Sewer and water pipes across the nation are breaking -- creating a record number of sinkholes.
"Bad sewer pipes created this sinkhole. And the problem is getting worse, around the world and in the United States. Last year was the worst ever in the U.S. for sinkholes. Almost every state in the country experienced record problems...Most water and sewer pipes in the United States were built 60 years ago - but were meant to last 50 years. Do the math. Pipes are breaking as they get older...When pipes break, two things happen: Water or sewage gets out, and water or dirt gets in. Havoc results when dirt enters a broken pipe and is whisked away, as though on a magic carpet ride. Soon, even if only by a spoonful a day, the dirt disappears from above the pipe and below the sidewalk - or below the road, park, building, etc."
FULL STORY: The looming sinkhole crisis
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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.
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San Francisco’s Muni Ridership Grew in 2024
The system saw its highest ridership since before the Covid-19 pandemic, but faces a severe budget shortage in the coming year.
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In the face of potential federal funding cuts, CDOT leaders reasserted their commitment to planned bus rapid transit projects.
Safe Streets Funding in Jeopardy
The Trump administration is specifically targeting bike infrastructure and other road safety projects in its funding cuts.
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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.
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