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| Re: G Train: Present and Future (Opinion Piece) (1149702) | |||
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Re: G Train: Present and Future (Opinion Piece) |
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Posted by Jackson Park B Train on Sun Apr 8 22:56:51 2012, in response to Re: G Train: Present and Future (Opinion Piece), posted by J trainloco on Sun Apr 8 21:27:27 2012. The concept is the same. The tight vertical clearance means the strengthened beams(headers) will expand horizontally rather than vertically so as to have more mass bearing the load which has increased by the removal of the columns to clear a crossover. |
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