Green Line extension wins praise from key federal overseer

BOSTON – A scaled-down design for the trolley extension to Somerville and Medford, aimed at reining in the project's bloated budget, appears consistent with the aims of the overall effort, according to a top official at the federal agency that pledged $1 billion to the earlier version.
In a Friday letter, Mary Beth Mello, regional administrator for the Federal Transit Administration, noted additional analysis is needed on the revised plans' accessibility, risks, and the state's ability to finance the endeavor.