27 



161. The contractor shall so conduct all his operations as 

 not to impede the operations of the road, interfere with the 

 work of other contractors, or close any thoroughfare by 

 land or water. 



162. The contractor shall assume all risks of accidents to 

 men or material prior to the acceptance of the finished 

 structure by the Railroad Company. 



The contractor must also remove all false work, piling 

 and other obstructions, or unsightly material produced by 

 his operations. 



FINAL TEST. 



163. Before the final acceptance the Engineer may make Final Test, 

 a thorough test by passing over each structure the specified 

 loads, or their equivalent, at a speed not exceeding 60 miles 



an hour, and bringing them to a stop at any point by means 

 of the air or other brakes, or by resting the maximum load 

 upon the structure for twelve hours. 



After such tests the structures must return to their orig- 

 inal positions without showing any permanent change in 

 any of their parts. 



EXPORT WORK. 



All plans, including working drawings, must be submitted Export work, 

 for the examination and approval of the Consulting Engi- 

 neer before the material is ordered or any work done. 



Any proposed modification of accepted plans, to adapt 

 them to the plant and methods of the manufacturer or to 

 facilitate the prompt delivery of the work, must also be 

 submitted to and approved by the Consulting Engineer, 

 before such changes can be allowed. 



In all designs, the length and size of parts must be so 

 arranged that they can be readily handled and stored dur- 

 ing transportation to the site. 



Length of bars, posts, chords and pieces of small section 

 must not exceed < et. 



Length of girders or girder sections over feet 



in width must not exceed feet. 



