DUST PREVENTION AND ROAD PRESERVATION, 1914, 43 
SUPPLEMENTARY REPORT OF EXPERIMENTS MADE AT GARDEN CITY, 
DODGE CITY, BUCKLIN, AND FORD, KANS., 1908. 
SAND-CLAY. 
The original report of these experiments was published in Circular 
No. 90, and reports of annual inspections are given in Circulars Nos. 
92, 94, 98, and 99, Office of Public Roads, and in U. S. Department 
of Agriculture Bulletin No. 105. The following are reports of 
Inspections made in 1914: 
EXPERIMENT AT GARDEN CIty. 
This road was inspected November 10, 1914, and wheat hauling 
with 4-horse teams was in progress at that time. There had been 
practically no rain since June, but the road had not deteriorated 
seriously. 
There are no unrepaired holes. On the day of inspection 12 small 
holes and depressions were filled with fresh clay. There are five 
depressions varying from 2 feet square to 5 feet square which should 
be filled with clay before they are cut through. 
The entire section has gradually flattened and should be aealbariacl 
There are long wide ruts from one-half to three-fourths inch deep 
and the entire surface is finely pitted. It is not so rough, however, 
as to make riding uncomfortable. 
The road is being maintained by dragging and by filline worn 
places in the manner indicated. 
EXPERIMENTS AT DopGE Ciry. 
This road was inspected November 10, 1914. There had been no 
rain in this vicinity for some time and the soil was very dry. Wheat 
was being hauled to market, and the road was in such poor condition 
that the traffic from a large territory used a roadway 1 mile east of 
this. 
About two-fifths of the sand-clay surface was broken through, and 
the sand from below had come to the surface. The failure had 
taken place over irregular areas. In some places it was confined to 
the rut or to the middle half of the road. There were occasional 
stretches 30 or 40 feet long that were in excellent condition. Con- 
sequently, the surface was so irregular and so deeply cut that traffic 
was confined to the ditches entirely. 
The failure was no doubt largely due to the fact that the road had 
not been properly dragged after the heavy spring rains, and the weak 
places developed at that time were worn through by the heavy 
traffic during the long drought of the ensuing summer and autumn. 
The road is now beyond repair, and reconstruction is necessary. 
