Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. Paper No. 1150 by Raymond, Charles W.

Subjects: “…Railroad tunnels -- Design and construction…”
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Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 The Bergen Hill Tunnels. Paper No. 1154 by Lavis, F.

Subjects: “…Railroad tunnels -- Design and construction…”
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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 East River Division. Paper No. 1152 by Noble, Alfred, 1844-1914

Subjects: “…Railroad tunnels -- Design and construction…”
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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. 115... by Jacobs, Charles M., 1850-1919 (Charles Mattathias)

Subjects: “…Railroad tunnels -- Design and construction…”
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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 Cross-Town Tunnels. Paper No. 1158 by Mason, Francis

Subjects: “…Railroad tunnels -- Design and construction…”
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Engineering the Channel Tunnel

Subjects: “…Railroad tunnels English channel…”

A Crash in the dark

Subjects: “…Railroad tunnels Wales Severn Tunnel.…”