Founded in 1980 by Roger Olson, RD Olson Manufacturing is headquarted in Kelso Washington. Manufacturing was started on our c ... urrent site in 1982, relying on Roger's expertise in heavy steel fabrication, road construction, crusher and rock quarry operation. Currently we have 102,00 square feet of manufacturing facilities located in 8 separate buildings, and each building is dedicated to a specific manufacturing function. We are spread out and located on a little over 12 acres. RD Olson offers the cutting-edge and state of the art heavy-duty fabrication for the rock crushing, screening and recycling industries. read more