Adventures in Managing Water
Real-World Engineering Experiences
Sponsored by the River Basin Planning, Policy, and Operations Technical Committee of the Planning and Management Council of the Environmental and Water Resources Institute of ASCEAdventures in Managing...

Pumping Up Flood Defenses
Completed in April 2018, the $731-million Permanent Canal Closures and Pumps project represents the final component of the overall Hurricane and Storm Damage Risk Reduction System that serves the greater...

A Landmark's Legacy

Making It Work: Up and Over
Located at the heart of Salt Lake City's financial district, 111 Main is a 24-story, 501,455 sq ft Class A office tower that anchors a larger urban redevelopment project in the area....

Double Duty: Approach Structures
The new Sarah Mildred Long Bridge, which connects the cities of Kittery, Maine, and Portsmouth, New Hampshire, features precast, posttensioned concrete, segmental box girder approaches in a stacked configuration...

Crossing the Forth
Scotland’s Queensferry Crossing spans the Firth of Forth, connecting Edinburgh and the Kingdom of Fife. Built at a cost of $1.89 billion in six and a half years, the 1.6 mi long cable-stayed bridge, with...

Reliability-Based Design (RBD) For Everyone: (No Monte Carlo Simulation Required!)
In North America, the design of earth structures for transportation applications is most often carried out using load and resistance factor design (LRFD). In the U.S., the AASHTO LRFD Bridge Design Specifications...

Micropiles Support the "Missing Link": Understanding Load Transfer in Challenging Subgrades
Authorized by Congress in 1944, the Foothills National Parkway partly traverses the foothills of the Great Smoky Mountains in Eastern Tennessee. Large sections of the parkway cross high ridges located...

An Unknown-Unknown Does In An Overpass: A Soil Stockpile on Soft Clay Is Too Much for a Bridge in Canada
Like most structures, bridges are designed for an array of loading conditions. Some loads are known or can be reasonably estimated with confidence (i.e., known-knowns, such as structure dead and vehicular...

Lava Tubes as Resilient Extraterrestrial Habitats: An Option For A Permanent Human Settlement Beyond Earth
The design, construction, and maintenance of safe and comfortable habitations are some of humankind’s oldest and most important activities. Millennia of experimentation and planning have led to earthly...

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...

Failures Inspire Progress: Protecting Sensitive Buildings from Tunnelling
Tunnelling in urban areas is always a challenge, and it’s especially so when construction is proximate to densely populated districts. Such was the case on January 25, 2005, when a 10-m length of a Barcelona...

The State of Soil Improvement in China: The G-I Soil Improvement Committee’s China Scan Tour
During the last four decades, China has made significant improvement in various sectors of its infrastructure, including high-speed railways, long-span and cross-sea bridges, large dams, long- and large-diameter...

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...

Connecting Continents: Challenges of the Eurasia Tunnel in Istanbul
The Eurasia Tunnel, the first bored tunnel crossing of the Istanbul Strait (Bosphorus) in Istanbul, Turkey, is a site that presents many unique challenges, including very poor ground conditions, unusually...

Advances In Geosynthetic Solutions For Sustainable Landfill Design: Geosynthetics Really Do Last!
Even though geosynthetics are now a well-established discipline within geotechnical engineering, ingenuity continues to play a significant role in projects involving their use. This is because it’s possible...

Geotechnics of the Suez Canal Construction: 150 Years Old, but Nearly Four Millennia in the Making
Construction of the Suez Canal created one of the most important waterways in the world, connecting the Mediterranean and Red Seas. Its construction from 1854 to 1869 created three cities, Port-Said, Ismailia,...

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...

Replacing an Icon
Since 1852, the Portage Viaduct has carried a rail line across the Genesee River Gorge, near the town of Portageville, New York. First made of timber, then replaced with a wrought iron structure after...

Digital Water Cooler
To keep employees connected across geographically dispersed offices, help them share knowledge and technical resources, and just better understand their company and their clients, many engineering firms...

 

 

 

 

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