The daily Minnesota pioneer. [volume] (St. Paul, Minn.) 1854-1855, 1855-05-11
BRIDGES OVER SNAKE AND KETTLE
RIVERS.


SEALED PROPOSALS will be received by the un
- dersgned, through the Post Office or otherwise,
nshng the materials for, and the construction OF,
BRIDGE OVER SNAKE RIVER;
and of
A BRIDGE OVER KETTLE RIVER
On tic Point Douglas and 81. Louis Rtrr Road.
BRIDGE OYER SNAKE RIVER.
This bridge will be of single span OF from
100 to $50 feet, may be required, have
TWO trusses, each 20 feet high roadway 6 feet wide,
the whole be built principally of inch plank, arran
ged chords posts and braces and ia be
by the addition of arch Braces all of which to be
fastened together by inch treenas or pins, and
inch bolts
The abutments, which will be Of such height as may
be required say feet will be made Of large square
timber, properly joined and pinned together
The amount OF lumber required in the superstructure
will be S. 900 feet, board measure, more or less The
amount of timber required in the abutmens will be 800
running feet less. The number of pins requir
the number Of screw bolts 200, average length Il l-2
inches total weight inclusive Of NUTS G37 lbs, number
of iron washers 400, total weight 800 lbs all more
BRIDGE OYER KETTLE RIVER.
This bridge will be composed OF two portions, the first
10 be of single span of SO feet have two irusses 16
feet high, roadway l6 feet wde the whole TO be built
Of middng sized mbers, which may all be either saw
ed or hewed, as may be convenient arranged in
Chords posts and braces and be joined together by
means of mortices pins and wedges. The second por
be simple werk of of Is feet EACH
a roadway Is feet in width, and to include the trestle
pier for support Of north end of main bridge
The of lumber required in the truss portion
exclusive OF the holsters at the extrenes, Will Oe Lo
900 feet, board measure more or less number OF la
inch pins 22O, number Of "a inch bolts A. weighing,
with nuts 1872 lbs number of cast iron washers %,
weight IS pounds all mere or less.
The amount Of lumber required in the trestie porton
inclusive OF the holsters of the truss portion, and the
restle pier main bridge, will be e6S feet board
measure, more or less, number of 4 inch pins 49, more
Less
1t being impossible to give in few words sufficient
" clear description Of the which these bridges
are to be built persons DESTROYS OF bidding will call and
see the drawings and specifications of the same at the
office of the undersigned
The materials for the tresses OF each bridge must be
white pine, of good quality, free from sap, shakes
dead knots, imperfectOns calculated to diminish
their strength durability. The pins, blocks, and
wedges he white burr oak, OF the best quality,
sand wen seasoned The abuments and trestles may be
of pine, white or burr oak
The whole construction to be under the direction
If the engineer agent in charge the part OF the
United States, and be subject such alterstOns and
notifications by him as the case in his judgment may
require.
For the sake of economy, and at the time for the
beneft of the contractor the two bridges will be let in
one contract and will be bid for separately, follows
: Snake Rirr Bridge.
TIE superstructure OF this bridge by the thousand
ces n lumber board measure, built in the bridge.
q The abutments by ths running foot OF timber built
The bolts used in the bridge, inclusive Of the nuts,
BY the pound