Evaluation Plus History Equals Sewer Renovation
Sewers built in the 1920's were overflowing in the Fort Worth Zoo after moderate rain events. Data from A Sanitary Sewer Evaluation Survey (SSES), plus the Maintenance History...
Remote Infrared Thermal Sensing of Sewer Voids
The question addressed by this paper is how to detect unseen problem areas in sewer systems before they give way. At present, progressive sewer administrations may use crawl crews or television...
The New Generation of Pipeline Rehabilitation
The new advancements in pipelines reconstruction technologies now permit total sewer system rebuilding of collectors, drainlines, manholes, service laterals, and force mains without excavation....
Willingness to Pay for Stormwater Infrastructure
The contingent valuation method is used to estimate the willingness of Baltimore County homeowners to pay for stormwater controls to reduce nutrient loadings to the Chesapeake Bay. Homeowner...
Is There a Future for Vacuum Sewers?
Vacuum sewers collect and transport sanitary sewage using pressure difference rather than gravity as the primary motive force. Compared to conventional gravity sewers, they use smaller...
CSO Induced Circulation in Marine Tributaries
Pulses of freshwater flow to estuarine tributaries from combined sewer overflows (CSO) create short duration intense salinity stratification in the tributaries. An accurate assessment...
Siting the New Boston Harbor Outfall: Near-Field Analysis
In the near-field analysis for Boston's proposed Deer Island outfall to Massachusetts Bay, multiple initial dilution calculations were applied to estimate the frequency distribution...
Bay-Wide Model Studies for the Boston Ocean Outfall Siting
Oceanographic data and numerical models were used to evaluate candidate diffuser sites to discharge effluent from Boston's planned secondary treatment plant. The study showed...
Receiving Water Modeling for CSO Investigations in Boston Harbor
The computer models QUAL2EXP and TEA/ELA were used to model Combined Sewer Overflow (CSO) remediation alternatives in Boston Harbor and its major tributaries. The models were adapted to...
Iona Outfall Plume Characterization Study
Field studies were conducted in August 1988 to verify the performance of the new deep sea outfall for the Greater Vancouver Regional District (GVRD) Iona Island Sewerage Treatment Plant...
The Hydraulic and Hydrological Interactions Between Urban Sewer Systems and Receiving Waters at High Discharges
In the transition region from sewer to river, the penetration of river flood water into the sewer network or the hydraulic overload of small rivers due to sewer system discharges, may...
Urban Stormwater Quality Enhancement
Source Control, Retrofitting, and Combined Sewer Technology
This proceedings contains the papers presented at the Engineering Foundation Conference on Urban Stormwater Quality Enhancement - Source Control, Retrofitting and Combined Sewer Technology,...
Upgrading Antique Sewers
In a $35 million, four-year program, the Massachusetts Water Resources Authority (MWRA) completely restructed the pumping system serving the sewers under East Boston, Chelsea, Revere and...
Strategic Sanitation Planning
Conventional sewerage has generally been the only method considered for human waste and wastewater disposal in urban areas, both in developed and developing countries. In developing countries,...
The Pros and Cons of Public Education
Today, engineers work for a public that has lost faith in the government's ability to spend money efficiently and to contain pollutants effectively. Many engineers now see...
Buying Tomorrow's Water
Cities are finding that selling future access rights to sewer and water treatment plants can get them needed expansion capital. Although the access rights system is similar to development...
Economic Impacts of Storm Sewer Design Criteria
This paper discusses the selection of storm sewer design criteria and the resulting economic impacts. Using the Rational Method for calculating design flows, an investigation was made...
Urban Stormwater Runoff Management
Local land use regulations managing stormwater runoff in new urban developments are the most practical and effective method to control pollutants in urban stormwater runoff or prevent...
Relief of an Urban Storm Drainage System
The Peaks Branch storm sewer system was designed in the 1930s to drain 5.7 square miles of East Dallas. Subsequently, development blocked the emergency overflow paths and many areas are...
Analysis of Storm Sewers During Surcharge
A mathematical model based on a lumped system approach is presented to simulate unsteady flow in storm sewers during surcharge. The model equations and method of solution are presented....
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