04/29/2026
A big thank you to MAA member Stoneco Michigan, along with industry partners Michigan Paving & Materials Company and Cadillac Asphalt LLC, for showcasing the journey of aggregate materials from the quarry to finished asphalt pavement.
The tour provided the Director of the Michigan Department of Transportation (MDOT) and MDOT’s COO with a firsthand look at the direct connection between the Ottawa Lake Quarry and the Cadillac Asphalt Dix HMA Plant in Detroit, highlighting how locally sourced aggregates play a critical role in building and maintaining Michigan’s transportation infrastructure.
The visit also highlighted the asphalt emulsion production process at the Michigan Paving & Materials Monroe Oil Terminal. Seeing the full process firsthand, from raw aggregate production to the final pavement placed on MDOT highways, reinforces the essential role our industry plays in supporting safe, durable, and reliable infrastructure across Michigan.