Arrow - Detour Routes

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Matt GoodmanColumbus, Ohio
I don't know that this is the reason that C&O couldn't accept Class Y locomotives, but railroads complied with Cooper Ratings.  This was a measure of the maximum weight a bridge could handle, which among other things, was based on the spacing of piling.  EXAMPLE:  The loading piers for PRR's Cape Charles-Little Creek ferry could accept one car weighing 263,000 lbs., but not two coupled together. Cooper Ratings on N&W's Abingdon Branch (50-some timber trestles) limited gross weight of a car to 220,000 lbs.   As I recall, for locomotives, the rating was based on a 2-8-2, but I'm not familiar driver spacing OR diameter.                                                                                                                                                                      Harry Bundy 
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