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...
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...
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...
Flying High
The disgners of a new hangar for the U.S. Air Force Museum created a strong, functional structure with a peaceful mission: to tell the story of American military aviation....
Advancing Under London
Bored tunnels account for more than 20 percent of the Channel Tunnel Rail Link, the high-speed rail line that will connect the Channel Tunnel with London upon its completion in 2007. In...
Singapore on the Move
Tunneling in areas that are densely populated and highly developed is never easy, but an addition to Singapore's Mass Rapid Transit system was needed to serve those in the...
MAX Transit
Two expansions to the Metropolitan Area Express (MAX) light-rail transit system in Portland, Oregon, illustrate the value of exemplary planning and creative financing. The Airport MAX...
Metamorphosis
Ranked as one of the 15 tallest buildings in New York, the headquarters of the Bear Stearns Companies, Inc., is a 45-story skyscraper that is 815 ft (248 m) tall. Replacing an existing...
Twin Crossings
The Hungerford Bridge actually comprises twin pedestrian bridges that are being constructed on either side of an operational 19th century railway bridge over the River Thames in London....
Big Idea
The reconstruction of the Big I�the intersection of interstate routes 25 and 40 in Albuquerque that was named for its appearance from the sky�was likely to disrupt commuters and interstate...
Ahead of the Curve
Four curved steel girder bridges for Pittsburgh's light-rail project posed challenges ranging from multiple site constraints to special rail loads and welded rail interactions....
The Train Lane
With the elimination of more than 200 at-grate roadway crossings, the Alameda Corridor - $2.4-billion rail cargo expressway in Los Angeles - will carry 100 freight trains in and out of...
Engineering Change at MIT
The first class to fulfill requirements established at the Massachusetts Institute of Technology as part of a revision of the civil and environmental curricula graduated in 2001. The changes...
Freight Pipelines: Past, Present and Future
Freight pipelines are a set of time-honored methods to transport solids by underground pipelines, and the technology is improving. However, for intercity and interstate freight transport...
Turbulence, Bottom Boundary Conditions, and Sediment Transport in a Shallow Water Habitat
Field experiments were designed to explore the effects of vegetation on the hydrodynamics and sediment transport in Franks Tract, a shallow water habitat in the Sacramento-San Joaquin...
Penn State's Graduate Option in Watershed Stewardship
A Graduate Option in Watershed Stewardship has been created at Penn State with the objective of educating water resources students to implement team-oriented, interdisciplinary problem...
Watersheds: Preparing Students for the Future
Colorado State University continues to maintain the only undergraduate major in Watershed Science since its inception over four decades ago. As the flagship of Watershed Science, CSU has...
Effects of Wildfire on Water Supplies: A Case Study from Denver, Colorado
Wildfires can directly impact municipal water supplies by increasing a watersheds susceptibility to erosion, and thereby potentially increasing the transport of sediment and organic matter...
Watershed Management Strategies for the Sustainable Environmental Rehabilitation of Stressed Areas in Northern Greece
The present paper has a two prong emphasis. Firstly, it demarcates the physical, structural and socio-economic environment in central Macedonia and the associated water management issues....
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