Just installed this past Saturday.
http://www.msn.com/en-us/news/us/sev...b7Kz&ocid=iehp
The bridge connects the university with the city of Sweetwater and was installed on Saturday in six hours over the eight-lane highway, according to a story that was posted on the university's website. It was 174 feet (53 m) long and weighed 950 tons.Is this a normal construction practice in the USA?
It took only six hours on Saturday to install the 174-foot pedestrian walkway...
In accelerated construction, most or all of a bridge project is fabricated off-site and then put into place all at once, ideally disrupting traffic for only a few hours or days.https://www.nbcnews.com/news/us-news...people-n857011
The protocol "can improve safety to workers and the public," Seema Javeri, a traffic operations and work zone safety manager for the Federal Highway Administration, said in a web conference on the technology in 2013.
"It's safer since construction workers are not working near active traffic for days on end, as with traditional approaches," Javeri said. "It saves the traveling public time in traffic delays and road closures, and it reduces construction season and time. With cost savings, there's improved quality of the product, and the accelerated project times can potentially reduce project costs."