Dura-Stress Inc. Dura-Stress, Inc. Dura-Stress, Inc. has been a pioneer in the development of prestressed concrete components since we began operation in 1949. Known for applying... technological expertise in a unique fashion, our reputation was built on the pursuit of new challenges well in advance of others. As a charter member of the Prestressed Concrete... department at Dura-Stress is a critical component of effectively and efficiently completing a project based on a customer s needs. Prestressed concrete is an engineered product which...