s
the necessary distance to bring it in line with the new position of
the west retaining wall. The remainder of the structure was then moved
bodily, also by jacks, 6-1/4 feet to the east. The new roof of the
usual type was then added over 12-1/2 feet of additional opening. (See
photographs on pages 46 and 47.)

[Illustration: CONCRETE SEWER BACK OF SIDE WALL, BROADWAY AND 56TH
STREET]

[Illustration: LARGE GAS AND WATER PIPES, RELAID BEHIND EACH SIDE WALL
ON ELM STREET]

Provision had to be made, not only for buildings along the route that
towered far above the street surface, but also for some which
burrowed far below the subway. Photograph on page 47 shows an
interesting example at 42d Street and Broadway, where the pressroom of
the new building of the "New York Times" is beneath the subway, the
first floor is above it, and the first basement is alongside of it.
Incidentally it should be noted that the steel structure of the
building and the subway are independent, the columns of the building
passing through the subway station.

[Illustration: DIFFICULT PIPE WORK--BROADWAY AND 70TH STREET]

At 42d Street and Park Avenue the road passes under the Hotel Belmont,
which necessitated the use of extra heavy steel girders and
foundations for the support of the hotel and reinforced subway
station. (See photograph on page 48.)

Along the east side of Park Row the ascending line of the "loop" was
built through the pressroom of the "New York Times" (the older
downtown building), and as the excavation was considerably below the
bottom of the foundation of the building, great care was necessary to
avoid any settlement. Instead of wood sheathing, steel channels were
driven and thoroughly braced, and construction proceeded without
disturbance of the building, which is very tall.

At 125th Street and Lenox Avenue one of the most complicated network
of subsurface structures was encountered. Street surface electric
lines with their conduits intersect. On the south side of 125th Street
were a 48-inch water main and a 6-inch water main, a 12-inch and two
10-inch gas pipes and a bank of electric light and power ducts. On the
north side were a 20-inch water main, one 6-inch, one 10-inch, and one
12-inch gas pipe and two banks of electric ducts. The headroom between
the subway roof and the surface of the street was 4.75 feet. It was
necessary to relocate the yokes of the street railway tracks on Lenox
Avenue so as to bring them di