Modular Panel Truss

Liberty Bridge

A prefabricated panel-and-module system that follows the constant-depth Voyager (Pratt) form: containerized, fast to build, and ideal for permanent or emergency use.
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Overview

The U.S. Bridge Liberty

The U.S. Bridge Liberty is made from prefabricated panels assembled into modules. It follows the constant-depth form of the Voyager (Pratt truss) but is engineered to be containerized and easy to construct. It is preferred for permanent or emergency installations and for owners maintaining large bridge inventories.
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At a Glance

Liberty Specifications

These are typical figures. Every U.S. Bridge is custom-engineered and PE-stamped to your project span, width, loading and site. Hover or tap a card for the detail behind each number.
Typical Span
40-200 ft
Bridge Type
Modular panel truss
Truss geometry engineered for this model.
Roadway Width
Custom
Single to multi-lane; curb or rail options.
Design Loading
AASHTO HL-93 / HS-20
PE-stamped to your jurisdiction.
Connections
All-bolted, CNC-drilled
No field welding required on site.
Finish
Weathering or galvanized
Optional shop-applied paint systems.
Why U.S. Bridge

Engineered to Perform, Built to Last

Every Liberty is fabricated to the same standards that make U.S. Bridge a trusted partner for DOTs, counties and private developers nationwide.

AISC-Certified Fabrication

Built by an AISC-certified Advanced Steel Bridge Fabricator with Fracture Critical and Sophisticated Paint System endorsements.

All-Bolted, CNC-Drilled Connections

Computer Numerically Controlled drilling delivers precise, all-bolted field connections, with no field welding required on site.

Prefabricated and Shipped Ready

Fabricated in our Cambridge, Ohio facility and shipped as ready-to-assemble components for fast, predictable installation.

Engineered for Longevity

Weathering steel or hot-dip galvanized options resist corrosion and minimize maintenance across a 75+ year design life.

Custom-Engineered to Your Site

Span, width, skew, camber and loading are tailored to your project and stamped by a licensed Professional Engineer.

Faster Than Cast-in-Place

Prefabrication compresses on-site schedules, reduces traffic disruption and lowers total installed cost.

Made in the USA

Fabricated in Cambridge, Ohio from American steel, supporting domestic jobs and helping satisfy Buy America and Buy American requirements.

Variable-Span Versatility

Many U.S. Bridge trusses reconfigure into multiple shorter spans using the originally supplied members, protecting your investment as project needs change.
Applications

Where the Liberty Excels

The Liberty is a strong fit for projects that call for permanent and rapid or emergency installations.
  • Emergency and disaster-response crossings
  • Military and temporary access
  • Permanent rural roadways
  • Large-inventory bridge programs
  • Detour and staging bridges
  • Remote or hard-to-access sites
Interactive Tool

Build Your Liberty Bridge

Configure span, width, deck, finish and setting on a live 3D Cortez model and get an instant budgetary estimate. This builder is locked to the Cortez design, with no model switching.
Liberty Bridge Builder
Live 3D Configurator
Pre-Engineered Clear-Span Bridges

Configure your span.
See it in 3D.

Pick a model, adjust span, width, load rating, decking, and finish. Watch the structure build in front of you, then request a budgetary range and weeks-to-traffic for your project.

Bridge Model
Currently Configuring
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Clear span
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Width
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Load
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Estimates are budgetary. More U.S. Bridge designs are being added to the builder.
Gallery

Liberty Bridges in the Field

Liberty Puente Epic
U.S. Bridge Liberty
U.S. Bridge Liberty
U.S. Bridge Liberty
Questions & Answers

Liberty Bridge FAQ

Design & Engineering

The Liberty is a modular panel truss derived from the constant-depth Pratt form, engineered for permanent and rapid or emergency installations.

The Liberty is fabricated by U.S. Bridge in Cambridge, Ohio as an AISC-certified Advanced Steel Bridge Fabricator. It uses all-bolted, CNC-drilled connections, so no field welding is required during installation.
Applications & Use

The Liberty is best suited for permanent and rapid or emergency installations. Common applications include emergency and disaster-response crossings, military and temporary access, permanent rural roadways.

The Liberty is installed for projects such as emergency and disaster-response crossings, military and temporary access, permanent rural roadways, and other crossings that match its span range and loading.
Specifications & Delivery

A typical Liberty covers about 40–200 ft. Every bridge is custom-engineered to the site, so the exact span, width, skew and loading are confirmed during design.

Yes. The Liberty is designed to current AASHTO standards (HL-93 and HS-20) and stamped by a licensed Professional Engineer.

The Liberty is offered in weathering steel or hot-dip galvanized steel, with optional shop-applied paint systems for added durability and custom color.

The Liberty is prefabricated in Cambridge, Ohio and shipped as ready-to-assemble, all-bolted components, which keeps field installation fast and predictable.

Ready to build your Liberty bridge?

Configure your span on the interactive builder, request full specifications, or connect with your regional U.S. Bridge representative to get started.
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