Annual Report of the Board of Harbor Commissioners, 1872-1876
HOUSE No. 25 ELEVENTH ANNUAL REPORT OF THE BOARD OF HARBOR COMMISSIONERS. January, 1877. BOSTON: ALBERT J. WRIGHT, STATE PRINTER, 79 Milk Street (corner or Federal). 1877. — REPORT. Harbor Commissioners' Office, No. 8 Pemberton Square, ) Boston, January, 1877. ' To the Honorable Senate and House of Representatives of the Common- wealth of Massachusetts. The Board of Harbor Commissioners respectfully submit their Eleventh Annual Report : South Boston Flats. The reclamation of South Boston Flats, by the use of material for filling taken from the banks and bed of the main channel, has made fair progress during the past year. The twenty-five acre piece which the Commonwealth has under- taken to reclaim, has been walled in, substantially, as far as the first dock inclusive, and requires only about 64,000 cubic yards more (which the dredging of the dock will supply) to raise it. to grade thirteen, above which the filling is to be of gravel. The engineer seems to have foreseen so perfectly the degree to which the rubble underlying the heavy wall would yield to the pressure from above, that now, when time enough has elapsed, in his opinion, for the entire settlement to have taken place, the coping of the wall is found to be upon its predestined grade,—sixteen feet above mean low water. The sinkage has been about six inches, and so nearly uniform, that the wall may be said to have moved as a single mass. Excepting the removal of a considerable body of shoal ground off Long Wharf, the dredging has been confined to a belt in front of the Commonwealth's property, and a connect- ing channel to deep water beyond.
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