SLEDS AND SLED-HAULING 



I6S 



a solid bed over 



depressions and smooths off the road makin 

 which the sleds may pass. 



Swamps containing live springs are a source of annoyance 

 when the road must pass over them, because they are the last 

 part of the road to freeze over in the fall and the first part to 

 thaw in the early spring, and should, therefore, be avoided when 

 practicable. When the road crosses low marshy grounds or 

 swamps, corduroy is used, which serves to give a broad bearing 



■A Two-sled Road, showinj;; the Method of building up 

 the Grade on Side Slopes. 



surface to the road and prevents the sled runners from sinking 

 into the mud. An average day's work for one man is to cut poles 

 for and build one rod of corduroy. The cost ranges between 

 60 cents and $2 per running rod. 



When roads are built on side slopes, the upper side is cut down 

 and the lower side raised by laying long skids parallel to the 

 outer edge of the road and placing short transverse skids on 

 them. The space between the skids may be filled with brush, 

 or left vacant and snow allowed to fill the interstices. On roads 

 where the traffic is heavy the slope is either cut down enough 



