Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 / The New York Tunnel Extension of the Pennsylvania Railroad. / The North River Tunnels. Paper No. 1155

by Bertram Henry Majendie Hewett; W. L. Brown

Transcribers' Notes:
Some tables don't sum to the numbers indicated; no corrections have been made. All numbers are from the original.
Minor inconsistencies in hyphenation have been retained.

AMERICAN SOCIETY OF CIVIL ENGINEERS

INSTITUTED 1852

---

TRANSACTIONS

---

Paper No. 1155

---

THE NEW YORK TUNNEL EXTENSION OF THE PENNSYLVANIA RAILROAD.
THE NORTH RIVER TUNNELS. [A]

By B. H. M. Hewett and W. L. Brown, Members, Am. Soc. C. E.