AUGUSTA — It’s all-aboard for Gov. John Baldacci as he spends the day checking out rail projects in Maine.

The governor on Friday will join other state officials, major shippers, and officials for Pan Am Railways, St. Lawrence and Atlantic Railroad and the Northern New England Passenger Rail Authority as they tour four significant rail projects by train.

The tour begins in Waterville at Pan Am facilities where locomotives are repaired. Next stop is a ribbon cutting of the Danville Junction Gateway Project in Auburn, which will improve freight service.

Other stops include Royal Junction to observe Pan Am crews installing new rail for the Downeaster expansion to Brunswick, and finally Rigby Yard in South Portland.