MICHIGAN'S INTERLOCKINGS

PERE MARQUETTE/CHESAPEAKE & OHIO

Chicago Subdivision

Now owned by CSX.

CTC was installed 1945-1948, enabling the elimination of many towers.


PO/PORTER
Tower listed with New York Central

ROUND HOUSE (Michigan City)
Mechanical interlocking installed 1904
Closed 1946, replaced with CTC installation at New Buffalo station
Replaced with automatic interlocking 1956

Former crossing with Monon Michigan City Branch, abandoned 1980.

Click for Google Map of Michigan City

ST. JOSEPH
Electric interlocking installed 1912

Bridge over St. Joseph River.

HARTFORD
Mechanical interlocking installed 1887
Closed by 1940's

Former crossing, later a junction, with former Pere Marquette Paw Paw Subdivision.

GRAND JUNCTION
Mechanical interlocking installed 1893
Closed 1948, replaced with CTC installation at Waverly Yard

Former crossing with New York Central South Haven Branch, abandoned 1973.

HOLLAND
Electric interlocking installed 1929, controlled from uncertain location
Closed 1945, replaced with CTC installation at Waverly Yard

Little is known about this interlocking, other than it may have handled junction with line between Allegan and Muskegon.

LAMAR
Mechanical interlocking installed 1895
Closed around 1950's

Former crossing with New York Central Kalamazoo Branch, not included in Conrail 1976.

Click for Google Map of Grand Rapids

PLEASANT STREET (Grand Rapids)
Tower listed with main line


EARLY CTC INSTALLATIONS

Grandville-Hudsonville
Installed 1939, control machine at Lamar tower
Replaced 1945 with new control machine at Waverly Yard (Holland)

New Buffalo-Porter
Installed 1940, control machine at Round House tower
Replaced 1946 with new control machine in New Buffalo

Grandville-East Saugatuck-St. Joseph
Installed 1945, control machine at Waverly Yard (Holland)
Control machine expanded 1948
Relocated, control machine in dispatcher's office in Grand Rapids

St. Joseph-Porter
Installed 1946, control machine at New Buffalo station