The Port Gibson reveille., 1920-11-18

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Branches Of trees are not to hang
lower than 12 feet above the roadway.
CULYERT PIPE.
Culvert pipe shall be laid as and
where directed By the enpineers.
Calvert pipe viii be selected and
purchased BY She commission and
furnished to the contractor FO. Bears,
at the nearest practical railroad point,
where it will be unIoaded and hauled
by thecontractor, all which is in
cluded IN the price Of laying.
All pipe shall be laid true to grade,
with the bell ends, if any, up stream.
A bed Of uniform Grade must be pre-
pared to receive the pipe by excava-
ting a trench for il and recesses must
be cut to receive the bell ends. Each
piece of pipe shall have firm bear
ing throughout its entire length and
shall be carefully fitted into the ad-
jacent pipe. No pipe is TO be laid
until inspected after hauling, and all
pipe condemned, shall be promptly
removed from the work.
Laying pipe shall be paid forb y the
lineal foot in place, and the -rice per
foot shall include cost Of unloading,
hauling, trenching, back filling, tamp-
ing; inlet and outlet bitches and all
incidental work except masonry ends.
RELAXING OLD PIPE
Existing pipe, which, in the judg-
ment Of the engineers, is in good con-
dition and can be economically relaid,
is TO be carefully removed and relaid,
where the engineer directs in the same
manner as herein sDeeifed me
culverts and sewers.
Existing pipe unfit to so relaid
may be destroyed without removal.
The contractor win be responsible for
pipe carelessly broken in removal.
HEAD WALLS
The ends of the pipe culverts shall
be protected with concrete headwalls
plans which will be furnished by the
engineers.
BRIDGES
Concrete bridges shall be built at
the contractors bid price per cubic
yard, for concrete, if required by the
Commission or Board, at such places
as the engineers direct, and shall con-
form to plans furnished therefor.
If the commission orders any con-
crete bridges built thev will be paid
for out of the road districts funds;
II the Board orders anv bridges built,
they viii be paid for out Of the county
funds. The price bid by the contract
or shall apply in either case.
The District does not undertake to
guarantee that the present bridges
or culverts on the roads I ODE worked,
are heavy enough to carry the con-
tractors equipment, or for hauling
construction materials, nor does the
district agree to have the new bridges
or culverts constructed in time for
use by the contractor.
Any use of bridges or culverts eth
er the present or new ones by the
contractor shall be at his own risk,
and contractor shall make good any
damage occurring on account of such
use by him.
CULvERT PIPES AND ABUT-
MENTS
Portland Cement Culverts, concrete
piers and abutments shall be built
where ever required and shall conform
strictly to the plans furnished and
specifications covering this class of
FORK as herein given.
ROUTE OF HAUL SURFAC-
ING MATERIAL
Gravel or other material for the
finished surface of the roadway will
be purchased locally, or procured 9TH
erwise by the commission.
The haul for this material shall be
by the shortest practical route from
pits, beds or cars to the road where
Used.
When gravel pits are located on by
roads or in the woods and where
BRIDGES oyerwashes,
low places etc, have to be
and temporary roads amde
to haul over the contractor shall con-
.truct same at his own cost and ex-
pense, as same is considered paid for
N the unit price bid for gravel.
PORTLAND CEMENT, CONCRETE
MASONRY
.A) Composition:
The concrete shall be composed of |
screened gravel which win not pass
through a two inch rin0 and sand |
which shall be clean, sharp and free !
rom dirt, clay or other perishable |
natter, and Portland Cement of an
approved brand, and fresh clean water
I'D Proportionsi
Concrete shall be mixed in the fol-
owing proportions, measured by vol
lme: for bridge, beams and culyerts I
ops, viz: One part cement two parts
and, and four parts gravel.
For abutmen4s, piers, headwagls,
idewalls and aprons, viz: One part
ement, two and one half parts sand
nd five parts gravel.
@ Cement:
All cement furnished shall be of the
est grade of a Standard Portland
;ement, and shall be subject to test
efore usingi cement shall be stored
2 a DR., and suitable place until used
d Mixings
The cement and sand Of the pro-
ortions specified shall be first thor
ughly mixed dry on clean tight
latform or In boxes until 1t becomes
uniform color; The needed quantity
I clear water shall be added by
and these turned until
thoroughly mixed. The gravel, pre-
loudly washed or drenched, shall
len be snread over the mortar, and
ne mass thoroughly mixed, turning
over and over, until each stone is
'vered with mortar.
Mechanical mixing Of mortar and
1ncrete will be permitted, and is de-
rable when done with the proper
aehlnery, which type of machinery
ill be AnDroVpd hv the arr;pao,.c .