AFAIK the SRBs were made in segments to make them rail transportable from the factory (in a state with a friendly congressman ;-)) to the launch pad. There shou

AFAIK the SRBs were made in segments to make them rail transportable from the factory (in a state with a friendly congressman ;-)) to the launch pad. There should be pictures of the segments being transported on rail from that one time the train derailed due to trestle collapsing under it.