Years of Planning for the South San Francisco Bay Shoreline Project: Now It�s Time to Build! Rapidly but Gently!
When a complicated project is completed, and you ask the engineers, "What was the most challenging part of this project?" a couple of difficulties usually come to mind. We�ve all heard war stories from...
Screw Piles and Helical Anchors: 180 Years of Use in Geotechnical Engineering
Since 1836, screw piles and screw cylinders have been used successfully throughout the world to support a variety of large-scale, civil engineering structures. Their development and use...
Sea Change
Desalinated seawater�considered a novelty by the United States water treatment community just five years ago�is rapidly becoming a viable water resource in this country....
A Cleaner Coast Down Under
As part of a strategy to improve the quality of wastewater treatment in the Illawarra- a popular coastal region in Australia- the country's largest supplier of water and wastewater...
Power Shift
Engineers designing a Manhattan skyscraper with offices in the lower floors and residences in the upper found that they had to employ several unusual methods to accommodate client needs....
Thinking Deep
An underwater pipeline that has set records for its 55 in. (1,397 mm) diameter and 3,000 ft (914 m) depth stretches nearly 2 mi (3 km) from the shore of Hawaii to bring cold seawater to...
Tapping the Desert
As part of an effort to augment the limited supply of freshwater in El Paso, Texas, engineers and planners are eyeing a new source: desalinated water pumped from beneath the desert floor....
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...
Rebuilding an Island
Following centuries of rising sea levels and pounding waves, almost all of Poplar Island had, by the 1990s, been lost to erosion in the Chesapeake Bay. Today the land is on its way back,...
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...
Depth Measurement Using Remotely Sensed Data, Specifically A
The compact airborne spectrographic imager (casi) is what is referred to as an imaging spectrometer. This is an optical device that is mounted on an aircraft and used to collect high resolution...
St. George Habor?Berm Breakwater Construction Considerations
During the period 1984-1987 three berm breakwaters with a total length of approximately 800 meters were constructed at St. George Harbor on St. George Island in the Pribil of Chain of...
Repeat Performance
Working with a budget of $10 million, engineers designing a new high-rise residential structure in New York City had to find creative ways to control costs. One budget-saving idea was...
Rhythm of Beachrock Levels in Contrasting Plate Settings: Rifting Red Sea and North American-Caribbean Plates
Sequences of beachrocks have been compared from the northern Red Sea, the North American plate (north shore of Puerto Rico), and an island of the Caribbean plate. In all these areas the...
Characteristics and Implications of Relict Carbonate Paleoshorelines
Throughout the Florida-Bahamas region, the accumulation of coastal carbonate deposits, excepting the present highstand, appears to be episodic. Back through time these deposits provide...
Evolution of Composite Floor Systems in the United States
Composite floor systems, which combine structural steel beams with a cast-in-place concrete slab, have grown in popularity in the U.S. during the past 40 years. In most early applications,...
Native American Imprint
Following a design phase of more than four years, construction has finally begun on the Smithsonian Institution's National Museum of the American Indian, which will occupy...
Coming to the Surface
In the past few years, the coastal areas of the Gulf of Mexico and much of Texas have experienced less than normal rainfall and record water demands. During this period, average daily...
Above Them All
The design for what would be the next world's tallest building relies on a 1,550 ft (472 m) high concrete core that will give occupants of the top floors of the building unimpeded...
Control of Wind Response of the Trump World Tower
The Trump World Tower is a luxury residential building located on 1st Ave. and 48th St. in New York City,...
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