Sudbury River Conduit, B.W.W., div. 4, sec. 15, Oct. 18, 1876. North side of arch "G" with face brickwork overhead.

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Oct. 18, 1876. View from Needham bank of Charles River showing the north side of bridge.

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Oct. 18, 1876. View from Needham bank of Charles River showing the north side of bridge.

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Oct. 18, 1876. View of large centring from east bank of river showing south side (2nd view).

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Sept. 13, 1876. View showing interior structure of Charles River Bridge over arches "F" & "G".

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Sept. 13, 1876. View showing interior structure of Charles River Bridge over arches "F" & "G".

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Sept. 13, 1876. Vie of centring of arch "A" (when almost completed) from east bank of river and looking down stream.

Sudbury River Conduit, B.W.W. Div.4, Sec 15, Sept. 13 1876, view of cutting of large arch taken from east bank of Charles River.

Sudbury River Conduit, B.W.W., div. 4, sec. 15, Sept. 13, 1876. View of centring of arch "A" taken from Ellis St. and looking north.

B.W.W. Dam Division. Dam III, south centre wall and 8" permanent sheeting looking north, June 14, 1877.

B.W.W. dam division, Dam III, temporary sheeting for north center wall, looking north, July 14, 1877.

Sudbury River Conduit, B.W.W. div. 4, sec 15, Aug. 17 1876, lower part of centering of great arch.

B.W.W. div. 1, sec A, Winter Street bridges and conduit below Dam I, and excavation for river wall, July 14, 1877.

Sudbury River Conduit, B.W.W. div.4, sec 15, Aug. 17 1876, view of Charles River bridges taken from Newton side and looking west.

Sudbury River Conduit, B.W.W. div.4, sec 15, Aug. 17 1876, view of Charles River bridges taken from Needham side, looking east.

B.W.W. dam division, Dam II, temporary sheeting fro outer wall, north side of gate house, July 14th, 1877.