Callahan to Grand Junction (Jacksonville)

From Callahan (MP 624.3), where an erstwhile SAL line once trailed in from the northeast, the Callahan subdivision to Baldwin heads away on the southwest (MP 624.2), with 20 mph speed limit on the turnout to that line, and the main line continues south-southeast, with extra track to the east, past crossovers at South Callahan (MP 624.5), where the Callahan Block ends and the Dinsmore Block starts and the speed limit is 65 mph past the crossovers, Intermediate Signals, Intermediate Signals and detectors at Ratliff (MP 628.5), an angled grade crossing, Intermediate Signals at Cary, a grade crossing, Dinsmore, signals at Dinsmore Connection (MP 635.0), where the Dinsmore Block ends and Yard Limits start and there is a wye on the west side with the line southwest to Duval Connection, two grade crossings, Intermediate Signals at Picket, MP 638.7, where the overall speed limit drops to 40 mph and the line turns southeast, a bridge over a creek, a grade crossing, a road overbridge, a signaled platform track on the east side of the main line, the Jacksonville Amtrak Station (MP 639.4), where there is a platform (with stub track to its east), umbrella shed and a white-painted brick depot on the east side of the line, with a south end stub track also east of the platform, a wye on the east side, with a line to the docks, and a connector from Carnegie trailing in on the west side at Grand Junction.