locked Re: Southern weed spraying trains in 1960s

Stephen Warner

Just a comment on the bridge greasing and the discontinuing.  In the late 70's, I went with Bernie Schwartz to a bridge that collapsed under a loaded Big Red coal train over the Big Warrior River on the NA.  It was a thru truss, and a hanger had broken.  So it was to be ultra sonic tested, but first all the grease had to be removed to allow the testing.  They found more cracked hangers (this led to replacing thru  truss bridges as much as possible), and the R&T Dept also recommended removing all grease from bridges, since it covered cracks and faults from the periodic inspection by B&B.  So rust and weathering is safer than uniform grease covering.....

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