Seismic in St. Louis
Following collapse of sections of the double-deck I-880 Cypress Viaduct in the 1989 Loma Prieta earthquake, the Missouri Department of Transportation initiated a seismic evaluation and...
Dampers Do the Job at Davis (Available only in Structural Engineering Special Issue)
Three recent earthquakes�the Kobe earthquake in Japan and the Loma Prieta and Northridge earthquakes in California�have caused engineers to take a much more serious approach to seismic...
In Situ Remediation of the Geoenvironment
The progress in the development and implementation of techniques for the remediation of contaminated soil and ground water has been and continues to be rapid. These proceedings focus on...
An Evaluation of Laboratory Test Results for the U.S. Gypsum Sight and Sound Screen System
The highway innovative Technology Evaluation Center (HITEC) serves as a clearinghouse for implementing highway innovation by providing nationally focused, collaborative evaluations of...
Geophysical Exploration for Engineering and Environmental Investigations
The U.S. Army Corps of Engineers has prepared this Manual,
General Procedures for Conducting an Investigation
This section covers general procedures for conducting an investigation. Topics include lifelines and critical facilities to be investigated; the role of the team leader; getting started;...
Assessing Opal's Impact
Geographic information systems and other high-technology tools were used to quantify the effects of Hurricane Opal in October 1995. The Federal Emergency Management Agency, along with...
Shear-wall Retrofit
With the effects of the 1989 Loma Prieta earthquake still lingering and another quake looming sometime in the future, engineers faced with retrofitting the Pacific Gas & Electric...
Seismic Solutions for Steel Frame Buildings
After the Northridge Earthquake, damage in steel moment resisting frame connections stunned engineers. Now those engineers are scrambling to find and test new kinds of connections. This...
Spotlight on Steel Moment Frames
Engineers' confidence in moment connections was shattered when damage was discovered after the 1994 Northridge earthquake. Such connections are now a hot subject for U.S....
Fracturing for In-situ Bioremediation (Available only in
A pilot-scale evaluation of an integrated pneumatic fracturing and bioremediation system demonstrated the enhanced removal of BTX from a gasoline-contaminated, low-permeability soil formation....
Historical Development of Bridge Scour Evaluations
Scour of bridge foundations (piers and abutments) is the largest single cause of bridge failures in the United States. Conversely, uncertainties of the scour depth at bridge piers and...
Use of SALQR Optimization in Large Aquifer Cleanup
A modified form of Differential Dynamic Programming (DDP), called Suc cessive Approximation to a Linear Quadratic Regulator (SALQR), is used to compute optimal policies for remediation...
Discharge Measurements and Predictions in Wetlands
Existing procedures used to estimate discharge in wetland environments are evaluated. Suggestions are made for possible improved methodologies based on field investigation. Suggestions...
Engineering Features of the Red Bluff Research Pumping Plant
In 1995, the construction of the Red Bluff Research Pumping Plant (RBRPP) was completed. The pumping plant is a research facility for evaluating the biological/engineering features of...
An Analysis of Characteristics of Basset Force on Particles Accelerating in Arbitrary Flow Field
In present study of solid-liquid two phase flow, the effect of Basset force on a particle moving unsteadily in a non-uniform flow is not very clear. For this reason, the properties of...
State of Delaware-Scour Evaluation Program
The Delaware Department of Transportation (DelDOT) is evaluating the potential for scour at bridges which have a National Bridge Inventory (NBI)-Item 113 Code Rating of 6 (scour susceptible)....
Arizona Local Government Bridge Scour Evaluation Study
The Federal Highway Administration has mandated that the scour susceptibility of existing bridges over waterways and open to the travelling public be evaluated. With large numbers of highway...
The Scour at Bridges Management Program in Rhode Island
The Rhode Island Department of Transportation (RIDOT) has developed and implemented a comprehensive two-phase scour susceptibility program for screening and assessment of scour at bridges....
South Carolina Department of Transportation's Statewide Program of Bridge Scour Evaluation
The South Carolina Department of Transportation (SCDOT) has instituted a program to satisfy the FHWAs requirements to evaluate the scour potential of the Nations bridges. The SCDOT's...
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