Arizona republican., 1922-06-18
Much Road Improvement
Is Nov Going FORWARD

the United States, including that
made from Mexican oils, that made
from domestic petroleum and that
known as native" asphalt, was o.
023,e65 tons in 1920. In 1915 the total
consumption amounted to 1,225,447
tons or little more than half the 1920
consumption.
In the production of asphalt from
domestic petroleum in 1920, Califor-
MIA, with nine operators, ranked first.
Texas. with four operators, ranked
second and Indiana, with three oper-
ators. ranked third, both in quantity
and value. These three states re-
ported 81 per cent Of the total quaint
tv and 80 per cent of the total value
Of production in the United States.
In 1915, 664,503 tons of asphalt were
nroduced from domestic oils. BY 1920
this had increased to 700.496 tons.
Bio Road Program in Tennessee
The state of Tennessee has inaugu
rated new federal aid road building
program involving the expenditure of
SIS, OO, 600 for PSI miles OF roads in 20
counties. While this program is be-
ing carried out, campaign is under
way to increase the state highway
fund by means OF a gasoline tax ana
a bond issue. This movement has
of the state and the Tennessee Good
Roads association. The highway de-
partment of the state recently let
contracts for 1856 miles of bitumi-
mons n1acadam roads in the vicinity
of Altamont. Ashland City, Elizabeth,
Erwin, Greenville, Huntington, King
ston. and cambridge. the cost OF
which will be $4,SS4,500.
The California state highway de-
partment has begun a systematic
widening of state highways in many
parts of the state and has adopted
the Maryland policy of surfaclng
-some of its concrete roads with as
phalt California has also begun
work on considerable mlleage OF oi-
luminous macadan1. In Glenn coun-
ty three and one half miles Of road
will be of bituminous macadam, five
inches thick and 20 feet wide. Five
miles of concrete road in Placer
county will be surfaced with three
inches of asphalt. The same treat
ment will be accorded three miles be-
tween Fairfield and Vacav1ile In So
lano county. In Sonoma county,
three miles north and one and one
quarter miles south from the Petalu-
ma city limits, total distance OF
four and one-half miles will be
widened to 20 feet and surfaced with
asphalt. Similar treatment VIII be
given 16 miles of concrete roads IN
MERGED, MADEIRA and Kern counties.
Quotes Republican
Perhaps no stretch of highway in
the United States will be watched Tor
it's service qualities more than the
new Phoenix Tempe highway in Ari-
IONA but recently completed" says
Pennypacker. There being two
schools of highway engineers in the
United States, one advocating the
rigid pavement to Withstand the i'm
pact shocks of heavy traffic and the
other advocating a cushioning pave
ment to absorb the shocks, both
schools will watch the behavior of
the new road with great interest.
The final three mile stretch OF the
Phoenix highway was constructed OF
asphaltic concrete in both base and
surface. 1t will furnish an interest
ing comparison with the portland
cement concrete road that adjoins it
on the east. The asphaltic concrete
pavement fits the theory of the en-
gineers who advocate a resilient or
shock absorbing pavement and the
cement concrete meets the views of
those who urge the rigid or resistant
type. 'Asphaltic concrete base and
surface pavements,' says The Arizona
Republican. have been in use in the
Salt River valley for eight years -
principally in the city of Phoenix
and have demonstrated that the type
is successful under local soil, climatic
and traffic conditions. There has not
been one failure in the several humid
red thousand yards OF this type laid
in the valley.
+" Recent tests conducted by the