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The Infrastructure Show consists of monthly podcasts in which some of the nation’s top infrastructure experts discuss with host Professor Joseph Schofer of Northwestern University the condition of our infrastructure today, and what can be done about it. While many subjects are addressed, including repairs, upgrades and new construction, there is an emphasis on the topics of preventive and predictive maintenance, as well as “structural health monitoring” – a special focus of the Northwestern Infrastructure Technology Institute, of which Dr. Schofer is Director.
119 Episodes
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Dam failures are frightening, and they can become disasters. Just how common – or uncommon – are the failures of dams in the U.S.? What are the contributing factors and are there ways we mitigate them?
To learn the facts about dam
The Eads Bridge, opened in 1874, is the oldest functioning bridge across the Mississippi River. This St. Louis crossing, named after its designer/builder, James Eads, pioneered the use of steel, then a new material; the construction of long-span
Intercity bus terminals are key links in the national bus network. We’re losing some these terminals due to pressures for more lucrative land uses. The announced closing of Chicago’s downtown Greyhound station will be impactful because about half
Scientific research needs supporting infrastructure – some small, some big, but rarely simple. The Deep Underground Neutrino Experiment – DUNE – will study the neutrino, one of the smallest atomic particles that is a
Bridge inspectors like to get up close and personal to detect small defects that could grow into disasters. The configuration of bridges – their size, height, and locations – can make the job difficult and dangerous. But rapid advances in aerial
GPS, the Global Positioning System, is now half a century old. This extraordinary technological advance routinely guides planes, ships, trains, automobiles, bikers and pedestrians with high precision. A Defense Department
Almost every major system we rely on seems to be vulnerable to cyberattacks from scammers, criminals, and nation states threatening our national security. Reports of cyberattacks disrupting and even destroying critical infrastructure systems are
Energy from wind and solar sources is available when nature permits, but the demand for energy is based on the cyclical needs of people and their activities. To make renewable energy work, and to manage the normal daily mismatches between supply and
In very cold places, like Alaska, Northern parts of Canada and Europe, building infrastructure means building on permafrost, perennially frozen ground. Permafrost provides reliable foundations for buildings and highways as long as it remains frozen.
Spectacular bridges can be focal points of their host cities, reminding us that unique infrastructure can also be unique art. Lighting those bridges can carry their aesthetic value into the night. In 2013, the San Francisco-Oakland Bay Bridge was
The Port of Duluth-Superior, located at the western end of Lake Superior, is a national and international cargo hub, serving the Great Lakes and, through the St. Lawrence Seaway, the rest of the world. It supports flows of bulk cargoes such as grain,
Some U.S. Cities are taking back streets from exclusive use by motor vehicles to protect and prioritize vulnerable road users – pedestrians and bicyclists – and to enhance neighborhood livability. This process is advanced under the banner of
PFAS, per- and polyfluoroalkyl substances, the forever chemicals, are commonly used as protective coatings because they resist heat, stains and water. Because PFAS do not normally degrade in the
1On June 11, 2023, a gasoline truck caught fire under I-95 in Philadelphia, essentially melting a major section of the primary roadway through the center of the Northeast Corridor. Facing what looked like a months-long reconstruction process, the
Fluctuations in water levels on our inland waterways system can affect the movement of bulk freight, particularly agricultural products. Low waters, as occurred in the fall of 2022 on the lower Mississippi River, limited the flow of freight and
The 150-year-old Baltimore and Potomac Tunnel, Amtrak’s oldest, carries traffic for Amtrak, the Maryland Area Rail Commuter (MARC) Service, as well as Norfolk Southern freight operations. This tunnel is a major bottleneck
US railroads are highly efficient at moving freight. Indeed, our freight rail system is the envy of the world, but sometimes accidents occur. When train derailments occur, the outcome is usually minor, but occasionally more serious problems
Wood has been perhaps the most common material for buildings for millennia, but innovations in its application are bringing new opportunities and advantages for working with this sustainable material. Structural applications of mass timber are
Changing climate brings new risks to infrastructure, and commonly these risks are shared with insurance companies. To control their risks, insurers need to understand and anticipate both the sources and characteristics of natural threats, and to
COVID-19 has robbed public transit of riders as many have changed workplaces, shifted schedules, and chosen new ways to travel to avoid crowds. Transit operators around the world are working to attract commuters back,
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