ROADS 



213 



Road drag. For earth and gravel roads the most satis- 

 factory method of maintenance is by passing over them after 

 each rain with a road drag (Figs. 185, 186). These road 

 drags were formerly made of a split log, from which came 

 the name "split-log drag." They can be made of sawed 



^-J/ee//>/ate frrxf- 

 FRONT ELEVrfT/OM 



Fig. 185. Construction details of the King road drag 



lumber, but at the present time all road machinery com- 

 panies manufacture and place on the market metal road 

 drags superior to the wooden ones. Successful results from 

 road dragging are obtained only by thorough and system- 

 atic work. Whenever there has been enough rain to wet 

 the surface of the road and cause it to work up under the 

 traffic, the drag should be used. The length of time which 



