Deseret evening news. [volume] (Great Salt Lake City [Utah]) 1867-1920, 1907-07-13

gravel and clay from almost any gravel
bank In the city would be much nrm-
or road to begin with than any OF the
blue limestone macadam structures now
being laid down.
MENACE TO SOUTH TEMPLE.
These newly paved streets will soon
comprise three or four miles of con-
struction, including the cross streets,
Miles are already contracted for from
this questionable and apparently
worthless material. But if this MAJ
tntial continues TO dlsintegratc with
the same readiness that has marked
It's rapid destruction on all the atreets
formerly paved with it, then II VIII re-
qullc only moderate cloudburst or
heavy tluuds az shower on the north
east bench or city lots to sweep this
compressed shSlc and powder, which
strongly resembles ash-dust IN roar
ing torrent down upon the fine lawns
and pavements of the adjoining South
Temple street property. This result,
Which Is by no means fanciful or un-
likely to happen at any time, would
b. regarded as a calamity by people
OF all pnrts of the city. on account OF
the genuine admiration shown ny the
entire public for the beautiful gar
dcns walks terraces, slrubbery etc,
OF this collection OF homes in salt
Lake City.
NO MISTAKE ABOUT IT.
1t has been said that the conditions
OF the newly paved roads as presented
herein were ascertained by actual IN
srcction on the part of the writer, Al
the same time, conversations We're
held with road-malSers. engineers, city
street employees. freighters- teamsters
and business men. All the testimony
tc nded IN the same direction and much
OF II was very emphatic. No defender
OF the present materials and methous
used In the present system of city road
making was encountered though en-
quiries were made with freedom and
lnpartalty
The writer OF this article Ia not a
civil engineer He is naturally CON
ceIned as to whether pr not his own
observation and chat Of all classes of
workmeu and business men may not
be somewhat misleading. Is II not
possible that there are circumstances
or which no one knows. conditions
which none can see, that will serve
to mitigate the severity of the judgment
must be passed upon the apparent
entity shameful waste and loss that are
now evident in the city road -maNing
To satisfy himself, the writer demands
ed printed authority. and was re-
forred, among other recent books and
pamphlets. to Byrnc's Treatise on
Highway Construction This is an
nounced as a textbook and work OF
reference for all who may be engaged
In the location. construction. or main
tenance of roads, streets and pave
ments. Fourth revised and enlarged
edition: John Wiley & Sons. publish
eTs.
Careful perusal Of many sections OF
this standard work has convinced the
writer that the worst is not yet told OF
the recent paving OF our city streets
Nearly every article on r0ad-construc-
ton in this authority strongly corrob-
crates the adverse findings of those
who, like the writer, have inspected our
recent street work. To take only one
or two instances, turn say to page 25l
and read the following:
ESSENTIALS REQUISITE TO Sue
CESSFUL CONSTRUCTION.
"The essentials requisite to the suc-
cessfu construction of broken stone
pavenents may be summed up as fol-
lows;
"u) The entire removal from the
road bed OF all vegetable OF perishable
| matted.
"(2) The removal of the natural soil
| to such depth az mny be determined
| by it's character, and by the thickness
| of the intended covering.
"ts) Sub-surfare drainage wherever
required.
20 The thorough compacting of the
natural soil bed.
"(5) The employment of sand oil
| gravel for the foundation.
.ts) The employment of the best ma
| terials afforded by the locality.
"t7) The employment of unscreened
| stones.
"(s) The complete exclusion OF clay or
| loan from the broken stone.
| "l9) The employment of sand or gray
el for binding, in sufficient quantity
to ill the voids.
900 The thorough compacung oil
| the broken stone with a roller of COM
| petent weight and suitable form.
or these essentials" according to
! the observations Of the writer. Nos. j,
4. s. s. Z, S, Q, and 10, are being clearly
| disregarded in the present methods
! of our city road making For, as the
| same work goes on to say, the following
| are the
ERRONEOUS METHODS OF CON
STRUCTION.
"Brolen stone pavements can be
made very unsatisfactory and defective
| by:
stones which no amount of rolling
VIII consolidate.
"(3) BY the use of improper binding
| material, such as loan and clay
go BY an undue proportion of soft
among the hard stones. small
quantity (about one-fourth) of small
| stones judiciously mixed In with the
harder viii undoubtedly be an advan-
tage. :,
too large size.
(6) BY screening the broken stone
| thus removing the chips and dust
| which otherwise would assist In filling
| the yoids. Screening should not be
| practised except when an injurious
| amount OF clay or loan has become
| mixed with tho stone.
M BY asserting the stone
and laying II in layers accord
| ing 10 the size of the stone.
The practise of forming road
with strata of screened stone assorted
| in different sizes and growing smaller
towards the top Is erroneous; the
| smaller stone VIII find Its way TO the
| bottom. and the larger stone Will
| work to the surface and ruts will be
| quickly formed. 1t WIN be porous, and
| no matter how heavily rolled. 1t Will
be continually crumbling.
go BY covering the surface ~ the
compacted stone with layer OF stone
(e) BY the use OF an excessive
quantity of binding material
IO) BY the use of an excessive
quantity OF water when rolling"
WE USE ERRONEOUS METHODS
All these erroneous methods arr
1 ttt,rs 4