82 BULLETIN 440, U. S. DEPARTMENT OP AGEICULTUEE. 



trams. The cost of such track, including rails, rail fastenings, and 

 laying, is about $22 per 100 feet. 



The usual yard arrangement provides for a row of lumber piles on 

 each side of every platform. Foundations must be constructed of 

 timbers for each pile. They contain from 400 to 500 feet of lumber 

 apiece; and the cost of construction, including the value of the 

 lumber, is usually about $8 each. Enough space is left between 

 adjacent platforms to allow room for the construction of a wagon 

 road, yard car track, or loading spur between the two series of 

 lumber piles. 



Yard tracks are commonly 36-inch gauge with 16-pound rails, 

 and are constructed at about the following average cost per mile: 



Steel and fastenings $1, 100 



Ties 500 



Grading 200 



Laying and surfacing 300 



Total 2, 100 



Loading spurs are standard gauge with about 35-pound rails. 

 The cost per mile of length is reckoned as follows: 



Steel and fastenings $2, 500 



Ties 1, 000 



Grading 500 



Laying and surfacing 500 



TotaL.. 4,500 



A yard with a storage capacity of 12,000,000 feet, at a representa- 

 tive double-band mill operating one shift daily, contains about 500 

 pile bottoms, 7,000 feet of platforms, 7,000 feet of yard track on 

 platforms, 1 mile of loading spurs, and 1 mile of ground yard track. 

 The cost would be reckoned as follows: 



Pile bottoms. $4, 000 



Platforms 5, 040 



Platform tracks 1, 540 



■ Yard tracks 2, 100 



Loading spurs 4, 500 



Total 17,180 



,, The cost of a yard of the platform type at a double-band miU with 

 an annual output of from 18 to 20 miUion feet of lumber is usually 

 from $16,000 to $20,000. The cost of a yard at a mill producing 

 from 35 to 40 miUion feet annually would be about twice as much. 



The second kind of yard is one having the tracks located on the 

 ground. The piles are on both sides of parallel tracks in much the 

 same manner as with platforms. The cost, computed on the same 

 basis as above, is about $15,000. Another yard of this same type 

 has dirt roads between the piles^ upon which the lumber is dis- 



