The Republican journal., 1900-05-24
Plan No l.
Pile Treste, Plank Roadway Length of
Bridge about 1910 feet

The spans are to be 10 feet between CEN
tres OF caps. The Draw is to be % feet
opening. and the same gear, posts and plat
forms now in use with the new timber put
III III the year 1899, may be replaced and
Will be accepted as part of the bridge The
material OF the present bridge must be ell
t tlrelN removed. so far as it may interfere
with the construction of the new structure,
the old piles being cut OFF at the surface of
OF the river bottom or at low water mark.
/ llleS are to be OF spruce, sound and straight.
All piles are to be not less that T. inches i'll
| diameter at the larger end, nor less than I
inches at the smaller end They are to be
carefully placed in position as shown by
the plans and driven vertically until the
. blow OF 1000 pounds hammer falling 20
feet shall cause movement of less than i
, inches
The cribwork upon the West side of the
Draw must be removed to low water mark,
or such level as may be deemed necessary
ana II found sound. may be rebuilt from
that level to the top. If not thought adj
Vlsable by the representative of the City to
utilize the Crib. piles Will be driven next to
IT and ii strong bent made to support the
gear. On the opposite side of the Draw
the first two bents Shall extend - feet
either way from the bridge, making bents
- feet long to give additional lateral
strength and also guide vessels passing
through the draw These two extensions
planked, with fast pile at each corner
next the opening, and one intermediate pile
| at each end as shown i'll the plan.
The Caps will be pieces of Hemlock
timber % feet long, T. inches deep by 5
inches thick, fastened together with iron
are to be not less than inches long and 3
inches thick. There will be stringers, s
inches by II inches and 20 feet long, spaced
as shown upon plan, Each stringer will
cover two spans and consequently there will
| be either three or four joints to each cap al
ternately The Stringers will be of sound
Spruce OF straight grain, secured to the caps
by an IRON dowel Is inches long at each
end. The outside stringers to be gained
down INTO the caps inch and the stringers
next to them inch, thus making the center
| OF the roadway inch higher than the sides.
The main planking will be 3-nch Hemlock
laid crosswise of the bridge, well secured
| with SOD cut nails. In the center of each
span, d marrow plank will project 3 feet on
either side III order to support braces for
railing. There Will be a second covering of
2-inch Hemlock plank laid diagonally and
forming roadway for teams Is feet wide
| There will be a railing feet high, made of
| Spruce, the details of which are shown in
the drawings. A wheel fender inches by
e. inches will be securely bolted to the
planklng by bolt every 6 feet. 1t may be
| either Hemlock or Spruce.
Two sway braces ; inches by 10 inches by
26feet will be securely fastened to each bent
| with ship spikes not less than inches long
| The bolts used in the caps are to be not
less than iron of standard make with
wrought iron washers. The bolts used in
the, wheel Tenders and ratings may be of Z
inch iron, with washers.
| All material entering into the construction
| OF the bridge shall be subject to the opprov-
al OF the City's agent or representative
The surface of the bridge to be l foot
higher than the present bridge, and the ap-
proaches at either end are to be raised with
| earth to the height of the bridge, and pro.
tected on the sides with stone where neces-