quote:Originally posted by RRRICH: Interesting info, George -- what is your source for this info? I'd like to look at it, since I have a background in engineering geology. If they "bridge" the slide, won't that also involve extensive realignment of the tracks?
I can see possibly bridging that entire "horseshoe curve" at some time in the future, but that definitely would involve considerable realignment. Remember the Thistle landslide in 1993 (?)......
Week's delay in answering due to pneumonia. First time I have been online since Tuesday last week. The "pile driver being brought in" was seen on trainorders. The bridge or slope reinforcement are my own thoughts on what they would want it for. They could also be thinking of building retaining walls. However, unless the foundations are DEEP the whole retaining wall could still slide down the hill.
If they do a bridge there would probably be minimal realignment from where the track was before the slide. First because they would want a low bridge if possible, not a high one, and because they can not do anything that results in more than the slightest reduction in length of line.
Bridging or otherwise removing the horseshoe curve, actually double horseshoes: Not going to happen. What we have here is considerable added length over the straight line distance for the purpose of keeping the grade down to a managable level. This length cannot be shortened without steepening the grade.
Posts: 2810 | From: Olive Branch MS | Registered: Nov 2002
| IP: Logged |
posted
Thanks for the reply, George -- I hope you are feeling better. What you said about bridging the entire horseshoe curve area and maintaining grade sounds quite reasonable to me -- after all, there was a reason why the horseshoe curve alignment was built in the first place.......
Posts: 2428 | From: Grayling, MI | Registered: Mar 2002
| IP: Logged |
Printer-friendly view of this topic
