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)

CSX works on upgrading main line in Callahan north of Baldwin turnout as two trains race by

I had a couple of spare hours today before the weather got hot so I walked to the US 301 viaduct in Callahan.  CSX is doing some major work on the main line between the Old Dixie Highway and CR 108 grade crossings in Callahan. Countless dump trucks have been hauling dirt down the west bank of the double track in order to level the rail bank for a construction road.  Rumor has it that they are preparing to improving the Baldwin turn out in Callahan to meet the demands of more train traffic using the Callahan-Baldwin line. They are going to straightening out that sharp curve that trains have to negotiate at such a low speed by moving it further north toward Old Dixie Highway. This will allow them to double curve the turn out as well, although I haven't hear any confirmation of this.
Luckily, while I was on top of the viaduct, 2 speeding southbound trains raced by at the same time. First a coal train appeared around the sharp curve north of the Old Dixie Hwy. grade crossing followed by a speeding Intermodal bound for the Jax Intermodal yard in Dinsmore. I will update further if I see or hear more on the CSX construction project in Callahan.

Workers build a construction road on the western bank of CSX's main line just south of the Old Dixie Highway (CR 115) grade crossing in Callahan.

 A southbound coal train rounds the bend and speeds across the Old Dixie Highway headed for one of Florida's numerous coal-hungry power plants.

 Just as the coal train crosses the Alligator Creek Trestle and approaches the signals for the Baldwin turnout, an Intermodal train rounds the curve.

 CSX engine 928 heads leads a trio of locomotives and its heavy load of coal cars through the CR 108 grade crossing with the Intermodal in hot pursuit.

Not to be out done, A duo of CSX engines lead by #314 races past the Baldwin turnout and one by one passes the coal-laden cars.

The US 301 viaduct shakes as both southbound trains thunder on the CSX main line below.  Soon more freight trains will opt for the Baldwin turnout as the Orlando commuter trains come online in the near future.

As both trains disappear underneath the viaduct, I step across the roadway to the south side of the bridge. I caught the rear end of both trains disappear into the fog of the late summer morning. The FRED of the Intermodal finally passed the FRED of the coal train as they crossed the Pickett Road grade crossing south of Callahan.