MDOT is working on a new design for the Maryland Parkway, which has been under construction since 2011.
The project includes replacing four lanes of traffic in the median and widening one lane to four lanes.
The redesign of the Maryland Toll Road, which connects Baltimore to Washington, is expected to be complete by 2020.
It will include new lanes and intersections along the Maryland Turnpike, which will connect the state’s capital with Montgomery, Prince George’s and Baltimore City.
The project will cost $2.7 billion.
The Maryland Turn pike was built by the Maryland Department of Transportation and is the state highway system for Maryland, the District of Columbia, the Maryland Bay, the Prince George´s and Baltimore metropolitan areas.
The Maryland Turn and Pedestrian bridges will be added to it in 2021.
The bridge, which was built in the late 1970s and was not completed, carries about 2 million people a day.