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Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 - The New York Tunnel Extension of the Pennsylvania Railroad, - The North River Division. Paper No. 1151 by Charles M. Jacobs
page 21 of 34 (61%)
there to the Weehawken Shaft, New Jersey.

3.--The Bergen Hill Tunnels, under the charge of F. Lavis, M. Am. Soc.
C. E., Resident Engineer, including the rock tunnels from the Weehawken
Shaft to the Hackensack Portal on the west side of the Palisades, all in
New Jersey.

Paul A. Seurot, M. Am. Soc. C. E., acted as Office Engineer in charge of
the drawing office, and Mr. J. Soderberg as Mechanical Engineer in
charge of the mechanical drafting. Prior to the construction of the
above works Mr. C. J. Crowley acted as Resident Engineer on the
construction of the Weehawken Shaft, and J. F. Rodenbough, Assoc. M. Am.
Soc. C. E., on that of the Manhattan Shaft.

Table 1 shows the quantities of certain materials and other statistics
regarding this Division.


TABLE 1.

------------------------------------------+---------+-----------+----------
| Bergen | River | Term.
| Hill. | Tunnels. | Sta.-W.
+---------+-----------+----------
| | |
Excavation disposed of (or displaced), | | |
in cubic yards | 263,000 | 238,995 | 517,000
Cast metal used in tunnel, including | | |
cast iron and cast steel, in tons | | 64,265 |
Steel bolts used, in tons | | 2,606 |
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