Working Platforms for Specialty Geo-Construction
A major cause of rigs toppling over is the state of the "working platform" that they must work from. A working platform is a layer of material, often compacted sand or gravel, placed over the subgrade,...

The investigations: The World Trade Center towers
On Aug. 21, 2002, the National Institute of Standards and Technology announced it would conduct a building and fire safety investigation of the World Trade Center disaster. This investigation was conducted...

An Academic Safety challenge
The civil engineering curriculum in colleges and universities across the United States needs to include information on workplace safety, argued expert panelists during a recent roundtable discussion. Panelists...

Summary, Conclusions, and Recommendations
Civil engineers have responsibilities for the planning, design, construction, operation and maintenance of physical infrastructures. These infrastructures include all types of buildings,...

Evaluating Bridges With Unknown Foundations for Susceptibility to Scour: North Carolina Applies Risk-Based Guidelines to Over 3,750 Bridges
Scour occurs when flowing water removes erodible material such as sand and rock. For bridges over water, scour affects the stability of pier and abutment foundations and contributes to...

Shafts/Temporary Structures
Shafts should be of a size to accommodate the equipment and pipe selected and to allow for safe working practices. If the shaft must accommodate the permanent works, it is the contractor's...

Regulations
The contractor should meet federal, state, and local regulations. The contractor is responsible for jobsite safety....

Managing Geotechnical Assets to Improve Highway System Performance
As geoprofessionals, we have a great opportunity to look at our work in new ways and to show its value to others. Highway agencies are looking to get the most from their assets and with...

Design-Build and Public-Private Partnerships: Risk Allocation of Subsurface Conditions
Project Owners, especially in the public sector, are exploring and utilizing alternative project delivery methods, such as design-build (D-B) and public-private partnerships (P3s). Some...

A Culture of Unconditional Dedication to Safety

Design of Urban Stormwater Controls
Fully updated to address the paradigm shift in the way stormwater is viewed and managed, Design of Urban Stormwater Controls focuses on consolidating technologies to foster a convergence...

Safety Considerations
This chapter discusses the main hazards associated with the inspection and renewal activities for culverts and storm sewers....

Toward a Unified Approach to Anchorage in Reinforced Concrete Design
The introduction of rationalized design procedures for cast-in and post-installed anchors inEurope and the U.S. was intended to provide a uniform factor of safety for anchorages inconcrete,...

Surviving Nature's Forces
This white paper considers that civil engineers were much involved in building the infrastructure of the communities that were destroyed. We question some of the basic tenets of the role...

Domestic-Well Water-Quality Data and Reports for the Environmental Public Health Tracking Network: USGS and CDC Collaboration
The mission of the Environmental Public Health Tracking (EPHT) Program is to provide information from a nationwide network of integrated health and environmental data that drive actions...

Incorporating Site Characterization Data into Contaminant Concentration Interpolations for Long-Term Monitoring Optimization
Long – term monitoring (LTM) networks are installed for groundwater remediation systems to evaluate the performance of various remediation processes and to track the variation of contaminant...

Challenges in Drinking Water Distribution Systems Security Modeling
This paper is on challenges in drinking water distribution systems security modeling connected to OCMS, addressing research and practical issues coming-out from two recent activities which...

Drinking Water Distribution Systems: A Dual-Use Vision for Implementing an Environmental Observatory for an Engineered System
The U.S. Environmental Protection Agency (EPA), under Homeland Security Presidential Directive 7, has been tasked as the lead federal agency in protecting water infrastructure in the U.S....

Corps Implements Rick-Based Dam Safety Process

Characterization of Particle Class Sizes Associated with Indicator Organisms in Stormwater
The presence of pathogen indicators is the leading cause of water body impairment in the United States, accounting for over 15% of the waters currently requiring TMDL development (USEPA,...

 

 

 

 

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