Millbach Fabrication LLC
Heavy-duty spillway grates and erosion control fabrication built to last
Why fabricators and engineers choose Millbach
We don't cut corners on storm water infrastructure. Every grate, screen, and accessory is built with the precision and material science that keeps waterways managed and erosion controlled.
Precision welding
Every joint is inspected and tested to handle hydrostatic pressure, debris impact, and decades of continuous water exposure without failure.
Material selection matters
We specify steel grades and coatings chosen for long-term submersion, corrosion resistance, and structural integrity in harsh drainage environments.
Engineered for responsibility
Fabrication that balances industrial toughness with honest stewardship—infrastructure that protects water quality and erosion control for decades, not seasons.
What we fabricate
Standard product lines built to specification, custom configurations engineered to your project. Browse the full catalog or reach out for a custom quote.
Spillway water grates
Precision-welded grating designed for controlled water flow, high debris loads, and submersion durability.
Trash racks & debris screens
Heavy-duty screens engineered to intercept and contain debris while maintaining water passage rates.
Storm sewer grates
Load-rated grating for storm drain inlet and outfall protection, built to code and tested for traffic and flow conditions.
Erosion control accessories
Support hardware, mounting brackets, and specialized fittings for complete storm water erosion management systems.
Who we serve
Millbach partners with the engineers, contractors, and municipal managers who take storm water infrastructure seriously.
Municipalities
City and county engineers specifying durable, code-compliant spillway and erosion control systems for long-term storm water management.
Civil contractors
GC and specialty contractors managing storm sewer, drainage, and erosion control projects where fabricated grating must perform under pressure.
Engineering firms
Consulting engineers designing storm water systems and seeking a fabrication partner who understands the technical and environmental demands.
Ready to spec your project?
Whether you're sourcing standard spillway grates or engineering a custom erosion control solution, we're ready to talk through your requirements and deliver fabrication built to last.
Get in touch for a quote