Rii has provided professional engineering services for aviation projects since the 1980s, gaining extensive expertise in their design and construction under the guidelines of public capital improvement programs. Rii has a niche in the aviation sector with more than 50 airport clients ranging from municipal and private airports to larger international airports. Rii has worked extensively with Federal Aviation Administration (FAA) documents pertaining to pavement management, evaluation and design, obstruction surveys, and construction quality control and quality assurance procedures and documentation. Similarly, over the past 40 years, Rii has updated and developed FAA standards on airport pavement materials, design procedure and recycling methods.

Construction Services

Construction Managment, Construction Administration, Construction Inspection, Construction Observation

Construction Safety Plans (CSPP)

Pavement Testing & Geotechnical Services

Safety Plan Compliance Document (SPCD) Preparation Services

sUAS (Drone) Construction, Condition and Asset Documentation

Pavement Classification Rating (PCR) Calculation

Certifications & Prequalifications

Rii maintains many state and municipal registrations, prequalifications and certifications nationwide, providing services to both the public and private sectors. These include participation and certification in many disadvantaged, minority, female and women-owned business programs. For an entire list of our current certifications, please click the button below.

Tim Mentel, CM, PMP

Director, Aviation and Construction



Laboratory Certifications

Rii operates and maintains materials testing laboratories at our Columbus, Cleveland and Cincinnati, Ohio, offices and mobile laboratory locations. All three of our office laboratories are inspected and granted certification by the AASHTO Accreditation Program (AAP).  Rii’s laboratory facilities have the most sophisticated equipment to conduct a wide variety of services. For more information about our laboratories, please click the button below.