Essential Solutions for Transportation Agencies
The Anderson UnderBridge Advantage for Transportation Departments
Our partnerships with transportation agencies have resulted in purpose-built solutions that address the specific needs of government infrastructure programs. When you partner with Anderson UnderBridge, you gain access to:
With 70% of DOT bridge inspection experts preferring to purchase rather than rent, our platforms are built for long-term reliability and performance, supported by comprehensive maintenance programs.
As North America’s only manufacturer of underbridge platforms, we meet all procurement requirements for American-made equipment required for federal- and state-funded projects.
ANSI-compliant operator certification ensures your personnel maintain proper qualifications to operate equipment safely and efficiently.
Own your critical infrastructure access equipment to ensure immediate availability during emergency bridge assessments and repairs.
Annual visual inspections and maintenance services keep your equipment operating at peak performance throughout its service life.
From routine inspections to maintenance projects and construction oversight, Anderson UnderBridge’s equipment adapts to all your department’s underbridge access needs.
Purchasing Equipment from Anderson UnderBridge
Our streamlined procurement process ensures transportation agencies receive the right equipment for their NHI bridge inspection needs with maximum efficiency and value. Throughout this process, we:
- Thoroughly assess your department’s needs to find the ideal underbridge platform
- Provide comprehensive, transparent pricing documentation, including detailed specifications and guaranteed delivery timelines
- Offer expedited delivery options to support urgent infrastructure inspection requirements
- Deliver superior long-term value through higher utilization rates compared to rental alternatives
- Enable improved project economics through reduced access costs on extended infrastructure projects
Purpose-Built Platforms Trusted by Government Authorities
Many of North America’s largest transportation departments trust Anderson UnderBridge equipment for their most critical infrastructure projects, including the Mackinac Bridge, Tappan Zee Bridge, Golden Gate Bridge, and Florida Keys Aqueduct projects. Our purpose-built platforms provide government authorities tasked with NHI bridge inspection, repair, and maintenance with reliable, efficient access solutions backed by ongoing support and service.
Explore Applications
Bridge inspection
Rapid access for engineering firms and DOTs conducting routine or emergency inspections, with minimal traffic disruption.
View ApplicationBridge maintenance
Expanded work platforms for repair crews, painters, and maintenance personnel requiring tools, materials, and multiple workers.
View ApplicationBridge construction
Stable, high-capacity platforms for hanging concrete forms, utilities, and structure components.
View ApplicationUtility installation
Extended platforms for running conduit, fiber optic cables, and other utilities along bridge spans.
View ApplicationExplore Equipment

Underbridge Platforms
Introducing Anderson UnderBridge’s comprehensive line of bridge inspection equipment, designed to meet the highest standards of safety and efficiency. Explore our available Hydra Platform (HP) and Hydra Platform Truck (HPT) vehicles:
- HP35: 35-foot trailer-mounted platform for inspections and maintenance
- HP35-E: Fully electric model for environmentally sensitive projects
- HPT38: 38-foot truck-mounted unit for minimal footprint requirements
- HPT43: 43-foot truck-mounted platform with extended reach
- HPT66: 66-foot truck-mounted platform provides more than 4,100sq.ft. of under-bridge area
Ideal for:
Span

Articulated Boom Equipment
Approximately 15% of bridges with complex designs, such as truss structures or extensive cross members, require a unique approach and a different type of equipment. For these situations, Anderson UnderBridge offers articulated boom trucks. These versatile units provide the flexibility and maneuverability needed when other equipment solutions are not optimized for certain bridge structures or designs. Articulated boom equipment is:
- Ideal for bridges with significant vertical obstructions
- Capable of reaching between structural elements
- Perfect for high-wall applications requiring reach-over capabilities
- Available with industry-certified operators
Ideal for:
Suspension
Truss