From the swamps of Louisiana to the shorelines of New York and Florida, Supreme Integrated Technology (SIT) is helping reshape the future of civil infrastructure through innovative civil solutions. Known for our innovation in movable bridges, floodgates, valve automation, and control systems, we’re more than just a manufacturer — we’re a project partner dedicated to engineering smarter, safer, and more reliable infrastructure across the United States.
At SIT, we prioritize civil solutions that integrate sustainability and technology.
Our civil solutions not only enhance infrastructure but also focus on environmental sustainability.
Whether you’re upgrading a historic lift bridge or building a new flood protection system, SIT delivers turnkey civil solutions that endure environmental extremes and meet the evolving needs of the communities they serve.
These innovative civil solutions are designed to meet the future needs of urban development.
Our extensive portfolio of civil solutions showcases our commitment to quality and innovation.
Innovative Civil Solutions for Tomorrow
With decades of experience, SIT has earned a reputation for engineering excellence. We specialize in designing, manufacturing, and integrating complex systems such as:
- Movable bridge systems
- Locks and dam machinery
- Valve automation
- Electrical control systems
What sets us apart? It’s our collaborative approach. We work closely with the U.S. Army Corps of Engineers, state departments of transportation, and private engineering firms to ensure each system is precisely tailored to its environment and function — and completed on time, with the highest standards of quality.
With each project, our civil solutions are tailored to address specific challenges and enhance performance.
Featured Projects: Innovation in Action
Through collaboration, we develop civil solutions that are robust and adaptable to changing requirements.
At SIT, we don’t just deliver equipment. We deliver solutions that protect communities, improve connectivity, and extend the life of critical infrastructure. Our featured civil projects showcase our ability to merge new technologies with legacy structures — while addressing both today’s challenges and tomorrow’s opportunities.
✅ Grand Bayou Floodgate – Louisiana
Part of the region’s hurricane protection system, this 147-foot steel barge and floodwall project highlights our strength in marine fabrication, automation, and field integration. Designed to operate reliably in some of the toughest environmental conditions, it’s a prime example of SIT’s commitment to long-term infrastructure resilience.
✅ CSX Tail Race Bridge – South Carolina
This historic lift bridge restoration was more than an upgrade — it was a revitalization. SIT replaced outdated systems with modern controls and high-precision mechanics, breathing new life into an aging structure while preserving its historic value.
✅ Pontoon Bridge Modernization – Louisiana
By integrating advanced hydraulic winch systems, we simplified operations and improved safety for Louisiana’s iconic pontoon bridges. These upgrades ensure consistent performance and reduced maintenance demands for years to come.
From design to implementation, we provide comprehensive civil solutions to our partners.
Smarter Systems, Stronger Partnerships
SIT isn’t just a vendor — we’re a trusted partner, invested in your project’s long-term success. Our capabilities go far beyond fabrication. We offer:
Our civil solutions extend nationwide, bringing local insights to global challenges.
✔️ End-to-end project management and system integration
✔️ Custom control systems designed in-house
✔️ Nationwide field service to keep your systems operating at peak performance
✔️ On-site commissioning and testing to ensure full system readiness
No matter the complexity, our team works side-by-side with clients to deliver integrated solutions — from concept to completion.
Nationwide Reach with a Local Touch
SIT has proudly led civil engineering projects in Louisiana, Florida, New York, Ohio, Wisconsin, and Washington, and continues to grow its presence throughout the country.
Whether you need a coastal bridge in Florida, a lock system in Ohio, or a flood mitigation solution in the Gulf Coast, we bring the same dedication to quality, reliability, and client service to every job site.
And we don’t stop at installation. Our lifecycle support ensures your equipment continues performing reliably for decades — with service teams ready to respond wherever you are.
Let’s Build What’s Next — Together
SIT’s civil infrastructure capabilities reflect a commitment to engineering smarter solutions that make a lasting impact. By blending proven experience with the latest hydraulic, electro-mechanical, and automation technologies, we help cities, states, and federal agencies build infrastructure that’s as intelligent as it is reliable.
Planning your next civil project?
Let’s talk. Our civil systems experts are ready to help you bring your vision to life — and we’d love to learn more about your upcoming needs.
