Roads & Highways Sector Guide

ROADS AND HIGHWAYS A New Horizon of Infrastructure Possibilities

Custom Reflective Precast Noise Barrier

Building Quieter, Safer Transportation Networks. Modern transportation infrastructure demands more than durability. It requires solutions that reduce noise, improve safety, withstand evolving environmental pressures, and integrate seamlessly into the communities they serve. EKHO delivers engineered infrastructure systems for highways, bridges, interchanges, and urban corridors across North America.

The EKHO Advantage With thousands of transportation projects delivered across North America, EKHO provides the proven expertise and integrated capabilities needed to support even the most complex infrastructure programs. Our MTO and DOT approved solutions include MASH crash-tested safety systems, supported by North American manufacturing and engineering expertise from initial concept through execution. With customized design, sustainable product innovation, and a focus on long-term performance, EKHO helps consultants, engineers, and contractors deliver safer, more resilient transportation networks.

Custom Absorptive Precast Noise Barrier Transparent Noise Barrier

Transparent Noise Barrier

Bridges We are the necessary ground support to interchange projects, and we enhance bridges with structure-mounted wall solutions that are lighter, increase visibility, and prioritize safety. Roadways We support roadway construction and traffic control with engineered retaining, noise wall and precast solutions - like calming curbs, for safer communities. Highways We support highway infrastructure with structure-mounted noise wall systems designed to reduce weight, improve sightlines, and enhance safety on high-speed corridors.

TABLE OF CONTENTS

1 OUR SOLUTIONS Noise Protection ..... 15 Safety Systems ..... 25 Retaining & Structural Solutions ..... 33 2 APPLICATIONS Elevated Structures & Pedestrian Railings ..... 41 Roadways ..... 43 Highways ..... 45

As traffic volumes continue to grow and infrastructure ages, transportation corridors face increasing demands for safety, resiliency and long-term performance. Climate exposure, heavier traffic loads, tighter urban footprints and stricter standards are reshaping how highways and roadways are designed and maintained. At the same time, communities expect quieter, safer, and more visually integrated transportation systems. Custom Absorptive Precast Noise Barrier Reflective Acoustic Fence 9 EKHO Infrastructure Solutions

EKHO helps transportation agencies, engineers and contractors solve these evolving challenges through engineered infrastructure systems designed for real world performance. Transportation infrastructure should not only move people efficiently, but it should improve the environment and communities surrounding it. Reflective Precast Noise Barrier EKHO Infrastructure Solutions 10

Proven Infrastructure Expertise Across North America Built on decades of experience and thousands of projects delivered across transportation sectors, EKHO provides integrated infrastructure solutions engineered for performance, safety, and longevity. 11 EKHO Infrastructure Solutions SmogStop Air Quality Noise Barrier Built on Proven Results

MTO / DOT Approved Solutions trusted by transportation authorities across Canada and the United States. MASH Crash-Tested Certified roadside safety systems designed for high-speed transportation environments. NRC & STC Rated Acoustic systems engineered to deliver measurable noise reduction performance. Engineered for Durability Designed to withstand heavy traffic, extreme weather, and demanding environmental conditions. Designed for Constructability Faster installation methods and modular systems that help reduce project disruptions and accelerate timelines. EKHO Infrastructure Solutions 12

Reflective Precast Noise Barrier

OUR SOLUTIONS

Absorptive Precast Noise Barrier 15 EKHO Infrastructure Solutions | Noise Protection

Reducing Traffic Noise. Enhancing Community Livability. Transportation noise remains one of the most significant environmental concerns associated with growing roadway infrastructure. Effective barrier systems can significantly reduce roadway noise exposure for nearby communities and urban developments. NOISE PROTECTION OUR SOLUTIONS EKHO Infrastructure Solutions | Noise Protection 16

Featured Solutions EKHO’s engineered noise protection systems are designed to reduce sound pollution while improving the visual integration of transportation infrastructure. • Transparent Noise Barriers • Absorptive Precast Barriers • Reflective Precast Systems • Acoustic Facings • Aluminum Noise Barriers • Acoustic Fence Systems • PVC Barriers • SmogStop Air Quality Barriers • Wood Barriers • RMP Noise Barriers • SoundZero Noise Protection Walls Reflective Acoustic Fence 17 EKHO Infrastructure Solutions | Noise Protection

EKHO Infrastructure Solutions | Noise Protection 18 TL-4 Transparent Noise Barrier

Acoustic Fence EKHO’s International Fence is a precast concrete acoustic fence system that combines privacy, security, and noise reduction in a durable, low-maintenance solution. The system helps reduce traffic noise while providing a strong, long-lasting barrier between busy transportation corridors and surrounding communities. Its concrete construction provides long-term performance with resistance to weathering, deterioration, and environmental conditions. Absorptive Precast Barriers Durisol is the proprietary name of our durable, lightweight precast concrete material. Composed of natural and recycled material, it is a more sustainable alternative to standard concrete. Made of chemically neutralized and mineralized organic softwood shavings which are specially processed to an acoustically engineered size. When bonded together under pressure with Portland cement, an absorptive panel is born. Its durable construction is engineered to withstand harsh environmental conditions while maintaining consistent acoustic performance over decades of service. Designed for flexibility, the absorptive barrier system can be customized with a wide variety of textures, patterns, colors, and integrated features to suit project- specific requirements. Manufactured in NPCA-certified facilities across Canada and the United States, the system supports wall heights of up to 43 feet and can incorporate transparent panels or retaining wall components for blended infrastructure solutions. 19 EKHO Infrastructure Solutions | Noise Protection

