The Laborers International Union, one of the largest labor organizations iin North America, are bringing their national campaign for more federal investment in infrastructure to Maryland.

The union will launch the drive in Baltimore Tuesdayy with a  rallly near the  site of the Wlkens Avenue Bridge at Hurley Avenue -- one of  those in Maryland classified as "functionally obsolete." The group is planning billboards, radio ads and other efforts to spread its message about a need to spend more on transportation, energy, water and school facilities.

Similar campaigns have also been mounted in Colorado, Connecticut and Indiana. The union estimates that an aggressive pllan to build infrastructure coulld yield 61,000 jobs in Maryland over five years.