John Hennessy III,
P.E.
It is somewhat challenging to list all the components of water infrastructure. The Environmental Protection Agency (EPA) defines the term as “all man-made and natural features that move and treat water.” And because it takes all types of systems and networks to deliver clean drinking water and preserve water resources, it is difficult to identify […]
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by Mary Scott Nabers New York City declared a state of emergency recently because of damage from the extraordinary flash floods, which destroyed streets, devastated property and completely upended mobility. Delivering over seven inches of rain in one day, the weather event was one of the most impactful disasters ever experienced by the city. Data released […]
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by Mary Scott Nabers Hurricane season officially began in June and will continue through November. Weather watchers, public officials and first responders will be highly focused on storm threats for the next few months. Tropical hurricanes can develop anytime but are more common during the Atlantic hurricane season. To help public officials prepare for, recover from […]
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Voters and lawmakers alike have championed smart infrastructure policy and increased investment in our multimodal freight system, drinking water networks, and more. This down payment on our infrastructure bill has contributed to modest but meaningful improvements.
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An Associated Press investigation has found that thousands of people in the U.S. may be at risk from aging dams that are in poor condition. The two-year investigation identified 1,688 ‘high hazard’ dams in 44 states and Puerto Rico. (Nov. 11)
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Dams serve a wide variety of purposes from hydropower to flood control to storage of water for municipal and industrials uses. But when a dam’s useful purpose fades away, the structure itself still remains. Dams come in all shapes and sizes, but contrary to what you might think, the most dangerous dams are often the […]
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The challenges of underwater engineering are remarkable, but technology is driving innovation. Underwater engineering is not for the faint of heart—or the short of breath. These projects require advanced know-how, sophisticated technology and a willingness to push the boundaries of conventional thinking— and engineering.
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A weir is a small dam built across a river to control the upstream water level. Weirs have been used for ages to control the flow of water in streams, rivers, and other water bodies. So how do they work?
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Take a special access tour of the Hoover Dam, in cooperation with the Department of the Interior. An amazing look at this incredible structure that was built in 1930’s.
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Bridges and other structures fall down relatively often, and every time it happens we wonder if we could have known earlier that there was a problem. What if we could use images from satellites to predict when (and what) might be at risk? Sakthy Selvakumaran is here to show us how. Sakthy Selvakumaran has worked as a civil and structural engineer in multiple roles, continents and cultures before returning to academia.
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