Rock Island Argus. (Rock Island, Ill.) 1893-1920, 1895-08-13
THE BRIDGE BIDS.
bundled or to Washington for Approval
Before Disclosing the Contents.

Before Disclosing the Contents.
Col. A. K. Burlington, after having
the abstracts made of the bids re-
ceived for the construction of the
Rock Island bridge. yesterday for
warded them at once to Washington,
and refuses to disclose the same
until the war department has passed
upon them.
Description OF the New Bridge.
The uperstructure will consist of:
"a" one draw span 365 feet and
Ia inches long between centers of
end pins; 3D." two fixed spans 25S
feet long between centers of end
pins; &C." three fixed spans PIG
feet, 81 inches long between CEN
tiers of end pins; 3D." one fiexd span
113 feet and inches long between
centers of end pins, and e." one
fixed span SO feet and 9 inches long
between the centeIs of end pins.
The weight being as follows: The
| "a" or draw span will weigh 1880
900 pounds; the two ..B" spans will
weigh Z, 1920. 900 together, or ], 4lO, 900
each; the three &C" spans will weigh
3.120. OO0, or 100000 each, the I'D"
span $4,000 pounds and the ..E"
span 100000. making a total of
s,77O,OO0 pounds.
The specifications also provide
that the different spans shall be COM
pleted ready for shipment on the fol-
lowing dates: "A" or draw span,
Dec /. 1895; first span of ..B" Jan.
!, 1896; first and second spans of ..Cr
July /. 1896: third span of &c" Aug.
l, 1896. And they shall be erected
by the following dates: "a" or
draw span, Jan. I, 1896; first span
of .'B' Feb. 1, 1896; first and second
spans of &c" Aug. 1, 1896: third
span of &c" Sept. l, 1896: second
span of .'B" Oct. !, 1896, and I'D"
and '.E" by Nov. l. 1896. Thus it
will be seen that it is now the inten-
tion of having the entire structure
com pleted by Nov. l of next year.
Each of the proposals were accom-
panied with u bond for $1,000 in ac-
cordance with the act of congress
passed in 1888.
The rebuilding of the superstruc-
ture will necessitate considerable
change in the stone abutments or
piers. The new superstructure will
be considerably wider than the old
| one in order to make room for the
double railway tracks on the upper
deck.
The Old Bridge.
The bridge to be abandoned and re-
iah
been expended, was constructed %
years ago. Its total length is 1850
feet and inches. 1t has five spans
and one draw. Measuring from the
Davenport end these spans have the
following measure: First span, 27O
feet; second, third and fourth spans.
220 feet each; the fifth span. 260 feet
and 6 inches; and the draw span, 36S
feet. The Davenport shore span,
covering the roadway, has length
of 1917 feet; and the roadway span on
the island end, 100 feet and 8 inches;
making the total length of the
structure ,S4S feet and inches.
In the new bridge the piers are to be
enlarged. The old piers have a top
measurement of Z feet by 43 feet 8
inches; a base size of from 10 feet to
- feet 6 inches by 65 feet to 40 feet;
and a height of from % feet to IS feet
and contain $500 cubic yards of
masonry. The wagon way is II
feet 6 inches high, and the railway
II feet high; and the total height Of
truss is 81 feet inches. The width
of the wagon way is 16 feet 4 inches.
Above natural high water the bridge
is 16 feet inches.