Posted 4/27/2021 13:47 (#8975594 - in reply to #8974122) Subject: RE: Illinois dot certified RR5 rock
NC Indiana
Here in Indiana we always called for INDOT 5" rip rap, but the quarries don't call it that. They call it INDOT Revetment Rip Rap. Surely your design engineer has knowledge of quarries that carry that size rock, or they need to visit with some area quarries like we did to find out the right lingo for IL.