WINNER - FLATWORK INDUSTRIAL

4-Apr-16-2025-06-25-30-7496-PM

GM LAKE ORION EV ASSEMBLY AND AUTOMATED STORAGE RETRIEVAL SYSTEM (ASRS)


Location: 4555 Giddings, Orion Township, MI
Concrete Contractor: Devon Industrial Group
Concrete Supplier: Hercules Materials Holdings
Prime Contractor: Walbridge
Project Owner: General Motors

The GM Lake Orion facility, otherwise known as Lake Orion Assembly, originally opened in 1983 and is now over 4.3 million square feet in size.

In 2019, GM announced an additional investment of $4 billion and an addition of 4,000 workers to build the new Chevrolet Silverado EV and the GMC Sierra EV. The over 2.4 million square-foot expansion included a Battery Electric Vehicle (BEV) assembly plant, Body Shop (East & West) expansion, General Assembly (GA) Building, Battery Assembly (BA) Building, Automated Storage and Retrieval Systems, conveyor and utility trestle, compressed air building, switch house, waste water treatment plant, and weld water facility.

Part of this project also included the construction of two Automated Storage and Retrieval Systems (ASRS), to further enhance the facility's ability to produce electric vehicles. The Battery and General Assembly ASRS systems will optimize parts storage and retrieval, improving efficiency on the assembly line.

Devon Industrial Group (DIG) self-performed the concrete services for the foundations and slabs. DIG placed over 130,000 cubic yards of concrete for the two-story battery facility, three-story paint shop, body shop, and the ASRS warehouses. Hercules Concrete used an on-site portable batch plant, Kronos Concrete, to meet the aggressive demands of the project.

The ASRS’s comprised 100,000 square feet, with minimum requirement floor flatness (FF) of 50 and floor levelness (FL) of 30. Each ASRS area (BA and GA) had to be divided into 10 placements each, with armor edge at each construction joint location, and had to be placed in a checkerboard fashion to avoid adjacent placements. The ASRS areas were reinforced with both rebar and 51 lb/cyd of steel fibers along with an additional pound of synthetic fibers per cubic yard.