Armco Culvert Manufacturers Association was a trade association comprised of road materials manufacturers and distributors from every state that focused on drainage and sewage. It was headquartered in Middletown, Ohio. This item is a typescript that provides a highly technical and detailed instructional guide to the field application of the Armco Jacking Method, a system of trenchless culvert installation developed by the Armco Culvert Manufacturers Association. Contents include a series of reports on completed jobs in a variety of locations.