Waban Valley bridge, north side looking west, June 1877.
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Boston water works, Sudbury River Conduit, 1876, Division III, Section 10, Waban Valley bridge, south side of "arch A".
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Boston water works, Sudbury River Conduit, 1876, Section 10, Waban Valley bridge, view of centering "arch B".
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Reverse curve, Summerwell estate, sta. 3421.
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East portal, sec. 8, sta. 30978.
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West portal of tunnel, sec. 8.
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Rock cut, sta. 290, sec. 8.
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Bacon's waste weir, sec. 7, sta. 27140.
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Bacon's waste weir, sec. 7.
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Curve 16, sec. 7.
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Big cut, sta. 236.
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East portal, sec. 6.
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West portal, section 6, sta. 20184.
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Boston water works, Sudbury River Conduit, 1876, Division 1, Section 1, conduit under Proctor + Albany railroad tracks.
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April 1877, gate house.
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April 1877, gate house.
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Boston water works, Sudbury River Conduit, Nov. 6th, 1876, Division 1, Section 1, gatehouse showing inlet arch to conduit.
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Boston water works, Sudbury River Conduit, Nov. 6th, 1876, Division 1, Section 1, view of Farm Pond gate house foundations, looking towards northeast corner of coffer dam.
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Boston water works, Sudbury River Conduit, Nov. 6th, 1876, Division 1, Section 1, view of Farm Pond gate house foundations, looking towards northeast corner of coffer dam.
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Boston water works, Sudbury River Conduit, Nov. 6th, 1876, Division 1, Section 1, view of Farm Pond gate house foundations, showing west end of coffer dam.
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Boston water works, Sudbury River Conduit, Nov. 6th, 1876, Division 1, Section 1, view of Farm Pond gate house foundations, showing west end of coffer dam.
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Boston water works, Sudbury River Conduit, 1876, Dam no III, north end of Dam, showing foundations of gate house, looking north.
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Boston water works, Sudbury River Conduit, 1876, Dam no. III, north end of Dam, looking south towards Hauer's(?).
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Boston water works, Sudbury River Conduit, 1876, Dam II, view of foundations, looking west.
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Boston water works, Sudbury River Conduit, 1876, Dam I, view showing location of dam and bridges on Winter Street over Sudbury River.
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Boston water works, Sudbury River Conduit, Sept. 1876, Dam III, Rubble masonry foundations, southeast corner of gate house.
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Boston water works, Sudbury River Conduit, Aug. 1876, Dam no. 1, Pairing below overflow, south side of river.
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Boston water works, Sudbury River Conduit, 1876, Dam no. 1, view of foundations, looking towards Frasts(?).
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Current testing apparatus.
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Sudbury River Conduit, Nov. 6, 1876, Div. I Sec. I, current meter.
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