Imagine buying a condo for millions of dollars only to find out that the building the surrounds it has sunk over a foot and has tilted 2 inches. You probably wouldn’t feel too good about your purchase, would you? The Leaning Tower of Pisa (or, as I thought it was called when I was 7, “The Leaning Tower of Pizza”) wasn’t supposed to lean either, but they were able to turn lemons into lemonade and make it into a gigantic tourist trap. That’s a luxury that I’m not sure the Millennium Tower in San Francisco has, unfortunately.
Opened in 2008, The Millennium Tower, a 58 story luxury high rise condo complex, is located on the North East corner of Downtown San Francisco. According to the San Francisco Chronicle, the residents have paid anywhere from $1.6 to $10 million dollars for a home inside the building. Curbed reports that San Francisco Giants right fielder Hunter Pence and Hall of Fame Quarterback Joe Montana even make their home there. Unfortunately, after 8 years of being open, the building has reportedly settled 16 inches and even tilted two inches, as opposed to the 6 inches it was expected to settle. From what I can gather from Google Earth (using this handy trick), that 2 inch drop occurs across approximately 419 feet, which is a 0.0397% slope (update: slope percentage was corrected on 8/10/16). Although not an immediate safety risk, it’s definitely a cause for concern, especially in a city with a high risk of earthquakes, like San Francisco.
The building owners, Millennium Partners, have placed the blame upon a giant hole dug adjacent to the property by the Transbay Joint Powers Authority (TJPA) which is the start of a new transit center, according to Curbed. The TJPA, however, has denied any responsibility for the condo’s settling issues and released a two page press release stating their investigation findings. According to the TJPA, the builders of the Millennium Tower failed to adequately support the heavy concrete structure down to the bedrock, around 200 feet below grade. The San Francisco Chronicle reported that the piles were only driven 80 feet down, which the TJPA referred to as “soft, compressible soil,” which is not surprising given the short distance to the shoreline. The TJPA also claimed that, when their work on the new transit center began in 2010, the Tower had already settled 10 inches.
This is all shaping up to be a long and costly legal battle to determine the responsible authority. According to Alex Barthet, a construction lawyer in Florida, “it is never easy to determine fault and who may be accountable for needed repairs. There are latent and patent defects, express and implied warranties – enough legal theories to make your head spin. But if negligence can be shown, everyone from the unit purchasers to the developer may have claims for construction defects. And if that’s not enough to complicate matters, rushing off to repair the problems isn’t without its own risks, legally. It could be a mistake to fix a mistake if evidence is destroyed or if the repairs aren’t handled correctly.”
Anyone getting that sinking feeling?
As electric vehicles are becoming more and more popular around the world, researchers are trying to find ways to adapt the technology to heavier duty applications. Due to the large size of projects and amount of money in the industry, the mining industry has seen its fair share of technological advancement. Several manufacturers, like Komatsu, have developed and released driverless dump trucks for mining operations in the past few years. A team of companies in Switzerland is now working on a gigantic battery powered dump truck that will be tested for 10 years.
Rapid growth and the industrialization are the major contributors to China’s noted air quality issues. 4 years ago, the Chinese government issued a “war on pollution” aiming to improve air quality and reduce other environmental hazards, such as land and water contamination. Air quality is at its worst in the winter months across the country, due to households relying more on coal power to heat residents’ homes.
Hurricane Irma ripped through the Caribbean and landed in South Florida a little over a week ago, sadly killing at least 50 people in Florida and causing plenty of property damage. High winds that accompanied the storm also caused the collapse of 3 construction cranes – two in Miami and one more in Fort Lauderdale. The crane in Fort Lauderdale was recently dismantled and the action was caught on video.
After sharing average hourly wage data for construction laborers, ranked by state, a little over a week ago, I’ve decided to begin doing the same for the other many different construction related professions. Our second profession that we’ll be analyzing will be heavy equipment operators.
Asphalt is one of the world’s most popular pavement materials. Because of that, researchers and scientists are constantly looking for ways to improve upon it. Additives have been included in some asphalt mixes for years to improve strength, but recently researchers have been getting pretty clever with the types of additives they’re testing.
Video feeds on a construction site are not only great for timelapse videos, they can potentially help stop intruders who enter your site.
The construction industry is in need of workers and the industry is generally struggling to attract younger workers to the job site. There’s real money to be made in the construction industry, even more so than many other industries. According to the U.S. Bureau of Labor Statistics, the average yearly median pay for those in the construction industry was around $6,000 higher than all other occupations.
Construction crews all over the world unearth some pretty cool or very weird items, but sometimes crews find some extremely significant historical artifacts, as well. Last week, a contractor in Colorado made an extremely rare discovery that has many scientists very excited.
In June, we shared that OSHA was planning to extend the deadline for crane operator certification requirements until November 10, 2018. Last week, on August 30, OSHA made that official and issues a Notice of Proposed Rulemaking.
In October of last year, officials in Dubai held a groundbreaking ceremony for the Dubai Creek Tower, a building which is expected to surpass the reigning “tallest building” champion, the Burj Dubai. Flash forward just a few short months and over a million hours of labor have already been spent on the project, all accident free.