Bridge Systems

Custom-Engineered Bridge Systems (Composite Bridge Systems)

100% Custom design for each project

15-50% Rise/span of single-radius arches

Made from durable, corrosion-resistant fiberglass, basalt and carbon fiber composite
Lightweight for easy transportation, handling, and rapid installation
Ideal for commercial DOT, infrastructure, parks, trails, and remote access
Low long-term costs

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Applications Industry Advantages

Common Applications

Ideal to use when high-performance, corrosion-resistant infrastructure is desired

Commerical DOT Projects

Replacement of Aging Wooden or Steel Structures

Pedestrian Bridges for Parks and Nature Reserves

Utility Access Bridges In Remote Areas

Emergency or Temporary Crossings

Industry Challenges

Steel or other fibers have significant drawbacks in preparation, usage and longevity

Steel is expensive and slow to transport, and requires heavy duty cranes to install
Corrosion and decay in steel or wood bridges exposed to the elements
High maintenance costs and frequent repairs for traditional materials
Remote site access, requires lightweight, prefabricated solutions
Extended installation timelines due to heavy or complex materials
Environmental impact, with demand for longer-lasting, lower-footprint infrastructure

Material Advantages

Composite Bridge Systems overcome common issues, providing the perfect solution

Corrosion resistance – basalt composite will not rust, rot, or degrade in harsh environments
Lightweight strength – high strength-to-weight ratio enables easier transport and faster installation
Low maintenance – reduces lifecycle costs compared to wood or steel
UV and moisture resistant – withstands prolonged outdoor exposure without structural compromise
Non-conductive – ideal for applications near power infrastructure or sensitive equipment
Long service life – engineered for decades of performance without deterioration

Business Benefits

Basalt International can improve performance, project timelines, and costs

Lower total cost of ownership – reduced maintenance and replacement costs
Faster project timelines – rapid installation minimizes downtime and labor expenses
Increased project flexibility – custom engineering adapts to unique site conditions and requirements
Improved ROI – long-lasting, resilient infrastructure supports long-term planning and budgeting
Enhanced safety and reliability – consistent, high-performance material ensures structural integrity

Product Offerings

Composite Girders

Composite tub beams require no concrete fill.
Cast-in-place, precast transverse, and precast longitudinal deck options.
Depth and camber easily adjusted based on project requirements.

Composite Arches

Lightweight FRP arch tubes filled with concrete on site.
Can be handled with small, lightweight equipment.
Reduces concrete needed by about 4/5ths compared to typical concrete span bridges.
Highly customizable based on project description.

Composite Girders

Light weight and very strong – easy to transport, move, and install
Exceeds competitors' standards by utilizing an improved resin system that provides higher durability, UV protection, and better alkali resistance characteristics.
Corrosion resistant which aids in designing a structure with a much longer service life than steel or concrete decking.

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Explore More Revolutionary Products

Rebar

Basalt fiber reinforced polymer (FRP) Rebar is stronger, lighter, less expensive, and corrosion resistant. Get lower transportation costs, faster installation, and longer life.

Mesh

Chain-stitched basalt rovings form a grid or mesh that stands up better to chemicals, salt, and extreme temperatures. Build better roads, foundations, walls, or enclosures.

Macrofiber

Basalt composite macrofiber, formed into bars, outperforms steel reinforcement in concrete. Improve post-cracking strength and increase impact and fatigue resistance.

Microfiber

Basalt microfiber acts as a reinforcing agent in concrete, asphalt, plaster, putty, adhesive, and more. Minimize cracking and chipping while enhancing appearance.

Sea Wall

Designed with the U.S. Army Corps of Engineers, our basalt and glass FRP composite sheet piling is lighter, stronger, and less expensive. Eliminate rust, rot, and replacement.

Utility Poles

Basalt FRP composite utility poles are lighter, stronger, safer and less expensive than wood, steel, or other types of poles. Avoid chemicals, conduction, combustion, and rot.

Fabric

Basalt FRP composite utility poles are lighter, stronger, safer and less expensive than wood, steel, or other types of poles. Avoid chemicals, conduction, combustion, and rot.

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Trust the Testimonials

Stronger and Lighter, Naturally

"Composite materials like fiber-reinforced polymer (FRP) rebars offer higher tensile strength than Grade 60 steel at just a quarter of the weight—and unlike steel, they don’t corrode. This leads to longer service life for concrete structures. Among the various fibers used in FRP bars, basalt fiber stands out as a naturally sourced and sustainable alternative."

Alvaro Ruiz Emparanza

Ph.D., P.E.; Founder & CEO, Ecotori, LLC

Streamlined Our Process

"Using basalt rebar streamlined our tilt-up wall construction process, offering exceptional ease of use compared to steel rebar. Its lighter weight, easy handling, and resistance to corrosion have translated into substantial labor savings, allowing us to achieve efficiency without compromising on structural strength."

Brian Pratt

COO, McGarvey Development Company

Stronger And More Durable

"BFRP rebar is stronger and more durable than the minimum criteria set for GFRP bars and appears to be a viable alternative as a non-corrosive rebar option."

Steven Nolan

Office of Materials, Florida Department of Transportation

Faster, Stronger, and Longer Life

"The benefits of this bridge-building method are threefold. First, the arches are an instant framework. Second, you don’t need any steel reinforcing bars or rebar, because the arches are twice as strong as steel. And third, the tubes protect the concrete from water and elements, extending the life of the concrete."

Dr. Habib Dagher

Advanced Structures and Composites Center, U. of Maine

Same Building Method

"Whenever you introduce a new technology like this, contractors don’t always jump on it because there’s a fear that it’s going to be difficult to build. One of the beauties of [our composite bridge system] is that it’s built exactly the same way as you would build a steel girder or a concrete girder bridge."

Bill Davids

Chair of Civil and Environmental Department, University of Maine

Lighter Means Faster

"A lot of our time-saving activities once we got to the superstructure were absolutely governed by the weight of the girders themselves and the ability to do more things at once"

Brian Emmons

Project Manager, T Buck Construction

Expertise and Experience Drive Innovation

"It’s a combination of people who know how to build things, how to design things in the real world, plus our knowledge at the University in composite materials. Putting all that together really helped us develop the very unique secret sauce that I think will change how composites will be built in the future."

Dr. Habib Dagher

Advanced Structures and Composites Center, U. of Maine

Faster Than Expected and No Issues

"Even though we knew this would be erected really quickly out in the field, the speed surprised us. It didn’t take very long for them to get their tubes in place, to get all the decking in place and start the backfill process. When you walk into a brand-new product like this, there is a certain level of risk. But there were just no issues at all with the construction."

Mark Gaines

Washington State DOT Bridge & Structures Engineer

Read Our Case Studies