The yard is owned by BNSF Railway, and was built by predecessor Great Northern Railway as Interbay Yard.
As part of a modernization in the late 1960s, which included a 16-track hump, which is no longer in service.
It was renamed after former GN vice president Thomas Balmer.
[1] The nearby engine servicing area is still known as Interbay.
The yard is over 80 acres (320,000 m2) in size and has 41 parallel tracks for switching cars.