Dynamic Compaction of Landfill Beneath Embankment
This paper presents the results of a highway project where dynamic compaction was used to densify a closed landfill prior to constructing highway embankments over the landfill. The purpose...
The Control of Settlement Using Geogrids
The applicability of geogrids in reducing settlements has been investigated in the laboratory in two separate studies, in unpaved roads under cycled load applications, and as overlays...
Demonstration Project for Scour Instrumentation
A Federal Highway Administration (FHWA) Demonstration Project was developed to facilitate technology transfer of instrumentation related research to the highway industry. The objective...
Sensitivity Analysis of Bridge Equations
Computation of riverbed scour at the 482,000-plus bridges over water in the United States of America requires a significant level of hydraulic engineering effort. To do cost-effective,...
Damage to Highway Infrastructure 1993 Mississippi River Basin Flooding
A study has been initiated to investigate the basin-wide impact of the 1993 Mississippi River Basin flooding on damage to the highway infrastructure. The study involves site investigations...
Contraction Scour at a Bridge over the Iowa River
Flooding of the Iowa River during July and August 1993 caused extensive contraction scour at the State Highway 99 bridge over the Iowa River at Wapello, Iowa. At least 3.3 m of piling...
Bridge Scour Instrumentation
This paper presents a brief status report of research funded by the National Cooperative Highway Research Program (NCHRP Project 21-3, Instrumentation for Measuring Scour at Bridge Piers...
Brief Summary of National Bridge Scour Data Base
This paper briefly summarizes more than 470 measurements of local channel scour at bridge piers from 58 sites in 14 States. Relations between local scour and selected deterministic parameters...
Reconstruction of Concentration Boundary Condition for Unsteady Pesticide Transport Modeling
A one-dimensional unsteady contaminant transport model which used an unsteady hydraulic field was used to model pesticides (metolachlor, metribuzin) in the Iowa River/Coralville Reservoir....
Use of FESWMS-2DH for the Attaway Road Bridge Repair Project
The paper presents the application of the Finite Element Surface Modeling System: Two Dimensional Flow in a Horizontal Plane (FESEMS-2DH) computer program in the Attaway road bridge repair...
Impacts of the 1993 Flood on the Mississippi River in Illinois
The 1993 flood has now been recognized as one of the greatest floods on the Mississippi and Missouri Rivers. Its geographical extent included portions of Iowa, Missouri, Illinois, Wisconsin,...
Summary of Highway Product Evaluation Practices and HITEC Needs Survey
This report (CERF No. 94-5012) contains the results from a survey conducted by the Civil Engineering Research Foundation (CERF), the research affiliate of the American Society of Civil...
Northridge: Questioning Our Codes
The earthquake that struck Southern California at 4:31 A.M. Pacific Time on January 17, 1994 was responsible for 61 deaths, more than 9,000 injuries and $30 million in damages. From its...
Poland Gets Moving
Poland's transportation network is a victim of two world wars, foreign domination, and neglected maintenance, but there are ambitious plans to rebuild the road and rail systems....
Japan Builds 21st Century Monuments
Japanese civil engineers are designing and constructing an extensive array of 21st century landmarks that incorporate innovative technology applied to industrial restructuring, advanced...
Chicago Automates Expressway Lanes
Chicago motorists will soon reclaim another rebuilt expressway in October with substantial completion of a $450 million, 7.5 mi portion of I90/94, the John F. Kennedy Expressway. The two...
Managing Traffic With Real-Time Transponders
The same technology that automatically bills a driver rolling through a toll gate can be extended to provide automated electronic information required by operators of Intelligent Vehicle...
America's Pavements: World's Longest Bathtubs
Pavements are the most unusual structures designed by civil engineers. Water flows through their tops, bottoms and sides but because pavements are relatively flat, flows out again very...
Focusing on Fatigue
Properly designed and maintained bridges sometimes need repair for fatigue damage. Among the reasons may be that the bridge was designed before current fatigue design provisions, or initial...
Deliverance
Through the years, the low-bid has been the traditional contracting method for American public sector construction. Increasingly, a number of government agencies are experimenting with...
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