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1870. alec. 23

Anfo the authors.

Entered according to Act of Congress, in the year 1870, by

D. VAN NOSTRAND,

in the Office of the Librarian of Congress, at Washington.

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II.-WATER RECORD-CROSS SECTION OF RIVER-PROFILE OF CROSSING--PONTOON PRO

TECTION.

III. _WATER DEADENER -CAISSON No. 2-FOUNDATION WORKS, PIER No. 3.

IV.-FOUNDATION WORKS, PIER No. 4.

V.-FOUNDATION WORKS, PIER No. 4.

VI.--CAISSON No. 5-SHEET PILING AT PIER No. 6-DETAILS OF DREDGES--PILE SHOE

BETON BOX.

VII.-MASONRY-DRAW PROTECTION-FALSE WORKS BETWEEN PIERS 3 AND 4.

VIII.-FLOATING DERRICKS.

IX.--GENERAL ELEVATION—176 FEET SPAN.

X.-248 FEET SPAN.

XI.-PLANS OF DRAW.

XII.-STRAIN DIAGRAMS.

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