Soundings are in feet and show depths below mean water.
Inset cross section drawings of Commonwealth Pier, Pier 6 South Boston Flats, and sea wall, Nothern Avenue, South Boston. Shows wharves, piers, and location of railroad, businesses, street names, and points of interest. Scale 1: 436.
1 map : col. ; 45 x 90 cm. on sheet 47 x 93 cm.