Environmental groups criticize potential development of Widett Circle because of flooding issues Letter from the Charles River Watershed Association follows Globe report that industrial area could be home to a new Amazon warehouse By Jon Chesto Globe Staff,Updated March 16, 2021, 7:17 p.m. Email to a Friend This 2014 file photo shows Widett Circle (in the center) and the city's public works yard.David L. Ryan/Globe Staff Environmental groups are pressing Boston officials to address flooding problems in an industrial area between South Boston and the Southeast Expressway that has been eyed as a potential home for an Amazon warehouse. A coalition of more than 15 environmental advocacy organizations, led by the Charles River Watershed Association, sent a letter to Mayor Martin J. Walsh and members of the City Council on Tuesday, expressing concerns about the potential for tidal flooding in the low-lying Widett Circle area and the adjacent Boston public works yard on Frontage Road.