Elaine Chao

Purple Line construction begins

Purple Line construction begins

Maryland launched construction on the Purple Line on Monday, the culmination of more than two decades of political and financial wrangling to build a transit line connecting the Washington suburbs.

The $2 billion, 16-mile light rail project is the largest public-private infrastructure project in the nation, state and federal transportation officials said. When complete, the 21-stop rail line will carry an estimated 41,000 passengers a day and generate more than 50,000 new jobs.

U.S. Secretary of Transportation Elaine Chao signed off on $900 million in federal funds to build the project this month. On Monday, she said other states should try to replicate Maryland’s model of...