Track Upgrade kicks in high gear on callahan-baldwin sub

While i was on my way to work today, i saw this unusual train today heading south on the CSX main line. It slowly exited onto the Baldwin-Callahan sub (MP 20).  I drove down to Sandy Ford Road grade crossing (MP 18) and noticed a lot of CSX workers removing the old track. They also installed new train signals with Darth Vader shields several hundred yards north of Sandy Ford. I then drove to the Crawford Road grade crossing at MP 16 and took some pictures of this unusual work train spraying some kind of liquid on the tracks. (upon further research it was a LORAM rail grinder train) Rumor has it that CSX is getting ready to double track some of this 20-mile stretch of important stretch of track. (If you look close enough in the bottom picture, there is a NB manifest waiting in the distance on the Crawford siding for this LORAM to pass)