Steel Girder Bridge Sets Record Length
The Veterans Memorial Bridge at Ottawa, Ill., is the longest plate girder, stringer type bridge in the country with spans of 385, 510 and 305 ft. Value engineering played an important...
Instant Expertise: A Danger of Small Computers
The low cost and easy access afforded by small computers have made it easy for an engineer to become an instant expert. Because low-cost software is available for almost any field of endeavor,...
Computer Bound
The increasing use of computers in engineering design carries the danger that the software will be used incorrectly or only partially correctly. Engineers under pressure to reduce costs...
Engineer-Constructor Experience with Computer Aided Design and Engineering
Stone & Webster Engineering Corporation has used CAD/CAE equipment since 1974 and has developed organizations and procedures for integrating the technology into the design process....
Sedimentation and Self Weight Consolidation of Dredge Spoil
Test results suggest that self weight consolidation begins when an interface forms in the settlement column and the slurry reaches a critical concentration as a result of the solid particles...
ASCE Salary Survey 1983
This is the seventeenth report in a series of biennial salary surveys conducted by the American Society of Civil Engineers. Salary data is reported on seven major categories for civil...
Offshore Dredging - Is it still Cost Effective for Beach Restoration?
Offshore dredging has been the source of sand for beach restoration in southeast Florida since Broward County constructed the first project in Pompano Beach in 1970. However, with increasing...
Land Application of Dredged Material at Port Manatee
Maintenance dredging of approximately 600,000 cu yd of highly plastic clay was conducted in October 1983. This material was deposited on a nearly 200 acre tract of farmland in a depth...
Impact and Mitigation: LA/LB Landfill Plan
Mitigation planning in U. S. ports has primarily been on a project by project basis, an approach that is costly and ineffective. This paper reports on a biological impact assessment and...
Alaskan Harbor Plan Features to Reduce Dredging Costs
The high cost of construction and maintenance of harbors in remote rural areas of Alaska has provided unique challenges to coastal engineers and harbor planners in designing affordable...
Outlet Hydraulics vs. Storage Requirements
In many cases developers must use a portion of their land for temporary detention of storm runoff in order to comply with local ordinances. A simple method is outlined which yields the...
Adjustable Speed Pumping for Irrigation Networks
Adjustable speed technology can be an economically viable method of accommodating the significant fluctuations in flow and pressure produced by certain irrigation networks. Combinations...
Increased Reservoir Cost to Meet Instream Flow Needs
Low flow criteria need to be developed for determining the suitability of various low flow regimens for fish and wildlife. For choosing a desirable low flow release, the decision maker...
Fishways--Historical Assessment of Design Practice
Fishway design has evolved over the years in a conservative fashion. Research has led to the development of some innovative structures, but costs and water usage have been high. Conservative...
Studying Water System Operation by Computer
Computer modeling can greatly improve the planning and operation of water systems at relatively low cost. Time-dependent water system models can be used to refine improvements to a water...
CADD: Getting the Right Fee
For those engineering consultants who use CADD systems on government cost-plus fixed-fee contracts, the author sugests establishing a CADD cost center that includes all costs involved...
Micros Can't Stand Alone
Unlike mainframes, which usually come as turnkey systems, microcomputers require separate accessories. Add-ons for micros include storage devices, memory boards, video boards, communication...
Yesterday's Mainframe, Today's Desktop
Low cost, high powered engineering computer work stations are now within the economic reach of every small engineering office. While 8-bit computers can solve engineering problems, better...
Itaipu, South America's Grande Dame
When fully operational, the Itaipu hydropower project, located along the Parana River between Brazil and Paraguay, will be the world's largest. In 1989, it is expected to...
Retaining Walls: Competition or Anarchy?
Until the last 10 years, when a retaining wall was needed a cast-in-place concrete gravity or cantilever wall was used. Then along came Reinforced Earth, and this proprietary system began...
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