The Manchester journal. [volume] (Manchester, Vt.) 1861-current, 1912-07-04

uNfrEp STATES oFfIrE on FrnLfc ROADS
congress approved March ,. 1898, max
Ing appropriation OF $4,000 Tot the de
paftment Of agriculture. The clause
relating TO this work provided that the
secretary 81 agriculture should make
Inquiries Ia regard 10 systems Of road
management throughout the United
states, make Investigations IN regard
IA the best methods Of road making,
prepare publications on this subject
aud assist agricultural colleges and eH
pertinent stations 10 disseminating 10
formation.
since 1885 The total amount appro
prlRtcd for the Office Of public roads Il
$500 SEQ. and sinee It's establishment
tile office has Issued 40 bulletins, "
circulars. o farmers bulletins, 81 year
book reprints and ~ annual reports, .
total Of is3 publications,
The olilce has directed The punstruc
tion " about BAG object lessons and
experimental roads. illustrating matad
ani. bitumlnous macadam. brick, gray
H. sandclay, she'll and earth construc
ilon. The approximate expenditure Of
these object lessons and experimental
roads by local authorities has beer
500. TG2. and the subsequent road work
due directly 10 the object lesson roads
represents expenditures running vel
up into millions. Lectures and person
al advice by engineers and experts have
constituted 9 prominent feature Of the
work OF The office since its establish
mont. The road material laboratory
was installed IN December. 1900 and
from that time 10 July !. 1911, about
$3.50 samples Of road material have
been received from practically every
state ia the Union aud tested 70 deter
mine their character and value for road
building
4 Photographic laboratory vas IN
stalled Ia January, 1909, and has now
complete OUTFIT This was the direct
result Of a great need for Illustrated
lectures The Office has now collec
ton Of about Goo negatives and about
3 600 slides. many OF which have been
eolored. Those Illustrate all phases Of
rcad work.
Experiments have been conducted
with oils. fars. rock asphalt and yar
Gus preparations Tor the purpose Of
preventing dust and preserving mac
adam roads from destruction under
modern traffic conditions The Office
has conducted Investigations 10 deter
niue the feasibility Of the andclay
method of mad building In the south
eru states - wei as IN the prairie
states. and this method Of construction
has been found 70 be quite practicable
especially 10 the south.
A study Of The construction o. reads
Of natural soils by treatment With as
phaltic oils. has been made and was
published In SINGULAR No. ~. The Office
j. conducting investigations on the use
~ slsg as road material and the
improvement ~ sand roads In parts Of
che country who're clay IS not accessi
ble. Practical efforts have been made
toward bringing about the more gener
nj Use % the splis los drag N the main
icnance q earth roads
one " the unique aud striking |
sxhihlt. 81 the Alaska Yukon Pacific /
exposition consisted of a series o. min |
ialurc models Illustrating every known |
,yr~ o. improved road and The various
rod building derlvs such Is rollers |
add efashefs ~ Rctoal Operation
This erhlhd ares designed ard prerar |
~ hF tie o1.ec. and since The r1pas
iau CLOSED tniiar exhibits have been /
sslown 10 msal laFts ~ the unlted /
STATES fafiy through the medium Of 1
.tp0siiicns aad partly ny mems Of ex
hihit iraius opefated ~ several rail- /
vsds iet,arurs and demonstrators
areompang these exhibits making them
80 reaiisg seht.als - Instruction ia rosd /
hsildiug
Dndaate Ia engineering sre ap 1
talniea fesm colleges earh year after
a cnmpesiive examination, and are
egsen thcspaFh training while render.
i1g Jsattifkl services 10 the govern.
ineni IN this was AZ efiieleut corps ~
.aEiBs@rseis hrlng halli Wn which VIII
ala ihe Development 81 road building
flong TsWggg times. hggh dufing and
aficf their connection VITA tho GOV !
srrmrn' TITS gsA aas bssun 81 the 4
@ ~ yesf issfs
iHfpsgigailaas iAia The decomposition
~ otA powders ahdef ths sotioa ~
rsier hsfs - % iuAr4smi discover.
- VITA fegsgenee 70 ingrWaslne tAe ee'
las Wake ~ faad materials. The
tsttssties iaio he ecfrussoa q ifop