Riprap, also known as rip rap, rip-rap, shot rock, rock armour or rubble, is rock or other material used to armor shorelines, streambeds, bridge abutments, pilings and other shoreline structures against scour, water or ice erosion.
It is made from a variety of rock types, commonly granite or limestone, and occasionally concrete rubble from building and paving demolition. It can be used on any waterway or water containment where there is potential for water erosion. maybe when i referred to rip rap i used the wrong term but i lived in greenfield and was a manager at the grocery store for several and fished Stockton almost daily after work and think i know the lake pretty well if i wasnt fishing i know someone local who was. i just try to be helpful on here and share my years of experience and relay info from the locals who fish it daily. i apoligize if i used the wrong term i used it as a generalized term for the areas on and around the bridge embutments.