. "The origins of the Metro Subway lie in a transit plan drawn up for the Baltimore area written in 1966 that envisioned six rapid transit lines radiating out from the city center. By the time this vision began to be translated into reality, construction costs in the United States had raised to the point of making transit construction prohibitively expensive, and there was less federal money available for transit projects than had been in the past. When the Metro Subway finally opened in 1983, it was only a single line, the \"Northwest\" line of the 1966 plan. Service was provided between Charles Center in downtown Baltimore and Reisterstown Road Plaza in the northwest section of the city. (A decade later, much of the \"North\" and \"South\" lines of that plan would come into existence as the Baltimore Light Rail.) In 1987, an extension from Reisterstown Road Plaza to Owings Mills in Baltimore County was added, much of it running the median of I-795. In 1994 a further extension from Charles Center to Johns Hopkins Hospital in Baltimore City was also opened. This last extension was an extremely truncated version of the 1966 plan's \"Northeast\" line. The current system is 15.2 miles (24.5 km) long, including 6.2 mi underground, 2.2 mi elevated, and 6.8 mi at grade. Once the project was completed in 1994, the total cost for the Metro Subway was $1.392 billion."@en . "Baltimore Metro Subway"@en . . . . . "vertical"@en . "Metro Subway.svg"@en . "The origins of the Metro Subway lie in a transit plan drawn up for the Baltimore area written in 1966 that envisioned six rapid transit lines radiating out from the city center. By the time this vision began to be translated into reality, construction costs in the United States had raised to the point of making transit construction prohibitively expensive, and there was less federal money available for transit projects than had been in the past. When the Metro Subway finally opened in 1983, it was only a single line, the \"Northwest\" line of the 1966 plan. Service was provided between Charles Center in downtown Baltimore and Reisterstown Road Plaza in the northwest section of the city. (A decade later, much of the \"North\" and \"South\" lines of that plan would come into existence as the Balti"@en . . "right"@en . . "100"^^ . . .