332 . LOGGING 
Loggers in all sections spend from 60 to 90 cents per thousand 
feet of timber hauled for the construction of the road, from 20 
to 30 per cent of which is expended on the main line. The cost 
of main line logging roads, exclusive of rails and other supplies, 
in the southern pine region ranges from $1000 to $2000 per 
mile, and on the Pacific Coast between $3000 and $6000. Spur 
lines in the South cost from $300 to $750 and on the Pacific 
Coast from $2000 to $3000 per mile. The cost of a main line in- 
cluding new steel rails, angle bars, spikes, crossties and supplies 
will exceed the figures given by from $3000 to $4000 per mile. 
Maintenance-of-Way. — Section crews are employed to keep 
the road ballasted up, maintain the gauge, keep the drainage 
ditches open, replace broken or decayed ties and to make any 
repairs that may be needed. Maintenance on main lines requires 
one man per mile, and on spurs one man for 2 miles of track. 
BIBLIOGRAPHICAL NOTE TO CHAPTER XVIII 
Amburn, W. W.: Standardized Timber Bridge for Logging Railroads. 
The Timberman, Feb., 1919, p. 46. 
Byrkit, G. M.: Machine for Picking up Railroad Track. The Timber- 
man, August, 1912, p. 48. 
Byrne, Austin T.: Highway Construction. John Wiley and Sons, New 
York. 
Corps of Engineer's, U. S. Army: Engineer Field Manual, Professional 
Papers, No. 29, Washington, 1917. 
Corps of Engineers, U. S. Army: Military Railways, Professional Papers, 
No. 32, Washington, 1917. 
Cowling, H. G.: Standard Frame Trestles for Logging Railroad. The 
Timberman, July, 1921, pp. 34 and 36. 
Crosby, Lloyd R. : Construction of Logging Railroad Tunnels. The 
Timberman, March, 1923, pp. 34 and 35. 
Davis, Minot: Steam Shovel in Logging Railroad Construction. The 
Timberman, Nov., 1921, pp. 66 and 68. 
Engineer's Handbook. Useful Information for Practical Men. Com- 
piled for E. I. duPont de Nemours Powder Company, Wilmington, Dela- 
ware, 1908. 
Fish, J. C. L.: Earthwork Haul and Overhaul. John Wiley and Sons, Inc., 
New York, 1913. 
Gillette, H. P.: Earthworth and its Cost. McGraw-Hill Book Co., 
New York, 1912. 
Gillette, H. P.: Handbook of Clearing and Grubbing. Clark Book Co., 
New York, 1917. 
Gillette, H. P.: Handbook of Cost Data. Myron C. Clark Pub. Co., 
Chicago, 1910. 
