Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 - The New York Tunnel Extension of the Pennsylvania Railroad. - The East River Tunnels. Paper No. 1159 by S. H. Woodard;Francis Mason;James H. Brace
page 47 of 93 (50%)
page 47 of 93 (50%)
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Mixed | 54 | 65 | 1.20 | | | | | | | Earth | 94 | 723 | 7.69 | | | | | | | | | | | | Mixed |190 | 515 | 2.71 | | | | | | | Rock | 21 | 38 | 1.81 | | | | | | | Rock | 46 | 116 | 2.52 | | | | | | | Rock | 59 | 137 | 2.32 | | | | | | | Mixed | 25 | 48 | 1.92 | | --------------+------+--------+--------+--------------------------------------+ LINE B, MANHATTAN. --------------+-----------------+-------------------+-------------------------+ | | Station: | Date: | | |---------+---------+------------+------------+ | | | | | | Material. | Method. | From | To | From | To | --------------+-----------------+---------+---------+------------+------------+ {|Top heading |108+35 |107+87 |July 6, '05|July 27, '05| {|Top lift of bench|108+35 |107+87 |Aug. 3, '05|Aug. 14, '05| Rock {|Bottom lift of | | | | | {| bench |108+35 |108+15 |Aug. 26, '05|Aug. 30, '05| {|Bottom lift of | | | | | |
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