Water Harvesting�� Modern Application of an Ancient Method
Water harvesting�The process of collecting natural precipitation from prepared watersheds for beneficial use was the topic of a 3-day symposium held in Phoenix, Arizona, in March 1974....

Metrication�� An Australian Non-Event
Australia's experience with metrication indicates that a series of small, but rapid conversions, well planned in advance, can minimize the cost and inconvenience associated...

Construction Productivity�� How to Improve It
Construction productivity�in the design office, in the field, in public relations, in government regulations�was the subject of an ASCE Conference in suburban Chicago in August 1976. Some...

Controlling Runoff from Construction Sites
In recent years, the U.S. Environmental Protection Agency and a number of states have been placing increased emphasis on controlling erosion and sediment-laden runoff from construction...

Unemployment, Public Works, and the 1976 Presidential Election Campaign
Unemployment remains near 8% despite recovery from the recent recession. One key reason is the exceptionally large number of women and youth seeking jobs. Those having most difficulty...

Desperate Need to Slash Construction Cost of New Subways
Subways and subway stations cost far too much to build in the U.S. Whereas Londoners recently built 3-1/2 miles of subways and subway stations for only $18,000,000, the Washington Metro...

Industrial, Municipal Wastes Combined
The design of the facility in South Paris, Maine, is based on a modified secondary activated sludge treatment process. Because of the quality of the specific industrial wastes being treated,...

Subsurface Investigation for Design and Construction of Foundations of Buildings
This purpose of Subsurface Investigation for Design and Construction of Foundations of Buildings is to set forth the reasoning that guides...

TWA Hangars of Thin Shell Design
TWA hangars at the Kansas City International Airport match the shape of the giant jets. The design molds hyperbolic paraboloid concrete shells into an efficient shop area. Since the design...

Improved Design of Highway Culvert
New culvert design procedures, incorporating improved inlet concepts, make significant construction savings possible through hydrauically efficient use of the culvert barrel. Two representative...

British New Towns and the Civil Engineer
Since World War II Britain has built or is building several dozen New Towns. The first, designed to absorb London's growth, pioneered with breakthroughs in housing layouts...

Environmentally Sensitive Construction Procedures
Construction procedures produce disruptive effects on human and natural environments. Adverse impacts can be minimized best by environmentally sensitive planning and responsive designs....

How the Soviets Build on Permafrost
A report is given on the Second International Conference on Permafrost, held in Siberia in the USSR, July, 1973. The conference covered: thermal aspect of permafrost evolution; regional...

Germany Constructs Steel Box Girder Landmark
The designer of a steel hollow box girder bridge in West Germany describes the design process and gives some construction details. Longest possible spans were sought because of environmental...

Canadian University to Launch Building-Engineering Program
To meet the practical needs of the building industry, Sir George Williams University (Montreal) plans to launch this fall a building-engineering program. The new curriculum is expected...

Helicopter-Erected Tower Crane Demolishes Buildings
A signigicant logistics and scheduling problem existed for the demolition of these old buildings and the erection of a new one in the middle of an existing plant. Careful construction...

Tough Pollution Laws Spur Use of Impermeable Liners
Consultants have increasingly been using flexible, synthetic linings for a variety of civil engineering applications. The U.S. Dept. of Agriculture has been using membranes to line irrigation...

Urban Freeways and Changing Social Values
One key reason for undertaking the $90 billion Interstate Highway System �even though the name may not so indicate? was traffic congestion in and near cities. The intercity segments of...

Difficult Dam Problems�� Stilling Basin Redesign
A landslide of major proportions occurred during construction of Silver Jack Dam in western Colorado. This slide required relocation and redesign of the spillway conduit and basin. Hydraulic...

News in Bridge Decks
This is the second of two articles on short span bridges. The first, in the July issue, described cost-cutting ideas in design. This article focuses on bridge decks: expansion joints,...

 

 

 

 

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