CNA Engineers

Site Investigations

CNA Engineers plans and manages site investigations for surface and underground projects. Included are site evaluations, geophysics, geologic and geotechnical mapping, borings and core holes, sample and core logging, and laboratory testing. We conduct mapping, logging, and some types of geophysics. We subcontract for boring, core holes, geophysics, and laboratory testing.

Risk Assessment

Every project has cost and schedule risks that must be identified, assessed, mitigated and assigned to project stakeholders. Projects involving soil and rock carry the inherent risks related to the uncertain behavior of these materials. Our firm uses risk registers to manage the risk assessment process.

Vibration Susceptiblity Assessment, Precondition Surveys, and Vibration and Sound Monitoring

Heavy equipment, pile drivers, and blasting can produce vibrations and sound that are a nuisance or cause damage to nearby residences, businesses, and infrastructure. CNA Engineers evaluates the potential risk due to these based on the type of construction being performed and proximity to nearby facilities. We also provide pre- and post-condition surveys of nearby structures so that damage claims can be evaluated. We also specify vibration and sound limits and provide monitoring during construction.