I have a project site with 30-100 feet of non-engineered fill. I've conducted hollow-stem soil borings and have collected samples with SPT and California Modified samplers. The blow counts were recorded and corrected to (N1)60 blow counts with an additional correction for the Cal. Mod. samples...
From what I've found digging around on the internet is that the California DOT, in the 1970's, tested a variation of the Jersey barrier or Type 50 median barrier for temporary applications; to protect workers doing construction along roadways. I know that each barrier is about 20 feet long and...