Now owned by Lake State Railway.
Numerous industrial and belt lines existed in the Saginaw and Bay City area, which included various interlockings. Because of many historical inconsistencies in the naming of interlockings, and the early closure of some interlockings, it has not been possible to provide complete historic information. Included are confirmed interlockings with longer histories.
HOYT (Saginaw)
Mechanical interlocking installed 1896
Former crossing with New York Central Saginaw Line, not included in Conrail 1976.
EAST SAGINAW
Electric interlocking installed 1903
Interlocking rebuilt 1946
Little is known about this interlocking, other than it may have been by a freight yard.
SAGINAW (Washington Ave.)
Mechanical interlocking installed 1889
Electric interlocking installed 1946
Junction with Bay City Subdivision.
MERSHON (Saginaw)
Mechanical interlocking installed 1886
Closed 1987
Crossing with New York Central Saginaw Branch, and former crossing with Grand Trunk Western Saginaw Subdivision. After 1939, Grand Trunk Western had trackage rights via New York Central through Saginaw.
MIDLAND
Mechanical interlocking installed 1893
Former crossing with Midland & Hubbard Railroad, abandoned 1899.
BAY CITY (26th Street)
Mechanical interlocking installed 1889
Click for Google Map of Bay City
BAY CITY (Water Street Jct.)
Tower listed with New York Central
WOODSIDE (Bay City)
Tower listed with New York Central
NORTH FLINT
Interlocking installed 1903
Closed by 1930's
Former crossing of Old Main Line with Grand Trunk Western Flint Old Main Line. Was a non interlocked crossing in final years.
FLINT
Interlocking installed 1903
Former crossing of Old Main Line with Grand Trunk Western main line, prior to elevation Grand Trunk Western line.
NORTH KEARSLEY (Flint)
Electric interlocking installed 1923
Replaced with automatic interlocking by 1970's
Former crossing with Grand Trunk Western Flint Old Main Line.
KEARSLEY (Flint)
Remote interlocking installed 1923, controlled from North Kearsley
By 1970's remotely controlled by CTC dispatcher
Crossing with Grand Trunk Western main line.
HOLLY
Electric interlocking installed late 1920's
Closed by 1970's, remotely controlled by CTC dispatcher
Crossing with Grand Trunk Western Holly Subdivision.
WIXOM
Electric interlocking installed 1900
Closed 1957, remotely controlled by CTC dispatcher
Former crossing with Grand Trunk Western Jackson Subdivision, abandoned.
Bridgeport-Mt. Morris
Installed 1928, control machine in dispatcher's office at McGrew Yard (North Flint)
Replaced 1956 with new control machine in Saginaw
CTC on single track segment on what otherwise was a double track line between Saginaw and Flint.
Hoyt-Mount Morris-Grand Blanc-Plymouth
Installed 1956, control machine in dispatcher's office in Saginaw
Completed 1957