From the 1940s through the sixties and seventies, AT&T built thousands of Long Line towers as part of its transcontinental microwave communications network. It’s been decades since they were used for their original purpose, but one still stands near the northern Indiana city of Plymouth.
The tower in Plymouth appears to have been built in 19671. Rising 188 feet2, it relayed a signal twenty miles southwest from Winamac to another tower twenty-three miles northeast in Mishawaka3. Unfortunately, the tower no longer features its horn antennae.
After the Long Lines program ended, AT&T deaccessioned the tower in 20024. Today, it’s operated by Fourway Computer Products, an internet provider5.
Sources Cited
1 Parcel 503217000021000018 (2024). Office of the Assessor. Marshall County [Plymouth]. Web. Retrieved May 26, 2024.
2 Long Lines Map and Information (n.d.). Web. Map. Retrieved May 26, 2024.
3 Transmitter Characteristics (n.d.). Antennasearch. Web. Retrieved May 26, 2024.
4 (See footnote 1).
5 (See footnote 2).
