Audubon County journal. (Exira, Iowa) 1884-1993, 1920-02-19

4, IOWnSnlp rs, Range 30, Town OF
Extra, Iowa east to the west line of
Carthage street, shall be 81 feet The
width of paving at the intersection of
Carthage and Washington street shall
be the full width of Washington
street. The width of paving between
the east line of said Carthage street
and the west line of Jefferson street
shall be the full width between the
cutters thereon as now constructed,
being approximately So feet. The
width of paving at intersection of
Washington and Jefferson streets
shall be the full width of Washington
street. The width of paving between
the east line of Jefferson street and
the west line of Park street shall be
the full width between the cutters
thereon as now constructed, being
approximately So feet. the width of
paving at intersection of Washington
and Park street shall be the full
width OF Washington street, and the
combined paving and gutter between
face of curb lines from the east line
of Park street to the east limits OF
said town, shall be "a feet.
Said pavement shall be constructed
of one or more of the following kinds,
described herein, and the town council
shall select and determine the kind
or kinds of paving and materials that
in it's judgment is best suited for said
improvements, and parts thereof. the
selection to be made and the kind or
kinds determined after bids are re-
ceiyed thereon, it being understood
that different kinds may be used for
different parts of said street.
Concrete Pavement.
Type "A Shall consist of single
course of concrete, inches thick in
center sloping to Z inches at sides,
mixed in the proportion of / sack of
Portland cement to cubic feet of
fine aggregate, and cubic feet of
coarse aggregate.
Type "B. Two course unreinforced
Concrete, shall consist of base inch
| es thick in center sloping. to S inches
at sides, mixed in the proportion of
| sack Portland cement to 211a cubic
| feet of fine aggregate and 4 cubic
| feet OF coarse aggregate. Wearing
| Course 2 inches thick, mixed in pro-
portion of sack of Portland cement
| to / cubic foot of fine aggregate and
IL " cubic feet of No. / aggregate for
wearing course.
! Type &C" One course reinforced
| concrete, shall be 6 inches in thick
ness, mixed in the proportions of i
sack Portland cement, to- cubic feet
of fine aggregate and cubic. feet of
coarse aggregate, reinforced by steel
reinforcement weighing not less than
! 30 lbs tn ION Sul1ara foot
Type ID Two course reinforced
concrete. Base course shall be 4
Inches in thickness, mixed in proper
tons of sack of Portland cement
to 21s cubic feet of fine aggregate and
cubic feet OF coarse aggregate.
Wearing course shall be 2 inches in
thickness, mixed in proportions of 1
sack of Portland cement to 1 cubic
foot of fine aggregate and ~ feet of
No. i aggregate for wearing course,
same to be reinforced by steel rein
forcement weighing not less than 80
lbs. to 100 square feet placed between
the base and wearing course.
Asphaltic Concrete Pavement.
The concrete for base of pavement
shall be inches thick of the follow
ing composition, One part Portland
cement, two and one-half parts sand
and five parts of broken stone OF
gravel by measure, on the base pre-
pared as aforesaid shall be laid the
asphlatic concrete, the asphaltic ce-
ment to be used shall be the best
quality, composed of asphalt refined to
melting point of from lao to 22O
degrees Fahrenheit, and shall show
an analysis of at least 95as Of bitumen
soluble in bisulphide of, carbon.
Vitrified Brick Pavement
i The base course shall be the same
as that herein prescribed for Asphal.
i tic concrete pavement, upon which
shall be placed sand cushion ~
inches in thickness. Wearing course
shall consist of the best qaulity vitri
fled brick or brick block, true in form
and specially made for street paving
purposes, nor less in size than 21bX4,
i 8 inches.
Bitulithic Pavement
The base course shall be the same
as that provided for Asphaltic con
crete pavement. Upon such founda
ton shall be laid the Bitulithic wear
! ing surface and seal coat so as to hay,
q IiiiShhSSo vi ~ lllCllSS dlleT LlOI
ough compression, the wearing Sun
face shall be composed of hard crush
ed stone, sand and bitulithic cement
!. in the proportions and in the name
3 as provided by specifications on file
Bitustone Pavement.
Bottom course of pavement shall b
!. laid inches thick and shall be con
posed of Portland cement concret
mixed in the proportions of l part &c
. ment to 21A parts sand or crushe
screenings and parts crushed ston
or gravel. Bonding course to be II
Inches thick composed of hard grant
q ebert or trap rock mixed with Por
land cement in the proportion of
parts stone to part cement. SUI
. face shall be thin layer of crushe
Z screenings placed on filler while no
The curb shall be built of the forr
and dimensions shown on detaile
: plans on file in the office of the tow
clerk, and shall be OF concrete nike
in the following proportion, one pan
cement, two parts sand and thre