Maryland Board of Public works in the USA has voted to approve the pre-development contract with Accelerate Maryland Partners (AMP). AMP consortium comprises Transurban and Macquarie Capital. The board approved a US$50 million contract to begin planning and designing the project and a 50-year lease of the toll roads on which AMP will collect the road tolls.

The US$6 billion toll lane project, if approved, would rebuild the American Legion Bridge, adding four high occupancy toll lanes for about 15 miles from the bridge to the I-270 interchange and up north to I-370 near Gaithersburg. It would also add toll lanes to a few spurs going east at the I-495/270 interchange. Most of the lanes would be built by repurposing current lanes. A later phase could add 21 miles of toll lanes on I-270 from I-370 to I-70 near Frederick. 

Governor Larry Hogan said: "We are advancing one of the most significant infrastructure projects of the last 50 years, and one of the largest public-private partnerships in the world. This Traffic Relief Plan is a win for families, commuters, and small businesses. It will finally begin to solve the soul-crushing, worst-in-the-nation traffic that people have failed to address for 50 years. This project has the support of the overwhelming majority of Marylanders, and was recently advanced by the regional Transportation Planning Board.”