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Our Work

Nelson Wastewater Treatment Facility Improvement

Project Groot "America's Heartland Packing"

Ameren Conway Road Heavy Underground

Bayer Chesterfield Campus Utility Upgrade

Castle Hickory Solar

Tomahawk Creek Wastewater Treatment Facility

Saint Louis University Campus Utilities Upgrade

Tilden Solar

Bass Pro Shop Parking Lot

Residence Inn by Marriott

BJC Healthcare Campus Renewal

Double Black Diamond Solar

Want to do business with us?

DIG INTO YOUR CAREER AT CASTLE

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Earthwork

Underground Utilities & Infrastructure

Design-Build

Expertise

Our Work

Nelson Wastewater Treatment Facility Improvement

Project Groot "America's Heartland Packing"

Ameren Conway Road Heavy Underground

Bayer Chesterfield Campus Utility Upgrade

Castle Hickory Solar

Tomahawk Creek Wastewater Treatment Facility

Saint Louis University Campus Utilities Upgrade

Tilden Solar

Bass Pro Shop Parking Lot

Residence Inn by Marriott

BJC Healthcare Campus Renewal

Double Black Diamond Solar

Want to do business with us?

DIG INTO YOUR CAREER AT CASTLE

Sign Up for Castle Contracting Insights