pa1778data.pdf

U.S. STEEL DUQUESNE WORKS
HAER No. PA-115
(Page 78)
Historic Name: U.S.S. Corporation, Duquesne Works: Blast Furnace
Plant, Combustion Air Production and Delivery
System.
Present Name: U.S.X. Corporation, National-Duquesne Works: Blast
Furnace Plant; Combustion Air Production and
Delivery System.
Location: Upper Works
Construction: 1896, 1931
Documentation: Photographs of blast furnace plant located in HAER
No. PA-115-A.
I. Cold Blast Air Facilities:
DESCRIPTION
A. Blowing Engine House Number One: Built by the Keystone
Bridge Company and laid out on a east-west axis, the blowing
engine house is 65'-0" wide x 174'-2" long x 65'-2 3/8" high to
the underside of the truss. Constructed from a concrete
foundation, the building's brick exterior encases its steel
frame. An upper and lower row of bricked up 4"-5" wide x 15'-0"
high segmented archway windows rim the walls of the building.
The upper most part of the north and south walls of the building
are fitted with lO'-O" high louvers set between the encased steel
work. A craneway spans the width and runs the entire length of
the building. It carries a crane with a 2 5-ton capacity. The
clearance between the floor of the building and the top of the
craneway's rail is 51'-6". The building's gable roof is
supported by Fink trusswork that supports ventilation pipes.
Five ventilation stacks, laid out linearly on a east-west axis,
protrude up through the peak of the roof.
Construction Date: 1895.
Installation of Louvers: 1931.
B. Blowing Engine House Number Two: The 65'-0" wide x 200'-0"
long x 65 , -2 3/8" high blowing engine house, built by the
Keystone Bridge Company, is laid out on an east-west axis. The
northern, southern, and western walls of the building are made up
of brick construction. The eastern wall of the building has a
corrugated metal exterior as a result of a 25'-0" wide x 65'-0"
long extension to its eastern side. The concrete foundation of
the building supports a steel framework which is encased by the
brick walls. Ten foot high louvers are fitted between the
encased steel work at the top of the north and south walls. Also
fit between the encased steel work of the building's brick walls
is an upper and lower row of bricked up 4'-5" x 15*-0" high
segmented archway windows. Spanning the width and running the
entire length of the building is a craneway carrying a 25 ton