Moving Down the Road of Progress: Geosynthetics Subdue Failures on Expansive Clays and Frost-susceptible Soils
Using geosynthetics in roadway projects has provided sustainable alternatives for reconstruction and maintenance and now represents a significant portion of the total geosynthetics market. Geosynthetics...

Highway Embankment Failure on Soft Clay: Bad Input = Bad Output
Our ability to analyze and compute 2D and 3D factors of safety for embankments and slopes, including finite element and finite difference analyses, has increased greatly in the last decade. However, use...

Flexible Rockfall Barrier Post Support Performance: Deflection as a Positive Attribute
Rockfall has plagued infrastructure for centuries, whether generated by natural weathering of unaltered rock slopes or due to jointing and weaknesses in constructed rock slopes. Rockfall in the U.S. has...

Charting A Course To Resilience: Geotechnical Efforts Enhance New Jersey’s Navigation System
The New Jersey (NJ) Marine Transportation System (MTS) is comprised of roughly 500 nautical miles of engineered waterways, thousands of docks, berths, and ramps, and two internationally significant ports....

Delivering a Masterpiece
The new Kosciuszko Bridge, also known as the K Bridge, is a twin-span, cable-stayed structure that traverses Newtown Creek, linking the New York City boroughs of Brooklyn and Queens via the Brooklyn–Queens...

Bridging History
The Pennsylvania Department of Transportation recently rehabilitated the Frankford Avenue Bridge, also known as the Pennypack Creek Bridge. This stone-arch structure, originally built circa 1697, is the...

Forever Frozen? Future Challenges for Ground
On a typical day, in a typical town, in a city almost anywhere in North America, roads and highways are filled with people going about their everyday business — commuting to work, delivering goods and...

We Struck Water! Discovery of Artesian Groundwater Solves A 50-Year-Old Landslide Puzzle
Some unstable slopes fail dramatically, but most can be characterized by gradual, if not monotonously slow, movements. Yet these latter situations can pose a dilemma when a temporary repair is much simpler...

A Faster, Cheaper, Better Way to Build a Wall: How a Simple Highway Widening Led to a Patent
When first opened in 1940, and as segments were later added to it, the Pennsylvania Turnpike (Turnpike) was principally a four-lane highway with two eastbound and two westbound lanes. As traffic volume...

Rapid Recovery
In May 2017, the California Department of Transportation had to contend with a massive landslide that closed a section of the iconic State Route 1 through central California’s scenic coastal region of...

When Bridges, Roadways, and Dams Need Our Help: Innovative Techniques Can Help Save Our Nation's Critical Infrastructure
The nation's infrastructure is showing its age. The signs are obvious with structure distress, lack of functionality, and failure reported frequently over the last several decades. Specialty geotechnical...

What to Do about an Awakened Ancient Landslide: Solving a 75-Year-Old Problem along America’s First Super Highway
In school, we all learned that several factors can contribute to cause a mass of earth to landslide. But with more experience, it becomes clear that these factors must work together to mobilize a landslide....

A Good Cause for a Causeway: How Geotechnology and Project Delivery Restored a Roadway Embankment Crossing a Historically Challenging Soft Ground Site
As part of a Minnesota Department of Transportation (MnDOT) design-build project, a causeway was constructed in 2017 to replace an aging bridge in the southwest metropolitan area of Minneapolis. The causeway...

Risky Business: Identifying an Acceptable Rockfall Standard
For many parts of the U.S. highway system, cut slopes in rock are as common as bridges and embankments. These cut slopes, as well as some natural ones, produce rockfalls that pose risks to highway conditions...

Rock Glue Gets the Job Done: Reducing Rockfall Hazards along the G.W. Parkway
After a large rockfall damaged the road and disrupted traffic along the George Washington Memorial Parkway in 2002, the National Park Service was looking for solutions to stabilize the slope against additional...

Journal of Transportation Engineering, Part A: Systems
The Journal of Transportation Engineering, Part A: Systems contains technical and professional engineering articles on the planning, design, construction, operation, and maintenance of air, highway, rail,...

Journal of Transportation Engineering, Part B: Pavements
The Journal of Transportation Engineering, Part B: Pavements will contain technical and professional articles on the planning, design, construction, maintenance, and operation of airport, roadway and other...

Translating the Language of Soils: Developing a Soil Classification System for International Engineering Projects
Soil classification systems are used to help predict soil behavior and provide information to farmers, engineers, builders, agricultural extension agents, homeowners, community planners, and government...

Highway Retaining Walls are Assets: A Risk-Based Approach for Managing Them
Throughout history, retaining walls (RWs) have served a vital role in supporting civil infrastructure. The ruins of dry stone walls that purportedly supported the hills and slopes of ancient Rome can be...

Geotechnical Instrumentation for Roadways: Shifting from Manual to Automated
Geotechnical instruments, including inclinometers, piezometers, settlement plates, etc., have long been used during and after construction to monitor performance of transportation infrastructure, including...

 

 

 

 

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