Concerning the construction of the two Twin-tube shield-driven tunnels, the compressed air work, shaft construction, shield construction, etc. (3800 w.) (No. 77929)
The tunnel work of the Pennsylvania Railroad under the East River
Eng News
1906
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
The east river tunnels of the Pennsylvania railroad
Engineering Index Backfile | 1908
The Pennsylvania railroad tunnel under the North River, at New York City
Engineering Index Backfile | 1903
The Pennsylvania railroad tunnel bridge
Engineering Index Backfile | 1902
The Pennsylvania railroad tunnel under New York City
Engineering Index Backfile | 1903
The meeting of the four east river tunnels of the Pennsylvania railroad
Engineering Index Backfile | 1908