Common use of Geotechnical Evaluation Clause in Contracts

Geotechnical Evaluation. A. For this geotechnical exploration, Olsson Associates proposes to perform a site reconnaissance to review the areas of concern identified in the field evaluation report. During this time, we will perform soil borings at retaining wall locations so that geotechnical design parameters can be developed. Access along the trail is limited based on the terrain and the trees. As such, soil borings will be performed using hand augering techniques. We will perform the borings at the retaining wall locations, with intermediate borings located along the alignment as deemed necessary. The hand auger borings will generally be advanced to practical refusal, which would be anticipated to occur within 6 to 8 feet of the ground surface. In several locations, weathered shale or limestone bedrock may be exposed at the surface or be located at a relatively shallow depth. Hand auger borings would not be able to penetrate through the bedrock surface. Samples of the overburden soils would be obtained as necessary to classify the soils and perform laboratory testing (moisture content, Atterberg limits, density and compressive strength). B. The consultant shall prepare geotechnical recommendations for the primary purpose of developing geotechnical design criteria to use in designing retaining walls, drainage structures, earthwork estimates, and pavement sections for the project. C. The consultant shall prepare and submit three (3) copies of a geotechnical report to the city’s project manager for review.