Absorptive Precast Noise Barrier Reflective Acoustic Fence EKHO Infrastructure Solutions | Noise Protection 20 Hybrid Absorptive Precast & Transparent Noise Barrier

PVC Noise Barriers The PVC Noise Barrier System uses customizable PVC panels that provide strong acoustic performance while being significantly lighter than traditional barrier materials, making them ideal for applications where weight restrictions are a concern. With both absorptive and reflective panel options, the system can be tailored to meet specific noise reduction requirements while offering weather resistance, UV protection, and a service life of up to 30 years. PVC Noise Barrier PVC Noise Barrier 21 EKHO Infrastructure Solutions | Noise Protection

Aluminum Noise Barriers Built with corrosion-resistant aluminum components, the system provides long-term durability while reducing traffic noise and minimizing structural load requirements compared to heavier barrier materials. Its modular design allows for efficient installation and customization, with options for different heights, colours, and acoustic configurations to meet project-specific needs. Aluminum Noise Barrier EKHO Infrastructure Solutions | Noise Protection 22

Sustainable EKHO’s sustainable solutions help create greener infrastructure through innovative materials and environmentally responsible designs. Products like Wood Barriers, RMP Recycled Plastic Noise Barriers, Eco-Flex, and SmogStop Air Quality Barriers reduce environmental impact by incorporating renewable and recycled materials, diverting waste, lowering emissions, and improving air quality along transportation corridors. Recycled Plastic Noise Barrier 23 EKHO Infrastructure Solutions | Noise Protection • Wood Barriers • Recycled Plastic Noise Barrier • SmogStop Air Quality Barriers • Eco-Flex

Transparent Noise Barriers Designed with highly impact- resistant transparent panels, the system effectively reduces traffic noise while keeping open sightlines for drivers, pedestrians, and nearby communities. The transparent design is ideal for scenic areas and urban environments. Made from specialized acrylic materials, EKHO’s Transparent Noise Barriers are 11 times more break- resistant than glass while weighing approximately half the weight of tempered glass. Transparent Noise Barrier EKHO Infrastructure Solutions | Noise Protection 24 SoundZero Noise Protection Wall SoundZero Noise Protection Developed to meet the structural and acoustic demands of bridge-mounted and elevated transportation infrastructure, the SoundZero Noise Protection Wall System provides a lightweight, high-performance alternative to conventional noise barriers.

MASH Crash-Tested Safety Systems Roadside safety infrastructure must perform when it matters most. EKHO’s MASH crash-tested systems are engineered to protect motorists, infrastructure, and surrounding communities while maintaining constructability and design flexibility. SAFETY SYSTEMS MASH TL-5 Precast Foundationless Noise Barrier 25 EKHO Infrastructure Solutions | Safety Systems

OUR SOLUTIONS EKHO Infrastructure Solutions | Safety Systems 26

Available Systems MASH Crash-tested roadside safety systems engineered to increase occupant safety. • MASH TL-3 Precast Ground Mounted Noise Barrier • MASH TL-4 Aluminum Structure Mounted Noise Barrier • MASH TL-4 Transparent Noise Barrier System • MASH TL-4 Precast Ground Mounted Barrier • MASH TL-5 Foundationless Noise Barrier • Wind Barriers & Median Barrier Extensions (MBE) 27 EKHO Infrastructure Solutions | Safety Systems MASH TL-4 Transparent Noise Barrier

EKHO Infrastructure Solutions | Safety Systems 28 Wind Barrier

MASH TL-3 Precast A DOT and MTO approved crash-tested system that combines a reinforced precast concrete traffic barrier with a noise wall to improve both roadway safety and noise mitigation. Designed for high-speed highways, ramps, and road expansion projects. MASH TL-5 Precast The MASH TL-5 Precast Foundationless Noise Barrier is North America’s first MASH TL-5 integrated noise barrier and vehicle restraint system, combining a durable precast concrete safety barrier with double-sided absorptive panels for maximum noise reduction. Designed for space-limited highway and roadway applications. Precast Aluminum Transparent 29 EKHO Infrastructure Solutions | Safety Systems

MASH TL-4 Precast, Aluminum, Transparent Available in aluminum structure-mounted, precast ground-mounted, and transparent barrier variations, these systems are engineered to meet MASH TL-4 standards while offering modular installation, long-term durability, and customizable finishes. MASH TL-3 Precast Ground Mounted Noise Barrier MASH TL-5 Precast Foundationless Noise Barrier EKHO Infrastructure Solutions | Safety Systems 30

