The State Route 125 South Expressway project extends from just north of the Mexican border to State Route 54.  The total project length is approximately 11 miles. 

Project Highlights :

• Group Delta Consultants (GDC) performed preliminary geotechnical investigations for the Gap, Connector, Main Toll Road, and the Otay River Bridge for CTV as the sole geotechnical engineer.
• During the preliminary investigation, GDC identified areas which would require blasting or heavy ripping
• Recommended supporting of most bridges on shallow spread footings
• We provided site reconnaissance, geologic mapping, drilling and sampling of borings, test pit excavation, geotechnical analysis, and report preparation.