Maryland Route 200 (MD 200), also known as the Intercounty Connector or ICC, is an , six-lane toll road in the U.S. state of Maryland. A controlled-access highway, it connects Gaithersburg in Montgomery County and Laurel in Prince George's County, both of which are suburbs of Washington, D.C. The ICC was one of the most controversial Maryland road projects; opposition to the highway stalled the project for decades, and construction did not begin until 60 years after the highway's initial approval. The highway was originally proposed in 1950, was in length, and part of the Washington Outer Beltway. While other parts of the Outer Beltway were canceled, the ICC and the Fairfax County Parkway remained on master plans. The road's long history as an unbuilt proposed road stems from the controversy that has surrounded it over the years, including the cost of about $2.38 billion to complete the highway and related environmental mitigation. Proponents of the highway claimed that it would improve the flow of interregional traffic, relieve traffic congestion on local roads, spur economic development, and enhance access to Baltimore-Washington International Airport. Opponents of the highway claimed that the road would instead harm significant traffic flow characteristics, negatively harm the environment, and disrupt established communities through which it passes. They also argued that "environmental degradation would immediately occur from the construction (loss of forests, wetlands, and animal habitats), [and instill] long-term consequences (air pollution and carbon emissions from additional driving, more sprawl development, less money to fund mass transit projects, etc.)." Fulfilling a 2002 campaign promise, Maryland Governor Robert Ehrlich pushed to begin construction of the road and conducted a formal groundbreaking in October 2006. With additional support from his successor, Governor Martin O'Malley, construction began on November 13, 2007. The first segment, from Interstate 370 (I-370) to MD 28, opened on February 23, 2011, while the extension to I-95 opened on November 22, 2011. The final segment to U.S. Route 1 (US 1) opened on November 7, 2014. MD 200 uses all-electronic tolling, with tolls payable through E-ZPass or Video Tolling. Route description MD 200 begins at a trumpet interchange with MD 200A (Metro Access Road), which heads south to provide access to Shady Grove Road and the Shady Grove station serving Washington Metro's Red Line, near Gaithersburg in Montgomery County; west of this interchange the freeway continues as I-370 toward MD 355 and I-270. Several new ramps