Water In, Water Out
Moving water into and out of the Eastside Reservoir, which will be the largest body of freshwater in southern California, requires some of the largest pumping and water conveyance systems...
Space Truss
The International Space Station will be more than 310 ft (94 m) long when it is completed sometime in the next decade. The backbone of the structure is a hexagonal truss system that will...
Chicago's Urban Public Transportation System: Its Operations and Use by People
The Chicago Transit Authority (CTA) faces a number of challenges of all kinds in its attempts to gain and keep riders. But most important is finding ways to serve and satisfy its customers....
Hong Kong's Public Transport System: Harmonizing Choice, Diversity and Urban Integration
The benefits of integrating railways with land use planning and active urban development and why this is rather successfully achieved in Hong Kong are discussed. The people of Hong Kong...
The Transportation System for the New Hong Kong International Airport
The decision by the Hong Kong Government in 1989 to relocate the city airport at Kai Tak had resulted in the largest infrastructure project ever undertaken in Hong Kong in recent times....
Urban Public Transportation of Singapore
Singapore is a city state with a land area of 648 sq km and a population of 3.8 million. The total daily trips generated is about 7 million. Of these, around 5 million trips are on public...
Mississippi Diversion
The $103-million Davis Pond freshwater diversion project in coastal Louisiana will divert up to 10,650 cfs (300 m�/s) of Mississippi River water to the Barataria Bay Estuary through four...
Application of the Texas A&M University (TAMU) Dredging Cost Model to Long Distance Transport
To develop intelligent decisions about moving sediment long distances to the coast from dams, the cost becomes a major factor. The cost will be a function of many factors including cleaning...
Environmentally Friendly Transport of Reservoir Sediment for Beach Nourishment with EDDY Pump
Sand impounded behind hydroelectric, flood-control and debris dams not only diminishes the intended function of the reservoir, but also starves downstream coastline by denying natural...
Coastal Benefits and Impacts of Dismantling Matilija Dam
A numerical shoreline evolution model was used to examine the shoreline changes associated with the release of 2.3 million cubic meters of beach quality sediment from behind Matilija Dam....
The New Orleans Network
Though Seattle and Portland are the cities usually associated with high rainfall, the New Orleans metropolitan area averages 58 in. (1,473 mm) of rainfall each year�more than any other...
Application of Linear Programming Techniques to Optimize Groundwater Withdrawals for a Pump and Treat System at Aberdeen Proving Ground, Maryland
The U.S. Army disposed chemical agents, laboratory materials, and unexploded ordnance at the O-Field landfill from before World War II until at least the 1950s. Soil, ground water, surface...
Use of Optimization Techniques to Evaluate Ground-Water Management Strategies in the Central and West Coast Basins, Los Angeles County, California
The U.S. Geological Survey and the Water Replenishment District of Southern California are engaged in a cooperative study of the geohydrology, geochemistry, and ground-water management...
Dynamic Groundwater Remediation Design with Genetic Algorithms
In groundwater remediation design it has been shown that dynamic policies, in which the pumping strategies may vary throughout the remediation period, can result in more cost-effective...
Optimization of the Aquifer Remediation Costs and Design with Pulsed Pumping
(No paper) Pump-and-treat is a common technique for the remediation of contaminated aquifers. However, slow kinetic mass transfer at sites contaminated with organic compounds may reduce...
Theoretical and Empirical Implications of Increasing Block Rates
(No paper) The U.S. Army disposed chemical agents, laboratory materials, and unexploded ordnance at the O-Field landfill from before World War II until at least the 1950s. Soil, ground...
Water Resource Systems and Modeling of the Lower Virgin River Using EXCEL
(No paper) The first objective of this study was to determine the availability of water at the confluence of the Halfway Wash and the Virgin River and to simulate the diversion of river...
A Tale of Two Bids
In early 1992, the Escambia County Utilities Authority determined that its 2 mgd Avondale Wastewater Treatment Plant should be expanded to 8 mgd to meet the growing needs of the Pensacola,...
Pump-and-Treat Rescue
The pump-and-treat method of remediation has been regarded for years as unsuccessful and untrustworthy. But a recent project in Chicago showed that in conjunction with horizontal wells...
Cliffside Correction
Construction of a 10 km sewer collector in Valpara�so, Chile, came to a halt due to construction difficulties experienced during pipe jacking operations. Analysis revealed not only construction...
Return to search