Wind Barriers Wind Barriers are engineered systems that reduce wind exposure and turbulence on bridges and elevated roadways to improve driver safety and infrastructure performance. Using custom-fabricated transparent panels, these systems help minimize wind-induced vehicle instability, reduce collision risks, and maintain bridge operations during extreme wind events. Median Barrier Extension (MBE) Transparent, crash-compatible systems designed to improve the aerodynamic performance and stability of bridge structures. Mounted on top of existing median barriers, these extensions help reduce wind-related bridge instability, such as vortex shedding and flutter, while enhancing roadway safety and preserving visibility. 31 EKHO Infrastructure Solutions | Safety Systems

Median Barrier Extension Median Barrier Extension Wind Barrier EKHO Infrastructure Solutions | Safety Systems 32

Transportation projects often face limited space, complex grading, and evolving structural demands. EKHO’s retaining wall systems are engineered to maximize performance while minimizing footprint requirements across transportation environments. RETAINING AND STRUCTURAL SOLUTIONS OUR SOLUTIONS 33 EKHO Infrastructure Solutions | Retaining & Structural Solutions

Absorptive Precast Noise Barrier EKHO Infrastructure Solutions | Retaining & Structural Solutions 34

35 EKHO Infrastructure Solutions | Retaining & Structural Solutions Gravity Block Retaining Wall

Featured Solutions Engineered retaining wall systems that deliver strength, flexibility, and clean design, built for tight spaces and tough site conditions. • Narrow Footprint Retaining Walls • EarthTec MSE Systems • Gravity Block Retaining Walls • Lagging Walls • Anchored Walls • Hybrid MSE Systems • Reinforced Soil Embankments • Welded Wire Walls EKHO Infrastructure Solutions | Retaining & Structural Solutions 36 Reinforced Soil Embankment

Mechanically Stabilized Earth Engineered retaining systems that reinforce compacted soil with steel or geosynthetic materials to create strong, durable, and cost-effective structures for earth retention. EKHO’s MSE solutions provide flexible designs that accommodate a wide range of site conditions, wall heights, and aesthetic requirements while delivering long-term performance. Reinforced Soil Embankment 37 EKHO Infrastructure Solutions | Retaining & Structural Solutions EarthTec MSE, Gravity Block Walls, Hybrid Retaining Wall Systems, Reinforced Soil Embankment, Welded Wire Walls

Cantilevered Walls Lagging Walls provide a permanent post-and-panel retaining system that combines structural steel posts with precast concrete panels to deliver reliable earth retention, reduced excavation, and long-term durability. Narrow Footprint Retaining Walls are engineered for space- constrained environments, offering a compact retaining solution that maximizes usable land while maintaining structural performance. Their versatile design allows seamless integration with noise barriers, handrails, and privacy screens, making them ideal for complex urban and transportation projects. Lagging Wall Narrow Footprint Retaining Wall EKHO Infrastructure Solutions | Retaining & Structural Solutions 38

Transparent Noise Barrier

APPLICATIONS

Interchanges and bridge infrastructure demand lightweight, high performance systems that maintain visibility while enhancing safety EKHO’s structure mounted wall systems reduce dead load requirements while improving sightlines and integrating seamlessly into complex bridge environments. ELEVATED STRUCTURES & PEDESTRIAN RAILINGS 41 EKHO Infrastructure Solutions | Applications

EKHO Infrastructure Solutions | Applications 42 Riverwalk East, Calgary AB Acrylite Pedestrian Railing I-74 Mississippi River Bridge, Iowa & Illinois Acrylite Pedestrian Railing

Urban and municipal roadways require infrastructure that balances safety, noise mitigation, and community integration. From calming curbs to engineered retaining and noise wall systems, EKHO delivers solutions that improve roadway functionality while supporting safer communities. ROADWAYS 43 EKHO Infrastructure Solutions | Applications

Sherman Access, Hamilton ON Narrow Footprint Retaining Wall EKHO Infrastructure Solutions | Applications 44

High-speed transportation corridors demand resilient systems engineered for safety, durability, and minimal maintenance. EKHO supports highway infrastructure with crash-tested safety systems and advanced noise barrier technologies designed for modern transportation demands. HIGHWAYS 45 EKHO Infrastructure Solutions | Applications

Hwy 401 Wilson Rd, Oshawa ON Precast + Acrylite MASH TL-4 Noise Barrier EKHO Infrastructure Solutions | Applications 46

One Partner: Complete Transportation Infrastructure Solutions. From retaining walls and crash-tested safety systems to noise barriers and sustainable infrastructure, EKHO helps transportation agencies deliver safer, quieter, and longer-lasting road networks across North America. 47 EKHO Infrastructure Solutions

Canada: 45 Frid Street, Suite 1, Hamilton, ON L8P 4M3 U.S.A.: 10 Campus Boulevard, Suite 103, Newtown Square, Pennsylvania, 19073 email@ekhois.com ekhois.com