Reliability in Rock Engineering
This paper reviews approaches to reliability in rock engineering through a survey of methods developed at MIT. Since these methods are intended to be applied in engineering decisions,...
Roadside Associated Disturbance on Coastal Dunes
Park Road 100 extends through the developed southernmost 8 km of South Padre Island and continues northward for 11.5 km through the Secondary Dunes and Vegetated Flats (SDVF) zone of the...
Physical Modelling of Pocket Beaches
The design of artificial beach systems is dependent upon the modelling criteria and on the selection of the sand material to be used for nourishment. In order to obtain a stable beach...
Along the Road to K
Allegations of threats from toxic and hazardous wastes advanced on political and emotional planes threaten, themselves, to overshadow the facts that should dominate ultimate technical...
Pump Station/Storage Opportunities for Urban Freeway Systems
This paper introduces the concept of utilizing underground storage to minimize both the initial cost and the long-term maintenance and operation costs of multiple pump stations for a freeway...
Optimizing Regional Detention Basins for Price Expressway
Stormwater runoff from the drainage area contributing to the Price-Santan Freeway is captured in regional detention basins which require a series of pump stations for evacuation. With...
New Lessons About the Hydraulic Performance of Highway Storm Sewer Inlets
Laboratory experiments were performed with highway storm water curb inlets to 1) reduce the oblique standing wave that extends into the highway from the downstream side of the inlet and...
Bridge Inspections Related to Bridge Scour
The failure of the Silver Bridge over the Ohio River in Point Pleasant, West Virginia, on December 15, 1967 resulted in the establishment of the National Bridge Inspection Standards (NBIS)...
The Design of Scour-Safe Bridges
Two new highway systems, the East Papago and the Pima freeways, are currently under design and construction within the Phoenix, Arizona, metropolitan area. Both of these highways will...
Scour Measuring and Monitoring Equipment for Bridges
The National Cooperative Highway Research program (NCHRP), through the Transportation Research Board (TRB) of the National Academy of Sciences, is currently sponsoring a research effort...
Bridge Scour and Stream Instability Countermeasures
Stream instability is characterized by lateral or vertical instability. Such instability has led to the failure of bridges and loss of life. Lateral instability is caused by lateral migration...
Bridge Scour Research Needs
This paper presents a summary of the Federal Highway Administration (FHWA) priority research emphasis on bridge scour, sedimentation, and stream stability problems. The most persistent...
Hydraulic Roughness and Sediment Yield in Wheel Ruts on Forest Roads
Clear water flow and sediment yield from simulated wheel ruts in a forest road were measured at five different sites in the Northern Rocky Mountains. These measurements provided information...
Liabilities in Temporary Structures Failures?Representative Case Histories
Eight case studies involving construction accidents caused by failure of temporary structures are presented. These studies illustrate the oftentimes unintended consequence of utilizing...
FHWA'S Bridge Temporary Works Research Program
The Federal Highway Administration (FHWA) has developed a research program to address bridge falsework design and construction. This resulted from the collapse of the Route 198 bridge...
Performance of a Prestressed Rigid Frame During Removal of Column 6W from I93 in Boston, Massachusetts
The first phase of the suppression of Boston's Central Artery included the Early Viaduct Construction in the Central Artery North Area. This project required that Column 6W...
Permanent Structure as Part of the Underpinning System for Boston's Central Artery
The Central Artery, a major six lane structural steel viaduct, has been one of Boston's most significant roadways over the past three decades. Increasing congestion, accidents,...
Composite Twin Tub Bridge Erection Intersection of Interstate I-84 and I-94 in Hartford, Connecticut
Curved bridge erection requires detailed preparation by the contractor, plus a sharing of responsibility and liability between the owner, designer of the new structure and the contractor....
A Design for Automated Pavement Crack Sealing
An automated crack sealing system can have substantial economic benefits including reduced labor costs, improved quality, and improved safety. While automating crack sealing is technically...
Construction Inspection in South Carolina
The paper will discuss the experience of the South Carolina Department of Transportation in the use of consulting engineering firms on bridge construction projects. A review of the current...
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