SOILS AND SUBSURFACE INVESTIGATIONS. (1) Perform 8 borings to a depth of 10 feet below the existing grade, to determine the existing pavement structure, including base courses and shoulders, in order to determine quantities and qualities of materials available for project needs.
SOILS AND SUBSURFACE INVESTIGATIONS. (1) Conduct soils and subsurface investigations per normal DEPARTMENT practices as described in the Geotechnical Manual dated March 31, 2017 or as directed by the DEPARTMENT.
