Those prices are prohibitive in many
localities, but when the materials that
distinguish our present separate and
costly types of roads can be so
blned as to give better service at
ing of $2,000 to $5,000 a mile we obtain
what may well be called the American
standard road.
A natural asphalt and good stone
make an ideal and resilient wearing
surface, and the concrete provides
unyielding foundation. It having been
demonstrated that this composite type
of road can be built for $12,000 or less
per mile, the taxpayers are certain to
adopt it once its true merits and
on con
com
a sav
an
econ
omy are understood.—Good Roads Press
Bulletin.
Cause of Road Waves.
Road waves and wrinkles, their
cause and remedy, have been a sub
ject of recent discussion In this coun
try. In England also it has received
renewed attention lately. B. S. New
combe, a surveyor, who has given
much study to roads in England, con
tributes the following to the discus
sion in that country:
"The primary cause of the road
wave is an unstable foundation, and
It Is added to if poor or unsuitable
material is used, the only permanent
cure being to give an absolutely rigid
'bottom.'
"Subsoil draining is nearly every
thing as a palliative and with good
new material much can be done even
when the bottom of the road is al
ready damaged and grooved so that
it holds water and remains soft.
