RIVERDALE QUARRY
ABOUT
Riverdale Quarry, located in Riverdale, Morris County, NJ, supplies high-quality crushed and broken granite suitable for a wide range of construction and infrastructure projects. Strategically positioned near I-78 and I-287, this surface quarry, operated by Riverdale Quarry LLC under Roger & Gary Mahan, ensures efficient access to major transportation routes and regional markets. With 57 employees, Riverdale Quarry delivers consistent material supply and reliable service.
MATERIALS PRODUCED
COMPANY INFORMATION
Operator
Riverdale Quarry LLC
Parent Company
Roger Mahan; Gary Mahan
Company Type
Other
DIRECTIONS
101
CONTACT
Contact information not available for unclaimed listings.
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Data Source
Mine Safety and Health Administration (MSHA)
Last updated: 1/30/2026
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