SPT is the world's leading shoulder rumble strip contractor. We provide both general contracting and subcontracting services on highway construction projects in every state.

We also work with government agencies, highway contractors and consultants around the world in the promotion and development of highway shoulder rumble strip programs.

SPT designs and manufactures its own line of NoisePrint rumble strip mills, capable of cutting up to 30 miles of asphalt rumble strips in a single eight-hour shift.

SPT currently operates from four regional locations in Pennsylvania, Tennessee, Illinois, Kansas and Colorado. Our facilities include more than 50,000 square feet of of office and workshop space on more than 30 acres of property.