The Gerken Companies

Gerken Paving, Inc. Gerken Materials, Inc.

Gerken Leasing Company, LTD Roadway Services, Inc. The Custar Stone Company Bluffton Paving, Inc. The Bluffton Stone Company

The West Millgrove Stone Company Hillsdale Sand & Gravel Glacial Sand & Stone Round Lake Sand & Gravel

Asphalt Production

Aggregate Materials

Trucking Milling/Grinding

Quality Control & Testing Traffic Control Decorative Asphalt Products

Sales The Custar Stone Company The West Millgrove Stone Company Hillsdale Sand & Gravel Glacial Sand & Gravel Round Lake Sand & Gravel The Bluffton Stone Company

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The Gerken Companies - Map Locations The Gerken Companies Contacts

Gerken Paving, Inc. Gerken Materials, Inc. Gerken Leasing Company, LTD

Ohio Contractors Association National Asphalt Pavement Association Flexible Pavements of Ohio Ohio Aggregates & Industrial Minerals Association Ohio Turnpike Commission Ohio Department of Transportation

Michigan Infrastructure Transportation Association Michigan Department of Transportation

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