Pay Now, Or Pay Later � Using A Risk-Informed Mindset for Site Investigation Decisions
How much subsurface investigation is adequate to aid in the planning and design of a construction project? It�s a question every geo-professional must grapple with, particularly in an era where cost efficiency...
Seismic Performance of a Deep Soil Mixing Grid: A Magnitude 7.1 Load Test at the Port of Alaska
The Port of Alaska in Anchorage (Port) has embarked on a multiphase modernization program that includes the development of a new petroleum and cement terminal (PCT) berth. The berth consists of a pile-supported...
Tsunami Loads and Effects
Guide to the Tsunami Design Provisions of ASCE 7-16
The devastating tsunamis that struck Chile and Japan in 2010 and 2011 underscored the critical need for new structural design criteria to improve building resilience and safeguard human life. They also...
Calendar: Bridges 2020
Featured bridges are: Onaruto Bridge (Naruto, Japan); Vizcaya Bridge (Portugalete, Spain); Veteran Memorial Bridge (Rochester, New York); Shibkalinagar Bridge (Kakdwip, India); Brookdale Bridge (Stowe,...
Sustainability Forms the Foundation of Future Development
Civil engineers must be willing to learn and adapt, be innovative, and work together to meet the engineering needs of a sustainable future....
Observe, Teach, and Keep Learning
Norman Quach, P.E., S.E., is a senior bridge engineer at T.Y. Lin International in San Francisco. His advice to younger engineers is to never stop learning....
Not So Fast
Part amphitheater, part bridge, this crossing has space for everyone from book readers to automobile drivers....
Calendar: Bridges 2019
Featured bridges are: Portageville Bridge (Letchworth State Park, New York); Brooklyn Bridge (New York City); Buntun Bridge (Tuguegarao City); Henley Street Bridge (Knoxville, Tennessee); Forth Bridge...
Calibration of Jackup Leg Foundation Model Using Full-Scale Structural Measurements
The fitness of jack-up rigs to operate in varying water depths and weather conditions is determined by "site-specific" structural assessments. These assessments are conducted by a wide range of companies...
Calendar: Bridges 2018
Featured bridges are: Isleton Bridge (Isleton, California); Royal Gorge Bridge (Canon City, Colorado); Dom Luis I Bridge (Porto, Portugal); Crescent Avenue Bridge (Fort Wayne, Indiana); M-231 Bridge (Ottawa...
Calendar: Bridges 2017
Featured bridges are: Tongjin Bridge (Nanxun, Huzhou, China); St. John's Bridge (Porto, Portugal); Foresthill Bridge (Placer County, California); San Francisco-Oakland Bay Bridge (San Francisco, California);...
Small Projects are Big Deals
Geotechnical engineers work on a wide array of projects, ranging from small retaining walls or pavement projects, to construction of dams, canals, and foundations for bridges and high-rise...
The Leaning Towers of Wilmington, Delaware: Emergency Response and Retrofit of the I-495 Viaduct to Address Lateral Squeeze
On a sunny, summer afternoon last June, the project manager for AECOM's open-end bridge design contract with the Delaware Department of Transportation (DelDOT) received an...
Calendar: Bridges 2016
Featured bridges are: Irondequoit Bay Outlet Bridge (Irondequoit, New York); Dongshuimen Bridge (Chongqing, China); South Grand Island Bridge(s) (Grand Island, NY); Salmon Bay Bridge (Seattle,...
A Foundation Engineering Trip Down the Mississippi: Foundations for Mississippi River Bridges from Minnesota to Louisiana
Huckleberry Finn had his adventure, but for those interested in foundation engineering, this article will float you down the Mississippi River on your own encounter with the many bridges...
Spread Footings Revisited: Geotechnical Advances Lead to Expanded Use for Bridge Abutments
The Minnesota Department of Transportation (MnDOT) has historically used steel shell piles to support highway bridge structures, probably due to a blend of familiarity and efficiency among...
Screw Piles and Helical Anchors: 180 Years of Use in Geotechnical Engineering
Since 1836, screw piles and screw cylinders have been used successfully throughout the world to support a variety of large-scale, civil engineering structures. Their development and use...
Foundation Engineering...102
Most of our textbooks still separate foundation options into two simplistic categories: shallow or deep. That's why so many of us are geared toward thinking about the foundation...
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...
National Usage of Geosynthetic-Reinforced Soil to Support Bridges
The Geosynthetic-Reinforced Soil Integrated Bridge System (GRS IBS) was developed by the Federal Highway Administration (FHWA) almost 20 years ago to help meet the demand for the next...
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