By RICHARD MELDRUM, AP Baltimore (AP) Baltimore City’s Department of Transportation and Public Works says its $500 million redevelopment of a crumbling streetcar line will be a “major catalyst for economic development in the city.”

The $1.9 billion project is being overseen by the U.S. Department of Housing and Urban Development.

Its construction began in January and will last several years.

Its goal is to transform the aging streetcar line that once connected Baltimore’s west side with the waterfront, with about half of its new apartments and retail space.

The streetcar runs from the University of Maryland and the Inner Harbor to downtown.

Its last stop was at St. Marys in the Inner Belt, which is now an industrial park.

The first phase of the line is completed, with more than 60 percent of the streetcar’s stations set to open by 2021.