For over 60 years, Clark Bros. Inc. (CBI) has been considered the leader in heavy civil contracting throughout the United States. As a well-established and highly regarded heavy civil construction company, CBI employs a large staff of experienced managers and operators who maintain the highest quality of workmanship and possess a vast knowledge of the industry. Clark Bros. Inc. provides myriad services including mass and fine grading, excavation, structural concrete, paving, drilling, mechanical, water and wastewater treatment systems, habitat restoration, erosion control and much more. Licensed in 19 states and growing, CBI is confident in tackling the most complex and challenging civil projects.