STATE GEOLOGIST. 113 
face layer after being thoroughly rammed and floated was indented with 
an imprint roller in order to give a better foothold for horses. While 
some repairs have been made, the streets do not show any patchy appear- 
ance and along the sides the surface has not worn enough to obliterate 
the imprint marks which are clearly shown in figure 58. The worst worn 
place in the streets is shown in Figure 59 where the street was narrow 
and drained toward the center. Here the wheels have followed in the lines 
cut to demark the blocks, and have worn the cutting lines about 2 inches 
deep. The streets cost $2.15 per square yard. There appeared to be no 
complaint against the streets on account of slipperiness or because of the 
jar or lack of elasticity. Such streets are easily cleaned and dry up quickly 
after storms. 
FS 
2 RREEPAREE ey 
Pe ARansstaK a SOF 
Fig. 58.—Concrete Pavement at Bellefontaine, Ohio. In the Foreground 
Will Be Seen Surface Marks Not Destroyed After Years of Use. 
SIDEWALKS. 
Concrete sidewalks have been used many years. There is no one 
of the requirements for a good sidewalk which concrete does not com- 
pletely fulfill. It makes a smooth walk and yet it is not slippery. It is 
durable, wears evenly, does not absorb water seriously, dries up very 
quickly, does not glaze over with ice as quickly nor as completely as does 
brick, does not flake up nor disintegrate under action of frost. In fact, 
it is ideal. In some cities there is a prejudice against concrete walks 
because unprincipled or ignorant contractors have done poor work, and 
like poor work in any business, it has not proved satisfactory. Wherever 
8—S. G. 
