Decision Support System for Daily Real-Time Operations in the Geum River Basin, Korea
A joint international collaboration between the Korea Water Resources Corporation (KOWACO) and Colorado State University (CSU) has resulted in development of a decision support system...
Bayesian Approach to Support Design of a Groundwater Long Term Monitoring Plan
This paper discusses a retrospective data assimilation approach that allows one to examine the spatial and temporal differences between forecast and observed states. Their stability, or...
Characterization of Anaerobic Microbial Consortium Response to Thiol-Reactive Compounds
The activity of anaerobes in wastewater treatment processes can be limited when a toxicant enters the system. For certain toxicants, along with the decrease in metabolic activity, an efflux...
Replacing a Dying Water Infrastructure
The water infrastructure in the United States will soon need massive repairs. Pipes are leaking, and most pipes are near the end of their life cycles. Tens of thousands of sewer overflows...
Developing a Long Term BMP Sampling Program - Initial Results from the Villanova Stormwater Urban Partnership
The Department of Civil and Environmental Engineering has teamed up with the Pennsylvania Department of Environmental Protection to create a directed studies and long term research center...
Effectiveness of a BioInfiltration BMP
This paper presents results from a project to construct and study a BioInfiltration Traffic Island on the grounds of Villanova University. The projects goals were to 1. To create a bioretention...
Panel Discussion on Stormwater Issues in Pennsylvania
The management of stormwater in Pennsylvania has radically changed over the last several years due to the concern of the citizens of the Commonwealth, and the advent of NPDES Phase II....
The Pocono Creek Goals-Based Watershed Management Pilot Study-Phase 2
Phase 2 of the Pocono Creek Pilot Study begins with focusing on the issues identified in Phase 1 and prioritizing them on a watershed wide scale. The Pocono Project worked through the...
The Benefits of Virtual Building Tools
Several short case studies illustrate how virtual building tools enable designers, builders, and owners to test any aspect of a project's design, organization, and schedule...
Keeping It Rolling
Thanks to a complex construction staging scheme and a temporary tieback support system, workers were able to rehabilitate an aging rolling lift bridge in Boston....
The Big Dig's Big Dig
Widely recognized as the most demanding component of Boston's Central Artery/Tunnel Project, the tunnel jacking work performed beneath operating rail tracks represents a quantum...
Joining Forces
In times of limited funding, roads and mass transit are sometimes seen as competing interests, but in Denver the two are united in a massive effort to reinvent an aging and congested transportation...
Enduring Strength
The long-term effectiveness of posttensioning in bridges depends on the resiliency of the tendons, and various factors related to construction and marine environments come into play. How...
Northeast Passage
It will take a deft hand to manage the many aspects of this massive highway and mass transit project along interstate 95 in Connecticut. CAreful construction staging and detailed traffic...
The Smaller the Better
Many wastewater treatment plants in the United States seeking to expand or upgrade their facilities often face space limitations. But now a number of small-footprint technologies refined...
Ramping Up
The reconstruction of the Sprinfield interchange, also known as the Mixing Bowl�one of the largest, most complex highway projects in the nation�has reached the halfway point. But some...
Under Cover
In capping a 190-acre hazardous landfill in metropolitan Los Angeles, engineers saved time and money by relying on a construction method seldom used in the environmental sector: design/build....
Worthy Successor
Now under construction, the replacement for Florida's Hathaway Bridge, which crosses St. Andrew Bay in Panama City, will more than double the capacity of the existing structure....
Sediment Remediation at the Unnamed Tributary to the Ottawa River
A sediment removal action was conducted in the Unnamed Tributary to the Ottawa River to address sediments containing polychlorinated biphenyls(PCBs) at concentrations up to 74,000 mg/kg....
Application of the NRC Framework for Evaluation of Remedial Actions at a PCB Contaminated Sediment Site
The National Research Council recently proposed that the framework of the Presidents/Congressional Commission on Risk Assessment and Risk Management be applied to the selection and implementation...
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