I don’t think there is anyone in the construction industry that has a better marketing department than Priestly Demolition, a demolition specialty contractor based in Ontario, Canada. Their Youtube channel is filled with high quality demolition videos in the form of timelapse videos and even a 24 minute long, highly detailed video of a bridge demolition so impressive it won awards for best in the world. Implosion videos are a great source of entertainment in their own right, but the videos that Priestly put out are not only entertaining, but also great for education purposes.
Their most recent demolition video is a 10-minute, narrated video, which explains how the team demolished a bridge over the Severn waterway without allowing any concrete to fall into the river. In order to do so, Priestly had to install a barge underneath the bridge to catch debris and also act as a platform for the heavy equipment. An additional “catch-all material” was also installed on each side of the barge to catch any material that could fall off the platform.
Safety was a top priority during the demolition, especially due to the freezing water that workers will be surrounded by in the cold Canadian winter. The barge was equipped with guardrail all around it, workers were required to wear life vests, and emergency boats were always close by in case someone fell in.
The arched bridges were first dismantled on top, reducing the total weight as much as possible, without damaging the support structures below. The process would ensure that the barge does not collapse due to too much weight collapsing onto it. Once the first bridge demolition was completed, the barge platforms were unhooked from each other and allowed to float south to a second, smaller bridge.
All in all, it was an interesting look at a demolition process that had to take into consideration a lot of different challenges. What did you think of the process? Tell us in the comments below!
It’s pretty amazing the work that can get done when a lot of resources and money are thrown at one project. Past examples of this include a gigantic sinkhole that was repaired in Japan in just under a week, the complete emergency rebuild of Atlanta’s I-85 overpass that was completed a month ahead of schedule, and this video of 116 excavators working side by side to demolish a 1,640 foot long overpass overnight.
Cameras are EVERYWHERE these days. They’re on sites documenting the full construction process of your project, they’re on projects taking 360 degree progress footage, and most importantly, they’re in your pocket on your smartphone. Having a camera in your pocket at all times can be a good or bad thing, especially for employers, because not only can it make lives much easier for communication and documentation purposes, but it also gives people the chance to show the world when things go absolutely terribly.
With cranes being on many construction sites, it’s easy for workers to get complacent. Hundreds or thousands of construction materials can be lifted by cranes throughout the project, but all it takes is one time for a disaster to occur.
In regards to timelapse videos, it was a big year for sports arenas and the city of Atlanta, Georgia. These types of videos have become more popular in recent years due to the wide availability of documentation services available. Not only that, but civilians who own drones have also taking a liking to their area’s construction sites.
Take a look below at our 7 favorite construction timelapse videos from 2017:
This year saw more videos with environmental considerations taken into account, especially over waterways. Instead of imploding entire bridges, the part that spanned over top of the waterway were manually removed. I've also grown an appreciation for in-depth footage of demolitions that occurred under some interesting conditions. Some of the videos below show some extreme creativity to overcome obstacles.
On Sunday, demolition contractors tried to bring down the upper portion of the Pontiac Silverdome, former home to the Detroit Lions, but several of the explosives didn’t ignite and the structure was still upright after the smoke cleared. After videos of the failed demolition were posted online, the internet had a field day.
The Pontiac Silverdome was the home to the NFL’s Detroit Lions from 1975-2001 and NBA’s Detroit Pistons from 1978-1988. After the Lions opened their new Stadium in 2002, the Silverdome was passed around several times before it closed for the last time in 2013. Earlier this year, the building was condemned and the first round of demolition by implosion was scheduled for Sunday, December 3.
Construction timelapse videos make extremely complicated and long projects look much easier to build than they actually are. The recently opened Louvre in Abu Dhabi took 8 years to complete, but you can watch the full process in only 3 minutes.