As America’s infrastructure is continually described as “crumbling,” I thought it would be a good time to take a look back to how highways were paved around 70 years ago. A lot has changed in the past seven decades, but you might be surprised by how similar paving still is.
In the video below, uploaded to YouTube by “US Auto Industry” and titled “Building a Highway (1948),” you’ll see the complete steps to paving a US highway with concrete. Depending on your geographic location, concrete may or may not be more prevalent on your local highways than asphalt.
The general process of building a highway hasn’t changed very much over the past 70 years. It all starts with surveying, then rough grading, followed by finish grading, and pavement. The machines look generally the same, albeit they’re in color now and also vastly more complicated with electronics and other technologies built in.
This is also only one example of a highway in the 40s, but the biggest differences that were evident were the lack of a stone base underneath the pavement, smaller gauge steel reinforcement, and much greater on-site material mixing.
Check out the video below and let us know what you think!
Falls on the jobsite is the leading cause of injuries and fatalities in construction. Keeping up with housekeeping on your site is a great way to reduce risks of falls, but other protections, like rebar caps should be installed when rebar is exposed. A young construction worker recently found out the hard way what happens when rebar is left exposed.
Completed in 1976, the CN Tower in Toronto, Canada held the record for the tallest freestanding structure in the world from 1975-2007, until it was supplanted by Dubai’s Burj Khalifa. At its highest point, the CN Tower, which is mainly used as a communications and observation tower, reaches 1,815.4 feet (533.33m). Last year, the tower underwent a $16 million renovation and Priestly Demolition shared a fascinating, in-depth video for how they took care of the demolition of the interior space and walls.
Cranes collapsing on-site are serious business, especially since many of them resulted in the loss of life. A recent crane collapse on a construction site in Alpharetta, GA was caught on camera after it caught fire, but luckily no one was injured.
There are a lot of different specialty construction contracting sectors within the industry and cruise ships are definitely one of them. There are plenty of unique challenges when dealing with a moving ship versus a static building. A recent accident highlighted the challenges when a crane collapsed on a cruise ship under renovations, injuring 8 people.
Almost 7 years ago, construction began on the west side of Manhattan’s $20 billion mixed-use development. On March 15, 2019, Hudson Yards, as the development is known, has officially opened.
Demolitions by implosion can be fun to watch when they go right – or wrong – but nearby residents can be greatly affected by the high powered blasts and huge clouds of debris that follow. A few years ago, a botched demolition in England left dozens of nearby residents unable to return to their homes for several days. Last week, an obsolete Steel Basic Oxygen Plant in Weirton, West Virginia is leaving residents in a similar situation.
Traditional safety training for construction workers includes OSHA 10-hour or 30-hour courses, toolbox talks, and safety inspections. Those training techniques are all important and necessary, but construction workers are an extremely hands-on group of individuals and putting them in real life situations can be much more beneficial to them instead of classroom training.
Over the years, Liebherr, the German Crane Manufacturer, has given us some absolutely amazing videos. For example, they put on a show for their best customers one year and lifted one crane with another crane, which was lifted by a third crane, which was then lifted by a fourth crane. Another video highlighted the 58 cranes that were on site at the same time at the world’s largest airport build in Istanbul. Well, the company is back at it again, this time on top of Europe’s new tallest building.
When we think about historic buildings of ancient times that are still standing, we can stand in awe of the level of detail that was incorporated into designs without modern tools and technology. For a few decades, it seemed like we would never see that type of character in buildings again, but sports stadiums are becoming new modern wonders, pushing the limits of not only what’s capable from a construction standpoint, but also the budgets.