Dam Anchored to Foundation to Withstand Floods
Federal Power Commission Order No. 315 required a safety review of Conowingo Dam and Powerhouse by an independent board of consultants. As recommended by this board, a study was made of...
Fatigue Cracking�Problem for Welded Steel Bridges
A recent problem with welded steel bridges is fatigue cracking at welded details. Fatigue cracks begin in small flaws or discontinuities at welded connections and grow to a critical size...
Design of Excavation Blasts to Prevent Damage
Effects of ground vibrations on nearby structures and people resulting from blasting operations have become a major environmental problem and concern to the engineer and the contractor...
What's New in Roofing�
For 75 years the waterproof membranes in roofs were made the same way�layers of bitumen alternating with layers of felt. Now for the first time prefabricated membranes of synthetics are...
Newark Airport Pilots Cost-Saving Runway Paving Concept
The NYC Met Section nominee for the 1978 Outstanding Civil Engineering Achievement Award was the expansion of Newark International Airport. The $200 million redevelopment included a new...
The Renaissance of Downtown Detroit
The Detroit Renaissance Center consists of a 70-story hotel (one of the world's tallest) and 4 39 story office towers, plus restaurants, retail stores, and movie theaters....
Stadium Seats Slide on Water
In Denver, a unique 21,000 seat, 9-million pound movable stand is used to convert the Denver Mile High Stadium from baseball to football or soccer. The stands are lifted and move on 163-forty...
Rx for Drought: Pumping Plant to the Rescue
Designed and built by the East Bay Municipal District, the pumping plant built last year at Middle River, Calif. was not unusual in design. What was unusual was the speed with which it...
Minority Consulting Engineers Speak Out
A sampling of opinion from the point of view of black consulting engineers. Quota systems are discussed as are financial problems, attitudes of banks, joint-ventures, abuse of minority-participation...
Reinforced Concrete Research Council: Why So Successful�
At 30 years old the first-formed of ASCE's 14 research councils, the Reinforced Concrete Research Council is also one of the most successful. Some 40 RCRC research projects...
Reliability and Limit States Approaches to Design
Increasingly, designers of structures and other civil engineering projects will be designing in these ways. What is the reliability approach? It is based in part on the fact that the magnitude...
Chevrolet Raises the Roof
Chevrolet's Gear and Axle plants in Detroit needed more space so a decision to renovate the 60-yr old structures rather than relocate the operation was made. New roof structures...
Prefab Structural Components Solve Expansion Problem
Another story was added onto an existing low-rise building, where soil strength was so low that the new floor had to be built by sinking new columns down to a sounder stratum, placing...
Florida Sewage Plant First to Remove Nutrients with Bacteria Alone�� No Need for Costly Chemicals
Palmetto, Florida is now constructing the first advanced wastewater treatment plant in the U.S. to use the Bardenpho process. Unlike other AWT processes, this ingenious plant removes pohosphorus...
Gophers Go Underground
A major facility, Williamson Hall, was constructed to be almost entirely below grade on the East Bank Campus of the University of Minnesota. Heating and cooling energy requirements will...
Modern Concrete Structures Survive Romanian Earthquake
On March 4, 1977, 35 buildings collapsed during a severe earthquake (7.2 on the Richter scale) in Bucharest, Romania. Thirty-two of the 35 were older structures, erected before World War...
Expansive Soils�Geotechnical Problems Are in Hand; Now Need to Familiarize Nonengineers
Expansive soils damage thousands of buildings, many miles of highway each year. How and why these types of clays expand is explained. How geotechnical engineers in Colorado, Texas and...
NY's Building Boom
A report on a highly visible part of New York City's infrastructure, its buildings. An apparent resurgence of construction activity is underway; over one billion dollars in...
Dominance of Special Interests Dashes NYC Hopes for Recovery
How well is New York City doing now? Is it really on the way to recovery? Since the landmark report by the Temporary Commission on City Finances was released over a year ago, very little...
Single Additive for Recycling Asphalt Pavements
A design concept for recycling deteriorated asphalt pavements using a single reclaiming agent has been developed. The article established guidelines to help engineers determine the physical...
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