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Aerial view of paving operations


The Purchasing Department manages all purchasing for the Department of Roads.

Department of Roads truck.

The Purchasing Department manages all purchases for the Department of Roads. The department is responsible for all general purchases, from the receipt of the order, to the delivery of the item. The Purchasing Department works to purchase the best quality product at the most competitive rate.

Macomb County is a member of the Michigan Inter-governmental Trade Network (MITN) and proposals are posted on MITN. To register as a vendor, visit the MITN website and complete the online vendor registration form. The website provides detailed instructions on how to fill out the form and offers vendor support.

All current bids for purchasing and services, including final bid tabulations, are posted on MITN.

Below is additional information related to purchasing and vendor requirements.

Tax Exemption Certificate

Minimum Insurance Requirements

Non Collusion Affidavit

  • $500 - $1,000: Informal quote
  • $1,000 - $5,000: Formal quote 
  • $5,000 or more: Bid

For additional information, contact the Purchasing Department at 586-791-3373.

Jeff Derowski

Assistant Purchasing Manager


Sara Lozen

Stock and Inventory Foreman


Les Durr



Mary Rogers

Department Secretary

Phone: 586-791-3373

Fax: 586-791-5860