Track Switch. On Saturday, July 29, 2023, AMTK MP15DC 539 (née-PLE 1597, EMD, 5/1975) led a string of stone cars across the Warehouse Point Railroad Bridge above the Connecticut River on the Amtrak MRS(Mill River to Springfield)/Springfield Line from Windsor Locks to Enfield, Connecticut, becoming the first train to travel on these tracks in several decades. Recent weekend outages on the line prepared for this final step on the part of the project to realign the existing tracks to carry trains over this track on the geographically north side of the bridge while repairs are made to the track on the south side of the bridge. This girder bridge with a truss main span was built in 1866, rebuilt in 1903, and is presently being rebuilt again to secure its future. The train dropped ballast on the new alignment on both sides of the bridge as well as making several extra trips across to help settle the new track in place.