selection of the sizes of pipes and other hydraulic elements so as to ensure that the varying...
Treatment of Wet Weather Discharges in Columbus, Georgia
The City of Columbus, Georgia and the Columbus Water Works (CWW) instigated a combined sewer overflow (CS 0) control program to protect the Chattahoochee River against adverse impacts...
Grade Control Structures for Pipeline Crossings in the Arid Southwest
Pipeline crossings at streams, rivers, and washes are at risk due to bed and bank erosion in the river environment. Buried pipelines may be exposed in the channel bottom by scour of bed...
Mitigation of Predation at a Juvenile Bypass Outfall Site
Reducing predation at an outfall has become an increasingly important consideration in the design of a juvenile salmonid bypass system. To minimize the exposure juveniles have with predators...
CSO Planning Model Development and Verification Strategy
A model verification technique is described that uses modeled and monitored overflow occurrences defined in terms of the same long-term frequency statistics that are used to evaluate CSO...
Indianapolis Uses New Radar Technology to Refine Hyetographs for CSO Model and SSES Studies
Indianapolis is the first city in the country to install the French-developed technology designed by urban hydrologists to accurately measure rainfall between rain gauges. Installed in...
Pipe Network Analysis and Design in Developing Regions. Case Study: Novokuznetsk, Siberia
Pipe network analysis, design and optimization in developing countries poses some unique problems, yet, is of paramount importance. Under these conditions, there is frequently only sparse...
The Balanced Indigenous Population (BIP) and Statistical Process Control (SPC) in Marine Pollution Ecology
This account discusses the regulatory requirement of maintaining a Balanced Indigenous Population (BIP) as it relates to an ocean outfall. A brief history of the development of the BIP...
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