(City and County of Honolulu) Significant grading of existing slope above roadway to accomodate for 300’+ impact fencing, 200’ shotcrete averaging 14ft high, 200’ concrete drainage swale.
Sierra Drive Rockslide Mitigation
(City and County of Honolulu) Significant grading of existing slope above roadway to accomodate for 300’+ impact fencing, 200’ shotcrete averaging 14ft high, 200’ concrete drainage swale.