Dive Brief:

  • The Maryland Transportation Authority (MDTA) has chosen the joint undertaking team of Skanska, Corman Kokosing Design and McLean Contracting to style and design and create a new $463 million bridge over the Potomac River connecting southern Maryland and northeastern Virginia. AECOM is the project’s direct designer.
  • Design will start off up coming thirty day period on the 1.9 mile-prolonged, 4-lane bridge over U.S. Route 301 that will change the Governor Harry W. Wonderful Memorial/Senator Thomas “Mac” Middleton Bridge, which is utilised by about 18,000 autos each day. The twelve-foot-huge lanes with 2-foot shoulders will double ability and increase safety, enhancing emergency response and upkeep/inspection routines, according to MDTA.
  • The new bridge, which will be crafted up coming to the current just one, will be total by the stop of 2022, after which crews will demolish the old bridge by December 2024, according to Wade Watson, project director and vice president of functions for Skanska Usa Civil. The demolished bridge will be utilised as an artificial reef, a technique Skanska has utilised on prior bridge tasks.

Dive Insight:

Maryland Gov. Larry Hogan has prolonged been committed to building a new, broader and safer bridge to change the two-lane Wonderful/Middleton span, which opened in December 1940 and connects Charles County, Maryland, to King George County, Virginia. According to Wade, the new concrete and metal bridge will have a one hundred-calendar year assistance lifestyle. The bridge also will consist of quite a few safety enhancements for bicyclists, like bicycle-friendly roadway joints and smart transportation techniques tools this kind of as lighting and signage.

The bridge challenge is just one of Maryland’s largest transportation initiatives. Virginia will contribute $thirteen million to the challenge.

The style and design-create method will make feeling for a challenge of this dimensions, Wade instructed Design Dive.

“One of the principal benefits it brings is enormous time financial savings,” he claimed. “On a typical style and design-bid-create the proprietor would have to go out and rate the challenge and negotiate a deal soon after it’s been built. With style and design-create you can be developing at the identical time you’re building.”

When the new bridge and roadway building are total, the current bridge will be demolished and utilised to build artificial reefs in the Chesapeake Bay watershed. These artifical buildings mimic some of the attributes of a purely natural reef, according to the Nationwide Oceanic and Atmospheric Administration, and are frequently composed of building materials like rocks, cinder blocks, concrete, wood and tires. 

The reef method has been utilised by Skanska for decades, Watson claimed, most a short while ago on the Pensacola Bay Bridge project in Florida.