Bridge Lead Counterweights
High-density lead counterweights engineered for swing bridges, bascule bridges, and lift bridge systems requiring precise balance and long-term structural performance.
Ultraray Metals supplies custom lead bridge counterweights for infrastructure projects across North America, supporting both new construction and bridge rehabilitation projects. Our counterweights are designed to deliver consistent mass, compact volume, and precise fit for demanding mechanical bridge systems.
Ultraray was a supply partner on the Johnson Street Bridge Replacement Project in Victoria, British Columbia, one of the world’s largest single-leaf bascule bridges. This project highlights our ability to deliver large-scale, engineered lead counterweight solutions for complex applications.
Key Features & Benefits
High-Density Material – lead provides maximum weight in minimal space, ideal for bridge balance systems
Custom Engineered Castings – poured into precision molds to ensure accurate fit within counterweight chambers
Multiple Material Forms Available – supplied as cast lead blocks, lead shot, lead bricks, or pig ingots depending on project needs
Encapsulated Finishes Available – epoxy coating or powder coating helps reduce lead exposure and supports environmental protection
Large-Scale Manufacturing Capacity – capable of producing counterweights up to 300,000 lbs for major infrastructure projects
Flexible Fabrication Options – can be cut from extrusions or fully custom cast to match engineering specifications
Foundry-Direct Supply – ensures quality control, cost efficiency, and reliable delivery timelines
Product Overview
Lead counterweights are critical components in bridge systems, providing the mass required to balance moving structures such as bascule, swing, and lift bridges. Due to its high density, lead allows engineers to achieve required weight loads in a more compact footprint compared to alternative materials.
Ultraray Metals manufactures bridge counterweights using a range of production methods, including custom casting and fabricated solutions. Each project is engineered to meet the structural, dimensional, and environmental requirements of the application.
We work closely with engineers, contractors, and infrastructure teams to deliver counterweights that integrate seamlessly into bridge systems while meeting project specifications.
Bridge Counterweight - Applications
Lead bridge counterweights are used in:
Bascule (drawbridge) systems
Swing bridges
Vertical lift bridges
Bridge rehabilitation projects
Infrastructure modernization projects
Manufacturing Options
Ultraray bridge weights can be supplied as:
Custom cast lead counterweights
Lead shot ballast systems
Lead brick assemblies
Pig lead ingots for modular weight systems
Engineering & Custom Solutions
We collaborate with project teams to:
Design counterweight systems
Match existing infrastructure dimensions
Optimize weight distribution and footprint
Meet environmental and handling requirements
From small-scale upgrades to large infrastructure builds, Ultraray provides engineered solutions tailored to your project.
