Komatsu Mining Opens Office Building

Hunzinger Construction is leading the construction of the project. Eppstein Uhen Architects and engineering firm GRAEF are designing the campus.


Komatsu Mining is putting the finishing touches on its new facility, South Harbor Campus, in Milwaukee’s Harbor District.

The development, billed as the largest urban manufacturing facility under development in the United States, includes a 176,000-square-foot office building overlooking the inner harbor and a 430,000-square-foot factory. It will produce mining shovels, to be shipped in pieces, that weigh over three million pounds and can lift 120 tons at a time.

Those wishing to see the final product can now head to the site, located at the east end of E. Greenfield Ave. A large yellow shovel, the kind to be made at the plant, is set up in front of the office building. It looms over a truck that the company makes at a different facility.The mining company is an arm of the multi-national conglomerate Komatsu. The Tokyo-based company boasts over 59,000 employees in 142 countries, but P&H has always called Milwaukee home. P&H, later known as Harnischfeger, was founded more than 137 years ago in Walker’s Point, less than a mile north of where the new campus is rising.

The design submission approved by the city in 2018 envisions the possibility of substantial expansion. A 220,000-square-foot building, used for manufacturing, could be built to the south of the first manufacturing building. The original building used for manufacturing could also be directly expanded to the west with a 110,000-square-foot addition and to the east with a 51,660-square-foot addition.

A 46,200-square-foot addition to the south end of the office building is also envisioned, as well as a 27,600-square-foot penthouse. The parking structure could also be expanded.

Urban Milwaukee,