. The design of the Chicago and Northwestern Railway train shed . rficks, or to in- I I crease the present freight yards facilities by transfering the pas-senger traffic to a new location, and eliminate the danger alwayspresent where passenger traffic is through large yards. The chosenlocation has an advantage in that the work of construction can becarried on without the hinderance of train traffic, but has a dis-advantage in that materials and supplies have to be hauled consider-able distances because of the lack of supply tracks. The Chicago& North Western Railway Company created the office


. The design of the Chicago and Northwestern Railway train shed . rficks, or to in- I I crease the present freight yards facilities by transfering the pas-senger traffic to a new location, and eliminate the danger alwayspresent where passenger traffic is through large yards. The chosenlocation has an advantage in that the work of construction can becarried on without the hinderance of train traffic, but has a dis-advantage in that materials and supplies have to be hauled consider-able distances because of the lack of supply tracks. The Chicago& North Western Railway Company created the office of Terminal Engi-neer, whose duty it is to handle all of the engineering of the pro-ject. The railways regular Land Department cares for the purchas-ing of the land, and its Law Department, the legal work necessaryin condemnation suits and drawing of contracts. The preliminary survey resulted in deciding upon the layoutas heretofore mentioned and shovm in Pig. 1. This consists of two four-track approaches (one from the north and one from the west) ^—^^-1^. merging into six tracks called the Terminal Section (from the junc-tion of the approaches to Lake Street) ending in a sixteen-tracktrain shed, three hundred and Uventy feet wide, and station; all ofthe work being elevated and not a street depressed. These divisionswere made for convenience in letting out the work and for ease inaccounting. That portion between Lake Street and the station is j ! knovm as the Train Shed and Train Shed Track Section, and will be thesubject of this thesis. ORGAITIZATIQN; As mentioned above the engineering work is under the directionof the Teminal Engineer, The work is naturally divided into theoffice and field work. The former is under the direction of a Chiefdraughtsman cind consists of making all the designs and plans for the j work. The field work is under an Assistant Terminal Engineer, whohas four Assistant Engineers under him, a timekeeper who checks thepay rolls, a material clerk who see


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