I was recently out at Victorville, CA and went out to see the famous BNSF Transcon route. What amazed me was the number of loose spikes that I saw. Some of them look as though they were never driven down. Would this be caused by vibration? While trackside, I watched several trains go by and the track didn’t flex at all. Check out the photo below.
Loose spikes usually mean the ties have been pumping (moving up and down as a train rolls by). I’m guessing you observed the track after BNSF re-tamped the area to stop the pumping and before before they re-drove or replaced the loose spikes. Or the train you watched wasn’t heavy. Where’s the muddy fowl?
Absent of an explanation, I guess being an old rail hand he or she is laughing mockingly at the ignorance of such a question/guesses. Why, though, on a forum designed for railfans to discuss such things? I realize to him/her this is a simple, everyday occurrence, but …
If I recall properly what I was once told, loose spikes on just a few-several ties in one area isn’t a big deal, because there are so many more ties in the immediate area to hold the rail secure. There is an exact spec, which I don’t recall, but it’s something like 6-8 continuous feet with no ties spiked in place, before the rail is going to be at risk to move a dangerous amount.
Only tangentially related, but this Military spec for the maintenance of RR track is very informative
I recall a video circulating a while back showing a length of rail held in place only by the joints with the adjoining rails - there were no spikes (or anything else) holding the rail to the ties. The video showed a train passing over the rail, with the rail flopping all over the place…
Thanks for the link to the Tech Manual…just a techincal point, a Mil Spec is a bidding document, more useful for bean counters, engineers (civil type) and bidding…tech manuals are more useful to folks who have to work with or on the systems… Items are usually built to Military Specification, which will usually specify that the item be delivered with a Technical manual ™
And here I thought it was Sakahrov(sp) or Solgeneitsen(sp), and you were making some kind of statement that went over my head. Wait a minute. Maybe that’s who is in Sol’s avatar? If you were simply going for the Grumpy Old Men direction, why not the classics-Walter Matheau and Jack Lemmon?[;)]