Decorah public opinion. (Decorah, Winneshiek County [Iowa]) 1895-1928, 1907-07-31

pockets of cement shall appear, after
which small quantity of water from a
sprinkler shall be added, sufficient only
to moisten the mass after being well
stirred and turned with the hoe The
concrete will then be spread to the re-
quired depth and well rammed. The
operation of wetting, stirring spreading
and tamping shall be as eXpedious as
possible. and no concrete shall be used
afte. the mortar has begun to set. In
no case shall more than twenty-five min
utes elapse after the mass is moistened
before the concrete is placed in the side
walk. On the concrete thus laid there
shall be spread without delay a TOP
course one half inch thick, composed OF
one part clean, sharp river sand, and one
part of best quality of Portland cement
(of standard brands.) The sand for the
top course shall be screened from the
sand and gravel furnished for the foun-
dation course of concrete through No
6 riddle. These parts shall be thorough.
" mixed dry. then wetted to the proper
consistency. and the mortar thus pro-
duced. when thoroughly mixed, shall be
laid on and thoroughly worked into the
concrete with trowel, so that the top
layer of cement can not separate from
the foundation. The top surface shall
be finished with the float, and be cut
; two inches deep into rectangular blocks
of not more than = square feet surface
The walk. when finished. shall have a
fall from the lot line to the outer edge
of one third of an inch per foot.
The top coat must be laid upon the
concrete as soon as possible. and before
the concrete has set or dried and in no
event shall more than one hundred and
twenty square feet of concrete be put in
before the surface coat is laid on. When
completed the walk shall be carefully
barricaded and all travel across the sur
face of the walk prevented for not less
than five days, and in hot, dry weather
the surface of the walk shall be covered
with at least one inch of sand and thor
oughly sprinkled at least twice upon the
day after Ike walk is laid, or as often as
shall be directed by the Inspector.
That portion of the sidewalk abutting
upon private driveways shall be con-
structed as follows: The foundation
shall be the same as described in these
! specifications. and upon this surface shall
be placed layer of concrete uniformly
| six inches in thickness after being COM
pacted. and composed as follows: Two
parts of best Portland cement of any of
the standard branus of American Port
land cement, to seven parts of river
gravel, mixed with clean, sharp, coarse
river sand, in their proper proportions,
thoroughly mixed dry, and then suffi-
Gent water added to form stiff mortar
of the combined cement, sand and gravel.
This concrete shall be spread and ram
med to an even surface. The mortar as
soon as spread will be travelled to a
smooth surface at the sidewalk grade
/ The blocking for the driveway shall be
done by cutting and finishing in the
usual manner, except the grooves will
| be made three lights of an inch at the
bottom and three fourths OF an inch at
the top, or sidewalk surface, and will
generally be spaced four inches from
each other across the driveway and
along the sidewalk. The surface and
form of the driveway, when completed
will be level with the sidewalk adjacent
and a two-by eight inch plank on edge
shall be placed on each side of the wall;
occupied by the driveway and thoroughly
staked. to the satisfaction of the Side
walk. Committee and their authorized
representatives
The upper outside edges of the walk
shall be slightly beveled and the'dsood
strips used to form the edges and to
gauge the width shall be allowed to
remain until the concrete is well set.
On the completion of the, walk, or two
hundred feet thereof, it shall. be COW
cred to protect it from the heat OF the
sun until well set, and the edges must
be left well protected and supported with
earth At the proper time, and when
directed so to do. the contractor shall
remove the covering.
GENERAL SPECIFICATIONS.
All walks will be measured and paid
for at a fixed price per square foot for
each kind of walk. All walks must be
built in finished workmanlike manner
and to the satisfaction and acceptance
of the Sidewalk Committee and their
authorized representative, and any de-
fects in the walk caused by defective
material or bad workmanship that may
appear within two years from the date
of their completion, shall be made good
by the contractor.
| All lumber from the old sidewalks not
removed by the owner and all dirt, rub
bish and material of any kind shall be
removed entirely from the streets by the
contractor as soon as the work is fin
shed, and if not removed within twen-
ty-four hours after the completion of
the work, the Sidewalk Committee and
their authorized representative shall
have the same removed and double the
expense Of such removal shall be charged
to the contractor, and no certificates
shall be delivered to him until such
charges are paid.
The contractor shall give forty eight
hours notice, in writing, when he shall
require the services of the engineer for
laying out any portion of the work. He
shall dig all stake holes necessary to
give the lines and levels. He shall fur
nish and keep on the work at all times a
spirit level and straight edge, of such
form and size as directed by the engi-
neer. He shall carefully preserve all
stakes or points when set, and in case
any of them are replaced by the engi-
neer he may be charged double the ex-
pense thereof, and no certificates shall
be delivered to him until the charges
are paid.
All sidewalks, when laid out, must be
taken in charge and built Immediately
by the contractor under his contract, and
no more old walk shall be taken up than
there is material on the ground to re-
nlace No material of any Kind shall