4o8 



LOGGING 



stringers and the foot planks in the flume ready to float to 

 the front. A man walked the flume and kept the material 

 moving. 



Two top men at the front placed the stringers and foot planks 

 in position, trimmed the boxes, set them in place, adjusted the 

 brackets and nailed them to the boxes. A crew of four men 

 placed from twenty to twenty-five 1 6-foot sections in ten hours. 

 This did not include an 8-inch top board on the box which 

 was not added until the remainder of the flume box was com- 

 plete. 



Cost of Construction. — The cost of flumes is governed by the 

 location survey charge, by the labor charge, which depends chiefly 

 upon the height of the flume, by the values of the material, 

 and by the cost of transporting the supplies to the flume site. 



AMOUNTS OF LUMBER, NAILS AND DAYS' LABOR REQUIRED 



TO CONSTRUCT LUMBER FLUME TRESTLES OF 



VARIOUS HEIGHTS 



