Investigators find a series of flaws at every level in the 'conception, design, construction and maintenance' of New Orleans' levee system.
Among the findings:
- At least two, and possibly three, of the breaches that took down storm walls in the city during the hurricane resulted from design flaws involving weak soil conditions, according to Raymond Seed, a UC Berkeley engineering professor who is leading the investigating team.
- Levees also failed because they were designed and built in the late 1980s and 1990s without adequate safety margins, said Bea, a civil engineering expert. The safety margins, intended to give levees an extra measure of strength, were set far lower than the protective margins typically used for such critical projects as bridges, hospitals and dams.
FULL STORY: System Failures Seen in Levees
Manufactured Crisis: Losing the Nation’s Largest Source of Unsubsidized Affordable Housing
Manufactured housing communities have long been an affordable housing option for millions of people living in the U.S., but that affordability is disappearing rapidly. How did we get here?
Americans May Be Stuck — But Why?
Americans are moving a lot less than they once did, and that is a problem. While Yoni Applebaum, in his highly-publicized article Stuck, gets the reasons badly wrong, it's still important to ask: why are we moving so much less than before?
Using Old Oil and Gas Wells for Green Energy Storage
Penn State researchers have found that repurposing abandoned oil and gas wells for geothermal-assisted compressed-air energy storage can boost efficiency, reduce environmental risks, and support clean energy and job transitions.
Minneapolis Bans Rent-Setting Software
Four cities have enacted restrictions on algorithmic software that can inflate rent costs.
Oakland to Add 244 New EV Chargers
Oakland plans to launch its new charging network at eight locations by the end of 2025.
Jane Goodall Inspires with Message of Hope, Resilience, and Environmental Action
Speaking in Pasadena, Jane Goodall offered a hopeful and inspirational message, urging global compassion, environmental responsibility, and the power of individual action to shape a better future.
Urban Design for Planners 1: Software Tools
This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.
Planning for Universal Design
Learn the tools for implementing Universal Design in planning regulations.
Heyer Gruel & Associates PA
City of Moreno Valley
Institute for Housing and Urban Development Studies (IHS)
City of Grandview
Harvard GSD Executive Education
Salt Lake City
NYU Wagner Graduate School of Public Service
City of Cambridge, Maryland