In 1989, after a section of the original Bay Bridge sustained major damage during the Loma Prieta earthquake, it was determined that the San Francisco-Oakland Bay Bridge needed to undergo a major seismic retrofit, ultimately reinforcing and rebuilding every section of the bridge.
The San Francisco–Oakland Bay Bridge project is all about doing it big: from the average number of vehicles using the bridge daily (280,000); to the world’s longest singletower, self-anchored suspension (SAS) span on a bridge and world’s largest concrete pump; to the amount of steel and concrete used.
As it first did 76 years ago, the Hoover Dam is again making its mark in history books. Crews are conquering an engineering feat by constructing the most technically challenging bridge ever to be built in North America, the Colorado River Bridge.
The Gwinnett Braves, the AAA minor league baseball team of the Atlanta Braves, rallied a new line-up in 2009 that included a new name, a different state and a brand new stadium.
Lifting 3.3-million pound precast beams into place proved to be a challenging task for contractors trying to meet an aggressive May 1 deadline on the new Florida Marlins stadium.
Las Vegas continues to invest in culture and the arts with The Smith Center for Performing Arts, a $245 million complex that will house multiple theaters and arts educational facilities.
Set to top out at 1,386 feet in spring 2012, the high rise is being constructed with two concrete cores and concrete on metal decks utilizing an innovative placing system.
The National September 11 Memorial & Museum at the World Trade Center (WTC) in New York City will memorialize the nearly 3,000 people who died in the WTC bombing on February 26, 1993, and the horrific attacks on September 11, 2001.
In a winter that has had many construction companies in the U.S. fighting the cold and snow and the resultant delays in concrete pumping, there is one pumping project that relies on sub-freezing temps to get the job done.
Work continues on the final stages of the new ACPA Operator Safety Presentation DVD, which will become the mandatory education requirement beginning January 1, 2012 for all operators seeking ACPA certification or recertification.
If you own a concrete pumping business in the state of California, you’re probably held to some of the most intrusive and complicated regulations than all of the other 49 states—especially when it comes to complying with California’s stringent diesel emission regulations.
Beginning January 1, 2012 a new element to the safety training education requirement for ACPA Operator Certification will be added to include completion of the ACPA Operator Safety Presentation Program.
As a requirement for ACPA Operator Certification, operators must fulfill ACPA sanctioned safety training. Fulfillment of this training requirement will be available in one of three ways:
The U.S. Department of Labor has made a change to the Federal Code of Regulations regarding crane safety.While concrete pumps are specifically excluded from the new regulations, the hazards for cranes and pumps are similar, including booming into power lines.Like cranes, the number one cause of fatal accidents with pumps is electrocution.
