Business Details
50+ Years
experience
Trusted Heavy Civil Construction Services in Cynthiana, IN
Founded in 1962, Blankenberger Bros has evolved from a small farm work provider into a leading heavy civil construction contractor. We specialize in complex earthwork, grading, bridge foundations, and utility projects across commercial, industrial, residential, and public works sectors. Transitioning to 100% employee ownership in 2020 strengthened our commitment to quality and community. Our team of 150 professionals utilizes over 200 owned machines and partners with local unions to deliver projects efficiently. Safety remains our top priority, with weekly training sessions and industry certifications through ISNetworld and Avetta.We maintain active roles in the Evansville Regional Economic Partnership and Better Business Bureau while supporting local community initiatives. Licensed in Indiana, Illinois, and Kentucky, we hold specialized permits for municipal construction projects. Our Equal Opportunity Employer status reflects our dedication to workforce diversity and inclusion. With decades of experience in design/build and traditional construction methods, we serve clients throughout southwestern Indiana, western Kentucky, and southern Illinois.
Services
Earthwork Grading
Bridge Construction
Storm Sewer Systems
Mine Development
Solar Energy Projects
Concrete Foundations
Roadway Construction
Utility Installation
Site Preparation
Demolition Services
Details
- Year established: 1962
Highlights and features
- 60+ years of heavy civil construction experience
- 100% employee-owned company structure
- Comprehensive safety training programs
- Partnerships with local labor unions
- Fleet of 200+ owned construction machines
Associations and certifications
- ISNetworld
- Avetta
Services
Earthwork Grading
Our earthwork grading services utilize GPS technology and 200+ machines for precision site preparation. We handle mass excavation, soil stabilization, and erosion control for commercial and infrastructure projects. With decades of experience in complex terrain, we ensure proper drainage and foundation stability for roads, buildings, and utilities.
Bridge Construction
Specializing in bridge and foundation construction, we deliver single- and multi-span bridges with sheet pile walls and concrete foundations. Our expertise includes cofferdams and H-pile foundations for transportation infrastructure. We've completed projects like the Baseline Road Bridge and US 41 Bridge over Pigeon Creek with exacting safety standards.
Storm Sewer Systems
We design and install storm, sanitary, and water utility systems for municipal and commercial clients. Our capabilities include deep sewer installation, pipe slip lining, and pump station construction. Recent projects like the Southeast-Brookside Combined Sewer Separation demonstrate our expertise in modernizing aging infrastructure across three states.
Mine Development
With specialized equipment and safety-certified crews, we handle mine site development and coal loadout facilities. Our services include earthmoving, site preparation, and infrastructure development for mining operations. Completed projects include the Oaktown Mine Site Development and power generating station ash pond closures.
Solar Energy Projects
We construct solar energy facilities with site preparation, grading, and foundation work for photovoltaic installations. Our team completed the Troy Solar Field and supports renewable energy growth through specialized earthwork and infrastructure services while maintaining environmental compliance standards.
Questions
What construction services do you specialize in?
We specialize in earthwork grading, bridge construction, storm sewer systems, mine development, and solar energy projects across Indiana, Kentucky, and Illinois.
Are you an employee-owned company?
Yes, we transitioned to 100% employee ownership in 2020 through an ESOP structure while maintaining our family business values.
What safety certifications do you hold?
We maintain active memberships with ISNetworld and Avetta safety certification programs and conduct regular safety training for all employees.
Which geographic areas do you serve?
We primarily serve southwestern Indiana, western Kentucky, and southern Illinois with equipment and crews strategically located across these regions.
What union partnerships do you maintain?
We work with local labor unions including Operators 181, Laborers 561, Carpenters 224, and Teamsters 215 depending on project location requirements.
What equipment do you own?
Our fleet includes over 200 construction machines covering excavation, grading, and heavy lifting needs for projects of all sizes.
