Rii has been engaged in geotechnical and material engineering and laboratory testing services since 1973. Our vast project experience includes subsurface investigations for municipal, transportation and commercial development projects. Additionally, we have provided geotechnical expertise to local, state and federal projects involving design of deep foundations, slope remediation, retaining walls, tunneling systems, and pavements.
Our Equipment
Our in-house fleet of drilling vehicles includes both truck- and ATV-mounted rigs. We also possess specialized equipment for performing in-situ pavement and subgrade evaluations. This includes the Automated Dynamic Cone Penetrometer (ADCP), which determines in-situ strength and thickness of soils, unbound granular base and subbase layers and subgrades; and the Lightweight Deflectometer (LWD), which determines the elastic modulus of the pavement structure.
Our Soil and Material Testing Laboratories
Rii operates and maintains testing laboratories throughout the state of Ohio, granted certification by the AASHTO Accreditation Program. Information regarding our three laboratories, including their respective accreditations, can be viewed online here.
Our Soil and Material Testing Laboratories
Rii operates and maintains testing laboratories throughout the state of Ohio, granted certification by the AASHTO Accreditation Program. Information regarding our three laboratories, including their respective accreditations, can be viewed online here.
Our Qualifications
Rii is prequalified with the Ohio DOT and Indiana DOT for the following services:
Geotechnical Engineering Services
Geotechnical Testing Laboratory
Geotechnical Field Exploration
Geotechnical Drilling Exploration
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Geotechnical and Material Engineering Services
Soil and Rock Drilling
Laboratory Classification and Specialty Testing of Soil and Rock
Design of Mechanical Slope Retention Systems
Geophysical Investigations
Geotechnical Instrumentation Installation and Monitoring
Bearing Capacity and Settlement Analysis of Shallow and Deep Foundation Systems
Retaining Wall, Sheet Piling and Anchor System design
Hydrogeological Studies
In-situ Soil and Rock Testing for Tunneling Systems
Slope Stability and Seepage Analysis
Pavement Design
Dewatering Planning Development
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