THE LOGGING ENGINEER IN THE NORTHWEST 



379 



STEAM SHOVEL AT WORK ON NEW EXTENSION, SIMPSON LOGGING CO.'S R. R. AT 

 SHELTON, WASH. CONSTRUCTION OUTFIT OWNED AND OPERATED BY THE LOGGING 

 COMPANY. 



from; cross sections of the excavations 

 and fills, including drains, culverts, 

 trestles, bridges and equipment. We 

 have a number of logging bridges over 

 100 feet high and from 600 to 1,000 

 feet long in this State and every year 

 as the logging gets further back into 

 the foothills, the longer and more per- 

 manent are the main lines of the log- 

 ging railroads. 



You may find several preliminary 

 "fly lines" necessary in the very diffi- 

 cult places before the final location can 

 be determined. The preliminary lines 

 are platted in the office, usually by "lat- 

 itudes and departures," and from your 

 cross section topography, the final lo- 

 cation can be sketched in, subject to 

 further changes on the ground, if 

 necessary. 



The spurs are laid out much in the 

 same manner, economy, however, being 

 the main consideration. You can af- 

 ford to haul over a 6 per cent grade and 

 32 degree curve for a few months on 



spurs where two or three loads can be 

 switched out at a time. In most in- 

 stances a light locomotive, geared or 

 direct connected, is kept especially for 

 switching from the landings on the 

 spurs to the main line side track. 



Then there is the maintenance to be 

 supervised, and a close watch kept on 

 construction. At the end of each year 

 you will have a detailed report on the 

 railroad work, cost of engineering, con- 

 struction and maintenance, cost per M. 

 for timber coming out over each spur, 

 and cost per M. over the main line. 



Another duty will be the laying out 

 of pole and skid roads when necessary. 

 Together with the spur work this 

 should be done with the co-operation 

 and help of the logging foreman. Your 

 idea must always be to facilitate his 

 work in the actual logging operation as 

 much as possible, and you must be 

 aware of his future plans, governing 

 your work accordingly. 



As a general rule you will co-operate 

 with the foreman and superintendent in 



