Bridge Weights
7" x 7" x 8" stock lead bridge weights (~150 lb) and custom-poured counterweights for bascule and lift bridges.

Overview
7" x 7" x 8" stock lead bridge weights (~150 lb) and custom-poured counterweights for bascule and lift bridges.
Find the Right Steel Ballast Weights for Your Project As the leading U.S. manufacturer of lead-based products, we are proud of our reputation for excellence, innovation, and customer care. Due to our size, we have been able to invest heavily in advanced machinery which gives excellent results on a wide-range of lead items. This capacity also ensures that we can create high volumes of the lead bridge components in a short time period. If you have a rush job, and need a bridge weight in a hurry, we can help. Mayco Stock Lead Bridge Weights are 7” x 7” x 8” with a piece of rebar in the cut out for easy maneuvering. Each Lead Bridge Weight weighs approximately 150 lbs. each. Lead is commonly used as bridge ballast for its density. We custom pour our bridge weights (seen below), giving them a precise fit. We also offer lead encapsulation, such as epoxy painting or powder coating, which reduces lead exposure to your workers and the environment. Mayco also offers concrete weights upon request. Below, you can see an 81 lb 10? x 10? x 10? cast concrete ballast block, complete with a handle for easy lifting.
Our Products Were Used on the Charles Berry Bridge and Many Other Bridge Schemes We were privileged to help in the creation of the Charles Berry Bascule Bridge in Loraine, Ohio, as well as having played a part in the Gilmerton Bridge replacement project, and many others. To find out how we could work with you to help you achieve successful completion of your bridge project, or for further information on our other services, call us at (800) 749-6061.
Typical applications
Where this product is engineered to perform.
Bascule, vertical lift, and swing bridge balance machinery
Precision counterweights designed to bridge engineering specs
Massive space-saving lead counterweight blocks
High-density weight replacement for steel or concrete
Industries served
Product specifications
| Material | Cast Lead / Antimonial Lead (up to 6% Sb) |
|---|---|
| Density | Approx. 700 lbs per cubic foot |
| Forms Available | Cast blocks, bricks, pigs, custom hot pours |
| Custom Capabilities | Multi-ton pours, on-site casting, machining to spec |
Specifications subject to custom engineering and alloy options. Contact Mayco engineering for specific sizes, tolerances, and custom certifications.
Need a custom size, alloy, or configuration?
Mayco provides engineering support and design consultation — from small radiation shielding jobs to large ballast projects. Our team can help specify the right product, dimensions, and tolerances for your application.
Every Mayco product is manufactured in-house across our U.S. plants and backed by our ISO 9001 quality system.
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