A geotechnical investigation was performed for rehabilitating and re-aligning the roadway as well as providing drainage improvements.  Pavement rehabilitation for parking ramps and a marina parking lot were also included.  The condition of the existing pavement was evaluated both visually and by performing non-destructive testing using a falling-weight deflectometer.  The existing pavement section consisted of a PCC base with a bituminous overlay.  The deflectometer was used to evaluate the structural integrity of the pavement section and the load transfer at the joints in the PCC pavement. The field investigation also included taking core samples of the pavement and drilling borings to obtain samples of the subgrade soils.  Laboratory testing was performed to classify and determine the California Bearing Ratio of the subgrade soils.  The rehabilitation plan included the design of new pavement and the rehabilitation of the existing pavement by means of milling, full-depth base and joint repairs, and overlaying.

Lab Testing:

• Soil Classification
• California Bearing Ratio

• Evaluating existing pavement to minimize the need for full-depth base repairs.