Aerial view of a busy highway interchange with multiple lanes and vehicles in motion, surrounded by green spaces, showcasing urban infrastructure and transportation.

Transportation Infrastructure - Inspection, Risk Management, and Quality Assurance

Transportation networks, such as highways, bridges, rail systems, airports and transit corridors, are the backbone of economic vitality, mobility, and public safety. Their performance and resilience depend on independent inspection, engineering expertise, utility risk management, and rigorous construction quality assurance.
Kiwa delivers these capabilities through the combined strengths of Raba Kistner, Sequoia Consultants, and T2 Utility Engineers (T2) — three industry leaders whose integrated approach enhances safety, reduces risk, and elevates the quality and reliability of transportation infrastructure projects.

What We Do

Kiwa supports the full lifecycle of transportation projects, from early planning and feasibility through construction and long-term asset management. Our teams deliver the data, testing, and engineering insight needed for design teams, general contractors and owners to make informed decisions that improve design reliability and assure construction quality.

Our capabilities include

Why This Expertise Matters

Transportation assets face demanding operational conditions: heavy loading, environmental exposure, aging structures, and complex construction requirements. Both planned and unforeseen impacts can create significant financial, operational, and safety risks.

Independent engineering, testing, and utility intelligence help project teams: 

  • Reduce construction and operational risk
  • Verify that materials, systems, and utilities meet regulatory and industry standards 
  • Identify and mitigate utility conflicts early 
  • Reduce the impact of undocumented or unknown utilities on design 
  • Support resilient design and extend asset life 
  • Provide reliable data to guide decision making during design, construction, and maintenance 

How Kiwa Delivers Value

Kiwa brings together the specialized strengths of Raba Kistner, Sequoia, and T2 Utility Engineers to deliver a comprehensive suite of services for transportation infrastructure:

  • Raba Kistner provides industry leading engineering consulting, geotechnical expertise, materials testing, environmental services, and construction quality assurance across major transportation programs. 
  • Sequoia Consultants brings deep experience in alternate delivery methods—including Design Build—offering construction quality solutions, independent verification, and owner support for complex transportation projects. 
  • T2 Utility Engineers is a North American leader in Subsurface Utility Engineering (SUE), utility coordination, and geospatial surveying, delivering ASCE 38 compliant investigations and advanced utility risk mitigation. 

Together, these capabilities improve design reliability, reduce construction and utility related risk, and support long-term asset performance across complex transportation systems. 

Who We Serve

Kiwa partners with:

Federal, state, and local transportation agencies

Aviation authorities

Rail and transit operators

Engineering (AEC) design firms

General contractors

Fabricators and material suppliers

Public and private project owners

Our services include

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Frequently asked questions

What transportation infrastructure services does Kiwa provide?

Kiwa provides environmental planning, geotechnical engineering, construction inspection, materials testing, SUE investigations, utility risk management, and lifecycle asset assessments for highways, bridges, rail, transit, and aviation projects.

How does Kiwa reduce transportation project risk?

Kiwa improves project safety and reliability through independent inspection, geotechnical expertise, utility mapping, materials testing, and construction quality assurance. This reduces design uncertainty, utility conflicts, and construction delays.

Does Kiwa offer Subsurface Utility Engineering (SUE)?

Yes. Through T2 Utility Engineers, Kiwa delivers ASCE 38 compliant SUE, utility locating, surveying, conflict analysis, and utility risk mitigation for transportation and infrastructure projects.

Can Kiwa support large, multi-year transportation programs?

Yes. Raba Kistner, Sequoia, and T2 Utility Engineers support mega infrastructure transportation projects with licensed professional engineers, environmental scientists, geotechnical specialists, and certified inspectors across the U.S. and Canada.

Are Kiwa companies prequalified with state DOTs?

Yes. Kiwa companies maintain DOT prequalifications for geotechnical engineering, materials testing, SUE, CE&I, environmental services and construction quality management.

How does Kiwa support Design Build and Public Private Partnership (P3) delivery?

Yes. Kiwa companies have extensive experience supporting Design‑Build, P3, and DBB projects. 

·       Raba Kistner – Supports DesignBuild and P3 programs with geotechnical engineering, environmental consulting, construction materials engineering, and AASHTO accredited testing, delivering comprehensive Quality Management Plans and independent quality oversight to ensure compliance, performance, and risk reduction across transportation megaprojects.

  • Sequoia Consultants – Provides specialized construction quality management for DesignBuild and alternative delivery projects, offering independent verification, QA/QC oversight, materials engineering, AASHTO Accredited and Caltrans certified comprehensive field and laboratory materials testing and owner focused quality solutions that help accelerate schedules while maintaining strict construction standards.

  • T2 Utility Engineers – Strengthens DesignBuild and P3 delivery through ASCE 38compliant Subsurface Utility Engineering (SUE), utility mapping, conflict analysis, and utility coordination, reducing design uncertainty, minimizing utility related delays, and improving constructability for complex transportation corridors.
What makes Kiwa’s transportation infrastructure services comprehensive?

Kiwa combines the strengths of Raba Kistner, Sequoia, and T2 Utility Engineers to deliver comprehensive engineering, SUE, environmental, and construction quality services that reduce risk and improve transportation infrastructure performance.

Delivered By

Raba Kistner

Raba Kistner is committed to customer compliance and empowering employees to continually improve and deliver our services right: the first time, on time, every time.

Sequoia Consultants

Sequoia Consultants, Inc. is a premier provider of construction quality assurance, quality control (QA/QC), and materials engineering services in the western United States.

A group of T2UE Engineers having a meeting at a client site

T2 Utility Engineers

T2 Utility Engineers specializes in services to reduce the risk of existing underground and above-ground utilities for infrastructure projects.